ELECTRONIC ENDOSCOPE DEVICE, IMAGING MODULE AND PHOTOGRAPHIC LENS MOLDING METHOD

摘要

PROBLEM TO BE SOLVED: To provide an electronic endoscope device in which an object lens optical system of an imaging module can be free from dew condensation and is easily assembled.;SOLUTION: An object lens optical system of an imaging module includes: a distal lens 50a in which a distal surface for allowing a light to be incident and a back surface opposite thereto are formed to be flat, and a concave portion S for collecting the incident light is formed on the center of the back surface; a flat plate 50b which is arranged on the back surface side of the distal lens 50a and closes the concave portion S; and a mirror barrel 51a which is formed by integrally molding the distal lens 50a and the entire periphery of the flat plate 50b with a resin while keeping a state in which the flat plate 50b is pressed to the side of the distal lens 50a and a bonding surface between the flat plate 50b and the back surface of the distal lens 50a are directly bonded.;COPYRIGHT: (C)2014,JPO&INPIT