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Optical projection module

An optical projection and module technology, which is applied in optics, optical components, character and pattern recognition, etc., can solve problems such as deformation of optical devices, difficulty in dissipating heat quickly, failure of structural light deformation of optical projection modules, etc., to ensure quality Effect

Inactive Publication Date: 2019-10-25
TRIPLE WIN TECHSHENZHEN CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the VCSEL has a high temperature when it is powered on, and it is difficult to dissipate the heat quickly when it is uploaded to the optical device. The heat generated by the VCSEL can easily cause the deformation of the optical device, and eventually lead to the deformation and failure of the structured light emitted by the optical projection module.

Method used

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Embodiment Construction

[0026] The optical projection module provided by the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0027] It should be noted that when an element is referred to as being “fixed on”, “disposed on” or “installed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be used for both fixing and circuit communication.

[0028] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing th...

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Abstract

An optical projection module comprises a circuit board; a vertical cavity surface emitting laser array chip which is arranged on the circuit board in an electric connection mode and used for emittinga light beam; and an optical device which is arranged on the circuit board and comprises a lens used for receiving and collimating the light beam; a diffractive optical element which is used for expanding the light beam to form a fixed light beam pattern and emitting the fixed light beam pattern outwards; and a lens barrel for fixing the lens and the diffractive optical element, wherein the lens cone comprises an inner lens cone and an outer lens cone, the lens is arranged in the inner lens cone, and the inner lens cone is fixed on the outer lens cone.

Description

technical field [0001] The invention relates to an optical projection module used in a depth camera. Background technique [0002] The depth camera can obtain the depth information of the target to realize 3D scanning, scene modeling, and gesture interaction. Compared with the currently widely used RGB camera, the depth camera is gradually being valued by all walks of life. For example, the combination of depth camera, TV, computer, etc. can realize somatosensory games to achieve the effect of two-in-one game and fitness. In addition, Google's tango project is committed to bringing depth cameras to mobile devices, such as tablets and mobile phones, so as to bring a completely subversive experience. For example, it can realize a very real AR game experience, and can use it for indoor map creation and navigation. and other functions. [0003] The core component of the depth camera is the optical projection module. With the continuous expansion of applications, the optical pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G02B7/00
CPCG03B21/2013G03B21/2033G03B21/208G02B7/008G03B21/20G02B7/028G02B7/021G02B27/20G02B27/4233G06V40/166G06V40/172G02B27/18G02B27/0916G02B27/0988G02B27/0944G02B27/30
Inventor 李静伟陈信文丁盛杰宋建超
Owner TRIPLE WIN TECHSHENZHEN CO LTD
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