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

Cooled three-field infrared thermal imager

An infrared thermal imager, three fields of view technology, used in instruments, scientific instruments, measuring devices, etc., can solve the problems of poor detection performance of infrared thermal imagers, and achieve optical coaxiality, high resolution, and volume. small effect

Inactive Publication Date: 2016-05-04
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cooling type three-field infrared thermal imaging camera to solve the problem of poor detection performance of existing infrared thermal imaging cameras

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
  • Cooled three-field infrared thermal imager
  • Cooled three-field infrared thermal imager
  • Cooled three-field infrared thermal imager

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0032] The rear fixed mirror group includes the first fixed mirror 4, the second fixed mirror 5, the third fixed mirror 6 and the fourth fixed mirror 7 arranged on the same optical axis in sequence, and the converging mirror group includes the first converging mirror 12 arranged on the same optical axis in sequence. and the second converging mirror 13; the mirror group includes a mirror group, and the mirror group is composed of the first mirror 8, the second mirror 10 and the third mirror 11 arranged in sequence along the optical path, and the fourth fixed mirror 7 The outgoing light is reflected by the first reflector 8, the second reflector 10 and the third reflector 11 in sequence, and enters the first converging mirror 12. A field stop 9 for passing optical signals is arranged between the first reflector 8 and the second reflector 10 . The detector 14 is arranged on the light path emitted by the second converging mirror 13 .

[0033] Such as figure 2 and image 3 As s...

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 cooled three-field infrared thermal imager comprising an infrared optical system and a detector imaging assembly. F of the infrared optical system is 4, the narrow-field focal length of the optical system is 137mm, the medium-field focal length is 55mm, and the wide-field focal length is 23mm. The optical system comprises an objective lens, a zoom lens, a compensation lens, a rear fixed lens group and a convergence lens group, all of which are coaxially arranged in sequence. Field switching and focusing are implemented by axially moving the zoom lens and the compensation lens. The thermal imager can be applied to a complex environment. In any complex environment, the image contrast and detail resolution can be effectively improved, the effect of image observation can be significantly improved, and high precision in optical coaxiality, angular offset and optical axis consistency and high reliability in high- and low-temperature environments and vibration environments are realized. In addition, the thermal imager has a simple overall structure, the components of the thermal imager are not complicated, and the goal of low weight and small size is achieved.

Description

technical field [0001] The invention relates to a cooling type three-field infrared thermal imager. Background technique [0002] As the best alternative to manned aircraft for surveillance and reconnaissance, drones are attracting significant investment in some countries. As the infrared sensor for UAV payload, its market demand will grow proportionally with UAV. At present, cooled thermal imaging cameras are bulky. Due to the limitations of take-off weight, volume, and space of small and medium-sized UAVs, most of the infrared sensors equipped with them are uncooled thermal imaging cameras, and their detection performance and imaging effects are limited by devices. . [0003] With the wide application of drones in many fields, the demand for cooling thermal imaging cameras with light weight, small size, long detection distance, high resolution, and three fields of view is becoming more and more urgent. For target recognition, the medium field of view is used for target ...

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
IPC IPC(8): G01J5/00G01J5/08
CPCG01J5/00G01J5/0806G01J2005/0077
Inventor 赵菲菲万敏张广伟石鹏潘晓东
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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