Superimposing device for use in a data-recording camera
US4110766A · kind A · utility
2Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1977 |
| Grant date | Aug 29, 1978 |
| Priority date | — |
| Expiry date | Nov 17, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/243
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera having a superimposing device for superimposing data such as date of photograph taking on a film surface, includes a mechanism for projecting such data in a viewfinder. The superimposing device includes a first optical path for projecting a light image of the object onto an eye-piece of the viewfinder, a second optical path for projecting a light image of the data onto the eye-piece at one predetermined portion thereof and means for forming background for the data projected in the eye-piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.