Glasses to emulate backlight strobing? [Mechanical Strobing Project WORKS]

[Baron of Sun]

Thanks for all the information and ideas! I'd like to build a prototype of a mechanical shutter.
I have one question about the number of slits: Is there any disadvantage in using more slits? For example why not using 60 slits, then we need just 1 rotation per second and it is maybe easier to setup the speed correctly? And does it have any negative effect if there are so many slits that multiple parts of the screen are visible at the same time? Or is it rather good because maybe the flicker is reduced because the darker parts are really small?

[Baron of Sun]

Thanks for all the information and ideas! I'd like to build a prototype of a mechanical shutter.
I have one question about the number of slits: Is there any disadvantage in using more slits? For example why not using 60 slits, then we need just 1 rotation per second and it is maybe easier to setup the speed correctly? And does it have any negative effect if there are so many slits that multiple parts of the screen are visible at the same time? Or is it rather good because maybe the flicker is reduced because the darker parts are really small?

Never mind, at first I thought more slits would have the same effect as multiple rolling scans in parallel, but that's not the case. The more slits you have, the slower they move and the flicker increases. 60 slits would mean one rotation per second so you can easily see all dark parts of the chopper and that would never be the same experience as typical 60 Hz strobing or rolling scan or black frame insertion.

If anything I wrote is wrong please tell. It was not so easy to visualize that in my head at first so I needed some time

EDIT:

I was completely wrong. I built two choppers, one with 10 slits and another one with 20 slits. It was not the case that the 20 slits chopper would have twice the flicker (like a 30 Hz BFI vs 60 Hz BFI). I think the number of slits just increases the number of parts the display is divided into, but every part of it flickers at the same frequency as if you would use half the slits, but double the rotation speed.

That gave me hope to continue working on that project. With the number of slits I used above I was even able to see the reduced motion blur on the test UFO by rotating the chopper just with my hands because I just needed 3 or 6 rotations per second.