The invention discloses a
refrigeration type common-
caliber m medium / long-wave
infrared double-waveband double-view-field dual-shift
zoom optical
system. The
system comprises a first double-crescent positive lens, a second double-crescent positive lens, a first double-crescent negative lens, a third double-crescent positive lens, a second double-crescent negative lens, and a
first light splitting
prism for reflecting medium-wave
infrared light and transmitting long-wave
infrared light which are successively arranged along an
optical axis. A reflection
optical path of the medium-wave infrared light passing through the
first light splitting
prism is successively provided with a fourth double-crescent positive lens, a dual separate lens group, a first dual convex lens, a second dual concave lens, a sixth double-crescent positive lens and a seventh double-crescent positive lens, and a transmission
optical path of the long-wave infrared light passing through the
first light splitting
prism is successively provided with an eighth double-crescent positive lens, a second dual convex lens, a third dual concave lens, a third double-crescent negative lens and a ninth double-crescent positive lens. The dual separate lens group is composed of a first dual convex lens and a fifth double-crescent positive lens. According to the
system provided by the invention, a target image can be tracked, detected and captured in a high-accuracy manner.