Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1993-01-26
1995-02-28
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
362 31, 362335, 359 69, 359 42, G02F 11335, F21V 704
Patent
active
053942558
ABSTRACT:
A light adjusting sheet for a planar lighting device includes a plurality of convex and concave streaks arranged alternately and approximately parallel to each other on one surface. The streaks may have a cross section of a sine curve. Another light adjusting sheet consists of a plurality of single sheets each having the above configulation, stacked together. A planar lighting device includes the light adjusting sheet of the above configulation, wherein peak lines of the convex streaks and bottom lines of the concave streaks are arranged to make a predetermined angle with an axis of a linear light source. The liquid crystal display includes a liquid crystal display element placed on front of the planar lighting device of the above configulation.
REFERENCES:
patent: 3994564 (1976-11-01), Somogyi
patent: 4298249 (1981-11-01), Gloor et al.
patent: 4416515 (1983-11-01), Funada et al.
patent: 4870484 (1989-09-01), Sonehara
patent: 5005108 (1991-04-01), Pritash et al.
patent: 5079675 (1992-01-01), Nakayama
patent: 5206746 (1993-04-01), Ooi et al.
patent: 5262928 (1993-11-01), Kabhina et al.
Fujigami Makoto
Kubo Akihito
Nishitani Fumio
Ogawara Hiroshi
Yokota Tomohiro
Parker Kenneth
Sekisui Kagaku Kogyo Kabushiki Kaisha
Sikes William L.
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