Display element with notched disk

Details Display element with notched disk Display element with notched disk

G - Physics

09

F

40/38

G09F 9/30 (2006.01) G09F 9/305 (2006.01) G09F 9/37 (2006.01)

Patent

CA 2013663

A B S T R A C T A rotor presents bright and dark sides of a flat disk to a viewer. When the bright side is presented this side plus a stationary panel form a bright viewing area. When the dark side is presented the panel is occluded.

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