Structured light projection device having automatic focusing device and method thereof

An automatic focusing and projection device technology, applied in the field of photography, can solve the problems of poor speckle uniformity of speckle patterns, dark speckle patterns of speckle projectors, and inability to use

Inactive Publication Date: 2019-08-06
SUNNY OPTICAL ZHEJIANG RES INST CO LTD
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This problem limits the working distance of traditional projectors, and the expected effect can only be achieved by working within a certain distance. For example, the working distance of ordinary speckle projectors is only 0.3M-1.2M. , it will cause the speckle pattern of the speckle projector to be too dark, especially as the distance increases, the uniformity of the s...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Structured light projection device having automatic focusing device and method thereof
  • Structured light projection device having automatic focusing device and method thereof
  • Structured light projection device having automatic focusing device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The following description serves to disclose the present invention to enable those skilled in the art to carry out the present invention. The preferred embodiments described below are only examples, and those skilled in the art can devise other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

[0029] Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a structured light projection device having an automatic focusing device and a method thereof. The device comprises a structured light projector and an automatic focusing device. The structured light projection device includes a laser emitter for emitting light and an optical system for converting the light emitted by the emitter into light having a particular pattern. Theautomatic focusing device includes a motor and a motor controller. When motor controller drives the motor to move, the motor can drive the optical system to move so as to adjust the relative positionbetween the laser emitter and the optical system, thereby improving the uniformity of the projected pattern.

Description

technical field [0001] The invention relates to the technical field of imaging, in particular to a structured light projection device of an autofocus device and a method thereof. Background technique [0002] With the maturation of projector technology and the rapid development of the 3D camera industry, ordinary projectors can no longer meet the needs of the current market. For example, camera modules and speckle projectors work together to achieve 3D reconstruction and face recognition Both are widely used, but limited by the attenuation of the luminous intensity of fixed-focus speckle projectors with the increase of working distance, the consistency of speckle spots at different working distances is poor. [0003] A traditional projector, such as a speckle projector, usually consists of a laser emitter and an optical system, wherein the laser emitter is used to emit light, and the optical system is used to convert the light emitted by the laser emitter into is a speckle ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G02B27/48
CPCG02B27/48
Inventor 龚艳芸周炳葛晨阳杨超胡增新
Owner SUNNY OPTICAL ZHEJIANG RES INST CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap