| 摘要 |
A floating mirror mount (11) for a mirror (13) of a laser comprises a mirror having a front surface (15) and a back surface (17). A keeper (53) encircles the mirror and has a peripheral flange which engages the front surface of the mirror when the mirror mount is not installed in a laser. A retainer (55) is connected to the keeper and has a spring seating surface. A movable spring plate (57) has a surface engagable with the back surface of the mirror. Springs (59) are engageable with the spring seating surface and with the spring plate for exerting a resiliant biasing force on the mirror which is sufficiently large to force the mirror against the peripheral flange of the keeper when the mirror is not installed in a laser. The spring force is sufficiently small to permit the mirror to be moved out of contact with the peripheral flange and to a different location when the front surface of the mirror is engaged by mirror positioning structure of the laser in the course of installing the mirror mount in a laser. |
