Multi-spectral common-aperture optical system

Abstract

The invention discloses a multi-spectral common-aperture optical system. The multi-spectral common aperture optical system comprises a window for light incidence and light emergence, and a scanning system arranged at the rear end of the window; scanned target light enters an optical signal separation detection system through an afocal telescopic system or a wide-field-of-view plugging lens; the optical signal separation detection system includes a laser detection subsystem for transmitting and receiving laser beams, an infrared detection subsystem and a visible light detection subsystem; after entering the optical signal separation detection system, the light is split by a combined dichroic mirror; and the split light is detected by the laser detection subsystem, the infrared detection subsystem and the visible light detection subsystem respectively. The multi-spectral common-aperture optical system provided by the invention is a detection optical system enabling light integration of laser, infrared and visible light in a plurality of bands. The optical system is compact in structure and can meet requirements for miniaturization and multi-functionalization of optoelectronic systems.

Description

technical field [0001] The invention relates to the fields of optoelectronics and optical design, in particular to a multi-spectral common-aperture optical system. Background technique [0002] The photoelectric aiming system is one of the focuses of the current new aircraft research. The photoelectric aiming system generally includes IRST (Infra-Red Search and Track, infrared search and track) system, long-distance reconnaissance and positioning system and other systems. [0003] IRST systems are commonly used to detect and track infrared radiation emitted by targets such as jets and helicopters. The IRST system here is generally passive because, unlike radar or optical detection or ranging systems, the IRST system does not transmit or emit any radiation. However, some IRST systems can be combined with laser ranging systems that can provide information on the location of the target object, making the search and tracking of the target more precise. Therefore, the IRST syst...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a multi-spectral common-aperture optical system to solve the technical problem that the optical system is difficult to be integrated to meet the requirements of multi-function and miniaturization

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