Liquid crystal projection panel having microlens arrays, on each

Details Liquid crystal projection panel having microlens arrays, on each Liquid crystal projection panel having microlens arrays, on each

1993-11-10

1995-03-14

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 40, 359 42, 359 48, 359 49, G02F 11335

Patent

active

053981251

ABSTRACT:
A liquid crystal projection panel for use in a projection system. The projection panel is comprised of a large number of pixels of liquid crystal defining a image forming plane provided between two transparent substrates. Microlens arrays are provided on both sides of the projection panel. The microlenses in both arrays have focal lengths such that parallel light rays entering the microlenses at an angle perpendicular to the arrays are focused at points beyond the image forming plane of the display.

REFERENCES:
patent: 5056912 (1991-10-01), Hamada et al.
patent: 5101279 (1992-03-01), Kurematsu et al.
patent: 5126863 (1992-06-01), Otsuka et al.
patent: 5315330 (1994-05-01), Hamada
patent: 5502783 (1991-10-01), Hamada

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