| 摘要 |
A lens pad is provided for use on a lens clamp. The lens pad comprises a lens-engaging surface which, in turn, has a lens-facing recess located substantially centrally thereon. The lens-engaging surface thus is annular. Alternatively, the lens-engaging surface is more resilient toward a center thereof than toward a periphery thereof. Forces exerted by the lens pad against a surface of a lens when the lens pad is pressed against the surface therefore are less concentrated than such forces would be if the lens-engaging surface had no recess or variation in resiliency. Also provided is a clamp pad assembly. The clamp pad assembly includes a lens pad and a rotatable body for rotatably connecting the lens pad, at least indirectly, to a clamp arm. The clamp pad assembly also may include a swivel member which is pivotally mounted to the rotatable body for rotation therewith and for pivoting with respect thereto, in which case, the lens pad is mounted to the swivel member for rotation and pivoting therewith. The clamp pad assembly also may include a quick-release system capable of frictionally connecting the rotatable body to the clamp arm. The quick-release system permits quick removal and replacement of the clamp pad assembly for purposes of repair, changing lens pad configurations, changing lens pad sizes, and the like.
|
