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

Optical lens

An optical lens and lens technology, applied in the field of optical lens, can solve problems such as complex lens structure, low resolution, and inability to meet the needs of camera equipment

Active Publication Date: 2017-01-11
ZHEJIANG DAHUA TECH CO LTD
View PDF13 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An embodiment of the present invention provides an optical lens to solve the problems of complex structure, low resolution and poor optical performance of the existing lens, which cannot meet the needs of imaging equipment with higher imaging requirements.

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 lens
  • Optical lens
  • Optical lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention adopts first lens group and second lens group to form a kind of optical lens, and first lens group comprises 3 lenses (lens 1, lens 2, lens 3), and second lens group comprises 6 lenses (lens 4~lens 9). By adopting nine lenses with specific structural shapes and reasonable focal power distribution, the optical lens of the embodiment of the present invention can achieve tens of millions of pixels of resolution in a relatively compact structure. In addition, due to the simplicity of the overall structure, each lens adopts The spherical surface is involved, the cost of the glass material is low, and the processing performance is good, and the optical lens of the present invention also has a relatively low cost.

[0029] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain...

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 an optical lens for a simple lens structure to improve the resolution. The optical lens is orderly provided with a first lens group with negative focal power and a second lens group with positive focal power along a direction from an object side to an image side. The first lens group comprises a lens 1 with negative focal power, a lens 2 with negative focal power, and a lens 3 with positive focal power. The second lens group comprises a lens 4 with negative focal power, a lens 5 with positive focal power, a lens 6 with positive focal power, a lens 7 with positive focal power, a lens 8 with positive focal power, and a lens 9 with negative focal power. The effective focal length of the optical lens and the effective focal length of the lens 1 satisfy a first setting relation, and the effective focal length of the optical lens and the effective focal length of the second lens group satisfy a second setting relation. In this way, since the structure is simple, the optical lens of the embodiment of the invention has a low cost.

Description

technical field [0001] The invention relates to the technical field of lens display, in particular to an optical lens. Background technique [0002] With the development of the security monitoring industry, 1080P high-definition video has become the mainstream, but the goal pursued by the security monitoring lens is always to improve image clarity and image quality, and 4K technology came into being; in recent years, data transmission technology, data The technological innovation and breakthrough of storage technology, image processing technology and high-definition TV display technology have made it possible to realize ultra-high-definition video surveillance with 4K resolution, and it will become the future development trend, which requires the lens (lens system) to have Higher resolution to meet the imaging requirements of 4K cameras. [0003] At present, the resolution level of existing lenses in visible light mode can only meet the needs of cameras with less than 5 mil...

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): G02B13/00
Inventor 王丰刘凯丁洪兴张兴明
Owner ZHEJIANG DAHUA TECH CO LTD
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