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Class Information
Number: 353/95
Name: Optics: image projectors > Film gate
Description: Subject matter including structure in the optical path which positions a film strip in the focal plane of the projector and masks the film edges so that a single frame or picture area is projected.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6793349 |
Image projector for use with luminaires |
Sep. 21, 2004 |
| 6767101 |
Film scanning device for receiving either strip film or a slide mount utilizing a single photographic sensor |
Jul. 27, 2004 |
| 6736517 |
Dual mode laser projection system for electronic and film images |
May. 18, 2004 |
| 6588904 |
System for compensating for film flutter in a motion picture projector |
Jul. 8, 2003 |
| 6354706 |
Free wheeling sprocket rotary gate for motion picture film |
Mar. 12, 2002 |
| 6313870 |
Modular photographic film digitizing apparatus |
Nov. 6, 2001 |
| 6239863 |
Removable cover for protecting a reticle, system including and method of using the same |
May. 29, 2001 |
| 6079832 |
Annotation displaying projector |
Jun. 27, 2000 |
| 5915818 |
Image input apparatus |
Jun. 29, 1999 |
| 5692818 |
Film viewer |
Dec. 2, 1997 |
| 5617185 |
Method and apparatus for positioning film in a photographic film printer |
Apr. 1, 1997 |
| 5461492 |
Film scanner with in-line dual scanning gates |
Oct. 24, 1995 |
| 5428415 |
Slide projector for front and rear projection |
Jun. 27, 1995 |
| 5337120 |
Scanning apparatus gate drive system and method |
Aug. 9, 1994 |
| 5323206 |
Optical chassis |
Jun. 21, 1994 |
| 5223870 |
Overhead projector with image direction adjusting device |
Jun. 29, 1993 |
| 5013148 |
Projector for transparent file sheet |
May. 7, 1991 |
| 4979814 |
Viewing of developed roll of slide film |
Dec. 25, 1990 |
| 4912751 |
Method and device for establishing and writing a luminous pattern |
Mar. 27, 1990 |
| 4858003 |
Mechanism for handling slides and film strips |
Aug. 15, 1989 |
| 4770525 |
Liquid crystal projector |
Sep. 13, 1988 |
| 4735499 |
Film carrier support mechanism for film projector |
Apr. 5, 1988 |
| 4730919 |
Slide viewer |
Mar. 15, 1988 |
| 4634245 |
Cartridge placement holder |
Jan. 6, 1987 |
| 4575231 |
Positioning device for mounted film |
Mar. 11, 1986 |
| 4575230 |
Transparent contoured support plate for film |
Mar. 11, 1986 |
| 4548486 |
Transparency mount providing rotatable projection image |
Oct. 22, 1985 |
| 4534631 |
Slide guide adjusting device at slide projector |
Aug. 13, 1985 |
| 4466716 |
Slide projector having two image-projection systems which operate with a single slide tray |
Aug. 21, 1984 |
| 4455066 |
Transport for display terminal |
Jun. 19, 1984 |
| 4435054 |
Film guide assembly |
Mar. 6, 1984 |
| 4402583 |
Film reader |
Sep. 6, 1983 |
| 4396262 |
Hand held transparency projector with simple advance mechanism |
Aug. 2, 1983 |
| 4390257 |
Hand held viewer for various size films |
Jun. 28, 1983 |
| 4374611 |
Compact X-Y positioning mechanism for microfiche |
Feb. 22, 1983 |
| 4371241 |
Moving picture camera in which constant speed zooming is effected |
Feb. 1, 1983 |
| 4363538 |
Device for holding a film on a focal plane |
Dec. 14, 1982 |
| 4353646 |
Apparatus for positioning originals in photographic copying machines |
Oct. 12, 1982 |
| 4334768 |
Receptacle for negative carriers |
Jun. 15, 1982 |
| 4311370 |
Film reader |
Jan. 19, 1982 |
| 4270850 |
Microimage storage and retrieval apparatus |
Jun. 2, 1981 |
| 4258987 |
Pneumatic film holding device |
Mar. 31, 1981 |
| 4257695 |
Film projection gate |
Mar. 24, 1981 |
| 4247183 |
Microfilm cassette |
Jan. 27, 1981 |
| 4203657 |
Micro image cassette and viewer |
May. 20, 1980 |
| 4203658 |
Micro image storage and retrieval apparatus |
May. 20, 1980 |
| 4198137 |
Microfilm reader/printer with normally open and removable glass flat assembly |
Apr. 15, 1980 |
| 4188100 |
Rotary slide carrier system |
Feb. 12, 1980 |
| 4188101 |
Rotatable slide holder |
Feb. 12, 1980 |
| 4184754 |
Overhead projector |
Jan. 22, 1980 |
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