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

Projecting unit

A projection device and projection screen technology, applied in projection devices, optics, instruments, etc., can solve the problems of complex, expensive and wasteful projection devices.

Inactive Publication Date: 2006-07-05
林志雄
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing projection devices are relatively complex and expensive, and it would be a waste if they are only used to project simple images such as text, patterns, and digital symbols.

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
  • Projecting unit
  • Projecting unit
  • Projecting unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] see figure 1 shown. The first embodiment of the projection device of the present invention mainly includes a lens body 10, which can be made of transparent materials such as glass, acrylic, and plastic. The lens body 10 is in the shape of a sheet and has a plurality of lens units 11 . The plurality of lens units 11 can be arranged in an array. A plurality of lens units 11 are divided into several groups, and each group of lens units 10 has a different light projection angle, which can respectively focus the light emitted by the light source body 20 and change the traveling direction of the light, and project it on the projection screen 30 for direct collection. Multiple light spots display images. As in this embodiment, a plurality of light spots projected through the lens body 10 are collected respectively to display images 31 , 32 such as “A” and “B” of relatively bright English characters.

[0021] The lens body of this embodiment can also make the light projecte...

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 is a projector, comprising a lens main body having plural lens units, each of which has a shape for making a light projected at a specified angle, respectively focusing the lights irradiating the main body and changing their advancing directions to make them projected on a projection screen, and directly collecting the light spots of these lens units to compose the set brighter video; or collecting plural light spots to compose a brighter background so as to display the set darker reverse video in the brighter background; or projecting the amplified videos of video units corresponding to the lens units. The invention is simple in structure and easy to manufacture.

Description

technical field [0001] The present invention relates to a projection device, especially a projection device that projects an image using a lens with a plurality of projection units. Background technique [0002] A general projection device, such as the projector disclosed in Taiwan Invention Patent No. 222549 published on October 21, 2004, includes a light bulb (Lamp) for emitting a light; an optical engine for receiving the light and outputting A picture is projected onto a screen outside the projector. [0003] General projection devices often use an array of lenses to condense light or change the direction of light. For example, the Chinese Taiwan New Patent No. 245445 published on October 1, 2004 discloses an image display device and a projector with a lens array unit. The partial lights for dividing the illumination light into many parts are collected separately. Another example is the Chinese Taiwan Invention Patent Announcement No. 594372 published on June 21, 2004,...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/14G03B21/00
Inventor 林志雄
Owner 林志雄
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