| 摘要 |
<p>The endoscope (1) of an embodiment has a protrusion (12) which is located on a distal end hard member (13) at the boundary where a surface (T1) which surrounds an objective lens and a surface (S1) which surrounds an illumination lens are in contact, the surface (T1) having an objective lens mounting hole (13a) provided therein, the surface (S1) having an illumination lens mounting hole (13b) provided therein. When the distal end hard member (13) is viewed from the top surface side parallel to the axis (O), the protrusion (12) protrudes from the surface (S1) surrounding the illumination lens and is formed in a region including the intersecting point (X) with the line (P2b) which connects the axis (PS) of at least the objective lens (10) and the center (P2a) of the outlet of a nozzle hole (11a).</p> |
