Patents
Sitemap › G03 - Photography; Cinematography; Analogous techniques using waves other than optical waves; Electrography; Holography › G03B - Apparatus or arrangements for taking photographs or for projecting or viewing them; Apparatus or arrangements employing analogous techniques using waves other than optical waves; Accessories therefor › G03B 21 - Projectors or projection-type viewers; Accessories therefor
Patents for G03B 21 - Projectors or projection-type viewers; Accessories therefor (41,465)
12/1998
12/02/1998EP0799545A4 Remote interactive projector with image enhancement
12/02/1998EP0759183B1 Pivoting projection head for overhead projector
12/01/1998US5844717 Method and system for producing micropolarization panels for use in micropolarizing spatially multiplexed images of 3-D objects during stereoscopic display processes
12/01/1998US5844715 Projection screen for rear projection television set
12/01/1998US5844637 Optical device
12/01/1998US5842762 Interlaced image projection apparatus
11/1998
11/26/1998WO1998053608A1 Contrast improvement in liquid crystal light valve projectors
11/26/1998WO1998053604A1 Lcd-projector
11/26/1998WO1998053365A1 Light-modulating element and projection display
11/26/1998WO1998053364A1 Light-modulating element and projection display
11/25/1998EP0880287A1 LCD-projector
11/25/1998EP0880279A1 Contrast improvement in liquid crystal light valve projectors
11/25/1998EP0879441A1 Switchable pulldown film projection system
11/25/1998EP0879437A1 A programmable light beam shape altering device using programmable micromirrors
11/25/1998CN2298536Y Multipurpose projector
11/24/1998US5839808 Projection optical system
11/19/1998WO1998052099A1 Polarizing reflection and transmission, three dimensional image creation and display systems
11/19/1998WO1998052098A1 Notebook size lcd projector
11/19/1998CA2289936A1 Polarizing reflection and transmission, three dimensional image creation and display systems
11/19/1998CA2287347A1 Notebook size lcd projector
11/18/1998CN1199470A Optical device, polarized light illuminating apparatus and projection-type display
11/17/1998US5838836 Method and apparatus for rough cropping images
11/17/1998US5838493 Cabinet structure of multiscreen display
11/17/1998US5837346 Projection screens having light collimating and light diffusing properties
11/17/1998US5837079 Film orienting slide mounter and method
11/17/1998US5836665 Stereo-slide mount
11/17/1998US5836664 LCD projector with shift and tilt field lens
11/17/1998CA2082854C Transmission type screen and method of manufacturing thereof
11/11/1998EP0877281A1 Projection display
11/10/1998US5835293 Array of thin film actuated mirrors for use in an optical projection system and method for the manufacture thereof
11/10/1998US5835268 Screen mounting apparatus
11/10/1998US5835191 Optotype projector apparatus with variable contrast
11/10/1998US5833360 High efficiency lamp apparatus for producing a beam of polarized light
11/10/1998US5833341 Illuminating optical system and projector utilizing the same
11/10/1998US5833340 Sensory integration system and image display device and concave mirror for use in the same system
11/05/1998WO1998049599A1 Theater with multiple screen three-dimensional film projection system
11/05/1998WO1998049598A1 Method and device for cooling overhead projection modules
11/05/1998DE19718094A1 Projection head mechanism of overhead projector
11/04/1998CN1198286A Video projection apparatus and method of displaying a video image composed of pixels of a defined size
11/04/1998CN1198061A Improved mylar mirror for projection television receiver
11/04/1998CN1197937A Plano lens, rear-projection type projector screen employing the same, and rear-projection type video display apparatus
11/03/1998US5831774 Light diffusion composite
11/03/1998US5831697 For providing light to a removable light pipe
11/03/1998US5831585 Light transmission screen
11/03/1998US5829868 High intensity lighting projectors
11/03/1998US5829858 Projector system with light pipe optics
11/03/1998US5829857 Transparency folder and holder apparatus
11/03/1998US5829855 Projection-type display apparatus
11/03/1998US5829854 Image projection arrangement
