Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Laser pattern projecting device and method

A projection device and laser technology, applied in display devices, projection devices, optics, etc., can solve the problems that the subtitle screen is large in size, can only be used fixedly, and cannot display graphics and text

Inactive Publication Date: 2007-04-18
OCEAN UNIV OF CHINA
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of subtitle screen is large in size, and it is very inconvenient to install and erect. Generally, it can only be used fixedly.
There are also some devices that use two-dimensional scanning mirrors to project subtitles and graphics, but they use a single laser beam and are mostly used in laser engraving, laser marking, etc. The key is that they cannot display complex graphics and text

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
  • Laser pattern projecting device and method
  • Laser pattern projecting device and method
  • Laser pattern projecting device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] As shown in Fig. 1, the present invention comprises the laser device 6 controlled by the single-chip microcomputer 11, and the scanning mirror 2 on the rotating shaft 5 driven by the servomotor 3 with speed control, it is characterized in that it also includes a housing with a transparent window 8 1. A scanning rotating mirror 2 with at least three reflecting surfaces 10 is installed on the rotating shaft 5 with bearings 4 at both ends, and the laser 6 on the reflecting surface 10 of the scanning rotating mirror 2 installed in the housing 1 and emitted to the rotating shaft 5 is There are at least five lasers arranged in parallel, so that the scanned laser is projected onto the screen 9 .

[0014] The reflective surface 10 of the scanning mirror 2 is an arc-shaped cylindrical surface that makes the light spot formed by the scanning laser light on the screen 9 linear in time and scanning distance to realize uniform scanning.

[0015] The equation of the curved cylinder o...

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 laser pattern projection device and method. It includes SCM controlled laser, scanning tilting mirror, and many parallel lasers. The method includes the following steps: using visual persistence effect to emit the laser from the parallel lasers to the scanning tilting mirror; projecting on the screen after reflecting; using SCM to control emitted laser bright-dark to form static or animate pattern or character. The invention has the advantages of compact structure, simple technology, high display contrast, realizing outdoor long distance projection by night, projecting out laser scroll with animate character or pattern, widely using in indoor outdoor occasions such as exhibition etc.

Description

technical field [0001] The invention relates to a laser pattern projecting device and method with dynamic patterns. Background technique [0002] At present, most subtitle devices used in the market are light-emitting diode dot matrix screens, or light-emitting elements using fixed characters such as neon lights. This kind of subtitle screen has a large volume, and it is very inconvenient to install and erect. Generally, it can only be used fixedly. There are also some devices that use two-dimensional scanning mirrors to project subtitles and graphics, but they use a single laser beam and are mostly used in laser engraving, laser marking, etc. The key is that they cannot display complex graphics and text. Contents of the invention [0003] The object of the present invention is to provide a laser pattern projecting device and method with dynamic patterns, which can display dynamic or static images or characters through laser scanning, so as to make up for the shortcomings...

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): G02B27/18G02B26/12G09F19/18
CPCG03B25/00
Inventor 张凯临刘金涛宋小全
Owner OCEAN UNIV OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com