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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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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