Optical: systems and elements – Lens – With field curvature shaping
Reexamination Certificate
2011-01-04
2011-01-04
Harrington, Alicia M (Department: 2873)
Optical: systems and elements
Lens
With field curvature shaping
C359S753000, C359S716000
Reexamination Certificate
active
07864435
ABSTRACT:
A front projection display device includes an optical engine including an illumination system, an imaging system, and projection optics. The projection optics include a first lens group of negative refractive power that has at least one aspheric surface. The projection optics output an image at a half field angle of at least 45°, where the image has substantially no distortion. For example, when the first lens group is placed at a distance of less than 1 meter from a viewing screen, the output image has a size of about 40 inches diagonal or greater, and requires substantially no keystone correction. In other aspects, the optical engine can be implemented in a wall-mounted projection system, a multimedia system, a compact integrated monitor system, and a portable projection unit.
REFERENCES:
patent: 4070098 (1978-01-01), Buchroeder
patent: 4256373 (1981-03-01), Horimoto
patent: 4908705 (1990-03-01), Wight
patent: 4976429 (1990-12-01), Nagel
patent: 5363242 (1994-11-01), Yokota et al.
patent: 5390048 (1995-02-01), Miyatake et al.
patent: 5442484 (1995-08-01), Shikawa
patent: 5459539 (1995-10-01), Yamamoto
patent: 5510862 (1996-04-01), Lieberman et al.
patent: 5526186 (1996-06-01), Sekine
patent: 5600488 (1997-02-01), Minefuji et al.
patent: 5606459 (1997-02-01), Nakatsuji
patent: 5625495 (1997-04-01), Moskovich
patent: 5664859 (1997-09-01), Salerno et al.
patent: 5870228 (1999-02-01), Kreitzer et al.
patent: 5900987 (1999-05-01), Kreitzer
patent: 5969876 (1999-10-01), Kreitzer et al.
patent: 5978150 (1999-11-01), Hamanishi et al.
patent: 6109767 (2000-08-01), Rodriguez
patent: 6124979 (2000-09-01), Hirata et al.
patent: 6137638 (2000-10-01), Yamagishi et al.
patent: 6179426 (2001-01-01), Rodriguez, Jr. et al.
patent: 6188522 (2001-02-01), Kimura et al.
patent: 6188523 (2001-02-01), Choi
patent: 6224216 (2001-05-01), Parker et al.
patent: 6275343 (2001-08-01), Takamoto et al.
patent: 6299313 (2001-10-01), Hirata et al.
patent: 6334687 (2002-01-01), Chino et al.
patent: 6439726 (2002-08-01), Piehler
patent: 6476981 (2002-11-01), Shikama
patent: 6540366 (2003-04-01), Keenan et al.
patent: 6542308 (2003-04-01), Hirata et al.
patent: 6542316 (2003-04-01), Yoneyama
patent: 6560041 (2003-05-01), Ikeda et al.
patent: 6578999 (2003-06-01), Schmidt et al.
patent: 6580469 (2003-06-01), Rieche et al.
patent: 6604829 (2003-08-01), Rodriguez, Jr.
patent: 6624952 (2003-09-01), Kuwa et al.
patent: 6896375 (2005-05-01), Peterson et al.
patent: 6937401 (2005-08-01), Sugano
patent: 6962417 (2005-11-01), Teng et al.
patent: 6975460 (2005-12-01), Ikeda et al.
patent: 7009765 (2006-03-01), Gohman
patent: 7123426 (2006-10-01), Lu et al.
patent: 7126767 (2006-10-01), Lu
patent: 7150537 (2006-12-01), Peterson et al.
patent: 7271964 (2007-09-01), Rodriguez et al.
patent: 2002/0057505 (2002-05-01), Sato
patent: 2002/0060859 (2002-05-01), Yoneyama
patent: 2002/0154418 (2002-10-01), Shikama
patent: 2003/0137744 (2003-07-01), Kuwa et al.
patent: 2003/0231261 (2003-12-01), Bassi et al.
patent: 2004/0080720 (2004-04-01), Saito
patent: 2004/0223123 (2004-11-01), Engle et al.
patent: 2004/0233394 (2004-11-01), Gohman
patent: 2005/0083486 (2005-04-01), Johnson
patent: 2005/0105055 (2005-05-01), Olson et al.
patent: 2005/0122484 (2005-06-01), Rodriguez, Jr. et al.
patent: 2007/0201005 (2007-08-01), Rhodes et al.
patent: 29 20 360 (1980-11-01), None
patent: 103 07 740 (2004-09-01), None
patent: 62-201737 (1987-12-01), None
patent: 02-027390 (1990-02-01), None
patent: 02-196230 (1990-08-01), None
patent: 02-230288 (1990-09-01), None
patent: 03-027085 (1991-02-01), None
patent: 03-056951 (1991-03-01), None
patent: 07-151971 (1995-06-01), None
patent: 10-206969 (1998-08-01), None
patent: 2002-082387 (2002-03-01), None
patent: 2003-015221 (2003-01-01), None
patent: 2003-057545 (2003-02-01), None
patent: 2003-330108 (2003-11-01), None
patent: 2004-245893 (2004-09-01), None
patent: WO 97/16927 (1997-05-01), None
patent: WO 00/67059 (2000-11-01), None
patent: WO 2004/109365 (2004-12-01), None
Stupp, E.H. & Brennesholtz, M.S.; Projection Displays; John Wiley & Sons Ltd. (1999); pp. 146-150 and 205-208.
Product Brochure, “Display Technologies by Carl Zeiss”, Carl Zeiss Jena GmbH, Jena, Germany (date unknown).
Haushalter William E.
Hughes Patricia M.
Lu Kai Chang
Rodriguez, Jr. Ernesto M.
3M Innovative Properties Company
Harrington Alicia M
LandOfFree
Projection display device for multimedia and wall display... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Projection display device for multimedia and wall display..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Projection display device for multimedia and wall display... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2688465