LEDs: The Move to a Digital World presented by Chad Stalker
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J. Chad Stalker III, LC
March 21, 2012
LEDs: The Move to a Digital World
Sponsored by
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March 21, 2012 2
Outline
• LEDs…– We are beyond just source efficacy (LPW)– Quality of Light starts at the device– LEDs are evolving to the Lighting applications
• Luminaires…– There are solutions for general and specialized lighting applications
• Lighting Systems…– Connectivity and Control are inherent to the solutions being
developed
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March 21, 2012 3
The Digital Continuum
• Time
• Rate of Change
• Impact of Change
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March 21, 2012 4
(fill in the blank) : A Move to a Digital World
Vacuum Tube to Transistor
Cell Phone to Smart Phone
Telephone to Cell Phone
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March 21, 2012 5
(fill in the blank) : A Move to a Digital WorldLEDs :
LEDs Luminaires Systems
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March 21, 2012 6
LEDs: A Move to a Digital World
LEDs
Efficacy vs. TraditionalSources
Quality of Light
Optimized for Lighting Applications
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March 21, 2012 7
Quality vs. Quality of Light
“Quality of Light”• IALD, ALA and IES have identified
three elements as being integral to Quality of Light…
“Quality”, Per Merriam Webster…
• peculiar and essential character; an inherent feature
• degree of excellence; superiority in kind
• a distinguishing attribute; an acquired skill
EconomicHuman
Architecture
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March 21, 2012 8
Quality of Light and LEDsPerformance Drivers
Color Spectrum& Rendering
Color in Application
Color ConsistencyBetween Sources
Color Consistencyin Beam
Color ConsistencyOver Lifetime
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March 21, 2012 9
0.35
0.4
0.45
0.35 0.4 0.45 0.5
2009
2009
Color Consistency Between Sources
0.35
0.4
0.45
0.35 0.4 0.45 0.5
2010
BBL
Standardized to ANSI
Cx
Cy
Simplifying Binning
2,700K
3,000K
2011
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March 21, 2012 10
Different Ways to Achieve Freedom From BinningPost Production Sorting Targeted Kitting Production Targeting
Production Sorting< 3 SDCM
++
+
Relative Distribution < 3 SDCM
Full ProductionDistribution > 5-7 SDCM
Full ProductionDistribution > 3 SDCM
CharacterizedPhosphor System
CharacterizedBlue Pump
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March 21, 2012 11
JND > 3 SDCMaka “Just Noticeably Different”
• If we stay within 3 MacAdam ellipses, the majority of the people will not see a difference
• CDM: (source; leading CDM supplier brochure 2010)
– A color consistency of 4 SDCM – A consistency of 5 SDM over lifetime
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March 21, 2012
Standard LEDInconsistent phosphor conversion
results in visual tint in the light beam
12
Color vs. Angle PerformanceConsistency Throughout the Beam
LED w/ Advanced Phosphor SystemSuperior color vs. angle delivers
consistent, pure white illumination
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March 21, 2012 13
LED Luminaires: A Move to a Digital World
Luminaires
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March 21, 2012
• Fixed white lightProduces one shade of cool, neutral, or warm white light
• Tunable white light Combines cool and warm white LEDs to create a range of shades
• Fixed color Produces light of a fixed hue — red, green, blue, amber . . .
• Color-changing (RGB)Combines red, green, and blue LEDs to produce millions of colors and color-changing effects
• Multi-spectrum Combines multiple channels of colored and white LEDs to increase the range of colors
14
LED Luminaire Options
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March 21, 2012 15
How LEDs Have Changed
LED Features/Performance by Application
Street Light Troffer E29 PAR Track Light
LED Power (Watts)
High Med Low-Med High High
LED Power Density (Watts/mm2)
Med Low Low Med-High HIGH!!
LED Source Size (mm2)
Med Med-Large Medium Small SMALL!!
Input Power (DC or AC)
DC DC AC AC or DC AC or DC
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March 21, 2012 16
LED Lighting Systems: A Move to a Digital World
Systems
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March 21, 2012
LED Installations: From Simple to Complex
Kitchen, Private Residence, Cambridge, MassachusettsPhotography: Testa Lighting Design, Inc.
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March 21, 2012 18
LED Installations: From Simple to Complex
Target Interactive Breezeway at Rockefeller Center, New York, New YorkPhotography: Courtesy of Electroland
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March 21, 2012 19
Power Integration Architecture Options
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March 21, 2012 20
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March 21, 2012 21
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March 21, 2012 22
LEDs: A Move to a Digital World
• We are beyond just source efficacy
• Quality of Light starts at the device
• LEDs are evolving to the Lighting applications
LEDs
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March 21, 2012
LED Luminaires: A Move to a Digital World
• There are solutions for general and specialized applications
23
Luminaires
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March 21, 2012
LED Lighting Systems: A Move to a Digital World
• Connectivity and Control are inherent to the technology
24
Systems
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March 21, 2012 25
Thank YouJ. Chad Stalker III, LC
Regional Marketing Manager, AmericasPhilips Lumileds Lighting Company