| 摘要 |
PROBLEM TO BE SOLVED: To prevent separation in a fitting part of a first lens frame and a second lens frame by a shock from the tip. SOLUTION: A tip part body 13 forms a machine screw hole 13d so that a fixing machine screw 15 is screwed in. The fixing machine screw 15 is screwed in the machine screw hole 13d of the tip part body 13, and fixes an imaging unit 14 by sandwiching a fixing part 31a of the second lens frame 31 of the imaging unit 14 with a step difference part 13c of the tip part body 13. Since the shock from the tip is transmitted to the tip part body 13 via the fixing part 31a of a tip optical part 28 and the second lens frame 31, force is not applied to the fitting part of the first lens frame 29 and the second lend frame 31, and the separation of this part can be prevented. COPYRIGHT: (C)2005,JPO&NCIPI
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