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Linear laser light source

A linear laser and light source technology, applied in the field of optics, can solve the problem that the brightness of the divergence angle of a straight-line light spot cannot meet the application requirements, and achieve the effect of improving the uniformity of the divergence angle and brightness and reducing the difficulty of shaping

Inactive Publication Date: 2022-02-01
深圳瑞识智能科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the inline light output by conventional inline lasers is difficult to meet the application requirements in terms of divergence angle and spot brightness.

Method used

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  • Linear laser light source
  • Linear laser light source
  • Linear laser light source

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Embodiment Construction

[0025] In the traditional linear laser light source, the EEL chip is basically used as the light source chip for outputting laser light, but the EEL chip is a side-emitting chip, and the output laser light is an elliptical spot, which makes it difficult to shape the laser light; and Since the EEL chip needs to be tested one by one in the performance test, batch testing cannot be realized, which brings great inconvenience to the application of the EEL chip. However, the EEL chip is a relatively mature chip in the industry at present. As a result, when forming a laser light source in the industry, more consideration will be given to the EEL chip, and the inconvenience it brings is ignored.

[0026] In addition, in the traditional linear laser light source, the divergence angle of the laser light usually diffracts the light output from the EEL chip through the DOE (optical diffraction element) to expand its divergence angle, but the linear light output in this way There is a cert...

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Abstract

The invention discloses a linear laser light source which comprises a substrate, a single VCSEL chip arranged on the substrate or a plurality of VCSEL chips arranged in parallel in the direction of a set straight line, and a shaping lens arranged on an output light path of the VCSEL chips. And the shaping lens is used for diffusing the laser light output by the VCSEL chip along a direction parallel to a set straight line. The VCSEL chip is used as a light source chip for outputting laser light, the VCSEL chip is an area light source and can output circular light spots, and compared with a traditional EEL chip, the shaping difficulty is smaller; on the basis, the shaping lens is used as an optical element for diffusing the output light of the VCSEL chip, so that the divergence angle of the finally output linear light and the uniformity of the brightness can be improved to a certain extent.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to an inline laser light source. Background technique [0002] An inline laser is also a laser whose output laser spot is an inline spot. Inline laser is a convenient and practical positioning tool, which is widely used in machine vision, industrial inspection, automatic driving and other fields. As the application scenarios become more and more complex, the requirements for the parameter specifications of the linear light output by the in-line laser are also getting higher and higher. Generally speaking, the parameter specification requirements of linear light are mainly the requirements on divergence angle, optical power and brightness uniformity of linear light. The more complex the application environment, the higher the requirements for linear light. [0003] However, the in-line light output by conventional in-line lasers cannot meet the application requirements in terms o...

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Application Information

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IPC IPC(8): H01S5/02253H01S5/02355H01S5/183H01S5/42
CPCH01S5/02253H01S5/02355H01S5/183H01S5/423
Inventor 李红余志强陈林李丹勇汪洋
Owner 深圳瑞识智能科技有限公司