Optical display unit in which light passes a first cell, reflect

Details Optical display unit in which light passes a first cell, reflect Optical display unit in which light passes a first cell, reflect

1993-12-03

1995-07-11

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 70, 359 68, 359247, 359246, G02F 1133, G02F 11335, G02F 103

Patent

active

054326249

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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