Active laser infrared complex coaxial common-aperture imaging optical system

Abstract

The invention discloses an active laser infrared complex coaxial common-aperture imaging optical system, and the system comprises a primary lens group, a secondary lens group, a rolling lens group, abias lens group, a laser lens group and an infrared lens group, wherein the primary and secondary lens group comprises a laser and infrared shared optical hood, a laser and infrared shared secondary lens, a first laser and infrared shared correction lens, a second laser and infrared shared correction lens and a laser and infrared shared primary reflector; the rolling lens group comprises a first turning reflector, a correction lens, an L-shaped optical flat and a correction lens. According to the invention, an active laser infrared composite imaging mode is adopted, so the advantages of long infrared imaging guide action distance, large view field, high sensitivity and high resolution can be brought into full play; target reflection laser echo intensity and distance information can be obtained by combining laser active imaging, so the false alarm rate is effectively reduced, and the anti-interference capability of the seeker and the detection capability of a stealth / weak target are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of dual-mode composite optical systems for infrared imaging and laser scanning imaging, and in particular relates to an active laser infrared composite coaxial common-aperture imaging optical system. Background technique [0002] The existing imaging optical system is an infrared optical system and an active laser optical system, which exist independently and are not connected to each other. It is difficult to meet the requirements of compact space structure and miniaturization of the seeker, and there are high false alarm rates and guidance problems. The head anti-jamming ability and the detection ability of stealth / weak targets are insufficient. Contents of the invention [0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide an active laser infrared composite coaxial common aperture imaging optical system, which adopts the active laser...

AI Technical Summary

Problems solved by technology

[0002] The existing imaging optical system consists of the infrared optical system and the active laser optical system, which exist independently and are not connected to each other. It is difficult to meet the requirements of the seeker head for compact space structure and miniaturization, and there are high false alarm rates and guidance problems. Insufficient head anti-jamming capability and stealth / weak target detection capability

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