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Automatic focusing method and system for multi-light source projector

An automatic focus and projector technology, which is applied in the field of optical technology and computer, can solve the problems of inaccurate precision and achieve the effect of overcoming low precision and improving focusing efficiency

Active Publication Date: 2018-05-18
SHENZHEN ORBBEC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above problems, the present invention provides an automatic focusing method and system for a multi-light source projector, which can perform automatic focusing and effectively solve the problem of inaccurate accuracy caused by manual or mechanical focusing

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  • Automatic focusing method and system for multi-light source projector
  • Automatic focusing method and system for multi-light source projector
  • Automatic focusing method and system for multi-light source projector

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be emphasized that the following descriptions are only exemplary and not intended to limit the scope of the present invention and its application.

[0034] like figure 1 As shown, the present invention provides an automatic focusing method for a multi-light source projector, comprising the following steps: S1: the multi-light source projector projects multiple light beams to multiple spatial planes with different depths; S2: the acquisition module collects the Describe the spot images of multiple light beams on the multiple spatial planes; S3: According to the collected spot images, the calculation module calculates the parameter value of the definition in real time; S4: The focusing module continuously adjusts the relative position of the light source, and repeats steps S1- S3; S5: The focusing module obtain...

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Abstract

The invention discloses an automatic focusing method and system of a multi-light source projector. The method comprises the steps of S1, projecting a plurality of light beams to a plurality of space planes with different depths by the multi-light source projector; S2, acquiring light spot images of the plurality of light beams in the plurality of space planes in real time by an acquisition module; S3, calculating a parameter value of definition in real time by a calculation module according to the acquired light spot images; S4, constantly adjusting relative positions of light sources by a focusing module, and repeating the steps of S1-S3; and S5, acquiring an optical parameter value by the focusing module according to the parameter value which is acquired in real time, and adjusting the light sources to the optimal positions. By the method and the system, automatic focusing of the multi-light source projector can be achieved, the problem of poor accuracy brought by manual focusing in the prior art is solved, and meanwhile, the focusing efficiency can be substantially improved.

Description

technical field [0001] The invention relates to the fields of optical technology and computer technology, in particular to an automatic focusing method and system for a multi-light source projector. Background technique [0002] Laser projectors are often used in optical measurement, especially the generation and wide application of depth cameras based on structured light at present, which has prompted the continuous development of laser projectors as one of its components. At present, most laser projectors use a single edge-emitting laser light source. With the continuous development of lasers, vertical cavity surface lasers will be more and more popular due to their advantages such as small divergence angle, low power consumption and cost, small size and easy integration. More and more laser projectors are used. [0003] Although the vertical cavity surface emitting laser has many advantages, it is relatively difficult to adjust the relative position during the assembly p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/53
CPCG03B21/53
Inventor 黄源浩许星杨子荣
Owner SHENZHEN ORBBEC CO LTD
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