Even then, I'm not so sure that it would be projected in focus without a special lens, since the distance from the lens to a flat screen is different (longer) at the sides of the picture as compared to the center of the picture. With the curved screen, it would be the same distance on the edges and the center.

I'll bet it would be more in focus. I don't think lenses are designed
to take the straightness of a screen into account, and we just put up
with blurry edges and a sharper donut.

Jose
--
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