| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the mounting or the exchange of a constituting member equipped with an optical component by holding the constituting member on the stopper of a switching system by spring force. SOLUTION: One edge of respective flanges 10,... of a reflection mirror base 9 to be received is inserted in the rear of a leaf spring 8a adjacent to the revolver disk of both supports arranged at receiving positions. The flanges 10,... are inserted against the spring force of the spring 8a. The spring 8a presses the flanges 10,... and presses the flange to the abutting surface 6a facing outward of the support 5 on an opposite side to a light passing aperture. Next, the base 9 is rotated. At such a time, the free ends of two supports 5 are turned outward of a 2nd leaf spring 7 constituted to be V-shaped. By rotating the base 9 further, the tip of the V of the spring 7 slides through the edges of the flanges 10,... and presses the flanges 10,... to the short abutting surface 6c perpendicular to the revolver rotary shaft line of both supports. Then, the abutting surfaces of the flanges 10,... abut on the abutting surfaces 6a and 6c of the support 5 at a terminal position.
|
