| 摘要 |
PURPOSE:To lower height and to prevent interference with other contents by disposing a solid state image pickup element in such a manner as to have an angle, except a right angle, to the central axis of an image transmission optical system to the rear of the exit end of the optical system in the operating part of a hard mirror. CONSTITUTION:A final face 10 of the image transmission optical system 10 is formed as a slope in the direction of a forceps channel 8 and the optical axis of the optical system is formed by being bent to the side opposite to the forceps channels 8. Since the solid state image pickup element 12 is disposed perpendicularly to the optical axis 11 in the imaging position on the rear side of this optical system 5, the element is eventually disposed so as to incline from the right angle with the central axis 13 of the optical system. The height can be thereby lowered when viewed in the direction perpendicular to the central axis 13 and since the solid state image pickup element is provided to incline with the forceps channel 8, the interference with each other is obviated.
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