Camera with a warning system of inappropriate camera holding
US5943516A · kind A · utility
16Cited by
11References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 16, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Apr 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/18
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A warning system of a camera for providing a photographer a warning indicating an impediment to a window, provided in a front wall of the camera, through which light traveling toward and/or from a subject passes. It includes a touch sensor, disposed in close proximity to the window, which involves a resistance, or a body capacity, of a photographer's finger touching the sensor in, and as a part of, an electric circuit. This provides a change in electric parameter of the circuit by which a warning device is actuated to emit light, or otherwise generate sound, as the warning of impediment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.