Optical lens system with electro-active lens having alterably different focal lengths
US6619799B1 · kind B1 · utility
241Cited by
77References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 23, 2000 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Jun 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/294
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An optical lens system that may include a lens with a first focal length and an electro-active region coupled to the lens, where activating the electro-active region alters a portion of the system to a second focal length such that the system has two different focal lengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.