Lamp optical system for projected display of 3-LCOS (Liquid Crystal On Silicon) laser

An optical system and display lighting technology, which is applied in the field of optics, can solve problems such as the complexity of the design process, and achieve the effects of reducing light energy loss, improving the uniformity of lighting spots, and reducing the volume of the system

Inactive Publication Date: 2012-07-25
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
View PDF12 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If the fly-eye lens group is used as the homogenizing device, it is necessary to ensure that the light beam after the light source is shaped as a near-collimated beam is projected onto the fly-eye lens. The fly-eye lens needs to be designed together with the follow-up system according to the mechanical structure of the li...

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
  • Lamp optical system for projected display of 3-LCOS (Liquid Crystal On Silicon) laser
  • Lamp optical system for projected display of 3-LCOS (Liquid Crystal On Silicon) laser
  • Lamp optical system for projected display of 3-LCOS (Liquid Crystal On Silicon) laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0038] The 3-LCOS laser projection display lighting optical system provided by the present invention is different from the previous projection lighting optical structure. , the illumination optical system simplifies the optical structure, reduces the volume of the system, and improves the utilization rate of light energy of the system.

[0039] Such as figure 1 As shown, what the present invention provides is a 3-LCOS laser projection display illumination optical system with an integrated surface light source module. , Polarization and light combining prism system. Specifically, the system is composed of three optical paths of RGB. Considering the position of the 3-LCOS chip, the three optical paths of RGB are composed ...

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 lamp optical system with an integrated area light source module for projected display of 3-LCOS (Liquid Crystal On Silicon) laser. The system comprises a red light path, a blue light path and a green light path which are formed by two independent light paths, wherein light generated by a red light source projects needed light spots on an LCOS chip through one independent light path, and light generated by blue and green light sources share the other independent light path to project the needed light spots on the LCOS chip. The lamp optical system disclosed by the invention is different from the conventional projection lighting optical structure, and the area light source module of the lamp optical system has the functions of beam shaping and light spot homogenizing simultaneously, so that under the circumstance of same power output, the optical structure of the optical system is simplified, the system volume is reduced, and the efficiency for solar energy utilization of the system is enhanced.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a 3-chips-liquid crystal on silicon (3-LCOS) laser projection display illumination optical system. Background technique [0002] The light source in projection display is an important part of the display system. Its luminous efficiency, luminous form, and light source shape, spectrum, and life all directly determine the quality of the projection display system. In the color projection display, the laser is used as the red, green and blue (RGB) three-color light source, which has high light source efficiency, good image layering, high color saturation, low brightness and high contrast. Laser display has become the development direction and mainstream trend of display technology in the future. [0003] In the existing lighting optical path, the light source needs to pass through the beam shaping system, then through the spot homogenization device—usually using a compound eye or i...

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): G03B21/20G02B27/09G02B27/48G02B27/28F21V13/00
Inventor 董辉张运方李慧方青
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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