| 摘要 |
<p>A machine for smoothing and/or polishing lenses has a holder (8) which is carried on a slide (24). The slide is guided for movement in two mutually perpendicular directions, both of which are perpendicular to a main axis (27) of the machine. The slide is moved in a plane perpendicular to the main axis along a curved path which results from the combination of two orbital motions produced by cams (32, 35). One cam (32) is secured to the main shaft (28) and rotary motion is transmitted to the other cam (35) by an element (33) which rotates about the axis of the main shaft and is driven from the main shaft through a transmission means which has a velocity differing from unity. </p> |
