Check patentability & draft patents in minutes with Patsnap Eureka AI!

Optical structure of LCD projector, projector and P light and S light conversion method

An optical structure and projector technology, applied in optics, instruments, projection devices, etc., can solve problems such as low light efficiency, low uniformity, and light clutter

Pending Publication Date: 2020-02-07
兴光谱科技成都有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the above-mentioned deficiencies, the inventor of the present invention through long-term exploration attempts and repeated experiments and efforts, continuous reform and innovation, proposed a kind of optical structure of LCD projector, solved the existing single LCD projector Low uniformity, low light efficiency and messy light in lighting

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
  • Optical structure of LCD projector, projector and P light and S light conversion method
  • Optical structure of LCD projector, projector and P light and S light conversion method
  • Optical structure of LCD projector, projector and P light and S light conversion method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] like figure 1 Shown: the technical problem to be solved in the present invention is to provide a kind of novel LCD projector optical structure, this structure is by LED array 1, with one-to-one corresponding primary lens 2 array and secondary lens 3 array, 1 / 4 wave plate 4. Reflective polarizer 5, liquid crystal screen 6, Fresnel lens 7, mirror 8 and lens 9 are composed, and the above components are arranged in sequence. Among them, the primary lens adopts a convex lens, and the secondary lens adopts a lamp cup type collimating and uniform light lens. The included angle between its Fresnel lens 7 and the mirror 8 is 45°. The secondary lens 3 array, the 1 / 4 wave plate 4, the liquid crystal screen 6, and the Fresnel lens 7 are parallel, and the lens 9 and the liquid crystal screen 6 are vertical.

[0034] Reflective polarizer 5 described in the present embodiment is not parallel to liquid crystal screen 6 and 1 / 4 wave plate 4, but has a small angle, as figure 1 shown...

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

PropertyMeasurementUnit
Angle of incidenceaaaaaaaaaa
Login to View More

Abstract

The invention discloses an optical structure of an LCD projector, the projector and a P light and S light conversion method. The structure is composed of an LED array, a primary lens array, a lamp cuptype collimating and light equalizing lens array, a 1 / 4 wave plate, a reflective polarizer, a liquid crystal screen, a Fresnel lens, a reflector and a lens, wherein the primary lens array and the lamp cup type collimating and light equalizing lens array are in one-to-one correspondence, and the above components are arranged in sequence. Thus, the problems of low uniformity, low lighting effect and messy light of the existing single LCD projector in illumination are solved.

Description

technical field [0001] The invention belongs to the technical field of projector application, and in particular relates to an optical structure of an LCD projector. Background technique [0002] Existing single LCD projectors use an integrated LED light source, use a single condenser lens or reflective funnel to simply gather light, irradiate it to a Fresnel lens, and then illuminate it to the LCD screen. The images displayed on the LCD screen are converged by the Fresnel lens, reflected by the mirror, passed through the lens, and projected on the screen. [0003] The structure of the illumination part of the existing single LCD projector is simple, and the light collimation degree is low. There is no P light and S light conversion function, so the light efficiency is low, resulting in low brightness and poor uniformity of single LCD projectors. [0004] In recent years, some people have added a 1 / 4 wave plate and a reflective polarizer between the Fresnel lens and the LCD...

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): G03B21/20
CPCG03B21/2013G03B21/2033G03B21/2066G03B21/2073G03B21/208
Inventor 徐逸
Owner 兴光谱科技成都有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com