Eyeglass frame including shape-memory elements
US4895438A · kind A · utility
20Cited by
52References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1988 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Jun 1, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C5/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Eyeglass frames fabricated from shape-memory alloys which have optimized elastic properties, which exhibit a combination of shape-memory and elastic properties, which utilize the shape-memory property of these alloys in fastening elements or which utilize the flexibility and fatigue resistance of the martensite state of the alloys as a hinge element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.