Surgical microscope with solenoid driven magnification changer
US4262989A · kind A · utility
8Cited by
1References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 5, 1979 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Nov 5, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B21/0012
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A stereo surgical microscope using a single large objective lens as the final lens of both optical paths and having changeable sets of galilean optics behind the objective lens for each optical path, the sets of galilean optics mounted on a rotary single shaft and arranged to provide magnification changes upon rotation of the shaft. A rotary solenoid connected to one end of the rotary shaft rotates the magnification changer for a different magnification upon each operation of a switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.