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

Bicolor dual-view field infrared imaging optical system

An infrared imaging and optical system technology, which is applied in the field of optical systems, can solve problems such as bulky, large optical system aperture, and difficult installation, and achieve the effects of compact optical structure, small system volume, and fewer lenses

Active Publication Date: 2013-08-28
KUNMING INST OF PHYSICS
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the two existing dual-band thermal imaging systems have the following disadvantages: the former has a complex structure, bulky size, difficult installation, and serious energy attenuation; The common defect is that they are all single-field lenses, which cannot meet the requirements of search and aiming tasks in complex situations

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
  • Bicolor dual-view field infrared imaging optical system
  • Bicolor dual-view field infrared imaging optical system
  • Bicolor dual-view field infrared imaging optical system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The present invention will be described in detail below through embodiments in conjunction with the accompanying drawings.

[0014] as attached image 3 As shown, the two-color two-field-of-view infrared imaging optical system of the present invention is composed of a total of five lenses, the front fixed group 9, the zoom group 10 and the rear fixed group 11, which are determined as the first to the fifth from left to right. Lens, the variable power group 10 moves forward along the axial direction to the front of the primary image plane, forms an objective lens with the front fixed group 9, and realizes a narrow field of view; the variable power group 10 moves backward along the axial direction to the back of the primary image plane, and is fixed Group 11 constitutes a relay group to realize a wide field of view; thereby realizing switching between narrow and wide field of view. The zoom mode of the optical system adopts the zoom group 10 to perform axial translation ...

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 a bicolor dual-view field infrared imaging optical system. The bicolor dual-view field infrared imaging optical system is characterized by consisting of five lenses including a front fixing lens set (9), a multifocal lens set (10) and a rear fixing lens set (11), wherein the front fixing lens set consists of two lenses, the multifocal lens set consists of one lens, and therear fixing lens set consists of two lenses. The multifocal lens set can axially move in front of or behind a primary image surface to realize switching between a wide view field and a narrow view field; in the five lenses, lenses with a binary diffraction surface is used as a second surface of a second lens and a second surface of a fourth lens. The bicolor dual-view field infrared imaging optical system has the advantages of simple and compact structure, small system size and less lenses, can simultaneously performing imaging at a medium wave infrared wave band with wavelength of 4-5 microns and a long wave infrared wave band with wavelength of 8-9 microns while implementing functions of searching (a wide view field of 9 degrees* 6.75 degrees) and aiming (a narrow view field of 3 degrees*2.25 degrees). The system design takes account of miniaturization and lightweight requirement of the infrared system and meets the use technology requirement of the infrared system.

Description

technical field [0001] The invention relates to an optical system, in particular to an infrared dual-color detector dual-view imaging system. Background technique [0002] The infrared optical system is an indispensable part of the infrared thermal imaging system, and its main function is to collect the energy of the target radiation and control the imaging quality. Existing infrared optical systems basically work in a single band, and there are certain limitations in practical applications. The presence of a target is detected or the accuracy of detection decreases. The dual-band infrared optical system can detect targets in the presence of cluttered echoes, distinguish targets from decoys, and disable infrared countermeasures such as smoke, camouflage, and flares. In addition, in order to meet the requirements of aiming and searching within a specific field of view at the same time, a dual-field infrared optical system must be used. Therefore, the research on the two-co...

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): G02B27/00G01J5/08G01J5/54
Inventor 陈吕吉李萍朱继航徐曼陈津津于振龙杨开宇曹凌
Owner KUNMING INST OF PHYSICS
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