The LED Revolution Norm Brown

7/26/2019 The LED Revolution Norm Brown

http://slidepdf.com/reader/full/the-led-revolution-norm-brown 1/41

THE LED REVOLUTION

Is Your Showroom

Ready ?



Solid State Lighting isthe most disruptive

technology to hit thelighting industry in

!years"""""



LED technology #ill create the same disruptiverevolution in the Lighting Industry as Digital Recording

$%& did in the $usic Industry "

&" The mar'et #ill change (rom a lamp replacement )usiness into a system replacement )usiness *resulting in a declining + conventional, lamp )usiness and a )ooming LED- module and systems

)usiness" Totally ne# players #ill enter the )usiness challenging the e.isting players o( #hich a(e# have positioned themselves #ell to emerge as success(ul (uture players "

/" It #ill (undamentally change today0s Lighting Industry #hich consists o( a (e# glo)allamp manu(acturers and thousands o( local and regional (i.ture manu(acturers "

1" LED technology #ill ena)le ne# possi)ilities (or Lighting design in e.istingapplications and open up ne# applications #here the s'y #ill )e the limit"



2ustomer says3I #ant to use LEDs4

5hat is their goal6

Saving energy6Saving $oney6

7etter Lighting6

7eing 38reen46



The history o( LED0S



19/9 - Soviet patent granted (or a 3 light

relay4

191 - $odern LED invented at

Te.as Instruments

19/ - Red LED invented - :irst mass produced 3indicator lights4

19;!0s - Used e.tensively in indicator lightsand numerical displays

- Increased light output1! <

- :irst colored LED produced



19=!0s - Tra((ic signals

199!0s - E.it signs and automotive lamps

late 199!0s - :irst )lue LED #ith vastly

increased light output

- R87 )ecomes practical

- mainly used theatrically

/!!! - High )rightness #hite produced

using R87 method and phosphor coatingmethod

/!!= - Introduction o( #ide array o(

LED lighting products



5hat is an LED6

Light EmittingDiode

2olour

5hite



>natomy o( an LED



Ho# do LED0s 5or'6

Li'e a normal diode* theLED consists o( a chip

o( semiconductingmaterial impregnated* ordoped #ith impurities tocreate a p-n ?unction"



LED 7asic 2omponents

LED chips are made o( silicone+li'e computer chips, thenmounted in a 3pac'age4 that hassome electrical leads andsometimes a heat sin'



LED0s >re Small

5hich can ma'e(or small (i.tures



2urrently $ost LED0s >re Directional

The LED chip is locatedin a little re(lective cupthat sends the light in adirection"

5hich ma'es them good

(or applications re@uiring aspot light"



2urrently $ost LED0s >re Directional

7ut not so good (or applications )ettersuited to omni directional lamps



LED Light Distri)ution

Some LEDs havedi((usion lenses tospread out thelight* or donAthave there(lective cap"



$yth B1LED0s 2reate No Heat



Light Output vs" Cunction Temperature



Heat $anagement

8etting a#ay(rom the ?unctionis critical to LED

per(ormance

Li(e

Lumen Output

The pac'age isthen attached to aheat sin' that then )ecomes a part o(either a lamp or a

luminaire"



LED (i.tures need to dissipate heat di((erently thanincandescent (i.tures"



$yth B/ LEDs last 1!!*!!! hours

+or (orever depending on #ho you as',



$yth B/ LEDs last 1!!*!!! hours

+or (orever depending on #ho you as',



$yth B&LEDs are 35hite Light Sources4



Watts _______

Efficiency: Lumens, Watts, & Efficacy

LumensF total 3light4 5attsF total po#er E((icacyF ho# much light (or the po#er

+lumens per #att* L%5,

+similar to miles per gallon,



Quantity = FootcandlesQuantity = Footcandles

:oot 2andlesF Light per s@uare (oot

on a sur(ace :ootcandles are #hat #e measure

#ith a light meter

Di((erent tas's re@uire di((erentlevels o( :ootcandles



C ol or Rendering...C olor R endering I ndex ( CRI )

How Natural And Normal

Do People And

Things Appear Under

Artificial Light?

CRI cale goes from! " # $""%

with $"" &eing the &est CRI



C ol or R endering I ndex ( CRI )

TD' ()TAL HALID) * +,#-" .D)LU/) LUCAL0/ * +, .

$""

1"

2"-"

+"

,"

3"4"

5"

$"

" LP * " .

CL)AR ()RCUR6 * $, .

LUCAL0/% HP * 55 .

C0AT)D ()RCUR6 * ," .

7LU0R)C)NT * +"8 to 15 .

C(H *2,8.

INCAND)C)NT 9 HAL0:)N *$"".

DA6LI:HT (H * 1" .

P 0 0 R ) R

; ) T T ) R

The Perfect Light ource'''

<The UN=

PerfectColor

Rendering



The Higher The Colortemperature,The “cooler” The Color

2700o

4100o Fluorescent

2200o IncandesceLucalo

Color Temperature



Common Colour Temperatures

Approx Temp. Light Source

8500K Blue Sky

6500K aylight !luorescent Lamp6000K Clear "ercury Lamp#500K Clear "etal $ali%e Lamp#000K Cool &hite !luorescent Lamp'000K $alogen Lamp( && !luorescent)500K #0 &att *ncan%escent Lamp)000K Can%le( $+ So%ium Lamp

Common Colour Temperatures



35hite4 LEDs

5hite light LEDs aregenerally made )yta'ing a )lue LEDand 3doping4 it #ith

yello# phosphors"



LEDs G 2olour Temperature

$any so called35hite4 LEDsare a pale )luecolour* !!!-!!"

!!!




Sometimes LED0s are mar'eted in a#arm colour temperature* very o(tenthis is (airly cool" &!!-J!!!

Its ?ust #armer the 3cool4

J!!! !!!




I( #hat you aree.pecting is anincandescentreplacement +/;!!-&!!!, then you may

)e disappointed "

&!!! J!!! !!!

2urrently (e#LED0s areconsistentlyavaila)le in that#arm a colourtemperature"



Illumination Levels







Cunolightinggroup"com

• Online training e"luminance



The advantages o(LED0S



• SiKe

•

E((iciency• Li(e e.pectancy

•

Dimma)le• Lo# temperatures

•

To.in (ree



The challenges o( LED0S



• 2ost

• 2olour

• Directional distri)ution

• %er(ormance

• Li(e e.pectancy o( components

• 2olour shi(t

• Inter(ace #ith controls

• Replacement parts



The )est applications o(LED0S

Documents

The LED Revolution Norm Brown