Optical: systems and elements – Lens – With field curvature shaping
Reexamination Certificate
2007-06-21
2009-06-09
Collins, Darryl J (Department: 2873)
Optical: systems and elements
Lens
With field curvature shaping
C359S754000, C359S821000
Reexamination Certificate
active
07545572
ABSTRACT:
The invention relates to a projection objective with fixed focal length for digital projection, characterized by the following features:a first optical subassembly of several lenses seated in a first objective housing;a second optical subassembly of several lenses seated in a second objective housing; anda third objective housing that, in the region of one end, accepts the first objective housing, and in the region of the other end, accepts the second objective housing.Such an objective is designed to be structurally simple and makes possible a simple and precise assembly.
REFERENCES:
patent: 4472031 (1984-09-01), Muryoi
patent: 6382799 (2002-05-01), Nishikawa et al.
patent: 6429980 (2002-08-01), Ishikawa
patent: 1024395 (2000-08-01), None
patent: 62-102216 (1987-05-01), None
patent: 8-327870 (1996-12-01), None
patent: 2000-171702 (2000-06-01), None
patent: 2000-214367 (2000-08-01), None
patent: 2003-337272 (2003-11-01), None
patent: 2006-85091 (2006-03-01), None
Yoder, “XP-002409351 “Mounting Optics in Optical Instruments”,” (pp. 117-121), (2002).
Linos, “Linos XP-002430577,” Catalog 2003, (p. L14), (2003).
Hitachi Ltd., “English Language Translation of Abstract of Japanese Patent Document 62-102216,” (1 pg.), (May 12, 1987).
Nikon Corp., “English Language Translation of Abstract of Japanese Patent Document 8-327870,” (1 pg.), (Dec. 13, 1996).
Sony Corp., “English Language Translation of Abstract of Japanese Patent Document 2000-171702,” (1 pg.), (Jun. 23, 2000).
Olympus Optical Co. Ltd., “English Language Translation of Abstract of Japanese Patent Document 2000-214367,” (1 pg.), (Aug. 4, 2000).
Nikon Corp., “English Language Translation of Abstract of Japanese Patent Document 2003-337272,” (1 pg.), (Nov. 28, 2003).
Nitto Kogaku KK, “English Language Translation of Abstract of Japanese Patent Document 2006-85091,” (1 pg.), (Mar. 30, 2006).
Bretthauer Bernward
Linge Horst
Muller Jens
Collins Darryl J
Jos. Schneider Optische Werke GmbH
Price Heneveld Cooper DeWitt & Litton LLP
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