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Control method and control device for laser projection module and electronic device

A technology of laser projection and electronic devices, which is applied in the field of imaging, can solve the problems of fragile optical components and user injury, and achieve the effect of avoiding the danger of direct laser radiation on the human body and improving safety

Inactive Publication Date: 2018-07-24
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the optical components are relatively easy to break, the laser emitted by the infrared laser emitter may directly hit the human body, especially the eyes of the person when unlocking the face, causing great harm to the user.

Method used

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  • Control method and control device for laser projection module and electronic device
  • Control method and control device for laser projection module and electronic device
  • Control method and control device for laser projection module and electronic device

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Embodiment Construction

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, are only for explaining the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention.

[0056] In describing the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front ", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the e...

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PUM

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Abstract

The invention discloses a control method for a laser projection module. Laser emitted by the laser projection module is transmitted to the outside through a cover board assembly, and the cover board assembly comprises a conducting part for outputting an electric signal after being powered on. The control method comprises the steps of: acquiring the electric signal; judging whether the electric signal is in a preset range; and when the electric signal is not in the preset range, controlling the laser projection module to be closed or controlling the laser projection module to reduce emission power. The invention further discloses a control device for the laser projection module and an electronic device. According to the control method and control device for the laser projection module and the electronic device which are disclosed by the embodiment of the invention, whether the laser projection module works abnormally is judged by the electric signal output by the conducting part of thecover board assembly, so that when working abnormally, the laser projection module can be controlled to be closed or reduce emission power, thereby avoiding a danger that the laser emitted by the laser projection module directly irradiates a human body, and improving safety of the laser projection module.

Description

technical field [0001] The invention relates to the field of imaging technology, in particular to a control method, a control device and an electronic device of a laser projection module. Background technique [0002] The structured light camera uses the laser projection module to emit laser light, thereby assisting the infrared camera to obtain structured light images. The energy of the laser emitted by the laser projection module is attenuated after passing through optical elements (such as collimation elements and / or diffractive optical elements (DOE)), so as to avoid harm to the human body. However, since the optical element is relatively easy to break, the laser emitted by the infrared laser transmitter may directly hit the human body, especially the eyes of the person when unlocking the face, causing great harm to the user. Contents of the invention [0003] Embodiments of the present invention provide a control method, a control device and an electronic device for ...

Claims

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Application Information

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IPC IPC(8): H04N13/254H04N13/204H04N5/225G06F3/041
CPCG06F3/041H04N23/56
Inventor 白剑
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD