Method and apparatus for the dry release of a compliant ophthalmic article from mold surface
US8038912B2 · kind B2 · utility
9Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2009 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Aug 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/808
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for releasing a molded lens from a deformable mold includes a shear ring for temporarily retaining an annular portion of the deformable mold outside a periphery of the lens and a plunger for deforming an annular section of the deformable mold within the periphery of the lens. The apparatus can be employed to release a non-hydrated hydrogel lens from a deformable mold section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.