Automated photographic backdrop apparatus
US5389993A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1992 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | May 21, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F11/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for displaying one of several backdrops for use in a photographic studio. The backdrop scenes are attached end to end to form a long web, one end of which is wound upon one shaft and the other end of which is attached to a second shaft. A roller weight is placed on the web between the two shafts. The shafts are motor driven, allowing automated scrolling of the different backdrop scenes and the lowering of the roller weight when the appropriate scene is found. A steering mechanism is attached to the web to ensure it is properly wound up upon the shaft each time. Optical and/or mechanical sensors detect the position of the web and a central processing unit is provided for automated movement of the web from one backdrop to another, as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.