Structured light projection module, image acquisition device and electronic device
A structured light and module technology, applied in the field of optics and electronics, can solve the problem of not being able to obtain the depth image of the target object, and achieve the effect of expanding the projection range
Inactive Publication Date: 2018-09-07
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
[0002] In the prior art, the image acquisition device usually uses the structured light projection module to project the structured light to the target object, and then uses the image acquisition device to collect the structured light modulated by the target object to obtain the depth image of the target object. When there are too many target objects Or when the volume is large, the structured light projection module can only project to part of the target object, so that the complete depth image of the target object cannot be obtained
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[0032] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The same or similar reference numerals in the drawings represent the same or similar elements or elements having the same or similar functions throughout.
[0033] In addition, the embodiments of the present invention described below in conjunction with the accompanying drawings are exemplary, and are only used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0034] In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simpl...
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The invention discloses a structured light projection module, an image acquisition device and an electronic device. The structured light projection module comprises a laser generator, an optical component, two collimating components, and two diffractive optical components. The laser generator is configured to emit a laser. The optical component is disposed on the optical path of the laser generator, and includes a light splitting portion and a reflecting portion which are oppositely disposed, wherein the light splitting portion is configured to split the laser emitted by the laser generator into a first laser and a second laser, and the reflecting portion is configured to reflect the first laser and second laser. The first laser reflected by the reflecting portion passes through one of thecollimating elements and one of the diffractive optical elements and then is emitted. The second laser reflected by the reflecting portion passes through the other collimating element and the other diffractive optical element and then is emitted. The light splitting portion of the optical module splits the laser emitted by the structured light projection module into the first laser light and thesecond laser light having different directions, and the reflecting portion of the optical component can further change the optical paths of the first laser and the second laser, thereby expanding theprojection range of the structured light projection module.
Description
technical field [0001] The present invention relates to the technical field of optics and electronics, and more specifically, to a structured light projection module, an image acquisition device and electronic equipment. Background technique [0002] In the prior art, the image acquisition device usually uses the structured light projection module to project the structured light to the target object, and then uses the image acquisition device to collect the structured light modulated by the target object to obtain the depth image of the target object. When there are too many target objects Or when the volume is large, the structured light projection module can only project to part of the target object, so that the complete depth image of the target object cannot be obtained. Contents of the invention [0003] Embodiments of the present invention provide a structured light projection module, an image acquisition device, and electronic equipment. [0004] The structured lig...
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IPC IPC(8): G02B27/42G02B27/14
CPCG02B27/14G02B27/4205
Inventor 周奇群
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD