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A laser projection device and mobile terminal

A laser projection and laser technology, applied in the direction of using optical devices, measuring devices, projection devices, etc., can solve the problems of laser energy loss, increase power consumption of mobile terminals, etc., and achieve the effect of avoiding loss

Active Publication Date: 2020-04-28
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a laser projection device and a mobile terminal to solve the problem that part of the laser energy is absorbed by the coding shielding structure, resulting in loss of laser energy and increasing the power consumption of the mobile terminal

Method used

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  • A laser projection device and mobile terminal
  • A laser projection device and mobile terminal
  • A laser projection device and mobile terminal

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Embodiment Construction

[0022] 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 some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] see figure 1 , figure 2 and image 3 , which is a schematic diagram of the laser projection device, a schematic diagram of the optical path, and a use state diagram of the first embodiment of the present invention; as shown in the figure, the laser projection device 1 of this embodiment includes a laser light source assembly 10, a coded shielding structure 11 and a light guide structure 12. The laser light source assembly 10 includes a base b...

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Abstract

The invention discloses a laser projection device. The laser projection device comprises a laser light source assembly and a coding shielding structure located on the laser light source assembly. The laser light source assembly is provided with a plurality of light-emitting points facing the surface of the coding shielding structure. The code The shielding structure includes a shielding area with a shielding pattern and a light-transmitting area outside the shielding pattern. The laser projection device also includes a light guide structure located between the laser light source assembly and the coding shielding structure. The light guide structure converts the laser The laser light projected by the light source assembly to the shielding area is guided to the light-transmitting area. By providing a light guide structure on the propagation path of the laser beam projected by the laser light source assembly to the coded shielding structure, the coded shielding structure will not absorb laser energy, avoiding loss of laser energy and increasing power consumption of the mobile terminal.

Description

technical field [0001] The invention relates to the field of laser devices, in particular to a laser projection device and a mobile terminal that improve the utilization rate of light energy. Background technique [0002] In the field of consumer electronics, depth perception technology helps to improve the intelligence level and interaction capabilities of electronic products. Depth perception technology based on structured light active vision mode, such as active projection of graphics through laser graphics projectors and acquisition through image sensors, can be more accurate. Compared with the binocular stereo camera, the structured light active vision mode uses structured light to calibrate the characteristics of the active projected object or projected space, and the obtained depth information is more stable and reliable, and is affected by the ambient light. Small impact. [0003] The current laser image projector irradiates the coded shielding structure through an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/20G03B21/00
CPCG03B21/00G03B21/2033G03B21/2066G02B19/0057G02B19/0014G01B11/25H04N9/3138
Inventor 周华昭肖强林华鑫
Owner VIVO MOBILE COMM CO LTD
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