CATA-DIOPTRIC SYSTEM AND IMAGE CAPTURING DEVICE

摘要

Disclosed is a cata-dioptric system. A cata-dioptric system according to an embodiment of the present invention includes: a reflecting optical system that reflects incident light through a plurality of reflective surfaces; and a refracting optical system that refracts the reflected incident light, wherein the respective internal diameters of the plurality of reflective surfaces are disposed on the same perpendicular line as the external diameters of other reflective surfaces adjacent to the respective inner diameters of the plurality of reflective surfaces, or at a closer distance from a perpendicular line including the top surface of the refractive optical system.