Miniaturized continuous zoom camera lens with large field of view

A camera lens, zoom technology, applied in installation, optics, instruments, etc., can solve the problems of high-precision camera mismatch, limited observation ability, low resolution, etc., to achieve no image plane jump, good coaxiality, volume small effect

Active Publication Date: 2014-10-08
FUJIAN FORECAM OPTICS CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical structure of the traditional mechanically compensated zoom lens consists of four components: the front fixed group, the zoom group, the compensation group and the rear fixed group. , low resolution, mismatch with high-precision cameras and other shortcomings, the observation ability is very limited

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
  • Miniaturized continuous zoom camera lens with large field of view
  • Miniaturized continuous zoom camera lens with large field of view
  • Miniaturized continuous zoom camera lens with large field of view

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as figure 1 As shown, a large field of view miniaturized continuous zoom camera lens, the optical structure of the lens is respectively provided with a front fixed group A with a positive focal power and a negative focal power along the incident direction of the light from left to right. zoom group B, variable diaphragm assembly C, rear fixed group D with positive refractive power, and compensation group E with positive refractive power. The front fixed group A is sequentially provided with negative crescent lens A-1, Biconvex lens A-2 and positive crescent lens A-3, said variable power group B is provided with biconcave lens B-1 and the first cemented group closely connected by biconcave lens B-2 and positive crescent lens B-3, said The rear fixed group D is sequentially provided with biconvex lens D-1 and negative crescent lens D-2, and the compensation group E is sequentially provided with biconvex lens E-1 and a second lens closely connected by biconvex lens E-...

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 miniaturized continuous zoom camera lens with a large field of view. The optical structure of the lens is respectively provided with a front fixed group A with a positive focal power and a negative focal power along the incident direction of the light from left to right. zoom group B, variable diaphragm assembly C, rear fixed group D with positive refractive power, and compensation group E with positive refractive power. The front fixed group A is sequentially provided with negative crescent lens A-1, Biconvex lens A-2 and positive crescent lens A-3, said variable power group B is provided with biconcave lens B-1 and the first cemented group closely connected by biconcave lens B-2 and positive crescent lens B-3, said The rear fixed group D is sequentially provided with biconvex lens D-1 and negative crescent lens D-2, and the compensation group E is sequentially provided with biconvex lens E-1 and a second lens closely connected by biconvex lens E-2 and biconcave lens E-3. glue group. The lens has the advantages of large field of view and small size, and has functions such as continuous electric zoom, electric focus, and electric dimming.

Description

technical field [0001] The invention relates to a miniaturized continuous zoom camera lens with a large field of view. Background technique [0002] At present, monitoring camera lenses suitable for short and medium distances require a large observation range, small size, light weight, and high definition. They can not only perform panoramic observation of large areas with small magnifications, but also zoom in and observe small areas with large magnifications. The optical structure of the traditional mechanically compensated zoom lens consists of four components: the front fixed group, the zoom group, the compensation group and the rear fixed group. , low resolution, mismatch with high-precision cameras and other shortcomings, the observation ability is very limited. Contents of the invention [0003] The present invention makes improvements to the problems existing in the above-mentioned prior art, that is, the technical problem to be solved by the present invention is ...

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): G02B15/173G02B7/04
Inventor 刘辉张清苏苏魏华
Owner FUJIAN FORECAM OPTICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap