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

Refractive projecting unit possessing light filter

A technology of projection device and filter film, applied in projection devices, optics, optical components, etc., can solve problems such as difficult to identify information, blurred images, poor display quality, etc.

Inactive Publication Date: 2005-01-26
吕兴增 +1
View PDF0 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the real image projected in this way will be directly interfered by external light
In particular, the incident sunlight during the day often causes insufficient contrast of the image projected by the head-up display device, and the generation of white fog-like images makes it difficult for users to recognize the information displayed on the head-up display device
[0004] In addition, the traditional projection device forms a display device that projects a real image in the eyes. When the user's head moves (for example, when a car moves), the image will be blurred or severely shaken due to ghosting and Doppler Effect. So the display quality is poor

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
  • Refractive projecting unit possessing light filter
  • Refractive projecting unit possessing light filter
  • Refractive projecting unit possessing light filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In the refraction projection device of the present invention, the filter film is preferably interposed between the two refractor mirror groups and the display unit; the refraction projection device of the present invention preferably also includes a light source for providing light for display unit; the display unit of the refraction projection device of the present invention is preferably integrated with the light source; the display unit is not limited, preferably a vacuum fluorescent display (VFD); the function of the refracting mirror group is not limited, soft Preferably, it has the functions of concentrating light and magnifying images; the refracting lens group preferably has at least one convex lens, and the refracting lens group is used to deflect the light of the display unit and simultaneously enlarge the light passing through the refracting lens group. Image; the refracting mirror group is preferably two single-convex lenses, and the curvature of the two sing...

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

A refraction projection apparatus with filtering film comprises a display unit; a refractor set to polarizedly refract the passing or reflected light from the display unit; a filtering film close to the refractor set; a virtual image forming set to reflect or refract the light source through the refractor set and form reflection light into a virtual image; the refractor set is located between the display unit and virtual image forming set; the refractor set is at an angle Y with the display unit, which is more than zero and less than ninety degrees.

Description

technical field [0001] The invention relates to a refraction projection device, especially a refraction projection device suitable for transportation vehicles. Background technique [0002] The head up display (head up display) projects important driving information at a position close to the eyes looking forward, so that the driver of a traffic vehicle (such as a car) does not need to look down at the dashboard and ignore the traffic ahead during driving. situation, reducing the possibility of accidents. It has been widely used in automobiles and aircrafts. [0003] The known head-up display device is placed in the space above the dashboard of the car, and is projected onto the windshield of the vehicle to form a real image. However, the real image projected in this way will be directly interfered by external light. In particular, the incident sunlight during the day often causes insufficient contrast of the image projected by the head-up display device, and also include...

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): G02B27/02G03B21/00
Inventor 吕兴增胡锦标
Owner 吕兴增
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