Combination viewer and projector
US4185899A · kind A · utility
2Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1976 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Jun 1, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A combination viewer and projector having a housing with a rear-lighted viewing screen mounted therein. The housing is adapted to receive a magazine having a length of film therein which can be advanced past an aperture in the magazine. A source of light is provided in the housing and is then directed into the magazine to form an image from the film in the aperture. Means is provided in the housing for receiving the image and for directing it onto a rear-lighted screen or alternatively through a projection opening in the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.