11/03/1998CA2162757C Uniform-brightness, high-gain display structures and methods
10/1998
10/29/1998WO1998048324A1 Device for holding rear projection screen, method for holding rear projection screen, screen holding film body, and method for holding screen holding film body
10/29/1998WO1998048312A1 Prismatic light beam homogenizer for projection displays
10/28/1998EP0874269A1 Rear projection screen
10/28/1998EP0874268A1 Fresnel lens sheet and rear projection screen
10/28/1998CN2296026Y Metal screen for orthographic projection
10/28/1998CN1197350A Rear projection display apparatus
10/28/1998CN1197225A Projecting head mechanism of projector
10/28/1998CN1197216A Method for manufacturing thin film activated mirror array
10/27/1998US5828485 Programmable light beam shape altering device using programmable micromirrors
10/27/1998US5828427 Computer-based image display systems having direct and projection modes of viewing
10/27/1998US5826962 LCD integrated/overhead projector
10/27/1998US5826961 Rear projector employing an image display
10/27/1998US5826959 Projection image display apparatus
10/22/1998WO1998047048A1 An illumination unit and a method for point illumination of a medium
10/22/1998WO1998047042A1 An apparatus and a method for illuminating a light-sensitive medium
10/22/1998CA2235173A1 Laser projection work station and method of manufacturing panel assemblies having configured openings
10/21/1998EP0871915A2 Backprojection transparency viewer
10/20/1998US5825538 Placement tool for retro-reflective calibration points
10/20/1998US5825507 On-line microfilm storage and retrieval system
10/20/1998US5824174 Light transmission screen and its manufacturing method
10/20/1998US5823662 In an imaging system
10/20/1998US5823651 Display adapter for overhead projector presentation
10/15/1998WO1998045753A1 Rear projection screen incorporating diffuser
10/15/1998CA2285047A1 Rear projection screen incorporating diffuser
10/14/1998EP0871338A2 Projection type video image display device
10/14/1998CN1195782A 反射型投影仪 Reflection type projector
10/14/1998CN1040275C Projecting TV receiver and great picture apparatus constituted thereof
10/13/1998US5822109 Optical projection systems; preparing active matrix, depositing passivation layer, etchant stopping layer, sacrificial layer, forming array of mirror structures, removing sacrificial layer
10/13/1998US5821989 Stereoscopic 3-D viewing system and glasses having electrooptical shutters controlled by control signals produced using horizontal pulse detection within the vertical synchronization pulse period of computer generated video signals
10/13/1998US5820242 Compact integrated LCD projector
10/07/1998EP0869538A1 DC short arc lamp
10/07/1998EP0869537A1 DC arc lamp
10/07/1998EP0869388A1 Projection display having light source
10/07/1998EP0869071A2 A carrying mechanism for a portable equipment
10/07/1998EP0868683A1 Panoramic display with stationary display device and rotating support structure
10/07/1998EP0346463B1 An improved video display system
10/07/1998CN1195461A Display screens incorporating loudspeakers
10/06/1998US5818950 Speaker system and its support legs
10/06/1998US5818639 Multiscreen displaying apparatus and screen fitting structure
10/06/1998US5816675 Optical projector
10/01/1998DE19711509C1 Regulating speed of rotation of horizontal rotary storage disc for strip removed at inner course of strip coil esp for cine-film drive
09/1998
09/30/1998EP0867734A2 Illumination optical system and projection-type display apparatus
09/30/1998EP0867087A1 Video projection apparatus and method of displaying a video image composed of pixels of a defined size
09/29/1998US5815313 Light transmission screen and its manufacturing method
09/29/1998US5813817 Carrying device and carrying method
09/24/1998DE19711269A1 Presentation system for sheet representations assembled from single transparent sheets
09/23/1998EP0866360A1 Lighting device
09/23/1998EP0866359A1 Projection display device
09/22/1998US5812223 Color LCD projector with three color separating polarizing beam splitters
09/22/1998US5812211 Image signal processing apparatus for prompter
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