Unlock instant, AI-driven research and patent intelligence for your innovation.

Projection lens and projection imaging system

A technology of projection lens and image, which is applied in the field of laser projection, can solve the problems of large size of projection lens, and achieve the effect of reducing the number of use, quantity reduction, and high resolution

Active Publication Date: 2020-06-16
QINGDAO HISENSE LASER DISPLAY CO LTD
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a projection lens and a projection imaging system, which can solve the problem of a large projection lens. The technical solution is as follows:

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 lens and projection imaging system
  • Projection lens and projection imaging system
  • Projection lens and projection imaging system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than 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.

[0039] Please refer to figure 1 , which shows a schematic diagram of an implementation environment related to the projection lens provided in some embodiments of the present invention. The implementation environment may include: a light valve 10 , a Total Internal Reflection (English: Total Internal Reflection, TIR for short) prism 20 , and a projection lens 40 . Wherein, the light valve is used to generate an image beam when it is ill...

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 relates to a projection lens and a projection imaging system, and belongs to the field of laser projection. The projection lens comprises a refraction system and a reflection system which are sequentially arranged in an incident transmission direction of an image light beam and share the same optical axis. The refraction system is used for refracting the image light beam entering therefraction system into the reflection system. The reflection system is used for reflecting the image light beams output by the refraction system to a projection screen; the refraction system comprises a triple bonding lens and a double bonding lens. According to the invention, the volume of the projection lens is reduced while the projection lens has relatively high resolution. A projection lensdesign is provided.

Description

technical field [0001] The invention relates to the field of laser projection, in particular to a projection lens and a projection imaging system. Background technique [0002] Laser display projection technology is a new type of projection display technology currently on the market. For laser projectors using this technology, the projection lens is one of the core components of the laser projector. The projection lens is very important from design to processing. [0003] In order to achieve higher image quality (such as 4K image quality), the current projection lens needs to have higher resolution, especially for ultra-short-focus lenses, the throw ratio is small, and the design complexity of the lens is higher. The number of lenses required is also very large. For example, the number of ultra-short-focus lenses currently on the market generally ranges from about 20 lenses. However, a large number of lenses not only makes processing and assembling more complex, but also ma...

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): G02B13/00G02B13/18G03B21/28
CPCG02B13/00G02B13/18G03B21/28
Inventor 阴亮罗超马铭晨
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
PatSnap Eureka logo

PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.

X (Twitter)LinkedInYouTubeSubstack

© 2026 PatSnap. All rights reserved. 

Terms of Service

 | 

Privacy policy

 | 

Modern Slavery Act Transparency Statement