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Vol. X No. I 1
January 2010 Vol. X No. I
RNI Reg. No. DELENG/2001/4847
LIGHTNEWSLETTERof the indian society of lighting engineers
the official
GOVERNING BODYDr. A.D. Kulkarni PresidentMr. Gulshan Aghi Vice President Mr. P.K. Majumdar Hon. General SecretaryMr. R. Nagarajan Hon. TreasurerMr. I.M. AsthanaMr. C.R. Datta Ms Rohini ManiDr. Saswati MazumdarMr. Rajat Roy Mr. S. Venkataramani Past President Ex-officio members from State CentresMr. Prakash Chatterjee Chair, CalcuttaMr. A.K. Jain Chair, DelhiMr. P.C. Barjatia Chair, MumbaiMr. Dilip Kumbhat Chair, ChennaiMr. M.S.N. Swamy Chair, KarnatakaMr. R.S. Saxena Chair, RajasthanEx-officio, President, ELCOMA:Mr. Sunil Sikka Permanent Invitee:Mr. H.S. MamakDirectors of Committees:Mr. S. Venkataramani CIE IndiaMr. H.S. Mamak Conference & ExhibitionDr. Saswati Mazumdar Education & TrainingMr. Gulshan Aghi MembershipMs. Rohini Mani Publication & PublicityMr. N. Nagarajan StandardisationMr. I.M. Asthana General AdministrationMr. Dilip Kumbhat Finance
EDITORIAL COMMITTEEMr. H.S. Mamak EditorMr. P.K. Mukherjee Associate EditorMr. P.C. Barjatia Ms. Rohini ManiMr. M.S.N. Swamy Mr. P.K. Majumdar Ex-officioMr. R. Nagarajan Ex-officio
Printed & Published by Mr. Harcharan S. Mamak, A 274, Defence Colony, New Delhi 110 024 on behalf of Indian Society of Lighting Engineers and printed by him at Graphic Point Pvt. Ltd., WZ-429 B, Naraina Village, New Delhi.
FROM THE PRESIDENT’S DESK
2010 is going to be a busy year for ISLE.
The State and Local Centres have planned their programmes to celebrate the Silver Jubilee. There will be lectures, seminars, workshops, training programmes and quiz shows among other activities. There will also be cultural events at each centre meant for members and their families. All members should take active part in the State and Local Centre activities. The internationally acclaimed lighting designer, Mr. Mark Major will be giving the Silver Jubilee Lectures at Mumbai and Delhi while Mr. Behr Champana (well known now to ISLE members from Lii2005 and Lii2009) has agreed to give a lecture at Bangalore.
On the Lighting Education front also things are moving forward. Mr. Venkataramani is working to make the web enabled lighting course operational in the near future.
The Lighting Education Trust, UK has agreed to make ISLE its exclusive partner for their diploma and post graduate courses on lighting. ISLE will decide on the universities and institutions in India that these courses will be offered to. Presently these courses are run through the London South Bank University and attracts great interest from students including many from south east Asia. For use in India these courses will be modified to include Indian Standards and data.
LRC (the Lighting Research Centre at the Rensselaer Polytechnic Institute in Troy, NY) has offered to run two courses in two ISLE State Centres every year over the next 3 years. The Bureau of Energy Efficiency has agreed to contribute 50% of the cost of running these courses. The operational details of this collaboration are being worked out and dates will be finalised and announced shortly. In the first year these courses will be run in Chennai and Mumbai. In future years the courses will be run in other State Centres.
In these past 25 years ISLE has clearly established its credentials both nationally and internationally as the
2 Light Newsletter
Vol. X No. I 3
EDITORIAL
promoter of lighting education and good lighting practice. Let us make the most of the new opportunities in our Silver Jubilee year to take this further. After all, we have succeeded in creating an awareness among professionals involved in the built environment as well as the lay public that lighting is a specialised area of interest. And this is becoming evident from the increase in lighting activities from outside our Society as well. There are an increasing number of lighting exhibitions and conferences being organised as well as a recognition by the design community that lighting design is a specialised discipline with far reaching implications for aesthetics as well as energy economics.
In the second week of February 2010 Goa was the venue of the International Lighting Seminar “Lights in Goa” organized by the Goa Regional Centre of IIID and the Professional Lighting Design Association (PLDA). I was happy to be a part of this event of this well attended outstanding Lighting event.
ONGC has decided to establish an Energy Centre with a corpus of Rs.500 crores. LEDs and the development and promotion of this field has been identified as the area of interest. Mr. H. S. Mamak has been included in the concept committee.
While all this is evidence of the good work done by the Society in the past there is much to be done. We are fortunate to be a part of this exciting discipline of lighting, especially at this juncture where both technology and concepts are changing at a rapid pace.
I look forward to hearing your ideas.
Avinash D KulkarniPresident
It is with great sadness that we received the news of the passing away of the ISLE stalwart Dr. K.K. Rohatgi-Mukherjee. Our sincere condolences go out to her family.
Karnataka State Centre is continuing its work in spreading lighting awareness in rural areas. There are also reports on activities from Mumbai and Indore. The level of activity is definitely going to be accelerated in the coming months with the Silver Jubilee celebrations.
The preparations for the Lii2011 event in Chennai are underway and we hope that ISLE members will help ensure widespread participation both in the exhibition as well as the conference.
The CIE conference on Lighting Quality and Energy Efficiency is round the corner in Vienna. We are proud
that ISLE Fellow member Mr. S. Chakraborty is delivering a technical paper and our Immediate Past President and CIE Vice President, Mr. S. Venkataramani will also be attending. We do hope that some more ISLE members will also attend this extremely informative and important conference.
Later in the year CIE is also holding a tutorial and expert symposium on spectral imaging methods in August and an expert symposium on appearance in September. And the call for papers for the 27th CIE Session in Sun City, South Africa has been sent out. The abstracts are due in September. There must be a good number of papers from India this time. There is still time and I would request those members who can, to send in their abstracts.
Mr. Brandston with his comments on the GLS lamp has ensured that the Letters to the Editor column is being kept busy. It would appear that many members would like to comment on the subject. We are carrying some letters in this issue.
While ISLE often addresses the lighting community, the general user or “common man” also needs to be addressed. Many of us have the knowledge to do this and help the general user to improve his lighted environment while saving energy and money. As a first step in this direction the President has contributed an article on lighting options for the common man and we look forward to more contributions to follow.
We are also carrying an article by Arun Moorthy on the use of smart networks at the Delhi Metro headquarters for keeping costs under control.
Once again I would like to appeal to members involved in lighting projects to share their experiences with others through the newsletter by sending us articles for publication. We are aware that several of our members are involved in the lighting design for the Commonwealth Games and others in the beautification of Delhi. We request these members to please send us write-ups for publication in the Newsletter.
H.S. MamakEditor
MAILING ADDRESS
Our current mailing address isIndian Society of Lighting EngineersA-274, 1st floor, Defence ColonyNew Delhi 110 024Tel: 46562981, 46562982Fax: 46528477E-mail: [email protected], www.isleind.org
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ISLE ACTIVITY
March 4-7, 2011, Chennai
The next edition of the ISLE international Exhibition and Conference, Lii2011 is scheduled to take place in Chennai in March next year. This is the first time that the Light India International will be held in a location outside Delhi.
The event will take place at the Chennai Trade Centre, the international trade fair facility in Chennai which is a joint venture of the India Trade Promotion Organization, Govt. of India and the Tamilnadu Industrial Development Corporation (TIDCO), Govt. of Tamilnadu.
Display Profile
Commercial, Retail, Residential LightingIndustrial LightingStreet LightingEnvironmental/Landscape LightingCity BeautificationArchitectural LightingRailway/Metro LightingAirport/Runway LightingRefinery/Mine LightingLED LightingIntelligent LightingSecurity LightingLighting with Non-conventional EnergySpecialty LightingLighting Accessories and ControlsPower Saving Lighting SolutionsTesting and Measuring Equipment
Support
Lii2011 is supported by the following organizations:
Tamil Nadu Electricity BoardTamil Nadu Energy Development AgencyMinistry of Micro, Small and Medium Enterprises,Govt. of IndiaNational Small Industries CorporationTamil Nadu Small Industries DevelopmentCorporationBharat Sanchar Nigam Limited
Detailed information can be obtained from:ISLE Chennai State Centre
D-10 Ambattur Industrial EstateChennai 600 058
Tel: +91 44 26257710, 42089999Fax: : +91 44 26257866, 26243500
Email: [email protected]
OBITUARY
Prof. Dr. (Mrs.) K.K. Rohatgi - Mukherjee
Krishna Kamini Rohatgi-Mukherjee, who was the first lady committee member of ISLE, passed away peacefully on December 31, 2009 at Nagpur. She was a D.Phil (Oxon), Fulbright Scholar and former Head of the Department (Physical Chemistry) at Jadavpur University, Kolkata.
