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Adaptively adjusted laser projection module and depth camera

An adaptive adjustment and laser projection technology, which is applied in the fields of optics and electronics, can solve the problems of detecting laser intensity and reducing volume, and achieve the effect of reducing volume and high contrast

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

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the laser projection module in the prior art cannot reduce the volume while taking into account the detection of laser intensity, and propose an adaptively adjusted laser projection module and depth camera

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  • Adaptively adjusted laser projection module and depth camera
  • Adaptively adjusted laser projection module and depth camera
  • Adaptively adjusted laser projection module and depth camera

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Embodiment Construction

[0020] 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.

[0021] 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.

[0022] 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 an adaptively adjusted laser projection module. The module comprises a light source, a specific optical element, a pattern generator and a light beam detector. The specific optical element comprises at least one light dividing face, wherein each light dividing face is used for reflecting and transmitting at least parts of light beams emitted by the light source. The pattern generator receives light beams parts of which are reflected or transmitted through the light dividing face, and externally emitting structure light patterns. The light beam detector is used for receiving the light beams parts of which are reflected or transmitted through the light dividing face, and detecting the intensity of the light beams. The invention also provides a depth camera. The depth camera comprises the adaptively adjusted laser projection module and is used for projecting structuralized light beam images towards a target space. According to the invention, by use of the specific optical element having the reflection and transmission functions, the laser projection module has quite small size; and by combining an optical detector, the light source can be detected anytime and anywhere, so laser intensity can be further controlled and damage to human is avoided.

Description

technical field [0001] The invention relates to the technical fields of optics and electronics, in particular to an adaptively adjusted 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 func...

Claims

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Application Information

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