Development of an Electronic Target-Type Optical Performance Calibration Device for Medical Rigid Endoscopes

An electronic target-type medical rigid endoscope optical performance calibration device is proposed. The device consists of a special electronic target display screen, a special high-definition camera lens, a video image acquisition system, a digital image processing computer, a multi-dimensional adjustment table, an angle encoder and a software module. It can analyze a number of optical parameters such as the field of view angle of the pupil of medical rigid endoscopes, the angle of view direction, the relative distortion of the unit and the optical efficiency of the imaging mirror body at the calibration customer's site.