Zoom camera
US5122825A · kind A · utility
12Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Aug 2, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/102
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a zoom camera having a zoom lens including a variator lens, and a driving system for driving the variator lens, the image magnification is computed in accordance with a predetermined program based on the detected object distance, and such a focal length is computed as to obtain a specified value of image magnification based on the detected object distance and the computed image magnification, and the obtained focal length data is fed to the driving system. As a result, auto-zooming with a suitable image magnification in accordance with the object distance can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.