Photographic camera
US5740479A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1997 |
| Grant date | Apr 14, 1998 |
| Priority date | — |
| Expiry date | Feb 14, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/244
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic camera is provided with a light emission diode which emits light toward a photographic film loaded in the photographic camera in response to shutter release, and a mark recording mechanism which records marks on the film by light emitted from the light emission diode in a number which is changed in response to movement of an external control member which is operated to designate an aspect ratio of a print. The mark recording mechanism includes a light-shielding plate member which is provided with a plurality of windows and is fixed in the camera body with the windows opposed to the photographic film and a rotary light-shielding plate which is disposed between the light-shielding plate member and the light emission diode and is rotated to selectively close and open the windows in response to movement of the external control member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.