The present invention relates to a large-aperture and large-image-surface
space debris monitoring optical
system. The optical
system is provided with a front fixed group A with negative
optical power, an aperture, and a rear fixed group B with positive
optical power in sequence along the incident light path. The front fixed group A is composed of a
meniscus positive lens A1, a first cemented group formed by closely bonding a biconvex positive lens A2 and a biconcave negative lens A3, and a second cemented group formed by closely bonding a
meniscus positive lens A4 and a
meniscus negative lens A5. The rear fixed group B is composed of a biconvex positive lens B1, a biconcave negative lens B2 and a biconvex positive lens B1. The optical
system consists of a third cemented group formed by closely bonding lenses B3, a biconvex positive lens B4, a fourth cemented group formed by closely bonding biconvex positive lens B5 and biconcave negative lens B6, a meniscus positive lens B7, a meniscus negative lens B8 and
flat glass B9; the optical system has
high resolution,
low distortion, small
chromatic aberration, strong monitoring capability,
large aperture and large image surface, which are conducive to enhancing the energy entering the optical system, monitoring smaller
space debris, and increasing the monitoring range of
space debris; a weight-reduction design is adopted to effectively control the weight of the lenses, which is conducive to the carrying of aircraft.