After the first State Centre of ISLE was formed in Calcutta in 1987, she became a member of the Calcutta State Centre Committee. At that time she was the President of the International Photobiology Society (IPS).
ISLE was proud to nominate her as the member to represent India in the CIE Division 6, Photobiology and Photochemistry. In that capacity she also became an ex-officio member of the Governing Body of ISLE, as was the practice from the end of eighties till the decade of nineties.
In February 1989, the India Photobiology Society had a meeting in Calcutta. Dr. Rohatgi-Mukherjee, who was the Secretary of the India Photobiology Society, organised a well-attended Seminar on behalf of the Calcutta State Centre of ISLE, in which the experts attending the IPS meeting spoke on various subjects related to Light and Health, for example the treatment of Vitiligo.
Dr. Rohatgi-Mukherkjee had another connection with lighting since birth. Her father was the Late Binay Krishna Rohatgi, and the family owned Pradip Lamps. Her brother Mr. Kumar Rohatgi was a very active member of the Lamps and Accessories Sectional Committee of the BIS till the early eighties. Now the family is in LEDs in a big way. But she was seriously involved in academics. She was literally wedded to Chemistry. Her husband was Late Prof. Dr. Sushil Kumar Mukherjee, a well known professor of Chemistry and former Vice Chancellor of University of Calcutta and Kalyani University (Dr. S. K Mukherjee also delivered a lecture in a Calcutta State Centre Seminar in 1988 on the influence of Light on Science).
Although Dr. Rohatgi–Mukherjee was no longer active for the last 10 years due to advancing age and poor health, her passing away has finally brought to a close the chapter of ISLE activity in Photobiology, Light and Health, which we started so well more than 20 years ago, but could not sustain.
May the soul of Krishna Kamini rest in peace.
Pranab Kumar Bandyopadhyay
Vol. X No. I 5
MUMBAI STATE CENTRE
Annual General MeetingOctober 30, 2009, Mumbai
The Annual General Body Meeting of Mumbai State Centre was held on 30.10.2009 at Nehru Planetarium, Worli, Mumbai. Points as per the Agenda were discussed. Discussions were also held on the programmes for the Silver Jubilee celebrations. Apart from specific programmes, it was decided to give more emphasis on
• Membership Drive
• Student activities
• Educational activities with the support of Colleges and Universities.
K.Naveen Hon.Secretary
ISLE MSC——
Lecture on Evolution in Lighting Technology October 30, 2009, Mumbai
An informative and interesting lecture on Evolution in Lighting Technology was made by Mr. K. Naveen, GM, Bajaj Electricals, Mumbai and Hon. Secretary, ISLE MSC on 30.10.2009. After taking the audience through
the developments in Lighting, details were also given on the latest trends in SSL/LED and their application for several areas. The programme was arranged at the Nehru Planetarium in Worli and was well attended by members, students and lighting professionals.
S.Alvares Coordinator – Programmes :
ISLE MSC
Membership DriveNovember 13, 2009, Mumbai
As per the decision taken during the Annual General Body Meeting held on 30.10.2009, an Awareness
Mr. Naveen taking questions
Programme on ISLE Activities was organised at Reliance Industries Ltd. at their Navi Mumbai complex exclusively for their Engineers and Staff on 13.11.2009. It was attended by about 35 members including Mr. Sanjay Srivastava, Vice-President, Ms. Rohini Bharadwaj Assistant Vice-President (Infrastructure Engineering), both from Reliance Retail Limited, Navi Mumbai.
After the welcome address, Mr. S. Alvares, Coordinator, Programmes made a brief presentation on the aims and objectives of ISLE and the organizational structure. Dr. Prakash Barjatia, Chairman informed the gathering about the different activities of Mumbai State Centre including its Pune and Indore Local Centres. Subsequently Mr. A. Auddy, Hon. Treasurer gave details of membership fees and procedure.
Subsequently, an interesting presentation on Modern Trends in Lighting was made by Mr. K. Naveen, GM, Bajaj Electricals, and Hon. Secretary, ISLE, MSC, which was well appreciated. In addition to above members from MSC, Mr. Arvind Mule of BEST was also present during the programme.
Thanking the RIL management for their courtesy, Dr. Barjatia appealed to everyone present to become members and thus to strengthen ISLE for expanding its activities. He expressed special appreciation and complimented Mr. Bhavesh Mehta, Asst. General Manager, Engineering Design, Reliance Retail Limited for his determination to organise the programme and ensure that it was
Mr. Barjatia addressing the audience
6 Light Newsletter
successful. He also appreciated the sincere efforts made by Mr. Alvares in coordinating the programme.
As a result of this initiative 10 individuals from RIL/RRL have already applied for ISLE Membership, almost all of them for Life Membership.
Prakash Mavinkurve Coordinator – Membership :
ISLE - MSC
INDORE LOCAL CENTRE
Lecture on Modern Trends in LightingNovember 29, 2009, Indore
Indore Local Centre organised a lecture on Modern Trends in Lighting at Hotel South Avenue by Mr. Rajendra Raje. Speaking on the changing trends in modern work places, he felt that the lighting design needed to take these changes into account. Lighting was also influenced by considerations of energy saving, change in lifestyles and awareness of environmental issues.
The meeting was chaired by Mr. Akhilesh Jain, Chairman of the Indore Local Centre.
——
Lecture on the Optimisation of Lighting in BuildingsDecember 27, 2009, Indore
A lecture on the Optimisation of Lighting in Buildings by senior Architect, Dr. Kiran P. Shinde was organised by Indore Local Centre.
The lecture covered lighting in both interior and exterior applications. To illustrate various optimization techniques, he used examples from the lighting of hotels and hospitals.
The welcome address was made by Mr. Sameer Kotwal and the vote of thanks was given by Mr. Dinesh Wadhwa.
KARNATAKA STATE CENTRE
Training Programmes in Rural Areas
ISLE-KSC has tied up with other NGO’s engaged in imparting training in rural areas. This is based on the project proposal that ISLE-KSC had submitted to the European Commission for training people in villages for utilisation of Solar Photovoltaic panels as well as different types of fluorescent lamps and Light Emitting Diodes in households and in common areas under village panchayats.
The first programme was conducted at Chennapattana October 2009 (see Newsletter Vol IX No. IV) and the second one was conducted at Gubbi January 2010.
While no manufacturer has been associated with this activity, Karnataka State Centre feels that it would be desirable that the manufacturers step in as they could set positive examples of cost effective and environmental friendly installations in common or community facility areas in villages, which will open up the vast rural household market.
The second programme of training on Solar Lighting was conducted in association with TIDE (Technology Informatics Design Endeavour) for women. This programme had a different orientation, with a focus on highlighting the economics or cost benefit of retrofitting existing lighting installations with energy efficient light sources. The program was attended by 15 women in the age group of 22 to 45 from 7 different villages from around the small town of Gubbi, in Tumkur district.
The participants were trained in the basics of
• entrepreneurship,
• organisation of information dissemination meetings in the neighbourhood.
ISLE-KSC added the following inputs:
• Explaining the benefits of replacing GLS lamps with fluorescent lamps either TFL or CFL,
• Solar panel (SPV) and the associated devices, like control unit, battery etc, including aspects of orientation,
• Replacement of 40 W or 36 W tubes with 28 W tubes,
• LEDs & LED based light fittings including their applications, both for general lighting, portable light source and as standby/emergency lighting.
The second stage of the training covered the method of assessing, working out and explaining the life cycle cost benefit analysis for the proposed changes.
Mr. Swamy explaining a point
Vol. X No. I 7
The positive environmental aspects such as the benefits associated with energy efficiency, benefits of reduction of carbon emission by switching over to solar energy, and the negative aspects such as mercury pollution from improper disposal of fluorescent lamps were explained in brief.
TIDE has scheduled the follow-up programmes during the following fortnight and will give support by handholding in each one of the initial programmes, which will now be organised by the trained participant groups in their respective villages.
——
Lighting WorkshopOctober 8, 2009, Bangalore
ISLE Karnataka State Centre conducted a workshop on Lighting at BESCOM in Bangalore. About 40 Engineers of the rank of SE, ExE and AE connected with maintenance attended the workshop.
Mr. Sathyaprema Kumar, GM welcomed the delegates, faculty members, the Managing Director and Technical Director of BESCOM and members of the media.
Mr. M.S.N. Swamy, Chairman, ISLE KSC welcomed Mr. Tushar Giri Nath IAS, the Managing Director, Mr. Nagesh, the Director Technical and Mr. Sathyaprema Kumar the GM of BESCOM and others present on behalf of Karnataka State Centre.
