Optical system for photoelectric pod

Abstract

The invention discloses an optical system for a photoelectric pod. The optical system comprises a laser common aperture system and a signal transmitting and receiving system, wherein the laser common aperture system transmits light which passes through a first polarization splitting prism to the signal transmitting and receiving system, and the signal transmitting and receiving system is used for performing passive detection on received visible light and infrared light and transmitting echo signals which are formed by light that has irradiated the surface of a target to the first polarization splitting prism; the optical system further comprises an echo receiving system which is arranged on a reflecting optical light of the echo signals which are reflected along the first polarization splitting prism; the echo receiving system includes a second half wave plate and a second polarizing beam splitting prism which are arranged sequentially; a laser ranging detector is arranged on the transmission optical axis of the second polarizing beam splitting prism; and a laser angle tracking detector is arranged on the reflection optical axis of the second polarizing beam splitting prism. With the optical system for the photoelectric pod of the invention adopted, the influence of the back-scattered noises of the optical system can be effectively eliminated, and the detection accuracy of the system can be improved.

Description

technical field [0001] The present invention relates to the field of noise elimination of optical systems, in particular, to an optical system for optoelectronic pods. Background technique [0002] With the development of science and technology, optoelectronic pods show a trend of miniaturization, light weight and multi-functionality, which requires the optical system in the pod to have high integration and high detection performance, and the multi-spectral common aperture technology It can well solve the contradiction between system miniaturization and multi-functionalization, and has become the main technical means of advanced optical pods. Multi-spectral bands share the same aperture, such as the visible light band, the infrared light band and the laser share the same aperture to realize the reception and emission of visible light signals, infrared light signals and laser signals. Among them, the visible light and infrared light band subsystems are passive detection, and...

AI Technical Summary

Problems solved by technology

[0005] The invention provides an optical system for a photoelectric pod to solve the technical problem of low detection accuracy caused by the difficulty in effectively suppressing the backscattering noise of the laser subsystem of the existing common-aperture system

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