Apparatus and method for attaching a finishing block to a lens
US5721644A · kind A · utility
20Cited by
13References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Sep 24, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49984
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to an apparatus and method for applying a finishing block to a lens. An imaging screen for imaging an alignment pattern representing characteristics of the lens and reference data on the lens is provided. The lens is positioned in the apparatus with the pattern and the data aligned. With the lens in this position, the apparatus automatically attaches the finishing block to the lens in registration with the reference data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.