Mr. Sathyendra, Hon. Secretary, gave a brief on ISLE and its activities and projects undertaken.
Mr. Tushar Giri inaugurated the workshop. In his inaugural address he focused on the prime problems and the areas requiring attention by lighting professionals and service providers.
Mr. Sathyendra gave the vote of thanks and invited the speakers to begin the technical session.
The following papers were presented.
8 Light Newsletter
Terms of Reference: To review the current state of dosimetry applied to low-level-laser/light therapy (LLLT), referred to also as “laser biostimulation” or “laser photobiomodulation,” and prepare a CIE technical report on preferred methods for dosimetry.
Although a wide variety of low-irradiance laser and LED phototherapy devices are employed in medical practice for pain relief and wound healing and treatment of chronic disease, a full understanding of the underlying mechanisms of photobiological interactions remain under scientific investigation. A key challenge is to establish a uniform, standardised means of expressing the photobiological exposure of tissue. The role of this TC is to recommend scientifically sound dosimetric methodology that will apply independent of the exact mechanism.
The following new Reportership has been established:
R2-47: Photometry of curved surface sources(Hsueh Ling Yu, TW)
——
CIE 2010 Lighting Quality & Energy EfficiencyMarch 14-17, 2010, Vienna, Austria
This important conference will cover Energy Efficiency and Policy Framework, Lighting Quality and Lighting and Renewable Energy with special emphasis on lighting in Developing Countries. Each of these areas will be covered by 3 modules which will be either Tutorials, Workshops or Sessions.
CIE 2010 will highlight
• Surveys of experimental projects
• Lighting techniques and scenarios
• Integrated approaches in lighting design
• Lighting quality criteria
• Future possible lighting schemes
• Methods to compare lighting installations
• Case studies of energy efficient lighting
• Review of energy efficient lighting control systems
• Energy efficiency and environmental compatibility
For further details and registration check the conference website at vienna2010.cie.co.at.
——
CIE Tutorial and Expert Symposium on Spectral and Imaging Methods for Photometry and RadiometryAugust 30 – 31, 2010 Bern, Switzerland
The field of lighting is currently undergoing many historical changes. Solid state lighting is replacing
Source Management M.S.N. Swamy
Lighting Controls Ravi Rao
A New Look at Street Lighting Bhavani Prasad
LEDs Bipin Rajgopal
Latest Trends in Street Lighting K. Naveen
Proper Disposal of Discharge Lamps M.S.N. Swamy
The concluding session chaired by Mr. Nagesh was found to be interesting and educative by the delegates. The discussions covered the following topics.
- The environmental hazards caused by improper disposal of discharge lamps
- Energy saving by choosing the right light source from the wide range available rather than by switching off
- The use of LEDs and fibre optics to replace neon in signage applications to save energy
- Use of light sources without IR and UV emission for art objects and valuable documents
- Systematic lighting design for increased user comfort and safety of pedestrians and motorists including lighting of intersections and footpaths at a cost substantially lower than present street lighting
- Caution in the use of LEDs for commercial, industrial and road lighting till product stabilization and availability of proper testing facilities.
Mr. Nagesh requested the delegates to discuss what they had learned with their colleagues and others connected with lighting thereby leading to energy saving and environment protection.
Mr. Sathyaprema Kumar proposed a vote of thanks, thanking the speakers for their excellent presentations and inviting them to join hands for promoting lighting education as external faculty.
CIE ACTIVITY
New TCs
The following new TCs have been established:
TC 5-26: Guide for the Lighting of Sport Events for Colour TV and Film Systems
(Chair:Alan Smith, GB).
Terms of Reference: To prepare a revision of the 1989 report to better relate to CIE 169:2005 and the present state of the art of HDTV.
TC 6-65: Photobiological Dosimetry for Low Level Laser/Light Phototherapy
(Chair: Terry L. Lyon, US)
Vol. X No. I 9
classical lighting products, and these new devices require advanced characterisation and measurement methods.
The International Commission on Illumination (CIE) offers a one day tutorial on state-of-the-art techniques in the field of photometry. Invited experts will present talks on basic concepts and recent advances in photometric measurement techniques. On the following day, a scientific symposium will feature contributed papers.
This meeting is open to everyone with an interest in any aspect of the measurement of visible radiation and colour – photometry, radiometry and colorimetry.
Tutorial Lectures (preliminary)
• Basic concepts in photometry, Peter Blattner, METAS
• Colorimetry and spectral colour measurement, Yoshi Ohno, NIST
• Measurement uncertainties in radiometry and photometry, Georg Sauter, PTB
• Imaging luminance devices, Udo Krüger, Technoteam GmbH
• Band-pass and spectral corrections, Emma Woolliams, NPL
• Measurement of high power LEDs, Yuqin Zong, NIST
• Photometric characterisation of large area OLEDs used for lighting,
Armin Sperling/Thorsten Gerloff, PTB
Call for Papers
Authors are invited to submit two-page extended abstracts of their proposed contributions, in English, no later than 30 April 2010, by e-mail to: [email protected]. The abstract template available from the conference webpage should be used. The extended abstracts should be suitable for printing (if accepted) in black and white in the abstract booklet, which will be distributed at the Symposium.
Papers should deal with one of the following subjects:
• Advances in methods for photometry, radiometry and colorimetry including spectral and spatial correction methods (band-pass, stray-light, spatial and angular resolution);
• Photometry of OLEDs, (high-power) LEDs, and SSL products (including energy saving aspects);
• Photometry/radiometry for circadian and mesopic quantities and visual appearance;
• Light sources with programmable spectral distributions (including tuneable monochromatic sources and spectrally tuneable white-light sources);
• Imaging luminance measurement devices and near field goniophotometry;
• Uncertainty of spectrally, spatially and angularly resolved quantities;.
• Other developments and new techniques in photometry and radiometry.
For further information contact:
Symposium Secretariat Office SLG E-mail: [email protected]
Tel: +41 (0)31 313 88 11
——
2nd CIE Expert Symposium on AppearanceSeptember 8–10, 2010 Gent, Belgium
Scope
A symposium for those concerned with the
measurement of aspects of visual appearance and the
understanding of the human factors of lighting:
• To present the state of the art in our understanding
of the perception of colour and gloss.
• To explore the possible applications of visual
appearance knowledge to several aspects of
lighting design and comfort.
Visual assessment of the appearance of objects and
materials is a very complicated process and four research
areas have been suggested: colour, gloss, texture and
translucency. Much work has been done to quantify colour
appearance, but there is still much to understand about
the perception of gloss, while the elaboration of visual
correlates of texture and translucency is in its infancy.
Lighting designers pay increasing attention to lighting
comfort, which must at least partly be determined by the
spatial distribution of the colour and brightness attributed
for example, to walls, ceiling, and furniture.
Appearance scientists, especially those interested in
colour and gloss, could offer input to those attempting to
describe lighting comfort and it is clear that both research
fields could benefit from a multi-disciplinary approach.
This CIE Expert Symposium organized by TC 1-72,
Measurement of Appearance Network aims to create a
symbiosis between both research fields, bridging the gap
between colour, colour harmony and colour emotion;
between gloss, lightness, brightness and glare; and
between CIE Division 1, Vision and Colour and CIE
Division 3, Interior Environment and Lighting Design.
Call for papers
Abstracts related, but not restricted to the following items are welcomed.
10 Light Newsletter
• Colour difference evaluation, colour rendering, colour fidelity, colour harmony, colour and emotion
• New gloss metrics, gloss, haze and distinctness-of-image
• Luminance, lightness and brightness perception of related and unrelated colours, glare
• Holistic approach to lighting design: effects of contrast and harmony on lighting comfort. Authors are invited to submit an extended abstract of up to 1000 words of their proposed contributions, in English, using the submission Paper Form (download Word template). This abstract may include up to 4 figures or tables. Extended abstracts should be sent by e-mail to the Chair of the Technical Program of the Symposium no later than April 30, 2010, indicating the preferred method of presentation (oral or poster):
Dr. Michael [email protected]
Authors will be notified of acceptance of their abstract by June 15, 2010.
Accepted abstracts will be gathered in the “Book of Abstracts”.
For further information contact: Peter Hanselaer
KaHo St.-Lieven - Light&Lighting Laboratory Gebroeders Desmetstraat 1
9000 GENT Belgium
Tel: +32 9 265 86 10 [email protected]
http://www.lichttechnologie.
——
The 27th CIE Session of the CIE11-15 July 2011, Sun City, South Africa
Format Of The Session
The 27th Session of the CIE will be held in Sun City, South Africa, from 10 to 15 July 2011: According to the proposed time table the Session will be divided into two parts:
1. The conference part from 11 to 15 July 2011 (morning) with invited papers, presented papers, presented posters, posters at the stand and workshops.
