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Class Information
Number: 348/758
Name: Television > Video display > Projection device > Plural serial light modulators
Description: Subject matter including two or more devices placed in sequence, each device imparting image information based on a video signal to a beam of source illumination, wherein the resulting images are coextensively projected onto a screen.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7416306 |
Laser projector |
Aug. 26, 2008 |
| 7408527 |
Light emitting device driving method and projection apparatus so equipped |
Aug. 5, 2008 |
| 7401925 |
Image projection system |
Jul. 22, 2008 |
| 7396131 |
Projection assembly |
Jul. 8, 2008 |
| 7394597 |
SLM projection display with series DMD illuminator |
Jul. 1, 2008 |
| 7390094 |
Method and apparatus to achieve a neutral dark state in image projection systems |
Jun. 24, 2008 |
| 7390095 |
Projector |
Jun. 24, 2008 |
| 7387391 |
Apparatus and method for mounting imagers on stress-sensitive polarizing beam splitters |
Jun. 17, 2008 |
| 7387389 |
Image display system and method |
Jun. 17, 2008 |
| 7384153 |
Light source device and projector |
Jun. 10, 2008 |
| 7364302 |
Projection display system using multiple light sources and polarizing element for using with same |
Apr. 29, 2008 |
| 7354162 |
Projector |
Apr. 8, 2008 |
| 7320521 |
Optical engine architectures |
Jan. 22, 2008 |
| 7319439 |
Image display device and projector |
Jan. 15, 2008 |
| 7317578 |
Imager to imager relay lens system |
Jan. 8, 2008 |
| 7303284 |
Image projecting apparatus |
Dec. 4, 2007 |
| 7303288 |
Image display device |
Dec. 4, 2007 |
| 7281803 |
Polarization conversion assembly to complement angular transmission distribution of polarizing light modulator |
Oct. 16, 2007 |
| 7268837 |
Method and system for automated convergence and focus verification of projected images |
Sep. 11, 2007 |
| 7232223 |
Illumination optical system and projection display optical system |
Jun. 19, 2007 |
| 7232227 |
Image display device |
Jun. 19, 2007 |
| 7224335 |
DMD-based image display systems |
May. 29, 2007 |
| 7222965 |
Optical unit and a projection image display apparatus using the same |
May. 29, 2007 |
| 7213922 |
Projector |
May. 8, 2007 |
| 7215362 |
Auto-calibration of multi-projector systems |
May. 8, 2007 |
| 7175279 |
Two-stage projection architecture |
Feb. 13, 2007 |
| 7167297 |
Micromirror array |
Jan. 23, 2007 |
| 7118225 |
Illumination system |
Oct. 10, 2006 |
| 7118230 |
Holder frame, optical device and projector |
Oct. 10, 2006 |
| 7114816 |
Fixing plate, optical device and projector |
Oct. 3, 2006 |
| 7111942 |
Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein |
Sep. 26, 2006 |
| 7108377 |
Video light producing device and projection type video display |
Sep. 19, 2006 |
| 7108378 |
Method and devices for displaying images for viewing with varying accommodation |
Sep. 19, 2006 |
| 7015983 |
Projection system utilizing fiber optic illumination |
Mar. 21, 2006 |
| 6995810 |
Method and system for automated convergence and focus verification of projected images |
Feb. 7, 2006 |
| 6953249 |
Method and devices for displaying images for viewing with varying accommodation |
Oct. 11, 2005 |
| 6952195 |
Image display device |
Oct. 4, 2005 |
| 6935745 |
Optical device, method for manufacturing optical device, and projector |
Aug. 30, 2005 |
| 6854848 |
Optical device and projector |
Feb. 15, 2005 |
| 6751006 |
Processing techniques for superimposing images for image projection |
Jun. 15, 2004 |
| 6648474 |
Projection apparatus |
Nov. 18, 2003 |
| 6426781 |
Laser video projector |
Jul. 30, 2002 |
| 6417892 |
Color filters, sequencers and displays using color selective light modulators |
Jul. 9, 2002 |
| 6359662 |
Method and system for compensating for defects in a multi-light valve display system |
Mar. 19, 2002 |
| 6188507 |
Variable acousto-optic spectrum projector and method of operation |
Feb. 13, 2001 |
| RE36725 |
Projection-type display device |
Jun. 6, 2000 |
| 5990983 |
High resolution image projection system and method employing lasers |
Nov. 23, 1999 |
| 5978142 |
Image display apparatus with modulators for modulating picture elements in an image |
Nov. 2, 1999 |
| 5831699 |
Display with inactive portions and active portions, and having drivers in the inactive portions |
Nov. 3, 1998 |
| 5777696 |
Compact projection apparatus for generating high-quality images |
Jul. 7, 1998 |
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