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Structured light module and three-dimensional sensing device

A structured light and module technology, applied in measurement devices, optical devices, optics, etc., can solve the problem of poor light continuity of linear array structured light modules, uneven distribution of Gaussian beam light intensity, and restricting the development of three-dimensional sensing technology, etc. problem, to achieve good uniform light and beam expansion, good 3D scanning sensing effect, uniform and clear line thickness

Pending Publication Date: 2019-05-28
DONGGUAN VISIONX-TECH CO LTD
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Problems solved by technology

However, under normal circumstances, the beam emitted by the laser in the linear array structured light device is a Gaussian beam, and the light intensity distribution of the Gaussian beam is not uniform, and the beam emitted by the laser cannot be well uniformed and expanded after passing through the collimating lens. This will easily lead to poor light continuity of the linear array structured light module and unsatisfactory scanning effect, which seriously restricts the development of three-dimensional sensing technology

Method used

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  • Structured light module and three-dimensional sensing device

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Embodiment Construction

[0026] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ...

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Abstract

The invention provides a structured light module and a three-dimensional sensing device, and belongs to the technical field of three-dimensional scanning sensing. The module comprises a light source,a collimating lens, a micro-electronic galvanometer and a linear grating, wherein the light source is used for emitting light beams, and the collimating lens, the micro-electronic galvanometer and thelinear grating are sequentially arranged in the optical axis direction of the light beams; the micro-electronic galvanometer is used for reflecting the light beams emitted by the collimating lens andconducting scanning in the linear scanning direction; the linear grating is used for homogenizing and expanding the scanning light beams in the linear scanning direction. The uniformity of light scanning lines can be improved, and then the scanning effect is improved.

Description

Technical field [0001] The present invention relates to the technical field of three-dimensional scanning sensing, in particular to a structured light module and a three-dimensional sensing device. Background technique [0002] With the development of artificial intelligence, three-dimensional sensing has a huge potential application space in the fields of industrial inspection, mobile robot scene recognition, reverse engineering, laser remote sensing monitoring, human-computer interaction, and biometrics. Three-dimensional scanning technology has gradually entered the public eye. In the 3D scanning technology, the linear structured light module plays a very important role as the main component. [0003] Generally, a linear array structured light module includes a laser, a collimating lens, and a microelectronic galvanometer. The microelectronic galvanometer realizes the scanning of the beam emitted by the laser along a straight line. But under normal circumstances, the beam emit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B26/10G02B27/09G01B11/00
Inventor 彭天才余吉军戴书麟
Owner DONGGUAN VISIONX-TECH CO LTD
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