Automated photographic backdrop apparatus

摘要: Apparatus for displaying one of several backdrops use in a photographic studio. The backdrop scenes are attached end to form long web, which is wound upon shaft and the other second shaft. A roller weight placed on web between two shafts. shafts motor driven, allowing automated scrolling different lowering when appropriate scene found. steering mechanism ensure it properly up each time. Optical and/or mechanical sensors detect position central processing unit provided movement from another, as desired.