2. The technical meetings of the Divisions from 11 to 15 July 2011 (afternoon).
The Session will begin on 10 July and will end on 15 July. The conference part has provision for four invited papers, 74 presented papers and posters as well as a number of posters presented at the stand and up to six workshops. For the posters presented at the stand, ample room will be available.
Call for Papers
Prospective contributors are invited to submit papers dealing with new results in the field of light and lighting. The subjects of the papers should be relevant to the work and the terms of reference of the seven CIE Divisions and their Technical Committees. (For detailed information on domains of interest, the CIE website should be consulted.) Contributions published before will not be accepted. Papers dealing with questions of direct concern to the work of the Divisions will get priority.
Procedure for Submission of Papers
Contributions can be only submitted electronically.
Electronic submission (will be activated soon):
for details on the electronic submission, please visit
the CIE website (http://www.cie.co.at/ and click on
“Conferences”).
The extended abstract should be submitted in English
with a minimum of 500 and a maximum of 1000 words. It
should be sufficiently specific and informative and should
make clear the novelty the author wishes to describe,
referring to results and practical applications. Based on
this information the Board of Administration will make
decision on the acceptance of the paper and on whether
it will be given orally in a paper session, or as a poster
presented at the stand.
The submissions must arrive at the Central Bureau
via the Online Abstract Submission System of the Session
Website by: 15 September 2010.
Authors will be informed on the decision of the Board
of Administration by 30 November 2010.
The authors selected (or one of their co-authors) have to register for the conference to present their paper. After the acceptance of their papers authors will be provided with information indicating format and deadlines of the written contributions for inclusion in the Proceedings.
CIE PUBLICATIONS
Reappraisal of Colour Matching and Grassmann’s LawsCIE 185:2009
The laws of additivity and proportionality of colour matches, Grassmann’s laws, are the basis of all colour theory, but are not axiomatically true. The extent of departure of human vision from Grassmann’s laws has been periodically examined. One exploration, by W. A. Thornton, found considerable failure of transformability of primaries - a symptom of Grassmann additivity failure. In the 14 years since Thornton’s finding, several groups
Vol. X No. I 11
12 Light Newsletter
have formed to replicate and understand Thornton’s results and the limitations of Grassmann’s laws. CIE TC 1-56 is the latest of these. During the ten years of this committee’s existence, statistical simulations indicated that replicate matches by the same observer (not present in Thornton’s data) are required to suppress random errors, and accordingly three laboratories generated intra-observer matching results in three different luminance domains. Two of the studies, respectively conducted at 300 cd•m-2 and 30 cd•m-2, confirm Grassmann additivity, but the third study shows failure of additivity at 3 cd•m-2. In addition, Maxwell and maximum-saturation colour matches have long been known to be inconsistent even at high luminance levels and with intra-observer match replication to suppress noise. A practical consequence of the failure of additivity could be problems observed in crossmedia colour matching, although cross-media studies also have other well known sources of imprecision when the colour-matching is asymmetric. Some suggestions are made for a covering theory of Grassmann’s laws that might accommodate both Maxwell and maximum-saturation match data while still maintaining consistency with high-luminance success in experiments such as reported recently. Further investigations are indicated for a successor to TC 1-56.
The publication is written in English, with a short
summary in French and German. It consists of 20 pages with 3 figures, and is readily available via the website of the Central Bureau of the CIE (www.cie.co.at).
The price of this publication is EUR 38,-- (Members of the National Committees of the CIE get 50% discount).
——
ISO11664-5:2009(E) / CIE S 014-5/E:2009Colorimetry - Part 5: CIE 1976 L*u*v* Colour Space and u’, v’ Uniform Chromaticity Scale Diagram
This joint ISO/CIE Standard (replacing CIE S 014-5/E:2009) specifies the method of calculating the coordinates of the CIE 1976 L*u*v* colour space including correlates of lightness, chroma, saturation and hue. It includes two methods for calculating Euclidean distances in this space to represent the relative perceived magnitude of colour differences. It also specifies the method of calculating the coordinates of the u’,v’ uniform chromaticity scale diagram.
The Standard is applicable to tristimulus values calculated using the colourmatching functions of the CIE 1931 standard colorimetric system or the CIE 1964 standard colorimetric system. The Standard may be used for the specification of colour stimuli perceived as belonging to a reflecting or transmitting object, where a
Continued on page 18
Vol. X No. I 13
14 Light Newsletter
Smart Network Keeps Costs on Track at Delhi Metro HeadquartersArun Moorthy
The Delhi Metro Rail Corporation is tasked with designing, building, and managing a state-of-the-art mass-transit system in New Delhi. This multiphase project, which began in 1995, has gained widespread recognition for its environmentally sensitive design. It was also the first metro system in the world to receive ISO 14001 certification for its environmentally friendly construction.
The DMRC’s new headquarters, a nine-story building called Metro Bhawan, further reflects the company’s commitment to sustainable development — a commitment that’s shown through both the construction of the building and the systems that support it. For example, the building’s central dome provides natural light, and carefully positioned windows throughout the building maximize natural light, as well.
In addition, the DMRC installed an energy-efficient lighting control and management system to reduce the building’s carbon footprint and manage operations efficiently. Delhi Metro partnered with BEL Lighting and i-Logicon, to design and install the lighting management system. The result is a sophisticated network based on Echelon’s LonWorks technology, an open, extensible architecture that lets control devices from multiple manufacturers interact with each other.
The new system integrates a Digital Addressable Lighting Interface (DALI) network of motion detectors and dimmable luminaries with a control network. The network includes 800 motion detectors, 5,600 dimmable luminaires, 100 gateways, and two routers. Each floor is divided into sections, with the motion detectors and luminaires in each controlled by a gateway. The lower and upper floors are divided into two groups, each governed
TECHNICAL PAPER
by a router. The routers are connected to a centralized control unit, creating a single interface for controlling the lights on all nine floors.
Running on Time
The system offers a number of programmable operating modes that maximize lighting efficiency. About an hour before employees begin to arrive, for example, the lights turn on to 25-percent brightness. Throughout the day, motion detectors turn lights on and off in response to employee activity, and dimmable luminaires adjust their brightness according to the amount of daylight available. At the close of business, the lights begin to turn off automatically, phasing from 75-percent brightness to completely off over the course of an hour.
A special mode is used when security guards are on duty. As guards move around the building, the motion detectors activate selected lights at only 25-percent
Vol. X No. I 15
16 Light Newsletter
brightness, providing just enough light to guide the way without wasting energy.
The maintenance crew controls the modes through a Web interface, which also lets them monitor performance, and, if necessary, make manual overrides. The interface provides a graphical view of all the floors, marked with the location of all the lighting components, including the manual switches.
Significant Savings
The new system offers significant savings over similar buildings that don’t use an automatic network. It also makes upkeep easier, as maintenance crews can quickly identify and fix any problems. It is believed that the new building is saving energy to the tune of 30 to 40 percent, and maintenance costs are down by 20 percent.
In addition, the network itself provided a cost advantage, since it was faster and less expensive to install than alternative control systems.
Arun MoothyCountry Head-SAARC Operations
Echelon Asia Pacific Limited-India Office308 “Arcadia”’ Hiranandani Estate
Ghodbunder Road, Thane West, Mumbai 400607Telephone: +91 22 40128542
Lighting Options for the Common Man
An attempt is made in this article to provide some basic ideas to the ‘Common Man’ on the alternatives available to creatively design effective lighting solutions for both residences and small working areas.
The General Lighting Service (GLS) bulb, which has been a workhorse of domestic lighting over 130 years, is now being phased out by many countries. It is being largely replaced by the Compact Fluorescent Lamp (CFL). Prior to the arrival of CFLs, GLS was being replaced by the Fluorescent Tube Light (FTL). If one follows the ratio of GLS to FTL lamps produced in India, it changed from 10:1 in eighties to 3:1 in recent years; indicating a much faster growth in FTL production. Taking into account the facts that the life of FTLs is five times longer and it gives 3.5 times more light than an average GLS bulb, the total lumens produced by FTL is about five times more than by the GLS! The FTL has indeed become the most dominant light source in India and also globally. It should be noted that the efficacy (lumens per watt) of FTLs and CFLs are about the same and on a per thousand lumen output basis, a 40W FTL is far cheaper than a CFL.
