White light source based on laser, optical fiber and light-emitting component, and light-emitting component manufacturing method

A technology of white light source and light-emitting part, which is applied to optical elements, electric light sources, lighting and heating equipment used to change the spectral characteristics of emitted light, etc. Limit LED chip heat, inconvenience linear light source and other issues, to achieve the effect of improving luminous efficiency, reducing loss, and flexible installation

Inactive Publication Date: 2015-06-17
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Now solid-state lighting is more mature than LED lighting. LED has attracted much attention due to its high electro-optical conversion efficiency, but the distance between LED chip and phosphor powder is very close, and the luminous efficiency of phosphor powder is severely limited by the heat emitted by the LED chip. The heat dissipation problem has always been a problem. An important factor restricting the development of LED
[0004] At present, most of the lasers used as lighting sources use the mode of separating the phosphor powder and the optical fiber, which is not easy to realize a linear light source.

Method used

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  • White light source based on laser, optical fiber and light-emitting component, and light-emitting component manufacturing method
  • White light source based on laser, optical fiber and light-emitting component, and light-emitting component manufacturing method

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Embodiment 1

[0027] A method for preparing a light-emitting part, which includes a light-leaking optical fiber used to make the light-emitting part, the preparation method being:

[0028] 1) The light-leakage fiber is chemically corroded by hydrofluoric acid, so that the laser transmitted in the light-leakage fiber can leak out from the corroded place; the method of corrosion treatment is to vertically intrude a certain length of fiber into a certain concentration of strong alkali or strong acid to obtain Use the pulling method to slowly lift the optical fiber at a certain speed. The roughness of different parts of the optical fiber will be different depending on the soaking time of the optical fiber in the solution. By controlling the process, the laser can leak from the side of the corroded optical fiber with a certain intensity distribution. The part of the fiber that is corroded is defined as the light-leakage fiber, and the part of the fiber that is not corroded is defined as the trans...

Embodiment 2

[0031] A method for preparing a light-emitting part, which includes a light-leaking optical fiber used to make the light-emitting part, the preparation method being:

[0032] 1) Engraving the light-leakage fiber, so that the laser transmitted in the light-leakage fiber can leak out from the leakage; the part of the fiber that is engraved is defined as the light-leakage fiber, and the part of the fiber that is not engraved is defined as the transmission fiber.

[0033] 2) Red, green, blue, and yellow four-color phosphors are mixed according to the mass percentage of red: 35.1%, green: 38.9%, blue: 18%, yellow: 8%, and then cured on the surface of the light-leaking optical fiber by epoxy resin. The curing process is: add the calculated ratio of fluorescent powder to the calculated ratio of epoxy resin, 1 gram of four-color fluorescent powder mixture: 3 to 6 grams of silica gel or epoxy resin, stir evenly, and use ultrasonic waves for further homogenization treatment , using the ...

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Abstract

The invention discloses a white light source based on a laser, an optical fiber and a light-emitting component, and a light-emitting component manufacturing method, and relates to a white light source and the manufacturing method of a light-emitting component thereof. The manufacturing method of the light-emitting component comprises the following steps of: firstly, etching or engraving the optical fiber, and then solidifying and coating fluorescent powder on the surface of the etched or engraved optical fiber. The white light source based on the laser, the optical fiber and the light-emitting component comprises the laser, the transmission optical fiber and the light-emitting component; the laser is connected with the light-emitting component via the transmission optical fiber. The white light source reduces the loss of light beams during the transmission from the transmission optical fiber to the light-emitting component, facilitates the realization of a linear light source, can separately allocate the laser and the light-emitting component, can install the light source flexibly, ensures that the light-emitting efficiency of the light-emitting component will not be affected by the heat dissipated by the laser, solves the problem that heat dissipation affects light-emitting efficiency, and improves the light-emitting efficiency of the light source, thus the light beams emitted by the light source have uniform color temperature and a high color development index.

Description

technical field [0001] The invention relates to a preparation method of a white light source and a light emitting part thereof, in particular to a preparation method of a white light source based on a laser, an optical fiber and a light emitting part and a light emitting part thereof. Background technique [0002] In recent years, with the increasing demand for energy and the shortage of global resources, energy conservation and emission reduction have received unprecedented attention. As a light source, lasers in the visible band have their own characteristics, especially the development of semiconductor laser technology. The laser as a lighting tool has taken a big step forward. At present, the efficiency of semiconductor lasers with a wavelength of 980 nm is ≥76%. In theory, the efficiency in the visible band will be ≥70%. Such high energy conversion efficiency of semiconductor lasers is more energy-efficient than traditional incandescent and fluorescent lamps. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S2/00F21V8/00F21V9/10F21V9/40
Inventor 尹韶云罗智田杜春雷孙秀辉吴鹏夏良平史浩飞
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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