Camera with magnetic orientation sensor
US5614981A · kind A · utility
14Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1995 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | Nov 20, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic camera is provided with an orientation detector including first and second elements that move relative to one another under the influence of gravity, and a signal device that responds to magnetic fields between the first and second elements to represent camera orientation. One of the elements is magnetized and the other is a Hall-effect sensor that responds to magnetic fields to produce an electrical output indicative of camera orientation. The signal device includes a recording mechanism responsive to the electrical signal for recording the camera orientation on the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.