If one follows the growth of CFL usage it has really gained momentum in India in the past 8 years, growing around 30 percent year after year. In the zeal to promote CFL it has been dubbed the last word in energy conservation. The common man started replacing both GLS bulbs and FTLs by CFLs. While replacing GLS bulbs does lead to significant energy conservation, replacing FTLs by CFLs resulted in extra expense and lower levels of illumination without significant energy conservation. One should also take into account the fact that lighting levels in India at home and also at the work place are in general very poor; perhaps just 20 percent of those specified in developed countries. Needless to say that energy conservation in India at the expense of lighting level makes no sense at all.
Following the global trend of rating electric appliances by their energy efficacy, the Bureau of Energy Efficiency (BEE) of the Government of India has fortunately initiated a STAR rating system for FTLs. A regular 40W FTL with 60 lumens per watt has a one STAR rating and 36W FTL (T8) with 90 lumens per watt has 4 STAR rating. Both could be mounted on the same fitting (Patti). Although the four STAR rated FTL costs a little more, when the extra light one gets for thousands of hours is taken into account, the extra cost is well worth it. In fact the four star rated FTL is the best value for money for lighting in any sector — domestic, industrial or commercial.
Good quality electronic ballasts are now becoming available at affordable prices. For a 36W FTL, it reduces ballast power consumption to 2W from 14 W for a typical
Vol. IX No. III 17
18 Light Newsletter
FORTHCOMING EVENTS
Light+Building 2010April 11-16, 2010, Frankfurt, Germany
The leading international trade fair for architecture and technology, Light + Building 2010 is scheduled from April 11 to 16, 2010. It will be an innovation platform for energy efficient products and systems.
The biennial trade fair will see all market leaders from the fields of lighting, electrical engineering and building automation taking part. As many as 2,200 exhibitors are expected to display their latest products, innovations and trends with contemporary style at the Frankfurt Fair and Exhibition Centre. The main objective behind the event is to optimize the cross-over between different trades in order to attain good communication, which will maximize efficiency, cost-effectiveness and ecological awareness in future products and constructions.
Design Plus is the name of the new competition that will be featured under this event. This contest will be judged by a panel of experts, who will be marking them for the use of cutting-edge technology. The Light + Building 2010 will also have an Outlook Lounge that will act as a meeting place for architects, designers and engineers from across the globe to discuss innovative concepts currently in use.
For futher information contact:
Messe Frankfurt Exhibition GmbHLudwig-Erhard-Anlage 1
60327 Frankfurt a. M.Telefon +49 69 75 75 - 0
Telefax +49 69 75 75 - 67 50www.light-building.messefrankfurt.com
——
Lightfair International 2010May 10-14, 2010, Las Vegas
The 2010 LFI Conference program offers seven (7) diverse educational tracks with 68 unique courses, totaling more than 200 accredited hours for AIA, ASID/IIDA, IES and IFMA, upon individual association approval. Highlights include:
The launch of the Building Integration track, aligning with the newest pavilion on the trade show floor, to create a comprehensive offering dedicated to educating attendees on energy efficiencies, optimising the overall building performance and analysis and comparisons of improving efficiencies.
In the Lightfair Institute, a complete 3-level lighting series will be introduced with the addition of a new 2-day Advanced Lighting course to enhance the existing Basic
magnetic ballast. The electronic ballast also reduces the voltage needed to start and maintain FTLs; a very important feature in India where fluctuations in supply voltage are rampant.
Based on the above discussion the recommended practice for good lighting and energy conservation could be summed up in the following thumb rules: 1. Replace GLS bulbs by CFLs, 2. Do not replace FTLs by CFLs but replace regular FTLs by four STAR rated FTLs, 3. Use electronic ballasts instead of the magnetic ones.
Having selected the right lighting hardware, let us look into other important factors of good lighting practice, which include:
1. Correct Lighting Levels: Poor lighting levels lead to eye strain and early fatigue. Lighter wall colours also help improve lighting levels.
2. Avoid Glare: Location of lamps should be such that one does directly see a bare lamp. Proper mounting height and use of a shade can help.
3. Select Warm or Cool Lamps: Both FTL and CFL are available in warm as well as in cool white colours. Select the one which suits you.
4. Be Creative: Lighting can change ambiance. Uniform lighting gets boring; try creating light/ shade effect, indirect lighting and explore.
Lighting design is a combination of art and science and gives ample opportunity for creativity. Trying different lighting designs does not cost much; it can be fun and also rewarding.
Dr. Avinash D. [email protected]
three-dimensional space more uniform than tristimulus space is required. This includes self-luminous displays, like cathode ray tubes, if they are being used to simulate reflecting or transmitting objects and if the stimuli are appropriately normalized. The Standard, as a whole, does not apply to colour stimuli perceived as belonging to an area that appears to be emitting light as a primary light source, or that appears to be specularly reflecting such light. Only the u’,v’ chromaticity diagram defined in Section 4.1 and the correlates of hue and saturation defined in Section 4.3 apply to such colour stimuli.
This Standard has been approved by CIE and by ISO. It may be obtained via the website of the CIE Central Bureau (www.cie.co.at).
Price of this Standard: EUR 38,- (Members of the National Committees of the CIE get 50% discount).
——Continued from page 12
Vol. IX No. III 19
Lighting and Intermediate Lighting 2-day immersion courses.
Courses on Daylighting management tools, metrics, harvesting and control systems within the Daylighting Institute.
A wide variety of workshops and seminars on LED and LEED.
Conference topics will cover Controls for Daylighting, Daylight Management in Commercial Buildings, Simulation Tools, Controls, Codes, BIM/IPD, Colour and Design and several more relevant lighting subjects.
2010 Participants can choose from:
11 Daylighting Institute WorkshopsOne two-day Daylighting Fundamentals course16 LIGHTFAIR Institute Workshops, including a tourThree one-day Lightfair Institute coursesFive two-day Lightfair Institute courses 32 seminars
The Daylighting Institute and the Lightfair Institute take place May 10-11, 2010 and the seminars occur May 12-14.
For futher information contact:
Lightfair International 240 Peachtree Street, NW
Suite 2200Atlanta, GA [email protected]
and artificial light to bring an optimistic match between the two for energy efficiency.
The work was initiated by modeling the direct solar radiation on any plane in conjunction with the sun path for any location and validating this with experimental results. The developed radiation model was subsequently applied to a window system to evaluate its performance for both optical and thermal characteristics. Various sky conditions such as overcast, partly clear etc were adopted in the developed model.
A daylight sensor based automatic dimming controller system was developed and installed in a model classroom to study the performance of the daylight integrated artificial lighting system for its annual performance evaluation. Measured Indian daylight database was employed to validate the theoretical model with the experimental results obtained from existing full scale room as well as through model study. Various tools like MATLAB Simulink, lighting design software were used for analyzing performance of the daylight sensor based artificial lighting system. The compiled experimental data were statistically treated to obtain various deviations from predicted results.
Optical performance of glazing materials was evaluated through spectrophotometry for UV-VIS-NIR regions. A transient heat transfer simulation model was developed to evaluate the thermal characteristics of glazing materials under diurnal changes in radiation pattern. The developed theoretical results were compared with experimental results obtained from a full scale test facility. This was subsequently validated through infrared image processing. This study led to the quantification of the dynamic heat flow nature of such systems. The U-factor as well as SHGC (Solar Heat Gain Coefficient) was derived from experimental results.
The outcome of the work was reported in the following publications co-authored by Mr. Sujoy Pal, Dr. Biswanath Roy and Dr. Subhasis Neogi.
International publications:
i) “Heat Transfer Modeling on Windows and Glazing
under the Exposure of Solar Radiation”, Energy & Buildings, Vol.41, No.6, June 2009, pp.654-661.
ii) “Simulation and Performance Analysis of Daylight
Linked Artificial Lighting System”, Light & Engineering, Vol.17, No.2, 2009, pp.34-42.
National publications:
i) “Estimation of Energy Saving by Daylight
Integrated Artificial Lighting System using Indian
Daylight Data”, Journal of The Institution of Engineers (India) -EL, Vol.89, September 2008, pp.16-21.
ii) “Illuminance Prediction with Indian Daylight Data
by Scale Model Study”, Journal of the Solar
ISLE Member Awarded Ph.D. (Engg.)
Mr. Sujoy Pal, Lecturer in the Department of Electrical Engineering at The Calcutta Technical School, Kolkata and a Life Member of ISLE (M.1110) was awarded a Ph.D. (Engg.) degree by Jadavpur University on 20th May, 2009 for his Research Thesis entitled “A Novel Approach for Minimization of Energy Use in a Building System with Daylighting and Thermal Comfort Model”. The work was carried out under joint guidance of Dr. Subhasis Neogi, Reader, School of Energy Studies, Jadavpur University, and FISLE and Dr. Biswanath Roy, Reader, Electrical Engineering Department, Jadavpur University, and MISLE.
