Variable focal length lens
US4712882A · kind A · utility
22Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 27, 1984 |
| Grant date | Dec 15, 1987 |
| Priority date | — |
| Expiry date | Dec 27, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B3/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A variable focal length lens in which a lens comprising a transparent elastic member having a non-uniform distribution of refractive index is adapted to be deformed by an extraneous force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.