Screens for 3-D and Their Effect on Polarization

W. A. Shurcliff

A 3-D motion-picture screen, besides reflecting the two incident beams with good gain throughout a reasonably wide lobe, must conserve the polarization tagging of the beams. Tests on 100 screen samples show that the majority of screens of normal design meet these requirements excellently — for viewing angles not exceeding about 20° from the screen normal. Thus these screens are very satisfactory for use in narrow theaters. For 45° viewing, such as occurs in wide theaters, screens of this type usually have rather low gain and their polarization defect values approach a harmful level. Lenticulated screens, however, tend to avoid these difficulties and thus go a long way toward solving the wide-theater problem. There are several different designs of lenticulated screens, each having certain advantages and disadvantages.

Print ISSN
Published
1954-02
Content type
Original Research
DOI
10.5594/J01727