The invention discloses a multiband integrated sensor optical
system, which comprises a front beam compressing
system, a
beam splitting flat plate 1 for transmitting
medium wave infrared light and reflecting visible light and
laser, a
beam splitting flat plate 2 for transmitting visible light and reflecting
laser, an
infrared optical
system, a
laser ranging system and a visible light optical system, which are arranged in sequence from an object side to an image side in the
optical axis direction. The
infrared optical system, the
laser ranging system and the visible light optical system share the front beam compressing system, and form an infrared channel, a
laser ranging channel and a visible light channel respectively; and the three channels can rotate around the Z axis for 360 degrees torealize
azimuth scanning and detection, and can rotate around the X axis for 360 degrees to realize
pitch scanning and detection, so that
panorama coverage is realized. The multiband integrated sensor optical system is compact in structure, good in
optical axis uniformity, high in pointing accuracy and easy in installation and adjustment, covers three bands of visible light, infrared and laser, realizes
medium wave infrared and visible light imaging, and effectively improves performance of photoelectric detection equipment.