Optical display unit in which light passes a first cell, reflects, then passes a second cell
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United States of America Patent
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-
Jul 11, 1995
Grant Date -
N/A
app pub date -
Dec 3, 1993
filing date -
Dec 3, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical color display unit is illuminated and operated with external light (36) consisting of the basic color components. The display unit uses a color-selective matrix (26) of color-selecting elements (28a, 28b, 28c, 42) to separate the incoming external light into its color components (36a, 36b, 36c) according to the refraction and diffraction principles of optics. After separating the light into its color components, the geometry of the color-selecting elements (28a, 28b, 28c, etc.) selectively reflects only one, predetermined color component. The colors of the individual color-selecting elements are chosen such that a color image can be displayed on the screen surface.
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Cited Art Landscape
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