| 摘要 |
<p>A lens (L) with an aspheric surface (10) is held by a vacuum lens holder (12). A lap wall (42) is moved towards the lens surface (10) while in a plastic state. A polishing fabric (PF) is positioned between the lens surface (10) and the lap wall (42) before they are moved together. Fluid pressure in a chamber (44) behind the lap wall (42) is used to move the lap wall (42) and the polishing fabric (PF) against the lens surface (10). This causes the lap wall (42) to take a shape corresponding to the shape of the lens surface (10). Then, the lap wall material (42) is caused or allowed to become a solid. When the lap wall (42) is solid, the polishing fabric (PF) is caused to move relative to the lens (L) and the lap (32). The lap wall (42) holds the polishing fabric (PF) against the lens surface (10) while the polishing fabric (PF) moves across the lens surface (10) and polishes it.</p> |
