Optical element, polarization illumination device, and...

Details Optical element, polarization illumination device, and... Optical element, polarization illumination device, and...

2006-08-22

2006-08-22

Shafer, Ricky D. (Department: 2872)

Optical: systems and elements

Polarization without modulation

Polarizarion by dichroism

C359S490020, C359S490020, C359S250000, C359S253000, C359S622000, C359S627000, C359S634000, C353S020000, C353S031000, C353S034000, C353S037000, C362S019000, C349S005000

Reissue Patent

active

RE039243

ABSTRACT:
Two polarization conversion element arrays are disclosed. Each polarization conversion element array is composed of a plurality of polarization conversion elements for converting light incident upon the polarization conversion element array to a linearly polarized light beam with a predetermined polarization direction. The plurality of polarization conversion elements are disposed opposite to each other with a predetermined space provided between at about the center of the light-outgoing surface of a lens array in the direction of arrangement. Of the light beams (s-polarized+p-polarized light beams) gathered by the lens array, light beam that is not incident upon the polarization conversion element and passes through the predetermined space is a light beam including a predetermined polarized light beam (s-polarized light beam) that is primarily made to leave the array 320a and an ineffective polarized light beam (p-polarized light beam). Of the light passing through and leaving the space, the required polarized light beam alone can be made to leave as an effective light beam by providing a polarization plate or the like at the light-outgoing side of the space.

REFERENCES:
patent: 2748659 (1956-06-01), Geffcken et al.
patent: 2821114 (1958-01-01), Wiemer et al.
patent: 5096520 (1992-03-01), Faris
patent: 5283600 (1994-02-01), Imai
patent: 5381278 (1995-01-01), Shingaki et al.
patent: 5555186 (1996-09-01), Shioya
patent: 5566367 (1996-10-01), Mitsutake et al.
patent: 5626409 (1997-05-01), Nakayama et al.
patent: 5650873 (1997-07-01), Gal et al.
patent: 5729306 (1998-03-01), Miyake et al.
patent: 5751480 (1998-05-01), Kitagishi
patent: 5764412 (1998-06-01), Suzuki et al.
patent: 5865521 (1999-02-01), Hashizume et al.
patent: 5978136 (1999-11-01), Ogawa et al.
patent: 6067193 (2000-05-01), Sekine et al.
patent: 6092901 (2000-07-01), Hashizume et al.
patent: 6147802 (2000-11-01), Itoh et al.
patent: 6394607 (2002-05-01), Hashizume
patent: 6404550 (2002-06-01), Yajima
patent: 6527393 (2003-03-01), Ogawa
patent: 0 359 658 (1989-09-01), None
patent: 0 422 661 (1991-04-01), None
patent: 508 413 (1992-10-01), None
patent: 584 802 (1994-03-01), None
patent: 2 153 546 (1985-08-01), None
patent: 54-118855 (1979-09-01), None
patent: 63-182987 (1988-07-01), None
patent: 1-54401 (1989-03-01), None
patent: A-64-54401 (1989-03-01), None
patent: 2-108018 (1990-04-01), None
patent: 2-167502 (1990-06-01), None
patent: A-2-167502 (1990-06-01), None
patent: 3-126910 (1991-05-01), None
patent: 3-197920 (1991-08-01), None
patent: 3-103678 (1991-10-01), None
patent: 3-241311 (1991-10-01), None
patent: 4-13391 (1992-01-01), None
patent: 4-58214 (1992-02-01), None
patent: A-5-107505 (1993-04-01), None
patent: 5-107505 (1993-04-01), None
patent: 5-157995 (1993-06-01), None
patent: A-5-181135 (1993-07-01), None
patent: 5-181135 (1993-07-01), None
patent: A-6-82623 (1994-03-01), None
patent: 06082623 (1994-03-01), None
patent: 6-202063 (1994-07-01), None
patent: 7-5458 (1995-01-01), None
patent: A-7-43508 (1995-02-01), None
patent: 07043508 (1995-02-01), None
patent: 07072428 (1995-03-01), None
patent: 07120753 (1995-05-01), None
patent: 7-225379 (1995-08-01), None
patent: 7-294906 (1995-11-01), None
patent: A-8-114765 (1996-05-01), None
patent: 08114765 (1996-05-01), None
patent: 08221796 (1996-08-01), None
patent: A-8-234182 (1996-09-01), None
patent: 08286152 (1996-11-01), None
patent: A-8-304739 (1996-11-01), None
patent: 09105936 (1997-04-01), None
patent: 09265010 (1997-10-01), None
patent: 09318913 (1997-12-01), None
patent: 10096816 (1998-04-01), None
Patent Abstracts of Japan, JP 07 29406 A, Nov. 10, 1995.
Kunio Yoneno et al., “High Definition Front Projector Using Poly-Si TFT LCD” Conference Record of the 1991 International Display Research Conference, Oct. 15, 1991, pp. 147-150, XP000314344, Abstract, FIG. 1.

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