beijing optics

Front view and panoramic side view videoscope lens system design

Front view and panoramic side view videoscope lens system design

Front view and panoramic side view videoscope lens system design 1. Introduction A typical endoscope, either for industrial or medical purpose, is conventionally the front viewing type, which have a limited view angle. There are several designs that can achieve wide field of view, such as fish-eye lens, panoramic reflector, panoramic annular lens (PAL), multi […]