Long-focal-length large-view-field miniaturized active athermalization optical system

Abstract

The invention discloses a long-focal-length large-view-field miniaturized active athermalization optical system which comprises a Cassegrain reflection primary mirror, a reflection secondary mirror, a field lens, a collimating mirror, a first folding mirror, a second folding mirror, a first imaging mirror group, a third folding mirror, a second imaging mirror group, a fourth folding mirror, an imaging lens and a detector focal plane. The Cassegrain reflection primary mirror and the reflection secondary mirror form a Cassegrain imaging system, the field lens is arranged between the Cassegrain reflection primary mirror and the reflection secondary mirror, and the field lens is used for compressing the field angle of the collimating mirror and correcting the field curvature of the imaging system; and the collimating lens, the first folding lens, the second folding lens, the first imaging lens group, the third folding lens, the second imaging lens group, the fourth folding lens, the imaging lens and the detector focal plane are sequentially connected through light paths. The system can work in a wide temperature range, the cost of the system is reduced, meanwhile, the space structure of the system is optimized through the turning mirror, and miniaturization is achieved.

Description

technical field [0001] The invention relates to the technical field of photoelectric tracking and aiming imaging, and more specifically, relates to a miniaturized active adiabatic optical system with long focal length and large field of view. Background technique [0002] Beam control and tracking and targeting equipment (ATP for short) is an important part of laser directed energy weapons and multi-functional laser combat vehicles. Multi-level stable imaging tracking of targets. The prior art has the following disadvantages: short focal length, small field of view, large volume, and serious thermal difference. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a miniaturized active adiabatic optical system with long focal length and large field of view, which can work in a wide temperature range, not only utilizing the function of jamming long focal length, but also The field lens is used ...

AI Technical Summary

Problems solved by technology

The existing technology has the following disadvantages: short focal length, small field of view, large volume, and serious thermal difference

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