Infrared broadband multi-interference compound optical system

Abstract

The invention relates to an infrared broadband multi-interference compound optical system, which belongs to the technical field of infrared and analog simulation. The system comprises an interference optical system formed by a scene generator and an interference collimation optical system, a recombination optical system, a beam expanding element, a beam expanding collimation optical system and a plane mirror, wherein the interference optical system is divided into four paths which are located in the same plane vertical to a principal plane direction and are distributed along a cross direction; infrared radiation generated by the scene generator is collimated through the interference collimation optical system so as to be reflected through the plane mirror, then is recombined through the recombination optical system so as to enter into the beam expanding element, and is incident onto a subsequent coupling mirror through the beam expanding collimation optical system after being subjected to beam expansion; the coupling mirror couples a target optical path and an interference optical path; the coupled optical path is subjected to beam expansion through an objective lens and an ocular lens of a main projection optical system so as to be imaged infinitely, and is matched with an optical system to be tested. The system has the obvious advantages of high coupling efficiency, small size, higher cost performance, and easiness in processing and adjusting.

Description

technical field [0001] The invention belongs to the field of infrared and simulation technology, and relates to an infrared wide-band multi-interference composite optical system, which is suitable for infrared interference simulation optical system for measuring dynamic target recognition and tracking capabilities of infrared short-wave and medium-wave imaging systems. Background technique [0002] With the development of infrared imaging technology, infrared sensing and receiving devices, such as infrared remote sensing, infrared guidance, tracking, and thermal imaging cameras, have become the top priority of military development in various countries. According to the country's military needs, modern infrared imaging systems are becoming more and more complex and sophisticated, so the production costs are also increasing, which makes the battlefield program verification and flight tests for them more and more expensive, and each test obtains Useful information is also very ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the shortcomings of low coupling efficiency, large volume, high price, and difficult processing and adjustment of the current infrared broadband multi-interference composite optical system, the present invention proposes an

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