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

New megapixels wide-angle lens

A wide-angle lens and pixel technology, applied in the field of wide-angle lens systems, can solve the problems of serious distortion increase, unsuitable lens deformation, heavy weight, etc., and achieve the effects of weight reduction, wide optical characteristics, and cost reduction

Active Publication Date: 2012-01-11
NINGBO SUNNY AUTOMOTIVE OPTECH
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the wide-angle security monitoring lens on the market is generally composed of 4 to 6 glass lenses. For example, the wide-angle lens with the Chinese Patent No. 200710085652 is composed of 5 glass lenses. When it exceeds 60°, the distortion will increase seriously, so it is not suitable for applications that require high lens deformation, such as network cameras, video conference systems, etc.

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
  • New megapixels wide-angle lens
  • New megapixels wide-angle lens
  • New megapixels wide-angle lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Embodiments of the present invention will be described in detail below in conjunction with the above-mentioned drawings.

[0034] New megapixel wide-angle lenses such as figure 1 As shown, it is especially used in security monitoring video systems with a field of view ≥ 80°. The wide-angle lens includes a first lens element L1, a second lens element L2, a diaphragm r5, and a third lens element L3 in order from the object side. , the fourth lens element L4, the fifth lens element L5, the color filter GF, and the imaging surface IMA.

[0035] The first lens element L1 is a meniscus glass lens with negative refractive power, both sides are spherical, and convex to the object; the second lens element L2 is a plastic with positive refractive power, both sides are aspherical Lens; the third lens element L3 is a biconvex glass lens with positive power and both sides are spherical; the fourth lens element L4 is a plastic lens with negative power and both sides are biconcave as...

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
refractive indexaaaaaaaaaa
Abbe numberaaaaaaaaaa
refractive indexaaaaaaaaaa
Login to View More

Abstract

A new megapixels wide-angle lens comprises five lenses and a diaphragm; wherein, the lens, from the object space, is orderly provided with a first lens element having meniscus-type lens having negative focal power and projecting to the object space; a second lens element having aspherical lenses having positive focal power; a third lens element having double-convex lens having positive focal power; a fourth lens element having double-convex aspherical lenses having negative focal power; a fifth lens element having lens having positive focal power; the diaphragm is located between the second and third lenses. The invention can realize the wide-angle lens having large relative aperture, small distortion and high resolving power, and can keep the lens in excellent imaging in the wide temperature range of -40 degrees centigrade to +85 degrees centigrade, and is especially suitable for the application of network camera and video conferencing system having higher demand to optics compensation.

Description

technical field [0001] The invention relates to a wide-angle lens system, especially a novel megapixel wide-angle lens suitable for security monitoring, network image and vehicle-mounted image systems. Background technique [0002] At present, the wide-angle security monitoring lens on the market is generally composed of 4 to 6 glass lenses. For example, the wide-angle lens with the Chinese Patent No. 200710085652 is composed of 5 glass lenses. When it exceeds 60°, the distortion will increase seriously, and it is not suitable for applications that require high lens deformation, such as network cameras and video conference systems. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a low-cost, light-weight, small-distortion, large-aperture new type of megapixels that is suitable for higher requirements on lens deformation such as network cameras and video conferencing system...

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 Patents(China)
IPC IPC(8): G02B13/06G02B13/18G02B13/00G02B1/00G02B1/04
Inventor 裘文伟
Owner NINGBO SUNNY AUTOMOTIVE OPTECH
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