With the use of wall-plug efficiency, estimation techniques for the optical power and heat-dissipation coefficient of LEDs are introduced in this paper to enrich the photo-electro-thermal theory, which has provided a framework for analyzing LED systems. The estimation methods consist of simple procedures for optical and electrical power measurements, which are easy for LED device manufacturers and system designers to follow. The extended theory has been tested with several types of LED devices, with reasonably good agreements between theoretical and practical results. © 2011 IEEE.published_or_final_versio
Light-emitting diode (LED) arrays have attracted increased attention in the area of high power intel...
Thermal management of light-emitting diode (LED) chips is crucial for light extraction and lifetime....
LEDs are widely used light sources. Their main advantages are low power consumption, mechanical stre...
In this paper, a GaN-LED with sapphire structure and a thin-film LED without sapphire structure are ...
The photometric, electrical and thermal features of LED systems are highly dependent on one another....
Thermal characterizations of high power light emitting diodes (LEDs) and laser diodes (LDs) are one ...
High-power Light Emitting Diode (LED) generates significant amount of heat fluxes that can affect th...
High-power Light Emitting Diode (LED) generates significant amount of heat fluxes that can affect th...
This paper presents a dynamic photoelectrothermal theory for light-emitting diode (LED) systems. In ...
Although critical to the lifetime of LED, the junction temperature of LED cannot be measured easily....
Besides their electrical properties the optical parameters of LEDs also depend on junction temperatu...
This paper shows that the junction temperature and input and output power of light-emitting diodes (...
The paper examines the high power Light Emitted diode (LED) and the hear distribution of the heat si...
An order of magnitude improvement in power efficiency of light emitting diodes (LEDs) over incandesc...
Light-emitting diode (LED) arrays have attracted increased attention in the area of high power intel...
Light-emitting diode (LED) arrays have attracted increased attention in the area of high power intel...
Thermal management of light-emitting diode (LED) chips is crucial for light extraction and lifetime....
LEDs are widely used light sources. Their main advantages are low power consumption, mechanical stre...
In this paper, a GaN-LED with sapphire structure and a thin-film LED without sapphire structure are ...
The photometric, electrical and thermal features of LED systems are highly dependent on one another....
Thermal characterizations of high power light emitting diodes (LEDs) and laser diodes (LDs) are one ...
High-power Light Emitting Diode (LED) generates significant amount of heat fluxes that can affect th...
High-power Light Emitting Diode (LED) generates significant amount of heat fluxes that can affect th...
This paper presents a dynamic photoelectrothermal theory for light-emitting diode (LED) systems. In ...
Although critical to the lifetime of LED, the junction temperature of LED cannot be measured easily....
Besides their electrical properties the optical parameters of LEDs also depend on junction temperatu...
This paper shows that the junction temperature and input and output power of light-emitting diodes (...
The paper examines the high power Light Emitted diode (LED) and the hear distribution of the heat si...
An order of magnitude improvement in power efficiency of light emitting diodes (LEDs) over incandesc...
Light-emitting diode (LED) arrays have attracted increased attention in the area of high power intel...
Light-emitting diode (LED) arrays have attracted increased attention in the area of high power intel...
Thermal management of light-emitting diode (LED) chips is crucial for light extraction and lifetime....
LEDs are widely used light sources. Their main advantages are low power consumption, mechanical stre...