| 摘要 |
PROBLEM TO BE SOLVED: To provide an endoscope which is easy to see without any shift of an endoscope image on a photograph and a monitor even unless adjustments are made by an adjusting mechanism by arranging a cylinder which contains a relay lens or a fixed member fixed to this cylinder and an ocular frame where an ocular is fixed coaxially. SOLUTION: At the rear end of an internal pipe 5, a fixed frame 16 is fixed airtightly as a the fixed member which extends to before the ocular 19, and this fixed frame 16 is engaged and fixed coaxially with the frame 14. At the rear end of the ocular frame 17, the ocular 19 for enlarging and observing the endoscope image transmitted from the tip by the relay lens 13 is adhered and fixed, and the optical axis of the ocular 19 is coaxial with the external diameter of the ocular lens frame 17. Thus, the cylinder 5 which contains the relay lens 13 or the fixed member 16 which is fixed to this cylinder 5 and the ocular frame 17 where the ocular lens 19 is fixed are arranged coaxially to prevent the endoscope image from shifting up and down, and right and left on a film surface. |
