Camera having zoom lens system
US5204710A · kind A · utility
22Cited by
10References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1990 |
| Grant date | Apr 20, 1993 |
| Priority date | — |
| Expiry date | Jun 13, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera having a zoom lens system and detecting means for detecting photographic conditions such as distance to an object, a photographic magnification and like. Differentiation between a focal length range enabling a power zoom operation and a focal length range not enabling the power zoom operation is provided by the detecting means. The zooming operation is permitted only to a short focal length side in a particular region determined by the distance to the object, the focal length and the like. Further, an auto zooming operation is permitted only in the particular region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.