| 摘要 |
A rear projection screen is disclosed which uses a front surface lenticular array to distribute light from projection light sources through a horizontal angle of virtually 180 DEG with uniform luminance. Each lenticular element of the array is characterized by having a height to width ratio of at least 3:2 and a pitch width to tip width ratio of at least 2:1. The lenticular array is further characterized as having the capability of having up to two-thirds of the front surface area black masked. When used in a color television system, the rear projection screen exhibits minimal color shift.
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