LED light source module with highlight power density

Abstract

The invention provides an LED light source module with the highlight power density. The LED light source module comprises a substrate, a plurality of LED light-emitting chips, a remote fluorescent powder layer and a heat sink. The middle of the substrate is provided with a groove. The LED light-emitting chips are arranged in the groove in the substrate to form an LED light-emitting chip array, the remote fluorescent powder layer is arranged above the groove in the substrate, the heat sink is a groove body and fixed to the position below the substrate, a sealed cavity is formed between the heat sink and the substrate, and the cavity is filled with phase change heat dissipation liquid used for dissipating the heat of the LED light-emitting chips. The LED light source module is high in output light power, small in light spot area, even in light spot brightness and long in service life.

Description

technical field [0001] The invention relates to an LED light source module with high optical power density, belonging to the fields of LED lighting, LED projection and the like. Background technique [0002] LED (light emitting diode), that is, light-emitting diode, as a new type of high-efficiency solid-state light source, has significant advantages such as long life, energy saving, and environmental protection. It is another leap in the history of human lighting after incandescent lamps and fluorescent lamps. The new lighting technology has great economic and social significance. [0003] With the continuous development of semiconductor technology, LED technology has developed rapidly, and the performance of LED parameters such as luminous intensity, peak wavelength, and half-wave bandwidth has been greatly improved. At this stage, the optical power of a single LED is getting higher and higher; the peak wavelength is becoming more and more stable, the half-wave bandwidth ...

AI Technical Summary

Problems solved by technology

Although the luminous flux of a single LED can reach 5-20 lumens at present, the output light power is limited after all.

Using multiple LEDs arranged into a large-area light-emitting panel can increase the output light power to a certain extent, but because the area of ​​the light-emitting panel is too large, it is impossible to obtain high optical power density in a small illuminated area, which is easy in practical applications. restricted

In addition, the heat dissipation problem caused by the arrangement of multiple LEDs will greatly reduce the total light output power, stability and service life

In addition, the absorption of light by the additional concentrator will also reduce the total light output power. These factors restrict the application of LEDs in the fields of photomedicine, photobiology, photochemical catalysis, and optical communications.

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