Laser light source packaging method based on aluminium nitride ceramic
A technology of aluminum nitride ceramics and laser light source, which is applied in the field of lighting, can solve the problems of unfavorable laser light source life, complex process, low efficiency, etc., and achieve the effects of increased life, high light output efficiency, and high thermal conductivity
Pending Publication Date: 2018-02-23
广东中晶激光照明技术有限公司
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Problems solved by technology
In the existing laser lighting technology, LD is generally used as the laser light source. Since the LD emits a large amount of heat when it is lit, it is necessary to quickly export the heat generated by the LD when it is used for high-power LD packaging. However, the existing LD The heat conduction method adopted is complex in process and low in efficiency, which is not conducive to improving the life of the laser light source
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[0032] like figure 1 As shown, it is a laser light source packaging structure based on aluminum nitride ceramics according to the present invention, which is characterized in that it includes an aluminum nitride ceramic substrate 1, a laser chip 3 and a light conversion medium 2, and the laser chip 2 is fixed on the nitrogen On the aluminum nitride ceramic substrate 1, the light conversion medium 2 used for laser conversion to white light is covered above the position where the laser chip 3 is fixed on the aluminum nitride ceramic substrate 1; the light conversion medium 2 has a curved shape, and the inside With a groove 21 for covering the laser chip 3, the blue light emitted by the laser chip 3 passes through the light conversion medium 2 and is excited and converted into white light. Further, the light wavelength of the blue laser is between 420-470nm; the light conversion medium 2 can be any one of transparent fluorescent glass, transparent fluorescent ceramics, and fluore...
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Abstract
The invention belongs to the illumination technical field, and specifically relates to a laser light source packaging method based on an aluminium nitride ceramic; the method comprises the following steps: 1, preparing an aluminium nitride ceramic substrate, and fixing one or more LD chips on the aluminium nitride ceramic substrate; 2, covering a light transition medium used for converting laser into white light on positions on which the laser chips are fixed on the aluminium nitride ceramic substrate, wherein the light transition medium has a radian on the profile, and grooves are arranged inside so as to cover the laser chips; 3, using the light transition medium to activate and convert the passing blue laser outputted by the laser chip into white lights.
Description
technical field [0001] The invention belongs to the technical field of illumination, and in particular relates to a light source emitting white light based on a laser chip. Background technique [0002] At present, the most advanced technology used in the field of lighting is LED lighting. Compared with traditional incandescent lamps and energy-saving lamps, LED lighting can save 50-70% of electricity; and laser lighting, as the next-generation lighting technology of LED, can save 50-50% of electricity compared with LED. 80%, will become the replacement product of LED. In the existing laser lighting technology, LD is generally used as the laser light source. Since the LD emits a large amount of heat when it is lit, it is necessary to quickly export the heat generated by the LD when it is used for high-power LD packaging. However, the existing LD The heat conduction method adopted has complicated process and low efficiency, which is not conducive to improving the service lif...
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IPC IPC(8): H01S5/02H01S5/024
CPCH01S5/0206H01S5/02469
Inventor 夏泽强
Owner 广东中晶激光照明技术有限公司