Camera having a provision for multiple exposures
US4723141A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1986 |
| Grant date | Feb 2, 1988 |
| Priority date | — |
| Expiry date | Nov 7, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/243
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A camera having a provision for multiple exposures comprises an exposure mode setting member for selectively setting the camera operation either to an ordinary-exposure mode or to a multiple-exposure mode, a switch member which is rendered operative only when the exposure mode setting member selects the multiple-exposure mode and a one-frame film advance mechanism actuated by the operation of the switch member. This camera further comprises a data recording device for recording data such as the date on a film once every frame and a mark recording device for recording the same number of marks as there have been multiple exposures upon every exposure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.