COAXIAL FOUR-REFLECTION OPTICAL SYSTEM FOR VISIBLE LIGHT LONG-WAVE INFRARED COMMON-APERTURE IMAGING

摘要

A coaxial four-reflection optical system for visible light long-wave infrared common-aperture imaging, the system comprising a main reflecting mirror (1), a first transmitting mirror (2), a third reflecting mirror (3), a fourth reflecting mirror (4), a second transmitting mirror (5), a third transmitting mirror (6) and a fourth transmitting mirror (7). The system belongs to the technical field of optical systems, and solves the technical problems that the axial length compactness and the imaging quality of a visible light/infrared composite imaging system need to be improved. The optical system has the imaging functions for all colors, visible light multi-spectrum and long-wave infrared visible light, reduces the requirements of a space remote sensing device on ground illumination conditions, realizes all-time space optical remote sensing reconnaissance and dynamic monitoring, improves the functional density and cost performance ratio of the space optical load, has a compact structure, low distortion and good stray light inhibition, and is convenient to process, assemble and adjust.