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Laser projection module, depth camera and electronic device

A laser projection and module technology, applied in the field of optics and electronics, can solve the problems of falling off of diffractive optical elements, easy burns to users, easy failure of glue, etc., to avoid abnormal effects

Inactive Publication Date: 2018-08-10
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The laser projection module needs to install diffractive optical elements (DOE) on the laser emission path, and the diffractive optical elements are usually glued directly to the lens barrel of the laser projection module by glue, and the glue is easy to fail, resulting in the diffractive optical elements If it falls off, the laser will easily burn the user after it is emitted directly

Method used

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  • Laser projection module, depth camera and electronic device
  • Laser projection module, depth camera and electronic device
  • Laser projection module, depth camera and electronic device

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Embodiment Construction

[0062] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The same or similar reference numerals in the drawings represent the same or similar elements or elements having the same or similar functions throughout.

[0063] In addition, the embodiments of the present invention described below in conjunction with the accompanying drawings are exemplary, and are only used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0064] In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simpl...

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Abstract

The invention discloses a laser projection module. The laser projection module comprises a substrate assembly, a lens barrel, a light source, a collimation component, a diffractive optical element, aprotective cover and a detection component. The lens barrel comprises a lens barrel sidewall, the lens barrel sidewall and the substrate assembly form an accommodation cavity, and the lens barrel further comprises a limiting projection. The light source is arranged on the substrate assembly and used to emit laser to the accommodation cavity. The collimation component is accommodated in the accommodation cavity. The diffractive optical element is mounted on the limiting projection, and the light lens, the collimation component and the diffractive optical element are arranged on an optical pathof the light source successively. The protective cover is combined with the lens barrel, and comprises a protective top wall, a light through hole is formed in the protective top wall and correspondsto the diffractive optical element, the diffractive optical element is positioned between the limiting projection and the protective top wall, and the detection component is buried in the protective top wall. The invention also discloses a depth camera and an electronic device. The position of the diffractive optical element is limited by the protective top wall together with the limit projection,and the diffractive optical element does not fall off along the light output direction.

Description

technical field [0001] The present invention relates to the field of optical and electronic technologies, and more specifically, to a laser projection module, a depth camera and an electronic device. Background technique [0002] The laser projection module needs to install diffractive optical elements (DOE) on the laser emission path, and the diffractive optical elements are usually glued directly to the lens barrel of the laser projection module by glue, and the glue is easy to fail, resulting in the diffractive optical elements If it falls off, the laser will easily burn the user after it is emitted directly. Contents of the invention [0003] Embodiments of the present invention provide a laser projection module, a depth camera, and an electronic device. [0004] The laser projection module of the embodiment of the present invention includes: [0005] Substrate components; [0006] A lens barrel, the lens barrel includes a side wall of the lens barrel, the side wall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G02B7/00G03B30/00
CPCG02B7/00G03B21/145
Inventor 白剑
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD