Spectacle frame
US4953966A · kind A · utility
6Cited by
1References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Jan 6, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C1/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A spectacle frame comprises a face-contacting portion such as a side and a lens-fixing portion such as a rim, both the portions being made of a shape memory alloy, and connecting members to be connected with the face-contacting portion and the lens-fixing portion. The connecting member is made of a titanium alloy, preferably .beta.-phase. The face-contacting portion and the lens-fixing portion are soldered to the connecting member with a palladium-based soldering material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.