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Laser light source module and laser projection system

A laser light source and module technology, applied in the direction of lasers, laser devices, laser components, etc., can solve the problems of not considering the beam characteristics of semiconductor lasers, low power density, unfavorable overall system design, etc.

Inactive Publication Date: 2020-07-07
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the existing technology does not consider the beam characteristics of semiconductor lasers, but simply increases the laser power density through spatial arrangement. There is a large gap between the spots, the power density is low, and the volume is large, which is not conducive to the design of the whole machine system.

Method used

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  • Laser light source module and laser projection system
  • Laser light source module and laser projection system
  • Laser light source module and laser projection system

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Embodiment

[0027] Embodiment: A laser light source module provided by the embodiment of the present invention, such as figure 1 and Figure 5 As shown, it includes a laser array package 100 and an optical filter 200, and the optical filter 200 is correspondingly arranged on the optical path of the laser array package 100. The laser array package 100 includes a heat sink 110 and an array arrangement and is packaged on The semiconductor laser 120 on the heat sink 110, such as figure 2 As shown, the filter 200 includes filter functional regions arranged side by side, and the filter functional regions include reflective regions 210 and transmissive regions 220 arranged at intervals.

[0028] Such as image 3 As shown, the semiconductor laser 120 includes a packaging case 121 , a semiconductor laser chip 122 disposed in the packaging case 121 , and a collimating lens 123 disposed at the front end of the semiconductor laser chip 122 . The laser array package 100 includes semiconductor lase...

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Abstract

The invention discloses a laser light source module and a laser projection system. The laser light source module comprises a laser array package and an optical filter, the optical filter is correspondingly arranged on an optical path of the laser array package, and the laser array package comprises semiconductor lasers which are arranged in an array mode. The light filter comprises a light filtering function area corresponding to the semiconductor laser, the light filtering function area comprises a reflection area and a transmission area which are arranged at intervals, the problem that the light spot gap is large due to limitation of a laser array packaging structure is solved, the internal structure of the laser light source module is simplified, and the difficulty of the subsequent assembly process is reduced.

Description

technical field [0001] The invention relates to the field of semiconductor lasers, more specifically, it relates to a laser light source module and a laser projection system. Background technique [0002] With the continuous development of display technology, people's demand for high-brightness, large color gamut, and long-life display devices is becoming more and more urgent, and laser display technology just corresponds to this pain point. The core light source of laser display technology mostly uses semiconductor lasers with the characteristics of high brightness, small size, long life, low cost and high reliability, commonly known as laser diodes (LD, Laserdiode). Limited by the level of semiconductor technology and the characteristics of the material itself, the current output power of a single semiconductor laser is low, mostly between several hundred milliwatts and several watts, and the packaging of LD is mostly TO packaging. In order to meet the needs of laser disp...

Claims

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Application Information

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IPC IPC(8): H01S5/40H01S5/022G03B21/20
CPCG03B21/2033H01S5/4025H01S5/023H01S5/0233H01S5/0235
Inventor 杨兴许礼强王瑞
Owner TCL CORPORATION