Dimensionally Stable eyewear
US5541674A · kind A · utility
343Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 4, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Apr 4, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/124
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed are dimensionally stable eyewear frames, for minimizing visual distortion due to relative movement of the left and right optical zones of the eyewear. In one embodiment, the eyeglass orbitals are investment cast from substantially pure titanium or a titanium based alloy. The bridge may be integrally cast with the lens orbitals, or the parts may be separately formed and assembled later.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.