| 摘要 |
PROBLEM TO BE SOLVED: To provide a fixture capable of accurately fixing an elastic seal between an optical component and a retainer without directly touching the optical component by an operator.SOLUTION: A fixture 1 is used for fixing an annular elastic seal member 4 between an annular side face 21 of an optical component 2 and a retainer 3 holding the optical component 2. The fixture 1 comprises a first contact face A1 which can be brought into contact with an upper face 22 crossing the side face 21 of the optical component 2, a projection 11 which is placed so as to surround the first contact face A1 and projected more than the first contact face A1 in a vertical direction to the first contact face A1 and a second contact face A2 which is disposed at the tip end of the projection 11 and can be brought into contact with the elastic seal member 4.SELECTED DRAWING: Figure 4 |
