Rigid endoscope optical system

摘要

A rigid endoscope optical system which can obtain both a wide angle image for finding an organ and a high resolution image used for a precise treatment. The rigid endoscope optical system has objective optical systems for stereoscopic observation which forms right and left images. The rigid endoscope optical system also has a secondary objective optical system which has a field of view different from the objective optical system for stereoscopic observation, and one relay optical system which transmits the images of the objective optical system for stereoscopic observation and the secondary objective optical system.