Supercharge Your Innovation With Domain-Expert AI Agents!

Projection lens

A projection lens and projection technology, applied in the field of projection lenses, can solve the problems that the projection lens cannot meet the requirements of miniaturization, large field of view, large aperture, etc.

Pending Publication Date: 2022-07-12
SINTAI OPTICAL SHENZHEN CO LTD +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a projection lens with a small volume, a large field of view, and a wide Smaller values, but still have good optical properties

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
  • Projection lens
  • Projection lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] The invention provides a projection lens, comprising: a first lens with refractive power; a second lens with refractive power; a third lens with refractive power; a fourth lens with refractive power; and a fifth lens with negative refractive power, the fifth lens includes a concave surface facing The image source side; wherein the first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged along the optical axis from the projection side to the image source side; wherein the second lens and the third lens are There is no air space therebetween, and the combination of the second lens and the third lens has positive refractive power.

[0034] Please refer to Table 1, Table 2, Table 4, Table 5, Table 7, Table 8, Table 10, Table 11, Table 13 and Table 14 below, among which Table 1, Table 4, Table 7, Table 10 and Table 14 Thirteen are the relevant parameters of each lens according to the first embodiment to the fifth embodiment of...

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 projection lens comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens has refractive power. The second lens has negative refractive power. The third lens element has refractive power. The fourth lens element has refractive power. The fifth lens element has negative refractive power and includes a concave surface facing the image source side. The first lens, the second lens, the third lens, the fourth lens and the fifth lens are sequentially arranged from the projection side to the image source side along the optical axis. Wherein the second lens and the third lens are glued, and the combination of the second lens and the third lens has positive refractive power.

Description

technical field [0001] The present invention relates to a projection lens. Background technique [0002] In addition to the development trend of today's projection lenses, in addition to the continuous development of miniaturization and large field of view, in order to improve the brightness of the projector, the projection lens needs to have a larger aperture. The known projection lenses can no longer meet the current needs. A projection lens with a new architecture can meet the needs of miniaturization, large field of view, and large aperture at the same time. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a projection lens with a small volume, a large field of view, The value is small, but still has good optical performance. [0004] The technical solution adopted by the present invention to solve the technical problem is to provide a projection lens including a first lens, a second lens, a third lens, a fou...

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): G02B13/00G02B13/06G02B13/18G03B21/14
CPCG02B13/0045G02B13/006G02B13/06G02B13/18G03B21/142
Inventor 王智鹏
Owner SINTAI OPTICAL SHENZHEN CO LTD
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