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A structured light projector and a 3D camera

A projector and structured light technology, applied in the field of optical projection, can solve the problems of increasing the cost and power consumption of 3D cameras, unfavorable miniaturization design of 3D cameras, etc., and achieve the effect of saving space and cost

Active Publication Date: 2021-04-20
SHENZHEN GUANGJIAN TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since the infrared flood illuminator is generally composed of one or more infrared lasers and a diffusion film, it can be seen that the setting of the infrared flood illuminator increases the cost and power consumption of the entire 3D camera, which is not conducive to the miniaturization of the 3D camera. design

Method used

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  • A structured light projector and a 3D camera
  • A structured light projector and a 3D camera
  • A structured light projector and a 3D camera

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Embodiment Construction

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] refer to figure 2 , figure 2 A schematic structural diagram of a structured light projector provided in an embodiment of the present invention, the structured light projector includes:

[0053] Flood li...

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Abstract

The present invention provides a structured light projector and a 3D camera. By controlling the optical path modulator to modulate the output light of the flood light source, the structured light projector can realize the combination of emitting speckle lattice and light output with continuous distribution of light intensity. Switching back and forth between them realizes the functions of the structured light projector and the infrared flood illuminator at the same time, which saves the space and cost of an independent infrared flood illuminator, and is conducive to the miniaturization design of the 3D camera.

Description

technical field [0001] The invention relates to the technical field of optical projection, and more specifically, to a structured light projector and a 3D camera. Background technique [0002] Structured light is a system structure composed of a projector and a camera. After the projector projects the undetermined light information to the surface of the object, it is collected by the camera, and the position and depth of the object are calculated according to the change of the light signal caused by the object. Information, and then restore the entire three-dimensional space, which is a solution to realize the 3D camera. [0003] Based on the 3D camera, there are mainly three implementation methods, one is structured light; the other is Time of Flight (ToF for short); the third is binocular camera. In the field of consumer electronics, structured light solutions and ToF solutions are more mainstream. Both require active infrared light projection. The structured light soluti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B15/02H04N13/225
CPCG03B15/02G02F1/13H04N13/254H04N13/271
Inventor 朱力吕方璐汪博
Owner SHENZHEN GUANGJIAN TECH CO LTD
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