Optical component retaining device, optical component and housing

摘要

The present invention provides an optical component retaining device which includes an eyepiece lens 15 having a pair of rib portions 15 b and 15 c and a housing 16 having a slit portion 28 made of a tapered groove where the pair of rib portions are inserted and retains the eyepiece lens in the housing by holding the pair of rib portions in the slit portion. First to third planar surfaces 31 b through 33 b to be reference surfaces are arranged at three locations on one side surface of the pair of rib portions 15 b and 15 c in the light axis direction of the eyepiece lens 15 and convex portions 34 and 35 to be pressing portions are arranged at a plurality of locations on the other side surface of the pair of rib portions in the light axis direction. Further, first to third reception surfaces 47 a through 79 b to be first supporting surfaces are arranged at three locations on one side surface of the slit portion 28 corresponding to the reference surfaces of three locations and convex portion reception surfaces 47 b and 49 c to be second supporting surfaces are arranged at a plurality of locations on the other side surface of the slit portion.