Two-waveband hole-diameter-shared light-path-shared zoom-shared imaging optical system

The invention belongs to the technical field of optical devices, particularly relates to a visible light and infrared light two-waveband hole-diameter-shared light-path-shared zoom-shared imaging optical system. According to the technical scheme, the two-waveband hole-diameter-shared light-path-shared zoom-shared imaging optical system comprises a public zoom set part, a beam splitter prism, a visible rear set, a zoom ratio error compensation set and an infrared light rear set part, wherein the public zoom set part is composed of a public front fixed set, a public zoom set and a public compensation set, the public front fixed set, the public zoom set and the public compensation set are sequentially arranged, the light splitter prism is placed on the light outlet side of the public compensation set in the public zoom set, and a transmission light path of the light splitter prism and a reflection light path of the light splitter prism are provided with the visible light rear set and the infrared light rear set respectively. A hole-diameter-shared light-path-shared zoom-shared mode is adopted, the reaction speed of the two-waveband hole-diameter-shared light-path-shared zoom-shared imaging optical system is improved, real-time requirements in the detection process are met, eight structural sets in a traditional system are simplified into five sets, and complexity of the whole system is reduced.