Data photographic device for camera
US4193676A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Jul 6, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera is equipped with a member bearing data to be photographed such as a date and the like and a data light focusing optical system for projecting the illuminated data from the data member at the front of the camera rearwardly with the object light toward the data photographing portion of the film. The data light focusing optical system is arranged so that the data light is directed to be incident on the data photographing portion of the film from a direction different from the incident direction of the object light. Provided in the front of the data photographing portion of the film is an object light incidence limiting member which is positioned parallel with the plane of the film and allows the transmission of the data light therethrough but interrupts the object light directed toward the data light focusing portion of the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.