Ray screening visor for spectacle lenses
US6957889B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Oct 25, 2005 |
| Priority date | — |
| Expiry date | Dec 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/16
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Spectacles having a ray shading visor preventing light rays from contacting an upper portion of the lens. The spectacles comprise at least one temple piece and at least one lens of predetermined thickness connected to the temple piece having an inner face, an outer face, and a center point centrally located on the outer face of the lens. A receiving structure integrally formed within the lens receives the ray shading visor. The visor structure is non-translucent and has an outer surface arcuately extending outwardly from the outer face of the lens toward the center point of the lens. An inner surface of the visor is shaped to matingly rest adjacent the outer face of the fens. The visor has a fastening structure integrally formed with the non-translucent visor and is sized and shaped to be matingly connected to the receiving structure of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.