[photo-3d] Re: Legitimizing 3D Movies

[Peter Homer <P.J.Homer@xxxxxxxxxxxxx>]

Herbert C Maxey wrote

>Eastman Kodak once offered a screen that was also slightly curved. It was
>called an Ektalite Screen, and without any doubt, this was the finest
>screen I ever saw. A coworker bought one and tried for as long as I could
>remember to locate another one. As I recall they were quite small.

We still have a couple of screens at work which I think are Ekatalite, they are small being intended for small lecture rooms. I believe these were actualy intended for the early projection TV,s using red, green, blue cathode ray tubes which had to be all registered on the screen. The concave curvature was intended to compensate for the convex of the tube. I have tried stereo projection on these screens and they are very bright with good retention of polarisation being a kind of brushed aluminium but very directional. If the projectionist standing gets the brightest view then the audience don't and vice versa. P.J homer