Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Patent
1995-09-29
1998-03-10
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
Projector including liquid crystal cell
349114, G02F 11335
Patent
active
057267197
ABSTRACT:
The projection-type color display device of the invention includes: a white light source; a splitting means for splitting white light emitted from the white light source into a first, a second, and a third beam having respectively different wavelength regions; a modulation means for modulating the first, the second and the third beams; an irradiation means for irradiating the first, the second and the third beams onto a principal surface of the modulation means at respectively different angles; and a projection means for projecting the first, the second and the third beams modulated by the modulation means. In the projection-type color display device, the first beam includes a color beam having a weakest intensity among the beams in three primary colors contained in the white light; and a direction of the first beam incident onto the principal surface of the modulation means is closer to a normal of the principal surface of the modulation means as compared with the second and the third beams.
REFERENCES:
patent: 4620791 (1986-11-01), Combastet
patent: 5161042 (1992-11-01), Hamada
patent: 5359440 (1994-10-01), Hamada et al.
patent: 5537171 (1996-07-01), Ogino et al.
patent: 5541746 (1996-07-01), Hamagishi et al.
M. Oikawa et al., APPLIED OPTICS, vol. 21, No. 6, pp. 1052-1056, 1982, "Distributed-Index planar microlens".
M. Oikawa et al., ELECTRONIC LETTERS, vol. 17, No. 13, pp. 452-454, 1981, "Distributed-Index Planar Microlens Array Prepared From Deep Electromigration".
Z.D. Popovic et al., APPLIED OPTICS, vol. 27, No. 7, pp. 1281-1284, 1988 "Technique for monolithic fabrication of microlens arrays".
Hamada Hiroshi
Nakanishi Hiroshi
Ohshima Hideki
Tanaka Naoyuki
Conlin David G.
Daley, Jr. William J.
Nguyen Tiep H.
Sharp Kabushiki Kaisha
Sikes William L.
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