Afocal zoom system
US5991090A · kind A · utility
18Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 25, 1998 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Sep 25, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is directed to an afocal zoom system for a surgical microscope. The zoom system has an even number of members and is symmetrically configured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.