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纳米陶瓷辐射散热英文版.ppt

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Active Nano Far Infrared Radiant Heat Dissipation Apply to LED Lighting
Updated : October, 2010
Outline
New Lighting Solution in 21 Century
LED Luminous Theory
LED Optical Properties
LED Radiant Heat Dissipation Technology
Structure Analysis
Q&A
Lighting Sources (Energy Transfer)
Traditional Lighting: Heat → Light
Burn → Heat → Light: Fire by rubbing stick, Candle
*
New Lighting Replacement Rule in the New Era
Characteristics
Lighting Life Duration (Life Span)
Power Consumption
Lumen (lm)/Price Raito
*
LED Structure
Light
P Electrode (＋)
N Electrode (-)
Lighting Layer
(Activating Layer_
N Layer
P Layer
N Type Substrate
(Sapphire)
Electronic Characteristics
V-I Characteristics：Voltage & Current Relation of LED
Forward Voltage VF
Operation Voltage: Voltage under provided forward current
Measured under IF=20mA
LED forward voltage VF range (～)
Forward Voltage VF
VF will decrease while PN junction temperature increase.
Reverse Current IR
Usually, the reverse current IR bellow 10μA
SUPA TechLED Radiant Heat Dissipation
Great Heat Dissipation Solution
Entering Green Energy Era
LED Radiant Heat Dissipation Revolution

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