Does anyone know about or can point me in the right direction for timing information on persistence of vision systems that don't rely on something spinning or being waved around in the air? I have seen a couple commercial systems that had a single stationary column of lights that when you turned your head would project 2D images into your peripheral vision. Look at them head on and they don't seem to have any special picture but start to look away and for a fraction of a second you would see the image of a cactus or a cowboy boot, etc. (This was at a Mexican restaurant.) I've found lots of pages that describe a column of LEDs spinning through the air and the timing for that seems trivial since it's all position based and does not need to be hard coded into a controller. But so far I'm at a loss on scanning information for the type of system described above. Any leads? Thanks in advance!
-Will