Ophthalmic lens having a projection insert
US6880931B2 · kind B2 · utility
41Cited by
7References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 9, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Jan 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An ophthalmic lens contains inserts (26, 28) for projecting an image towards the user's eye. The lens is treated by coating the surface order to attenuate light reflected on the treated surface from the inside of the lens. Coating the surface of the lens attenuates the parasitic images formed by rays reflected on the coated surface and projected by the insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.