The work involved an approach for developing an energy efficient building system incorporating daylight
NEWS ABOUT MEMBERS
20 Light Newsletter
Energy Society of India, Vol.18, No.2, July-December 2008, pp.41-49.
Conference papers:
i) “Daylight Illuminance Modeling under Indian Sky”, Proceedings of 3rd International Conference on ‘Solar Radiation and Daylighting’, Solaris-2007, February 7-9, Vol-I, 2007, pp.130-139.
ii) “Simulation Based Analysis of Daylight
Responsive Lighting Control System”, Proceedings of International Conference on Lighting Technology, Lii2008, February 22-25, 2008, pp.104-107.
OTHER NEWS
Seminar on Energy Efficient Lighting Design
Electric Lamp and Component Manufacturers’ Association of India (ELCOMA) organised a Seminar on Energy Efficient Lighting Designs which was held at Mumbai (20-21 October 2009) and New Delhi (23-24 October 2009). The Seminar was co-sponsored by Council of Architecture, Bureau of Energy Efficiency, Indian Society of Lighting Engineers, and was supported by Philips Electronics, Bajaj Electricals, Crompton Greaves, Surya Roshni, and Atco Tridonic. The seminar was attended by Architects, Designers, Specifiers, CPWD, PWD, Municipalities, Airport Authority, Railways, Army etc. The presentations were made by experts from the Lighting industry, architects and institutes.
The Seminar in Mumbai was inaugurated by Mr. Shekhar Bajaj, CMD, Bajaj Electricals in the presence of Mr. Conrad Gonsalves of IIID, Pune and other dignitaries. In Delhi, Mr. Sunil Sikka, President ELCOMA inaugurated the Seminar in presence of Mr. G. B. Pradhan, Additional Secretary, Ministry of Power, Mr. V. S. Sohoni, President, Council of Architecture, Mr. Saurabh Kumar, Secretary, BEE, Mr. J. P. Agarwal, CMD, Surya Roshni and Mr. G. B. Pandian of BEE.
The presentations made at the seminars in Mumbai and New Delhi can be viewed at the ELCOMA website www.elcomaindia.com
——
First Convocation at MITLRA, PuneSeptember 5, 2009
Hailing the initiative and efforts of MAEER’s MIT Lighting Research Academy, Pune in starting the first ever unique Techno-Managerial program for the development of Lighting Professionals, Shri R. Ramkrishnan, Executive Director of Bajaj Electricals Ltd., Mumbai presented
the Certificates to the successful students of the first batch. He was present at the MIT, Pune Campus on 5th September as Chief Guest for the first Convocation of the Post Graduate Program in Lighting Technology & Management. He expressed his happiness on learning that all students of first batch are placed successfully not only in the country, but also overseas. Wishing them all the success in life he mentioned that now that the subject of Lighting is getting momentum as a result of the global energy crisis and also due to pollution, there is a need for a large number of lighting professionals.
Dr. Prakash Barjatia Director – MITLRA
LETTERS TO THE EDITOR
The observations of Mr. Howard Brandston on the
proposed banning of the GLS lamps has evoked several
responses. Some were published in the last issue, others
are given below. The Editor wishes to state that the
views published are the personal views of the individuals
concerned and DO NOT represent the views of the Indian
Society of Lighting Engineers.
Editor
——
Dear Sir,
This has reference to the correspondence related to banning of Incandescent lamps and Mr. Brandston’s point of view on the subject and other related matters. In my opinion every lamp has a place under the sun. It has it’s own advantages, disadvantages and niches of use. The need of the industry and research organisations for their growth at a given point of time appear to decide suitability of different lamps for the users rather than their intrinsic utility value.
Incandescent lamps, T12/T8 Halophosphate FTLs, HPSV/Metal Halide and CFLs seem to have been led to the path of death to sustain the T5 and LEDs thru weapons of argument and slick presentations. In the case of the first 3, Energy Efficiency and short life are the weapons while the ghost of mercury is the weapon in the remaining. The performance of T5 and LEDs is yet to be proved under onerous conditions normally encountered in what will be the biggest consumers, viz, Developing and emerging economies.
Where the knowledgeable but common users in the Developed countries are given the option they have generally favored the proven old technologies. In a recent report from National Lighting Bureau of USA, made known to us by Anool Mahidharia, it has been mentioned that 75% of the FTL market in USA is still taken by T12! Similar data may not be available publicly for LEDs because the performance standards for widespread use
Vol. X No. I 21
are yet to be established. It may take time simply because they are to last 50,000 hours. LEDs are attractive to Architects and IDs because of the colour contrast and control it provides, but not much attention is given to the life and cost of installment. I understand that in US T5 is not as acceptable as in Europe primarily because USA still operates on FPS modular ceilings. Perhaps this is the reason for targeting our large and ill informed market by projecting T5 and LEDs as the symbols of being the leading edge. Never mind their sensitivity to our power conditions and inability to give expected performance. Of course more lamp failures mean increased frequency of lamp replacement!!
On the issue of Energy Savings nobody seems to have looked at the energy consumed by Media, Visual and Print. The wastage of printed material (which involves lighting!) and energy consumption in SSTV lighting in myriads of TV channels is not addressed by any agency. Even the ‘Green’ TV channel is no exception.
C. Sthalekar [email protected]
——
Dear Sir,
SUB: About CFL - Views for Publication in ISLE Newsletter
1.0 From Day One Lighting Manufacturing Companies have promoted CFL Lamp as energy saving lamps… Manufacturers hardly advertised that CFL lamps are energy savings w.r.t. GLS Lamps and not tube lights. The campaign by companies was so powerful that it brainwashed not only common man but the professionals who started replacing Tube light with CFL lamps.
2.0 From day one I used to say that these lower wattage CFL Lamps are more suitable for passages and toilets etc. and not for functional areas like offices etc.
3.0 The capital cost of CFL lamps are higher than tube lights to achieve same lighting parameters and in turn the higher running cost. When professional used CFL lamp Luminaires for working areas it was in general without PF improvement capacitors.
4.0 In my commercial projects I have proved to the client that CDM-TC lamps are better than CFL lamps in terms of energy savings and running cost for same quantitative lighting parameter. The qualitative parameters are much better with CDM-TC lamps.
5.0 Then came the lower wattage lamps with electronics to be used in same holder as that of GLS lamps. Unfortunately electronics was poor - in terms of providing constant voltage, eliminating Harmonics and improved P. Further many imported CFL lamps by traders was with poor powder quality. All these affected the life of the lamps as well as the electrical systems.
6.0 Therefore it was essential to review the Quality of CFL Lamps by standardisation Committee at national level. The debate was Higher life or higher PF. I was neither present in the meetings nor had the opportunity to read the draft specifications ( ISLE should make the draft public for the comments by Members), but I am sure that with debate among ELCOMA, BIS, BEE, it must have been finalised that CFL with better PF is better option for the country.
7.0 Now that White LED technology is improving and cost is going down, it is matter of time that LED may take over low wattage CFL lamps.
Thanks & regardsAnil Valia
——
Dear Valia,
With due respect to you, I do not entirely agree with the views expressed in your letter.
Under point 1 you say Manufacturers hardly advertised that CFL lamps are energy savings w.r.t GLS Lamps and not tube lights. This is not true. Almost the entire (bulk of) the CFL advertising campaign theme by the Industry has been highlighting the savings w.r.t GLS Lamps. “Same Socket, Same Light, More Life and Less Energy”. In fact all (most) of the CFL packs carried the equivalent GLS Wattage it can replace. Yes, it is also true that knowledge percolation was/is not sufficient leading to instances of Linear Fluorescent Lamps being replaced with CFLS.
In responses to point 2, I would like to say the following. What about Down Lighters in Office Corridors, Conference Rooms, Reception Areas? – it is very much layout dependent. Higher wattage CFLs like the 36W are extensively used for Lighting of Functional areas in Offices – from the Aesthetics and Efficiency angle.
To point 3 my response is that lighting parameters cannot always be the only consideration – Aesthetics and Ambience also play an important role. Non Retrofit CFL Luminaires with Electronic Drivers with HPF circuits have been available for a while now. The issue is again Choice and Awareness
In point 5 your reference to poor electronics is not applicable to all brands.
I will be happy to have a further exchange of views with you on these issues.
RegardsS. Venkataramani
22 Light Newsletter
WEB WATCH
Chinese Designer Zheng JianWei Wins IES Illumination Award of Excellence
Mr. Zheng JianWei was presented with the Paul Waterbury Award for Outdoor Lighting Design, Award of Excellence, at the Illuminating Engineering Society Annual Conference presentation of the 2009 IES Illumination Awards. Mr. Zheng addressed the audience of his lighting professional peers in the ceremony and became the first lighting designer from Mainland China to receive such a coveted award. This year there were over 500 submitted entries.
