| CPC A61B 1/121 (2013.01) [A61B 1/0011 (2013.01); A61B 1/00124 (2013.01); A61B 1/00195 (2013.01); A61B 1/053 (2013.01)] | 20 Claims |
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1. A camera head comprising:
a casing including an opening and configured to receive a subject image introduced inside through the opening;
an image sensor housed in the casing and configured to capture the subject image;
an optical element made of a translucent material and fixed to an inner circumferential surface of the opening by brazing with solder to airtightly seal inside of the casing, wherein an outer surface of the optical element opposite the opening of the casing are exposed; and
a watertight sealing member fixed to the casing and watertightly sealing the solder joining the casing and the optical element, the watertight sealing member including
an annular elastic portion made of an elastic material, and
a pressing portion including an annular pressing surface configured to press the annular elastic portion toward the optical element and the solder when the annular elastic portion directly abuts the outer surface of the optical element and the solder, the pressing portion being fixed to the casing, wherein
the solder is between the casing and the annular elastic portion,
the casing includes an extension portion that extends towards the pressing portion along the annular elastic portion and the solder, and
the pressing portion includes a protrusion that extends towards and contacts the annular elastic portion and overlaps the extension portion.
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