Optical: systems and elements – Projection screen – Unitary sheet comprising plural refracting areas
Reexamination Certificate
2007-06-19
2007-06-19
Perkey, W. B. (Department: 2851)
Optical: systems and elements
Projection screen
Unitary sheet comprising plural refracting areas
C359S449000, C359S453000, C359S457000, C359S460000
Reexamination Certificate
active
10936210
ABSTRACT:
A screen member for a transmission screen includes: a microlens substrate, a light incident face thereof being formed with a plurality of microlenses for condensing incident light; a black matrix formed on a light emission face of the microlens substrate, which has a plurality of openings on light paths of the light transmitted by the microlenses of the microlens substrate; and a plurality of light diffusion portions for diffusing the light transmitted by each microlens of the microlens substrate. Each microlens of the microlens substrate is designed so that the light transmitting each microlens is focused on the side of the light emission face of the microlens substrate beyond the black matrix. Further, each light diffusion portion is formed into a protrusion that protrudes from the surface of the black matrix.
REFERENCES:
patent: 4953948 (1990-09-01), Ito et al.
patent: 4979801 (1990-12-01), Park
patent: 6275334 (2001-08-01), Park
patent: 6700702 (2004-03-01), Sales
patent: 6937393 (2005-08-01), Kim et al.
patent: 2004/0061945 (2004-04-01), Wolfe
patent: 58-190935 (1983-11-01), None
patent: 58-205140 (1983-11-01), None
patent: 63-212925 (1988-09-01), None
patent: 63-265235 (1988-11-01), None
patent: 64-40838 (1989-03-01), None
patent: 01-182837 (1989-07-01), None
patent: 02-239202 (1990-09-01), None
patent: 03127041 (1991-05-01), None
patent: 03-181934 (1991-08-01), None
patent: 03181934 (1991-08-01), None
patent: A-03-181934 (1991-08-01), None
patent: 3-92634 (1991-09-01), None
patent: UM-A-03-092634 (1991-09-01), None
patent: 06-202231 (1994-07-01), None
patent: 06-202233 (1994-07-01), None
patent: 7-21612 (1995-03-01), None
patent: 08-185702 (1996-07-01), None
patent: 09-311295 (1997-12-01), None
patent: 10-123623 (1998-05-01), None
patent: 10-302678 (1998-11-01), None
patent: 10-332906 (1998-12-01), None
patent: 11167168 (1999-06-01), None
patent: 11-305204 (1999-11-01), None
patent: 2001-074918 (2001-03-01), None
patent: 2001-092370 (2001-04-01), None
patent: 2002-048987 (2002-02-01), None
patent: 2002-062592 (2002-02-01), None
patent: A-2003-080598 (2003-03-01), None
patent: 2003-107560 (2003-04-01), None
patent: 2003-177476 (2003-06-01), None
patent: A-2003-240910 (2003-08-01), None
Communication from Japanese Patent Office re: related application.
Communication from Korean Patent Office re: related application.
Cruz Magda
Harness & Dickey & Pierce P.L.C.
Perkey W. B.
Seiko Epson Corporation
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