Method for generating source of white light in secondary laser mode and white light luminescence component

A technology of white light source and light-emitting components, which can be applied to laser components, lasers, luminescent materials, etc., and can solve the problems of poor laser efficiency of red phosphors

Inactive Publication Date: 2004-11-17
NANYA PLASTICS CORP
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Problems solved by technology

[0007] In order to improve the above shortcomings, General Electric Company (General Electric Company) disclosed in the U.S. Patent No. 6,255,670 that ultraviolet LEDs are used to excite three phosphors of red, green, and blue. The three primary colors are...

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  • Method for generating source of white light in secondary laser mode and white light luminescence component
  • Method for generating source of white light in secondary laser mode and white light luminescence component
  • Method for generating source of white light in secondary laser mode and white light luminescence component

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Embodiment Construction

[0043] Please refer to figure 2 , the present invention produces the method for white light source with secondary laser mode, can be actually applied to white light emitting assembly 10, and produces the white light source of high purity, so, can be applied to provide indoor lighting, special lighting, LCD backlight source, scanner , fax machines, mobile phones and military lighting and other purposes.

[0044] The white light emitting component 10 of the present invention is composed of an ultraviolet light or ultraviolet light chip 20 that can emit purple light or ultraviolet light with a wavelength of 360-420nm, and a resin encapsulation layer 30 coated on the ultraviolet light or ultraviolet light chip 20, wherein the The resin encapsulation layer 30 is formed by mixing the blue phosphor powder 40 and the yellow phosphor powder 50 with the encapsulation material 35, or further mixing red phosphor powder and green phosphor powder, and then heat curing or light hardening. ...

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Abstract

The invention is a method for using the secondary laser method to generate the white light source, it uses light source which can emit out ultraviolet and purple light (wavelength is 360-420nm), such as the illuminant diode (LED) and radium (LD), excites the blue fluorescence powder to emit out the primary excited light spectrum of the wideband whose main peak is blue light, then, the primary excited light spectrum excites the yellow fluorescence powder whose stage energy is lower, the secondary excited light spectrum can be emitted out whose main peak is yellow, through adjusting the proportion of the two kinds of fluorescence powder, the primary excited light spectrum and the secondary excited light spectrum can generate the complementary effect, and generate the whole spectrum white light; additional, there also can add in the red fluorescence powder and the green fluorescence powder excited by the ultraviolet light or the purple light, in order to adjust the color and the color temperature of the white light, and it can adjust the light source of other different color.

Description

technical field [0001] The present invention relates to a method for generating white light source by means of secondary laser, in particular to a white light emitting component capable of emitting high-purity white light source, which uses a chip capable of emitting ultraviolet light or purple light with a wavelength of 360-420nm as the light source. Excite the encapsulation material coated on the chip but mixed with blue phosphor powder and yellow phosphor powder formula, and emit high-purity white light source. Background technique [0002] According to the traditional light source currently used, since there are disadvantages such as heat radiation, heavy metal pollution and high power consumption in use, based on the purpose of saving energy and meeting environmental protection conditions, it should be replaced with a new one with high energy efficiency and environmental protection conditions. Light source products. [0003] The white light source made of light-emittin...

Claims

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Application Information

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IPC IPC(8): C09K11/08H01L33/50H01S5/00
CPCY02B20/181Y02B20/00
Inventor 杨铭发张纪铭冯殿润
Owner NANYA PLASTICS CORP
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