Special Edition For BC270H COB
Yuji LEDCompany & Product Introduction
Version 1.0May 2016
Overview
Future Plan
Company Introduction ∘ Basic Introduction ∘ Yuji LED Distribution
General Product Introduction - VTC / BC Series ∘ Basic Comparison ∘ Spectrum Comparison ∘ Available Emitter Products ∘ Recommended products for Cinematography Lighting
BC270H Introduction ∘ Material - / Phosphor / Baseplate ∘ Advancement
Value-added Service For BC270H
Typical Test Reports - Color Quality Tests ∘ CRI / Extended CRI ∘ CQS ∘ TLCI ∘ TM-30 -15 ∘ Spectrum
Typical Test Reports - Color Consistency & Aging Tests ∘ Spectrum Shift ∘ Chromaticity Coordinate Shift ∘ Luminous Flux Maintenance
Contact
Company IntroductionBasic Introduction
Established
2005 - Yuji Group
2009 - Yuji LED
Main Business
LED phosphor
LED emitter
Chemistry
Employees
200
Website
www.yujiintl.com
Company IntroductionYuji LED Distribution
LED BusinessHeadquarter - BeijingUS Office - CaliforniaJapan Office - Tokyo
LED PhosphorR&D - BeijingFactory - Xi’an
LED ProductR&D - BeijingFactory - Beijing
Product Introduction - VTC / BC Series Basic Comparison
BC
VTC
• 460nm chip + R/G Phosphor• CRI 95 (Ra), R9 80+, complete spectrum• Available in 2700K – 6500K, wider range can be customized• SDCM ≤ 3-step MacAdam Ellipse
• 405nm chip + R/G/B Phosphor • CRI 98 (Ra), R9 90+, truly full spectrum• Available in 2700K – 6500K, wider range can be customized• SDCM ≤ 3-step MacAdam Ellipse
Product Introduction - VTC / BC Series Spectrum Comparison
BC
VTC
Tungsten (2700K)
Tungsten (2700K)
Daylight (6500K)
Daylight (6500K)
Product Introduction - VTC / BC Series Available Emitter Products
VTC -
0.2WSMD
0.4WSMD
1WSMD
(Developing)-
9WCOB
(Developing)
50WCOB
(Pending)- -
BC
0.06WF5 Lamp
0.2WSMD
0.5WSMD
1WSMD
2-3WSMD
(Pending)
9WCOB
50-100WCOB
100-300WCOB
500WCOB
Other
RGB RGBW
- - - - - - -
Product Introduction - VTC / BC Series Recommended products for Cinematography Lighting
Mid-power SMD
High-power SMDHigh-
power COB
SMD PCB
(Recommended)
Yuji Emitter Client LED PCB Client LED Soft Light
Client LED PCB Client LED Fresnel Light
Client LED Soft / Fresnel Light
Yuji Emitter
Yuji Emitter / Yuji LED PCB
BC270H IntroductionMaterial – Phosphor
Source: Yuji Phosphor
Global Patent Protection
BC270H IntroductionMaterial – Baseplate
Material: AIN
Thermal Conductivity: 170W / (m·K)
Size: 27*27mm
BC270H IntroductionAdvancement
• Highest CRI as 95 in industry for high power COB
• Highest power density in industry with 19mm emission diameter
• Excellent heat treatment capacity with thermal resistance < 0.04
• Excellent capability of controlling color temperature tolerance < +/- 150K, both for 3200K and 5600K
Value-added Service For BC270H
• Factory inspection report goes with every piece of BC270H, including all photoelectric parameters, serial number which is unique for each product. All information is retrospective by any time.
• Provide heat sink or thermal dissipation suggestion.
• Available for customizing special color temperatures and spectrums.
