Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465)
04/2004
04/15/2004US20040070970 Illumination system with multiple lamps
04/15/2004US20040070851 Lens moving mechanism and liquid crystal projector
04/15/2004US20040070845 Transmissive screen and rear projector
04/15/2004US20040070842 Efficient illumination systems for reduced etendue color video projection systems
04/15/2004US20040070841 Illumination systems employing corrective optics for use in reduced etendue color video projection systems
04/15/2004US20040070837 Lenticular lens sheet having light-shielding layer and method for manufacture thereof
04/15/2004US20040070829 Wire grid polarizer
04/15/2004US20040070824 Screen, its manufacturing method and image display system
04/15/2004US20040070738 Image display projector
04/15/2004US20040070737 Achromatic flat-panel camera
04/15/2004US20040070736 Six color display apparatus having increased color gamut
04/15/2004US20040070735 Lamp, condensing optical system, and image display device
04/15/2004US20040070733 Projector apparatus
04/15/2004US20040070694 Projection-type display apparatus
04/15/2004DE10342765A1 Image projection device with optical switch e.g. for theaters and lecture halls, includes rectangular beam generator for converting reflected monochromatic light beams into rectangular light beams
04/15/2004DE10254674A1 Konstruktion zum Reflektieren von Licht Structure for reflecting light
04/15/2004CA2438741A1 Wire grid polarizer
04/14/2004EP1408700A2 Highly efficient projection systems and color scrolling method therefor
04/14/2004EP1408349A2 Method for modifying a cube corner retro-reflective screen
04/14/2004EP1407619A1 Projection display device
04/14/2004EP1407618A2 Scrolling color sequential illumination system
04/14/2004CN2611945Y Horizontal liquid crystal high brightness transmission projector
04/14/2004CN2611944Y Optical regulation mechanism of back reflection projector
04/14/2004CN2611943Y Radio projector controller
04/14/2004CN1488992A Transmission-type screen and rear-projection projector
04/14/2004CN1488991A Transmission-type screen and rear-projection projector
04/14/2004CN1488990A 投射型显示装置 The projection type display apparatus
04/14/2004CN1488989A Lamp optical system for projection liquid crystal display device and projection liquid crystal display device
04/14/2004CN1488988A Display device using photo-illuminating extingaishing apparatus and method for displaying picture using same
04/14/2004CN1488986A Multi-layer optical filtering device
04/14/2004CN1488985A Apparatus and method for removing vibration for rotary disc
04/14/2004CN1488973A Light modulating device, optical device with light modulating device, and projector with said light-modulating device or optical device
04/13/2004US6721096 Polarizing beam splitter
04/13/2004US6719432 Optical assembly for rear projection television
04/13/2004US6719431 Adjusting apparatus for projector
04/13/2004US6719430 Precision optical system for display panel
04/13/2004US6719428 Projector device and projector system having irregular color and irregular luminance correction circuit
04/13/2004US6719427 Display device, projection display apparatus, driving device for light modulator, and method for driving light modulator
04/13/2004US6719426 Compound polarization beam splitters
04/08/2004WO2004029677A1 Fresnel lens sheet, transmission screen using this, and rear transmission display unit
04/08/2004WO2004001456A3 Multiple lamp illumination system
04/08/2004US20040066651 Light source system
04/08/2004US20040066554 Method for making a modified cube corner retro-reflective screen
04/08/2004US20040066495 Color wheel assembly
04/08/2004US20040066493 Projection surface
04/08/2004US20040066492 Projection type image display apparatus
04/08/2004US20040066475 Altering surface of display screen from matt to optically smooth
04/08/2004US20040066399 Freezable projection display
04/08/2004DE10246484A1 Anordnung zur Positiv- und Negativbilderzeugung bei der digitalen Projektion Arrangement for positive and negative imaging in digital projection
04/08/2004DE10245881A1 Kontrasterhöhende Bildwand Contrast-screen
04/07/2004EP1406438A2 Freezable projection display
