The design of double vision field imaging system based on single lens-reflective structure

The application of dual-field system with simple structure and wide field of view is more and more extensive. A reflective structure system was used to design two optical systems with a large depth of field to achieve the best imaging results for two different fields of view. The main parameters of the system are: the focal length of the lens is 35mm, the diameter of the pupil is 5mm, and the object distance of the dual field of view is 500mm and 800mm, respectively.The number of lenses in the system is only one biconvex single lens, using a combination of axially variable refractive plates. Moving a single lens can achieve focusing, resulting in high imaging quality and overall system structure is simple.