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Browse by Category: Main > Optical & Optics
Class Information
Number: 353/61
Name: Optics: image projectors > Temperature control > Blower > Particular air ducts or deflector
Description: Subject matter including special passages or deflectors to direct air to certain parts of the projector for cooling thereof.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
6132049 Picture display apparatus and cooling apparatus for optical apparatus Oct. 17, 2000
6065838 Liquid crystal projector May. 23, 2000
6040877 Air-cooling apparatus for a projection television Mar. 21, 2000
6033077 Projection type picture display apparatus Mar. 7, 2000
5993008 Front liquid crystal display projector Nov. 30, 1999
5951136 Projection display apparatus Sep. 14, 1999
5860719 Optical apparatus and cooling method thereof Jan. 19, 1999
5808704 Rear projection type image display apparatus Sep. 15, 1998
5692821 Method and system for thermal management within a display device Dec. 2, 1997
5683160 Overhead projector with high illuminance lamp as light source Nov. 4, 1997
5651599 Projection type liquid crystal projector Jul. 29, 1997
5392081 Calculator projection display Feb. 21, 1995
5313234 Liquid crystal projector May. 17, 1994
5076543 Projection pad using liquid crystal panel Dec. 31, 1991
4950072 Presentation device for overhead projector Aug. 21, 1990
4910873 Image projector for photographs and other objects Mar. 27, 1990
4735500 Overhead projector Apr. 5, 1988
4682868 Thermal management system for an episcopic image projector Jul. 28, 1987
4669865 Cooling device for a light source in a copying machine Jun. 2, 1987
4582406 Photoreproduction apparatus with pulsed light projector source Apr. 15, 1986
4565430 Overhead projector Jan. 21, 1986
4258987 Pneumatic film holding device Mar. 31, 1981
4257695 Film projection gate Mar. 24, 1981
4206984 Overhead projector Jun. 10, 1980
4167310 Lamp assembly and power module for fanless microfiche reader Sep. 11, 1979
4165160 Lamp assembly and power module for fanless microfiche reader Aug. 21, 1979
4131346 Projector Dec. 26, 1978
4127323 Still projector with spare projection lamp Nov. 28, 1978
4019815 Film handling apparatus blower system Apr. 26, 1977
3985430 Image viewing apparatus Oct. 12, 1976

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