Projector Dowser mods


Part of the fun of a maker shop is getting to build very odd, very custom products. Here were adapting a generic-sized projector dowser for a decidedly non-generic projector.

The backstory: Inexpensive digital projectors are used on shows everywhere but they have a problem that is difficult to overcome: when they fade out, they still project light - called “video black” . This small amount of light is easily visible during a stage blackout and a "dowser," was developed to contain this light.

Final product with height-adjustable shelf and enlarged paddle:


Original dowser:


Because the lens is interchangeable, we needed to put in an adjustable shelf/mount-point for the dowser that could bridge both standard and large-diameter (pictured) lenses:



Lastly, a larger paddle was added to mask the entire lens: