Lens blocking apparatus
US5505654A · kind A · utility
38Cited by
12References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1993 |
| Grant date | Apr 9, 1996 |
| Priority date | — |
| Expiry date | Sep 7, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B13/0052
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for blocking an ophthalmic lens blank for working the lens includes an alignment station for supporting and aligning the lens blank relative to a target image and a transport means for moving the lens from the alignment station to a blocking station while maintaining lens orientation. The blocking station includes a support for a lens block, support for the lens, and a mechanism for injecting heated liquid bonding material between lens and block which solidifies on cooling to join the lens and block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.