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Class Information
Number: 353/63
Name: Optics: image projectors > Epidiascope (i.e., selective opaque and transparency projector)
Description: Subject matter including a projector which selectively projects an image from an opaque object by light reflection therefrom or alternatively projects an image from a transparency by directing light therethrough.










Sub-classes under this class:

Class Number Class Name Patents
353/64 Plural reflectors between lamp and screen 17


Patents under this class:

Patent Number Title Of Patent Date Issued
8269874 Image display system, image input apparatus and controlling method Sep. 18, 2012
8197072 Light emitting device for portable communication device having digital light processing projector and liquid crystal display Jun. 12, 2012
8186836 Mobile Projector apparatus and method of controlling the same May. 29, 2012
8167441 Image display system and image display method May. 1, 2012
8087790 Projector Jan. 3, 2012
7938548 Projection device May. 10, 2011
7441905 Optical scanner Oct. 28, 2008
7270420 Optical scanner Sep. 18, 2007
6913359 Projection method with real object projector Jul. 5, 2005
6893132 Camera-assisted presentation system May. 17, 2005
6834968 Teleprompter with directional screen Dec. 28, 2004
6814447 Real object projector Nov. 9, 2004
6623127 System and method for enlarging a liquid crystal display screen of a personal data assistant Sep. 23, 2003
6595646 Low profile overhead projector having a foldable post Jul. 22, 2003
6582084 Projector having an inverted head optical arrangement Jun. 24, 2003
6075872 Process for illuminating artwork Jun. 13, 2000
5947577 Image pick-up device Sep. 7, 1999
5940049 Remote interactive projector with image enhancement Aug. 17, 1999
5530496 Overhead projector Jun. 25, 1996
5504544 Projector with multiple lamp light source Apr. 2, 1996
5452032 Overhead projector Sep. 19, 1995
5345282 Foldable optical apparatus Sep. 6, 1994
5325137 Overhead projector with a spatial light modulator Jun. 28, 1994
5317350 Overhead projector May. 31, 1994
5307098 Projection inspecting machine Apr. 26, 1994
5296882 Overhead projector with catadioptric fresnel lens Mar. 22, 1994
5281986 Latching mechanism for overhead projector post Jan. 25, 1994
5231433 Reflecting illumination projecting device Jul. 27, 1993
5214458 Display apparatus May. 25, 1993
5085505 Overhead projector Feb. 4, 1992
5033842 Episcopic projector Jul. 23, 1991
4988599 Electrophotographic color toner having selected index of refraction range Jan. 29, 1991
4912752 Optical projector for transparencies and opaques Mar. 27, 1990
4690527 Device for reproduction and tracing Sep. 1, 1987
4443076 Projecting apparatus Apr. 17, 1984
4343538 Projector Aug. 10, 1982
3979160 Compact overhead projector Sep. 7, 1976











 
 
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