Horizontal/vertical frame viewfinder
US5111228A · kind A · utility
10Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1991 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Mar 18, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B13/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A viewfinder in a camera includes visual composition means manually operable to change from a horizontal frame view of a subject to be photographed to a vertical frame view of the subject without having to change the horizontal orientation of the camera to a vertical one. If a vertical format of the subject is selected for picture-taking, the camera is changed to a vertical orientation and the visual composition means is manually released to return automatically to the horizontal frame view of the subject. Since the camera has been changed to a vertical orientation, the horizontal frame view will appear as a vertical one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.