A structured light module and mobile terminal

Abstract

The embodiments of the present invention provide a structured optical module and a mobile terminal, wherein the structured optical module comprises a light source assembly, a bracket, a diffusing optical element, a pressure sensor, and a control chip in connection with the light source assembly; the pressure sensor is disposed in a sealed cavity formed by the light source assembly, the bracket andthe diffusing optical element and connected to the control chip; the pressure sensor is configured for monitoring a first air pressure value in the sealed cavity and sending the first air pressure value to the control chip; and when the first air pressure value is less than a preset threshold, the control chip controls the light source assembly to reduce the optical power. In the embodiment of the present invention, the pressure sensor is disposed in the sealed cavity of the structured optical module. When the pressure sensor detects that the first air pressure value in the sealed cavity is less than a preset threshold, the control chip controls the light source assembly to reduce the optical power, thereby effectively avoiding the situation that infrared laser signals cause harm to the human body when the structured optical module is in an abnormal working state.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to a structured light module and a mobile terminal. Background technique [0002] Infrared laser emitting modules are widely used, such as: face recognition technology, 3D (Three-Dimensions, three-dimensional) scanning, AR (Augmented Reality, augmented reality) and VR (Virtual Reality, virtual reality), etc. However, the invisible light emitted by it will cause harm to human safety during the application process. [0003] If the infrared laser signal generated by the laser light-emitting chip in the infrared laser emitting module directly hits the human body, it may cause harm to the human body. like figure 1 Shown is a structural block diagram of an infrared laser emitting module in the prior art, specifically including: a first laser chip 101 , a first module bracket 102 , a first diffusion plate 103 , and a first circuit board 104 . like figure 2 As shown, it is a st...

AI Technical Summary

Problems solved by technology

[0004] In view of the above problems, embodiments of the present invention provide a structured light module and a mobile terminal to solve the problem that the structured light module may cause harm to the human body under abnormal working conditions

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