The Illuminating Engineering Society of North America issues the Paul Waterbury Award for Outdoor Lighting Design, Award of Excellence, each year to the best project worldwide, as voted for by a committee of lighting professionals. The project that the award was given for was the 7th Courtyard of Beijing Olympic Green Central District.
Mr. Zheng also won three Awards of Merit for three separate projects, the Beijing LAN Club interior lighting, the National Stadium (Bird’s Nest) facade lighting, and the Beijing Han MeiLin Museum interior and outdoor lighting.
LINKS : http://www.ies.org/programs/ia.cfm
http://www.ies.org/PDF/Awards/ia/2009%20Recipients.pdf
http://www.prnewswire.com/news-releases/chinese-designer-zheng-jianwei-wins-ies-illumination-
award-of-excellence-78128487.html
——
UL 8750 safety standard for LED lighting is published
After nearly three years in development, the standard covering product safety of LED lighting equipment has now been published.
Underwriters Laboratories (UL), an independent product safety certification organization based in Northbrook, Illinois, has published ANSI/UL 8750 “Safety Standard for Light Emitting Diode (LED) Equipment for Use in Lighting Products.”
The first-edition standard creates a global platform of safety requirements for LED lighting equipment as well as the entire supply chain of components used in lighting products employing LED technology.
LINK : http://www.ledsmagazine.com/news/6/11/
34?cmpid=EnlLEDsDecember22009
Paper Thin Batteries to Power OLEDs
Organic LEDs hold large promise for efficient, thin and flexible lighting elements (as well as razor-thin TVs), but low-tech power sources continue to constrain more creative uses of the lights. After all, what good is a shirt of woven LEDs if you need to lug around 10 C batteries to power it? Thankfully, GE is teaming up with the makers of printable, paper-thin battery to create self-powered OLEDs with the battery integrated into the thin light element itself.
The partnership binds GE with Power Paper, an Israeli company who’s ink-based batteries could light OLEDs in nearly any setting. This collaboration will run for a year, and aims to both create the first generation of this technology, and get started on second generation applications.
LINK :
http://www.popsci.com/gadgets/article/2009-12/self-powered-oleds-utilize-printed-batteries
http://www.popsci.com/science/article/2009-12/making-powerful-lightweight-batteries-nothing-
nanotube-ink-and-paper
——
World’s Largest LED Architecture Project
Designed by Asymptote Architecture and with a lighting arrangement done by Arup Lighting, this project is located in Abu Dhabi and is called “The Yas Hotel“. It is momentarily the world’s largest LED building and it was opened on November 3, 2009 in the same time with the Formula 1 Grand Prix. The hotel is controlled through remote device management (RDM) protocol and it has no less than 5000 RGBW LED items. It also features functions such as color-changing sequences and other impressive lighting effects. Still, one has to think how much energy this type of building consumes, in spite of its absorbing and almost intimidating design.
A Photo Gallery here :
http://freshome.com/2009/12/06/the-largest-led-architecture-project-in-the-world-yas-hotel-in-abu-
dhabi/
http://www.asymptote.net/http://www.arup.com/
——
Light Squeezed Even Tighter
Scientists have proved that light can be squeezed into much tighter spaces than previously thought possible, a breakthrough that could change the world’s thinking on light’s capabilities.
The researchers in the University of Adelaide’s new Institute for Photonics & Advanced Sensing (IPAS) made
Vol. X No. I 23
the discovery using optical fibers. These fibers usually act as pipes for light, with the light bouncing around inside the pipe. As the size of the fiber shrinks, the light becomes more and more confined, too, until the ultimate limit is reached and light cannot be squeezed any smaller.
This ultimate point occurs when the strand of glass is just a few hundred nanometers in diameter, about one-thousandth the size of a human hair. If you go smaller than this, light begins to spread out again.
The Adelaide researchers, led by IPAS research fellow Dr. Shahraam Afshar, discovered they now have the potential to push beyond that limit by at least a factor of two.
LINK :
http://www.photonics.com/Content/ReadArticle.aspx?ArticleID=40373&refer=bio&utm_source=bio_
2009_11_17&utm_medium=email&utm_campaign=bio
——
Safe Bottle Lamp Project
This Saturday, BBC World News will broadcasts the final programme of its popular World Challenge 09 series, announcing the ‘safe bottle lamp project’ as the winner. See an earlier mail sent on this subject (below).
The Sri Lankan initiative, pioneered by burns surgeon Dr Wijaya Godakumbura, produces inexpensive lamps from recycled glass as a solution to burn risks in developing countries.
Burns caused by makeshift kerosene lamps are a common problem in parts of Sri Lanka, where a fifth of the population has no access to electricity. These accidents often cause severe pain, scarring and sometimes even death.
To prevent these injuries Sri Lankan burns surgeon Dr Godakumbura designed a simple lamp using recycled glass, which can be easily mass produced at a low cost.
‘’Over the last five years, the unique projects featured in World Challenge have continued to amaze and inspire BBC World News viewers,” says Paul Gibbs, head of programmes, BBC World News.”The competition’s ongoing success and popularity illustrates an unwavering interest globally in the field of sustainable development.’’
LINK : http://www.domain-b.com/brand_dossier/
media/20091207_world_challenge.htmlhttp://www.safebottlelamp.org/index.html
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Mesh Based Lighting System
Commercial office buildings are one of the main culprits of the current climate crisis. They consume large amounts of electricity and release excessive carbon emissions into
the atmosphere. Adura Technologies has developed a mesh-based lighting system that is reducing costs and consumption inside buildings. The technology consists of wireless radios that plug into florescent light fixtures giving employees more control over their personal lighting space. Adura has also created a dual motion sensing-personal control system that is being used at UC Berkeley that allows students to break the hard-wired connection and control their lighting from their desktop PCs.
LINK : http://www.smartplanet.com/technology/video/a-
bright-idea-for-wasteful-office-lighting/367125/
http://www.aduratech.com/
——
LRC method reduces energy consumption of street lighting
The LRC says that replacing traditional, yellowish high-pressure sodium lights with cool-white light sources can reduce the amount of electric power used for lighting while maintaining or even improving visibility in nighttime conditions.
Researchers at the Lighting Research Center (LRC), Troy, NY, have demonstrated in multiple field tests that, by using what they describe as a Unified System of Photometry, a street lighting system can be designed to reduce energy use while maintaining or improving perceptions of visibility, safety, and security.
The Unified System of Photometry provides an objective method for optimizing the spectrum of a light source, while minimizing energy use and at the same time maintaining good visibility. The system was designed to characterize light at any level, including the mesopic level where both rods and cones operate.
“In nighttime conditions, the human eye is more sensitive to short-wavelength light, which produces ‘cool’ tones like blue or green, as opposed to long-wavelength light, which produces ‘warm’ tones like yellow and red,” said LRC Director of Energy Programs Peter Morante.
“By replacing traditional, yellowish high-pressure sodium (HPS) lights with ‘cool’ white light sources, such as induction, fluorescent, ceramic metal halide, or LEDs, we can actually reduce the amount of electric power used for lighting while maintaining or even improving visibility in nighttime conditions.”
The eye has two types of visual receptors in the retina, cones and rods. The current system of photometry—the measurement of visible light in terms of human perception for certain activities like reading and seeing fine details—is based on how some cones respond to different wavelengths.
24 Light Newsletter
Cones are the dominant visual receptor under photopic (daylight) lighting conditions. Rods function primarily under very dim conditions.
LINK : http://www.lrc.rpi.edu/researchAreas/pdf/
GrotonFinalReport.pdf
http://www.ledsmagazine.com/news/6/11/8?cmpid=EnlLEDsNovember112009
Life before artificial light
What was life like when candles and oil lamps were all we had to light our cities with? Dangerous, definitely, but never dull, says Jon Henley
Nice essay about the origins of Gas Lighting / Street Lighting at this link :
http://www.guardian.co.uk/lifeandstyle/2009/oct/31/life-before-artificial-light
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Illuminating Reuse: 15 Recycled Lights and Lamps
Egg cartons, Legos, ballpoint pens, blenders and plastic spoons: these are just a few of the items that have been transformed into awesome light fixtures by creative DIYers. Why buy new lighting or lamps when you could have a stunning chandelier or lamp that puts junk to good use? These 15 examples of brilliant eco-illumination show just how stylish and fun recycled materials can be.
LINK : http://webecoist.com/2009/03/08/reuse-recycled-
lights-lamps-designs/
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Highway service area in Germany receives LED Lighting
Esslingen/Berlin -- Since some weeks travelers on highway A24 between Berlin and Hamburg, Germany will be enlightened about one hour north of Berlin. The service area on one side of the highway is shining brilliantly whereas the one on the opposite side is showing the muddy and shadowy light drivers are used to since many years. Here a pilot project is demonstrating the highly visible difference between today and tomorrow.
