leds: the move to a digital world presented by chad stalker
DESCRIPTION
J. Chad Stalker III, LC presented the following at LEDucation 6 - March 21, 2012 - NYC, NY 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 developedTRANSCRIPT
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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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The Digital Continuum
• Time
• Rate of Change
• Impact of Change
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(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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(fill in the blank) : A Move to a Digital WorldLEDs :
LEDs Luminaires Systems
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LEDs: A Move to a Digital World
LEDs
Efficacy vs. TraditionalSources
Quality of Light
Optimized for Lighting Applications
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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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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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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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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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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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Standard LEDInconsistent phosphor conversion
results in visual tint in the light beam
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Color vs. Angle PerformanceConsistency Throughout the Beam
LED w/ Advanced Phosphor SystemSuperior color vs. angle delivers
consistent, pure white illumination
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LED Luminaires: A Move to a Digital World
Luminaires
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• 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
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LED Luminaire Options
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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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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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LED Installations: From Simple to Complex
Target Interactive Breezeway at Rockefeller Center, New York, New YorkPhotography: Courtesy of Electroland
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Power Integration Architecture Options
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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
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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
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Systems
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Thank YouJ. Chad Stalker III, LC
Regional Marketing Manager, AmericasPhilips Lumileds Lighting Company