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Class Information
Number: 353/97
Name: Optics: image projectors > Light shield, mask, hood, or diaphragm
Description: Subject matter including opaque or translucent light limiting or controlling means such as a diaphragm, hood, curtain, aperture plate, framing plate, light baffle or shield.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7611247 |
Illumination aperture for projection display |
Nov. 3, 2009 |
| 7607785 |
Projection lens and projector |
Oct. 27, 2009 |
| 7600931 |
Lens cap device |
Oct. 13, 2009 |
| 7591560 |
Reflection optical system and projection display apparatus using the same |
Sep. 22, 2009 |
| 7588337 |
Optical system and image projection apparatus |
Sep. 15, 2009 |
| 7575330 |
Method and apparatus for increasing effective contrast radio and brightness yields for digital light valve image projectors |
Aug. 18, 2009 |
| 7566134 |
Protection type display device |
Jul. 28, 2009 |
| 7562985 |
Mirror assembly with integrated display device |
Jul. 21, 2009 |
| 7530698 |
Positioning device for a projection apparatus |
May. 12, 2009 |
| 7530695 |
Projector |
May. 12, 2009 |
| 7517092 |
Method and system for dynamic gradient light filtering |
Apr. 14, 2009 |
| 7517094 |
Projection device |
Apr. 14, 2009 |
| 7517088 |
Light projector |
Apr. 14, 2009 |
| 7494228 |
Compact mixing cavity for multiple colors of LEDs |
Feb. 24, 2009 |
| 7488077 |
Objective for a projection apparatus, and corresponding front-projection or backprojection apparatus |
Feb. 10, 2009 |
| 7488079 |
System and method for projecting images onto a moving screen |
Feb. 10, 2009 |
| 7477035 |
Dynamic aperture driving apparatus and method for reducing vibration |
Jan. 13, 2009 |
| 7472998 |
Variable aperture display device |
Jan. 6, 2009 |
| 7470030 |
Cabinet-surface-mounted projection lens and methods |
Dec. 30, 2008 |
| 7452085 |
Dynamically adjustable fold-mirror assembly for projection device |
Nov. 18, 2008 |
| 7453070 |
Methods and apparatus for beam density measurement in two dimensions |
Nov. 18, 2008 |
| 7438423 |
Illumination system and projection system incorporating same |
Oct. 21, 2008 |
| 7431464 |
Projection display system with diffractive linear display device |
Oct. 7, 2008 |
| 7413314 |
Optical system with iris controlled in real time |
Aug. 19, 2008 |
| 7413313 |
Optical shutter with rotational axis in light path of projection device |
Aug. 19, 2008 |
| 7399093 |
Reflection mirror of projection television and fabrication method thereof |
Jul. 15, 2008 |
| 7399088 |
Pupil mismatch in a collimated display system |
Jul. 15, 2008 |
| 7397536 |
Projection image display apparatus |
Jul. 8, 2008 |
| 7394057 |
Illuminating device and image display device using the same |
Jul. 1, 2008 |
| 7390098 |
Projection lens, and projection display apparatus and rear projection display apparatus using the projection lens |
Jun. 24, 2008 |
| 7387388 |
Illumination system using polarization conversion |
Jun. 17, 2008 |
| 7377651 |
Image projection lighting devices with visible and infrared imaging |
May. 27, 2008 |
| 7374290 |
Projection type display device |
May. 20, 2008 |
| 7370972 |
Two-dimensional image display device |
May. 13, 2008 |
| 7364310 |
Image projection system |
Apr. 29, 2008 |
| 7364309 |
Image projector and image projecting method |
Apr. 29, 2008 |
| 7362506 |
Ultra-bright light engine for projection displays |
Apr. 22, 2008 |
| 7347569 |
Correcting apparatus for projection system |
Mar. 25, 2008 |
| 7344256 |
Projection type image display apparatus |
Mar. 18, 2008 |
| 7344255 |
Light amount adjusting apparatus and projector using the same |
Mar. 18, 2008 |
| 7338174 |
Shutter device and projection type video display |
Mar. 4, 2008 |
| 7329035 |
Child's nightlight |
Feb. 12, 2008 |
| 7325933 |
Projection type video display apparatus |
Feb. 5, 2008 |
| 7322706 |
Device for adjusting light intensity for discharge lamp projectors |
Jan. 29, 2008 |
| 7318645 |
Beam splitter |
Jan. 15, 2008 |
| 7300158 |
Projection display apparatus |
Nov. 27, 2007 |
| 7287864 |
Light amount adjusting device and projector using the same |
Oct. 30, 2007 |
| 7286278 |
Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates |
Oct. 23, 2007 |
| 7284868 |
Compact projection systems using multiple light sources |
Oct. 23, 2007 |
| 7278746 |
Motorized blend alignment tool |
Oct. 9, 2007 |
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