Toric tool for polishing an optical surface of a lens and a method of polishing an atoric surface using the tool
US6814650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Aug 6, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D7/16
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool for polishing an optical surface of a lens includes a rigid support including a support surface, a first layer called the buffer made from an elastic material and covering at least part of the support surface, and a second layer called the polisher and covering at least part of the buffer. The buffer has a first surface adhering to the support surface and a second surface opposite the first surface. The polisher has a first surface adhering to the second surface of the buffer and a second surface called the polishing surface opposite the first surface and adapted to polish the optical surface of the lens by rubbing against it. The polishing surface is a toric surface and, to be able to polish an atoric optical surface, the buffer is adapted to be compressed elastically and the polisher is adapted to be deformed to espouse the atoric surface. Applications include polishing atoric optical surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.