Optical system with variable image scale
US5731910A · kind A · utility
5Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1995 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Jun 14, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/393
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical system with variable image scale for video recordings by means of a CCD camera at a microscope. A video zoom adapting arrangement with a short overall length which enables all image scales for video cameras required in practice is realized in that three optical components with a positive focal length are provided. One optical component is stationary and a second and third optical component are arranged after the first optical component, as viewed in the imaging direction, so as to be displaceable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.