04/07/2004EP1405530A1 Optical device for projection system
04/07/2004EP1405529A1 Projection engine
04/07/2004EP1405528A1 Projection system having low astigmatism
04/07/2004EP1405512A1 System for mounting infrared receiver behind mirror in rear projection television applications
04/07/2004EP1405264A2 Three-dimensional display systems
04/07/2004EP1405138A1 Back-projection screen
04/07/2004EP1405137A1 Achieving color balance in image projection systems by injecting compensating light
04/07/2004EP1405131A1 Electrically controllable device having variable optical qualities or system which is holographic,thermotropic or which has suspended particles
04/07/2004EP1405127A2 Beam folding with polarizing splitters
04/07/2004EP1258148B1 System and method employing led light sources for a projection display
04/07/2004CN2610365Y Projection screen of preventing interference of light
04/07/2004CN1487734A 投影电视 Projection TV
04/07/2004CN1487357A Image display screen, method for producing image display screen and image display
04/07/2004CN1487356A Illuminating apparatus and projector display device
04/07/2004CN1487324A Lens tracelling mechanism and liquid crystal projector
04/06/2004USRE38488 Optical system including a reflecting polarizer for a rear projection picture display apparatus
04/06/2004US6717626 High contrast projection television shield
04/06/2004US6715901 Image projector system having a light source that includes at least four light emitting diode modules
04/06/2004US6715890 Adjustable height apparatus of a horizontal projector
04/06/2004US6715889 Projection type display apparatus
04/06/2004US6715888 Method and system for displaying images on curved surfaces
04/06/2004US6715887 Color wheel module for image display device
04/06/2004US6715886 Optical system for display panel
04/06/2004US6715885 Display device with screen having curved surface
04/06/2004US6715882 Projection type display device
04/06/2004US6715881 Presentation support system and projector system
04/06/2004US6715880 Projector device comprising a rod integrator having at least one notch or a protruded portion
04/06/2004US6715879 Apparatus and method for a projection device wherein the polarization direction of projected light on a transmissive projection screen is changed by means of an adjustable liquid crystal device
04/01/2004WO2004027515A1 Wall roll-up screen
04/01/2004WO2004027514A2 High efficiency viewing screen
04/01/2004WO2004017124A3 Polarization converting system for liquid crystal projector
04/01/2004US20040063376 Light source apparatus its manufacturing method and apparatus reflector focal point locating method and apparatus focal point locating light source discharge lamp emittion position locating method and apparatus and discharge lamp-reflector positioning method and apparatus
04/01/2004US20040062045 Structure for reflection of light
04/01/2004US20040062044 Illumination apparatus and image projection apparatus using the illumination apparatus
04/01/2004US20040061935 Projection screen and method for manufacturing the same
04/01/2004US20040061840 Projection coupler with contrast ribs
04/01/2004US20040061837 Image display apparatus
04/01/2004US20040061836 Scrolling projection system and method
04/01/2004US20040061815 Arrangement for generating positive and negative images in digital projection
04/01/2004US20040061676 Anti-piracy protection system and methodology
04/01/2004DE10336817A1 Linsenbewegungsmechanismus und Flüssigkeitskristallprojektionseinrichtung Lens moving mechanism and liquid crystal projection device
04/01/2004DE10200400B4 Anzeigevorrichtung für den Einsatz in einem Fahrzeug A display device for use in a vehicle
03/2004
03/31/2004EP1403758A2 Image printing preview device and image forming apparatus
03/31/2004EP1403696A1 Rear projection screen using a light-guide faceplate and diffusing means
03/31/2004EP1403694A1 Projection image display
03/31/2004EP1402800A1 Desk provided with projector
03/31/2004EP1402739A2 Assembly for projecting an image onto a projection surface
03/31/2004EP1402725A1 Spring bracket for mounting cathode ray tubes in projection television devices
03/31/2004EP1402724A1 Lcd projection device