Method for manufacturing spectacle lenses according to a prescription
US8784160B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 2009 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Jul 11, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00942
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing spectacle lenses includes the steps of: providing a lets blank having a first face that possesses a final curvature and is coated with an antireflection coating as an outer layer, a second face, and an edge; blocking with a blocking material the lens blank with its first face on a block piece; processing the blocked lens blank on the second face and to obtain a processed lens; deblocking the processed lens from the block piece; and applying on top of the first face antireflection coating of the processed lens a top coating selected from at least one of hydrophobic, oleophobic or dust repelling coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.