Germany finally is initializing a trend in Europe. With the first highway service area equipped with brilliant modern LED lighting at the A24 in Walsleben the Federal Ministry of Traffic is setting international standards.
LED street lighting is the future technology – pleasing both treasurers and tax payers as they are remarkable lighter, clearly longer-lived and much more energy
efficient. Security also is enhanced as dark areas and long shadows belong to the past. The pilot project in Walsleben East will prove the supremacy of LED technology.
In this future oriented market with high growth potential the ministry is betting on a luminous source from Germany which is technically advanced.
LINK : http://www.ledsmagazine.com/casestudies/
20242?cmpid=EnlLEDsOctober142009
Field test results published for PV LED outdoor lighting system
An evaluation program run by the Lighting Research Center showed positive results an good acceptance for PV-powered LED-based outdoor luminaires.
The Lighting Research Center (LRC) at Rensselaer Polytechnic Institute (RPI) has released a new publication detailing field test results for photovoltaic-powered LED luminaires installed at three public, outdoor sites in the Catskill Mountains region of upstate New York.
The mission was to examine system performance, photometric performance, energy savings, and whether people accepted the photovoltaic (PV)-powered, LED outdoor lighting system.
The publication, Field Test DELTA: Post-Top Photovoltaic Pathway Luminaire, evaluated twenty-four prototype luminaires. The luminaires were installed at three sites in New York’s Sullivan County.
LINK : http://www.lrc.rpi.edu/programs/delta/publications/
publicationsDetails.asp?id=922&cat=17
http://www.lrc.rpi.edu/programs/DELTA/pdf/DELTA-Post-topPhotovoltaic.pdf
MEMBERSHIP APPLICATIONS APPROVEDBY GOVERNING BODY
New Members Admitted in October, November and December 2009
M. No. Name & Addresses Grade Centre
F (L)0659 Mr. D. Subhakar Fellow Karnataka Kripa Telecom Unit-II (Life) No. 18, Old Khata No 24/1 Konappana Agrahara Village Begur Hobli, Hosur Road Bangalore 560 100
F (L)0660 Dr. Shreesha C. Fellow Karnataka Prof. & HOD, E & E Engg. (Life) NMAMIT Nitte 574 110 (Karnataka)
F (L)0661 Mr. Udaykumar R. Yaragatti Fellow Karnataka Professor & Head (Life)
Dept. of E & E, NITK Surathkal Mangalore 575 025
Vol. X No. I 25
F (L)0662 Prof. T.N. Shanubhogue Fellow Karnataka HOD E & E Department (Life) Canara Engineering College Benjanapadavu
574 219 (Karnataka)
F (L)0663 Dr. Nagesh Prabhu Fellow Karnataka Principal (Life) Canara Engineering College Benjanapadavu Bantwal 574 219 (Karnataka)
F (L)0664 Mr. Anupom Bhattacharya Fellow Kolkata A.B. Engineers (Life) 23/1, Ganga Kanto Bhaduri Street Bally Howrah 711 201
F (L)0665 Mr. M. Revindran Fellow Karnataka CPWD (Life) Executive Engineer (E) BCEO-II, CPWD, ‘F’ Wing Ground Floor, Kendriya Sadan Bangalore 560 034
F (L)0666 Mr. K. Pradeep Prabhu Fellow Karnataka Madhav Sadan, Kirpala Road (Life) Sullia D.K Karnataka 574 239
F (L)0667 Mr. Dhirendra Timmanna Huddar Fellow Mumbai B/6, Shri Laxmi Puja (Life) Near Model English School Ramchandra Nagar, Dombivali (E) Mumbai 421 201
F (L)0668 Mr. Arvind Achyut Mule Fellow Mumbai 11, BEST Sitladevi Officers Qtrs (Life) Lt. Kotnees Marg, Mahim Mumbai 400 016
F (L)0669 Mr. T. G. Ramesh Fellow Karnataka Vignani Solutions Pvt. Ltd. (Life) # 93/A, 4th B Cross, 5th Block Koramangala Industrial Area Bangalore 560 095
M(L)1480 Mr. Sreetharan Murthy Member Karnataka Auctus Energy Solutions Pvt. Ltd. # 1034/3, 9th ‘B’ Main, 8th Cross Judicial Layout, Bangalore 560 065
M(L)1481 Ms G. Manju Nair Member Chennai 1-11-4, Arihant Majestic Towers Koyambedu Chennai 600 107
M 1482 Mr. Saptak Bhattacharya Member Mumbai Bajaj Electricals Limited E & P BU – Special Projects Prem Estate, Ist Floor, A Wing Sant Savta Cross Road No.1, Mazgaon Mumbai 400 010
M 1483 Mr. Rintu Shee Member Mumbai Bajaj Electricals Limited E & P BU – Special Projects Prem Estate, Ist Floor, A Wing Sant Savta Cross Road No.1, Mazgaon Mumbai 400 010
M 1484 Mr. Cyril S Mendonca Member Mumbai Bajaj Electricals Limited 15/17, Sant Savta Marg, Reay Road Mumbai 400 010
M 1485 Mr. Kamlesh Kumar Kaushal Member Mumbai Bajaj Electricals Limited. 15/17, Sant Savta Marg, Reay Road Mumbai 400 010
M.1486 Mr. Madhu Muralidharan Member Mumbai D-201, West View C.H.S. Sector- 2 Charkop, Kandivali (West) Mumbai 400 067
M(L)1487 Mr. Ashwin Raman Member Mumbai Reliance Retail Ltd. (Life) Reliance Corporate Park, Gate A Building 4, Wing-A, 2nd Floor Cubicle 28, Thane Belapur Road Ghansoli Navi Mumbai 400 701
M(L)1488 Mr. Jignesh Bharatkumar Khatlawala Member Mumbai H – 404, Patel Nagar (Life) MG Cross Road No 4
Kandivali (West) Mumbai 400 067
M(L)1489 Mr. Avnish Jauhari Member Mumbai H-4/04, Sec-14 (Life) Lake View, CGHS, Airoli Navi Mumbai 400 708
A (L)0990 Mr. Anshul Bains Associate Delhi Delivering Light Planning (Life) 110, L&T Appartment Sec-18-B Dwarka New Delhi 110 075
A (L)0991 Mr. Suddhasatwa Chakraborty Associate Kolkata Electrical Engg, Dept. (Life) Jadavpur University Kolkata 700 003
A (L)0992 Mr. Sanjib Kumar De Associate Kolkata P – 183, Regent Estate Kolkata 700 092
A (L)0993 Mr. Kumar Bhat Associate Mumbai Rajput CHS, B-O-2 (Life) Plot No. 15 Sector15A 410 206 A (L)0994 Mr. Dnyandeo Dattatray Patil Associate Mumbai C – 401, Soham CHS Ltd. (Life) Plot No.-58, Sector-8A, Airoli Navi Mumbai 400 708
A (L)0995 Mr. Vijay Devidasji Warudkar Associate Mumbai Flat No. 108, Summit Apartments (Life) Royal Palms Ltd., Mayurnagar Aarey Colony, Goregaon (East) Mumbai 400 052
S.0355 Mr. Arpit Agarwal Student Delhi G-62 A, Kalkaji New Delhi 110 019
S.0356 Mr. Partha Ghosh Student Kolkata Y-7, Govt. Housing, Sodpur Kolkata 700 110
S.0357 Ms Paulami Ray Student Kolkata 96 A, Karaya Road Kolkata 700 019
S.0358 Mr. Gourab Das Student Kolkata H. No.- 6, Nanna Hospital Road Near Nilloy Traders P.O. Malancha (via Hazinagar) West Bengal 743 135
S.0359 Mr. Ranjan Mondal Student Kolkata C/o Sujit Mukherjee Sova Appartment A/30/1,Baghajatin Kolkata 700 092
S.0360 Ms Deblina Sabui Student Kolkata Tinkori Banerjee Road Gondalpara, Chandannagore Hooghly West Bengal 712 137
S.0361 Mr. V. Murali Mohan Student Karnataka #806-A,Yadava Nilaya 6th Main Road, Mathikere Layout Bangalore 560 054
S.0362 D.A. Vishwanath Student Karnataka # 16, 3rd Main, Gandhigrama Srirampuram Post Bangalore 560 021
MEMBERSHIP DUES
All ISLE members are requested to clear their pending membership dues (if any) before the close of the current financial year on March 31, 2010.
26 Light Newsletter
Vol. X No. I 27
28 Light Newsletter
