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

A cooled mid-wave infrared step-by-step zoom tracking lens

A step-by-step zoom and cooling technology, applied in the optical field, can solve the problems of large number of lenses, long movement stroke, complex structure, etc., and achieve the effect of good image quality, short zoom stroke, and improved signal-to-noise ratio

Active Publication Date: 2017-02-22
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has a large number of lenses and a relatively complex structure; the latter has a long movement stroke and a complex structure

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
  • A cooled mid-wave infrared step-by-step zoom tracking lens
  • A cooled mid-wave infrared step-by-step zoom tracking lens
  • A cooled mid-wave infrared step-by-step zoom tracking lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] see Figure 1-6 , the present invention proposes a cooling type mid-wave infrared step-by-step zoom tracking lens, in which an objective lens group and a projection lens group are sequentially arranged along the optical axis from the object side to the image side; , fixed group, and zoom group; the objective lens group, focusing lens, fixed group, and zoom group are on the same optical axis, the focusing lens and zoom group can move along the optical axis, and the positions of the objective lens group and the fixed group on the optical axis remain unchanged; The focusing mirror includes a third meniscus mirror 3 with positive dioptric power bent toward the object side; the fixed group includes a fourth meniscus mirror 4 with positive dioptric power bent toward the image side and a double dioptric diopter with positive dioptric power arranged in sequence along the light propagation path Convex lens 6; The zoom group includes a biconcave lens 5 with negative dioptric powe...

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 refrigerating medium wave infrared graded zooming tracking lens. The lens is provided with an objective lens group and a projection lens group sequentially from an object space to an image space along an optical axis; the projection lens group is sequentially provided with a focusing lens, a fixing group and a zooming group along a light ray propagation path; the objective lens group, the focusing lens, the fixing group and the zooming group are located in the same optical axis; the focusing lens and the zooming group can move along the optical axis; and the positions of the objective lens group and the fixing group on the optical axis are unchanged. The refrigerating medium wave infrared graded zooming tracking lens has the advantages of stable lens surface, better imaging quality, shorter zooming stroke, and simple and reliable realization of a mechanical structure.

Description

technical field [0001] The invention belongs to the field of optics and relates to a tracking lens, in particular to a cooled mid-wave infrared step-by-step zoom tracking lens. Background technique [0002] With the rapid development of infrared technology and TV tracking technology, compared with the visible light band, its advantages in target tracking in terms of reliability, tracking distance and environmental adaptability are very obvious, so it is more and more widely used. [0003] As an important part of the mid-wave infrared TV tracking system, the infrared zoom lens can zoom in and out of the target in real time during the tracking process, adapt to the scene, and is easy to use. It is especially used more and more in frontier defense and forest fire prevention. In addition to the requirements of clear imaging quality during zooming, small distortion of the full field of view (<1%), and a small number of lenses (high transmittance, low cost), the lens is also re...

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): G02B15/14
CPCG02B15/14
Inventor 李刚段晶姜凯闫佩佩刘凯单秋莎
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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