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Laser projection module and depth camera

A technology of laser projection and module, which is applied in the field of optics and electronics, can solve the problem of large volume of laser projection module, and achieve the effect of small size and high contrast

Inactive Publication Date: 2017-09-15
SHENZHEN ORBBEC CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of the large volume of the laser projection module in the prior art, and propose a laser projection module and a depth camera

Method used

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  • Laser projection module and depth camera
  • Laser projection module and depth camera

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Embodiment Construction

[0021] The present invention will be described in further detail below in combination with specific embodiments and with reference to the accompanying drawings. Wherein the same reference numerals denote the same components, unless otherwise specified. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0022] The invention proposes an optical projection device and a depth camera based thereon. In the following description, the optical projection device and the depth camera will be described as examples, but it does not mean that this optical projection device can only be applied to the depth camera, any other device that directly or indirectly uses this solution should be used Included in the protection scope of the present invention.

[0023] figure 1 The side schematic diagram of the depth camera based on structured light is shown. The main components of the depth camera 101...

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Abstract

The invention provides a laser projection module, which comprises a light source for emitting light beams; a gathering lens used for receiving and gathering the light beams emitted by the light source; a specific optical element, which comprises an optical surface having a reflection function and is used for reflecting at least a part of the light beams; and a pattern generator used for receiving the light beams reflected by the specific optical element and outputting a structured light pattern. The invention also provides a depth camera, which comprises the laser projection module above and is used for projecting a structured light beam image to a target space. According to the laser projection module and the depth camera, by arranging the gathering lens having the gathering function and the specific optical element having the reflection function, the laser projection module and the depth camera are allow to have smaller sizes respectively.

Description

technical field [0001] The invention relates to the fields of optics and electronics technology, in particular to a laser projection module and 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 and computer can realize somatosensory games to achieve the two-in-one effect of game and fitness. Microsoft's KINECT and Obi Zhongguang's ASTRA are representatives of them. 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B17/54G03B30/00
CPCG03B17/54G03B21/2033G03B21/2053G03B21/206
Inventor 闫敏王兆民许星
Owner SHENZHEN ORBBEC CO LTD
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