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

Projection apparatus and electronic equipment

A technology of projection device and projection module, which is applied to projection devices, instruments, optics, etc., can solve problems such as inconvenience in using small spaces, and achieve the effect of increasing the display screen, being easy to use, and increasing the size.

Inactive Publication Date: 2017-08-04
LENOVO (BEIJING) LTD
View PDF13 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing projection device, in order to realize large-scale screen display, it is necessary to make the distance between the projection module 21 and the screen 23 sufficiently large, which is not convenient for use in a small space

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
  • Projection apparatus and electronic equipment
  • Projection apparatus and electronic equipment
  • Projection apparatus and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, 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 making creative efforts belong to the protection scope of the present invention.

[0035] In the prior art, the lens 22 includes a plurality of optical lenses. When the distance between the projection module 21 and the screen 23 is not changed, the display screen can be fine-tuned by adjusting the focal length of the optical lens, that is, the display screen can be slightly increased or reduced to adjust the clarity of the display screen.

[0036] When the size of the display screen needs to be greatly changed, the size of the di...

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 discloses a projection apparatus and electronic equipment. The projection apparatus comprises a projection module and a lens module; the lens module comprises an optical lens group and a reflector; and light source information emitted from the projection module incidents to the reflector through the optical lens group to be reflected by the reflector and then to be projected to a preset screen plane to form an image, wherein the reflector is used for reflecting the incident light source information to the preset screen plane. According to the technical scheme disclosed in the invention, the optical distance from the light source information emitted from the projection module to the preset screen plane can be increased though the reflection effect of the reflector, so as to further realize image display of relative large dimensions; and meanwhile, by setting the reflection position of the reflector, the optical distance increasing proportion can be set, so that the dimension of the displayed image can be greatly enlarged, and projection of the displayed image with large dimensions can be realized within a relatively small space.

Description

technical field [0001] The present invention relates to the technical field of multimedia devices, and more specifically, to a projection device and electronic equipment. Background technique [0002] A digital mirror device (DMD for short) is an important digital optical device currently used in a projector, which reflects light through tens of thousands of tiny controllable mirrors to form a picture. Currently, the DMD is a core component of a DLP (Digtal Light Processing, digital light processing) projection device. [0003] refer to figure 1 , figure 1 It is a schematic diagram of the working principle of a common projection device in the prior art. The projection module 21 projects the image on the screen 23 after passing through the lens 22 . In the existing projection device, in order to realize a large-size picture display, it is necessary to have a sufficiently large distance between the projection module 21 and the screen 23 , which is not convenient for use in...

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): G03B21/28G02B13/00
CPCG02B13/00G03B21/28
Inventor 李建国
Owner LENOVO (BEIJING) LTD
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