Interference fitting polar resin ophthalmic lens molding devices and related methods
US8287782B2 · kind B2 · utility
0Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2007 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | May 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2011/0041
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Ophthalmic lens molds include first and second mold members sized and adapted to be assembled, for example interference fitted, together to define a lens-shaped cavity therebetween. At least one of the mold members includes a polar polymeric material and has a flexural modulus less than 3800 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.