Zooming optical system control device
US4899190A · kind A · utility
16Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | May 31, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/282
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A zooming optical system control device for controlling the setting of a zooming optical system to one of a plurality of regions such as a zooming region wherein the optical system ensures zooming photographing, a macro region wherein the optical system ensures macro photographing and a containment region wherein the optical system is contained into a predetermined position, the optical system having a zooming lens group, a macro lens group and a focusing lens group each disposed on one identical optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.