Display device for camera
US4692014A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Feb 10, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a display device for a camera of the type having adjustable display brightness, photographic information to be displayed is repeatedly converted by an A-D operation which is performed by an A-D conversion circuit; the digitally converted information is displayed by a display device. Information concerning display brightness modulation required for the display is arranged to be converted by A-D operation by the A-D converter every time the photographic information to be displayed is converted by A-D operation a predetermined number of times. The display brightness is adjusted on the basis of the A-D converted value of the display brightness information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.