Typical Test ReportsColor Quality Tests
○CRI / Extended CRI○CQS○TLCI○TM-30-15○Spectrum
Typical Test ReportsColor Quality Tests
˃ CRI / Extended CRI○CQS○TLCI○TM-30-15○Spectrum
Typical Test Reports - CRI / Extended CRIColor Quality Tests
Important Parameters Explanation Value
CRI Ra Average R1-R8, full score = 100 95
Extended CRI Average R1-R15, full score = 100 94
R9 Saturated red, full score = 100 88
R13 Western people skin tone, full score = 100 99
R15 Asian people skin tone, full score = 100 96
R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R150
10
20
30
40
50
60
70
80
90
100
Typical Test ReportsColor Quality Tests
○CRI / Extended CRI˃ CQS
○TLCI○TM-30-15○Spectrum
Typical Test Reports - CQSColor Quality Tests
Important Parameters Explanation ValueQa RMS of Q1-Q15, full score = 100 92
Q1-Q15 More saturated colors All > 80
Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 Q11 Q12 Q13 Q14 Q150
10
20
30
40
50
60
70
80
90
100
Typical Test ReportsColor Quality Tests
○CRI / Extended CRI○CQS
˃ TLCI○TM-30-15○Spectrum
Typical Test Reports - TLCIColor Quality Tests
Important Parameters Explanation Value
TLCI overall evaluation, full score = 100 95
Green(-) / Magenta(+) shift index absolute value = 0 is the best -0.8
Correction quantity the fewer +/- , the better --
Spectrum black is the tested illuminant, blue is the reference illuminant --
Typical Test ReportsColor Quality Tests
○CRI / Extended CRI○CQS○TLCI
˃ TM-30-15○Spectrum
Typical Test Reports - TM-30-15Color Quality Tests
Typical Test Reports - TM-30-15Color Quality Tests
Typical Test Reports - TM-30-15Color Quality Tests
Typical Test Reports - TM-30-15Color Quality Tests
Typical Test Reports - TM-30-15Color Quality Tests
Typical Test ReportsColor Quality Tests
○CRI / Extended CRI○CQS○TLCI○TM-30 -15
˃ Spectrum
Typical Test Reports - SpectrumColor Quality Tests
3803873944014084154224294364434504574644714784854924995065135205275345415485555625695765835905976046116186256326396466536606676746816886957027097167237307377447517587657727790%
20%
40%
60%
80%
100%
120%
Spectrum ComparisonYuji BC270H Daylight
Wavelength (nm)
Rela
tive
Emiss
ion
Inte
nsity
Typical Test ReportsColor Consistency & Aging Tests
○Spectrum Shift
○Chromaticity Coordinate Shift
○Luminous Flux Maintenance
Typical Test ReportsColor Consistency & Aging Tests
˃ Spectrum Shift
○Chromaticity Coordinate Shift
○Luminous Flux Maintenance
Typical Test Reports - Spectrum ShiftColor Consistency & Aging Tests
380 430 480 530 580 630 680 730 7800%
20%
40%
60%
80%
100%
120%
Spectrum Comparison
Wavelength (nm)
Rela
tive
Emiss
ion
Inte
nsity
480 482 484 486 488 490 492 494 496 498 50037.5%
38.5%
39.5%
40.5%
41.5%
42.5%
43.5%
Magnify 20 Times
220W
300W
370W
450W
Spectrum Tolerance < 2%Exactly Coincident For 220W & 450W
Typical Test ReportsColor Consistency & Aging Tests
○Spectrum Shift
˃ Chromaticity Coordinate Shift
○Luminous Flux Maintenance
Typical Test Reports - Chromaticity Coordinate ShiftColor Consistency & Aging Tests
Black Body Curve
Yuji BC 5600K SDCM
0.315 0.325 0.335 0.3450.315
0.325
0.335
0.345
0.355
0.3248 0.3253 0.32580.332
0.333
0.334
0.335
Magnify 20 Times
△ 450W
370W
○ 300W
× 220W
0 Hour continuous working
64 Hours continuous working
180 Hours continuous working
All Shifts < 0.0013
Typical Test ReportsColor Consistency & Aging Tests
○Spectrum Shift
○Chromaticity Coordinate Shift
˃ Luminous Flux Maintenance
Typical Test Reports - Luminous Flux MaintenanceColor Consistency & Aging Tests
0 20 40 60 80 100 120 140 160 180 2000
5000
10000
15000
20000
25000
30000
Time (Hours)
Lum
inou
s Flu
x (lm
)
Tolerance Of Luminous Flux For All Powers < 5%
× 220W× × ×
450W
△△ △ △ 370W
○ ○ ○ ○ 300W
Future Plan
• Continue the aging test starting from 1000 hours.
• Start the development of 650W COB in 2017.
• Start the development of VTC 500W COB in 2017.
• Start the development of bicolor version in 2018.
Contact
• Daniel Han• Email: [email protected]• Tel: +86 18601065880• Skype: daniel.han-yuji• Website: www.yujiintl.com • Linkedin: cn.linkedin.com/in/ddanielhan
THANKS