Exposure information feedback in electronic and/or hybrid film/electronic cameras
US5041911A · kind A · utility
12Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Dec 13, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/633
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention is an exposure metering system particularly adapted for use with an electronic camera. The exposure meter is responsive to the electrical signals formed by the image capturing electronics of the camera. Using these electrical signals, a pseudocolored image is formed and displayed based on the exposure of individual image sub-areas. A full tonal original image may thus be modified to provide an image having zones each with one selectable tonal value. Each zone thus formed represents a range of tones appearing in the original image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.