Novel high-power LED (light emitting diode) integrated light source

Abstract

The invention discloses a novel high-power LED (light emitting diode) integrated light source which comprises a bracket, blue chips, red chips and yellow or green emitting phosphor which is filled between the bracket and LED chips, wherein a plurality of red chips and a plurality of blue chips are installed on the exposed bracket in proportion; the red chips and the blue chips are interlaced mutually and distributed uniformly; the yellow or green emitting phosphor is filled between the outer surface of the red chips and blue chips and the bracket; the plurality of red chips and the plurality of blue chips are installed on the bracket in proportion; and the outer surfaces of the red chips and blue chips are tiled with yellow emitting phosphor materials. According to the invention, through adding the yellow emitting phosphor on the high-voltage blue chips and red chips, the luminous efficiency and the color rendering index are improved, the severe problem of color drifting is solved, and the luminous efficiency is improved by more than 25% compared with those of low-voltage chips. A warm white light source is packaged through adding the yellow or green emitting phosphor on the blue chips and the red chips, thus the color rendering index can reach more than 90.

Description

technical field [0001] The invention relates to an LED light source, in particular to a high-power LED light source for lighting level. Background technique [0002] At present, the world's energy shortage has caused countries to attach great importance to energy-saving technologies. While vigorously developing renewable and clean energy such as solar energy and wind energy, countries are also increasing their efforts in rational and effective use of energy. Reflected in lighting is the continuous innovation and wide application of various new light sources. Among them, light-emitting diodes have attracted more and more attention due to their low energy consumption, high luminous efficiency, long life and high reliability, and have been gradually applied to the lighting field. Due to the constraints of the LED chip manufacturing process and the axial limitation of the LED light source, it is difficult for a single-chip packaged LED to meet the lighting requirements, and the...

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Problems solved by technology

[0004] In view of the above defects, in order to solve the problems of serious color temperature drift, low luminous efficiency, low color rendering index, poor thermal stability, serious color temperature drift after long-term lighting, and low luminous flux maintenance rate in the prior art LED packaging structure, the present invention provides a A new type of high-power LED integrated light source

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