Patent ID: 11963660
Assignee: OLYMPUS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H | IPC A  G

Claim 19:
20. A distal end unit for use with an endoscope, the distal end unit comprising:
a distal end frame body comprising resin, the distal end frame body including a cavity extending from a distal end surface of the distal end frame body toward a proximal end of the distal end frame body, the cavity comprising:
a first inner circumferential surface;
a second inner circumferential surface having a second periphery shorter than a first periphery of the first inner circumferential surface, the second inner circumferential surface located proximally relative to the first inner circumferential surface;
a flat surface connecting the first inner circumferential surface and the second inner circumferential surface; and

a groove provided on the flat surface;
a metal plating layer provided on the flat surface and in the groove;
a cover glass covering a first portion of the metal plating layer such that a space is formed between a second portion of the metal plating layer and at least an outer peripheral surface of the cover glass;
solder bonding the cover glass to the metal plating layer; and
an adhesive disposed in the space.