Spectacle lens
US10175509B2 · kind B2 · utility
1Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2017 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Mar 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A spectacle lens is produced through a first step of stacking a first member colored in cyan and a second member colored in red and integrating the first member and the second member, and a subsequent second step of partially polishing a periphery of a convex surface of the first member. Provision of the polishing step enables unique design and production of appropriate numbers of widely varied distinctive spectacle lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.