| Christie Digital Systems USA, Inc. Patent applications |
| Patent application number | Title | Published |
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| 20120069447 | APPARATUS FOR COMBINING LIGHT FROM A PLURALITY OF COHERENT LIGHT SOURCES - An apparatus for combining coherent light from a plurality of coherent light sources is provided. The apparatus comprises a plurality of light guides, each comprising: a first mirror at an entrance face, including an aperture for admitting light therein from a respective one of the plurality of coherent light sources; and a second partially-reflective mirror at an exit face. The apparatus further comprises a second stage light guide, for combining emitted light exiting the plurality of light guides, comprising: a second stage entrance face and a second stage exit face, the second stage entrance face for receiving the emitted light from each the exit face of the plurality of light guides; and a third mirror, at the second stage exit face, for reflecting the light back towards the second mirror, the third mirror comprising an exit aperture for the light to exit the second stage light guide. | 03-22-2012 |
| 20120027032 | DECOHERED LASER LIGHT PRODUCTION SYSTEM - A decohered laser light production system is provided. The decohered laser light system comprises a laser source. The system further comprises a multi-mode fiber having an input face, an output face and a body for propagating light from the input face to the output face, the input face arranged to accept laser light from the laser source, the body comprising a length such that laser light is generally decohered when exiting the output face. | 02-02-2012 |
| 20110304523 | COINCIDENT FASTENERS FOR CONFIGURABLE IMAGING SYSTEMS - A coincident fastener for use with a display unit of a configurable imaging system, comprising a screw for insertion through the display unit, wherein the screw includes a head portion, a threaded male portion at an end of the screw opposite the head portion, and an anti-rotation locking mechanism for locking the screw relative to the display unit. | 12-15-2011 |
| 20110279352 | THERMAL ACTUATOR FOR CONFIGURABLE IMAGING SYSTEMS - For use in an imaging system having a plurality of adjacent display units, the improvement comprising a thermal actuator in at least one of the display units for moving a screen thereof away from a chassis thereof when the said display unit exceeds a predetermined temperature, so as to prevent mechanical interference between the adjacent display units. | 11-17-2011 |
| 20110216205 | AUTOMATIC CALIBRATION OF PROJECTION SYSTEM USING NON-VISIBLE LIGHT - A method and apparatus for calibration of a projection system, comprising projecting visible and non-visible images on at least one image plane, detecting said non-visible images projected on the image plane, and calibrating projection of the visible images using the non-visible images. The visible and non-visible images are simultaneously projected and the non-visible images are continually monitored for automatic calibration of composite displays, without taking the projection system off-line. In addition, calibration can be maintained through continuous automatic adjustment using invisible calibration patterns, even if the system is disturbed while it is operating. | 09-08-2011 |
| 20110149491 | EXPANDING CHASSIS FOR IMAGING SYSTEMS - An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen. | 06-23-2011 |
| 20110148740 | CONFIGURABLE IMAGING SYSTEM - An imaging system is provided, the imaging system comprising at least a first and second input modules for distributing respective images and microtile units in communication with each other and the input modules, each of the input modules enabled to exchange command signals with each of the plurality of microtile units and each other in a self-organization process. When input modules encounter one another during the self-organization process, then a system master is designated based on at least one of: which of the input modules was a previous system master: which of the input modules has a newest firmware revision; which of the input modules has already organized a largest number of the microtile units in the self-organization process; and which of the input modules first discovers the other of the input modules. | 06-23-2011 |
| 20110102300 | TILED DISPLAY SYSTEM AND IMPROVEMENT THEREIN - An imaging system and improvement therein for edge blending a composite image displayed by a plurality of configurable display devices in a tiled display system or between display devices and the surrounding environment, by at least one of modifying one or more light emission characteristics in a region of the composite image adjacent the gaps or generating a pattern within the composite image that coincides with the spacing of the gaps, such that the visual seam becomes camouflaged when viewed from a distance. The light emission characteristics can, for example, include brightness and/or colour and the pattern can, for example, be a grid pattern that coincides with the spacing of the gaps. | 05-05-2011 |
| 20110019158 | ADJUSTABLE CONVERGENCE MECHANISM FOR PROJECTION DISPLAYS - A light engine for use in a projector, comprising an adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. In one embodiment, motors are mounted on fixed elements of the sub-assemblies for driving movable elements thereof, including imaging devices thereof such as digital micromirror devices. In another embodiment, manual adjustment screws are provided in place of the motors, and wedge locking mechanisms are provided for driving and locking the position of the movable elements imaging devices mounted thereon. | 01-27-2011 |
| 20110019157 | MOTORIZED ADJUSTABLE CONVERGENCE MECHANISM FOR PROJECTION DISPLAYS - A light engine for use in a projector, comprising a motorized adjustable convergence mechanism for fine adjusting the relative positions of red, green and blue channel sub-assemblies. Motors are mounted on fixed elements of the sub-assemblies for driving movable elements thereof, including imaging devices thereof such as digital micromirror devices. | 01-27-2011 |
| 20100283794 | DLP EDGE BLENDING ARTEFACT REDUCTION - A method of reducing visual artefacts in a blend zone of at least two projector images is provided. The method comprises determining a maximum intensity variance for each pixel group within a blend curve of the blend zone, the maximum intensity variance being based on a blend multiplier selected to achieve a net light intensity specific to the location of the pixel group within the blend curve. For each pixel group, a first adjusted blend multiplier is determined, wherein the blend multiplier is increased by at least a portion of the maximum intensity variance. For each pixel group, a second adjusted blend multipler is also determined, wherein the blend multiplier is decreased by at least a portion of the maximum intensity variance. The light intensity of each pixel in each pixel group is adjusted using the first and second adjusted blend multipliers specific to each pixel group. The average pixel intensity of each pixel group after application of the first and second adjusted blend multipliers remains equal to the net light intensity of the pixel group within the blend curve. | 11-11-2010 |
| 20100110308 | Method, system and apparatus for projecting visible and non-visible images - A method, apparatus and system for projecting visible and non-visible images is provided. The system and apparatus include: a visible light source and a non-visible light source; at least one light modulator enabled for receiving and modulating the visible light and non-visible light to respectively form visible images and non-visible images, the non-visible images formed independent of the visible images; and projection optics enabled for receiving and co-projecting the visible and non-visible images in alignment. Furthermore, video data for projection is formed by replacing a portion of visible bits with at least a portion of non-visible bits in a data stream, such that the visible images and the non-visible images can be co-projected upon processing the video data. | 05-06-2010 |
| 20100026973 | EXPANDING CHASSIS FOR IMAGING SYSTEMS - An expanding chassis for an imaging unit is provided, the expanding chassis for use in imaging systems having a plurality of imaging units arranged in an array. The expanding chassis comprises a rigid frame for housing a light engine and related circuitry, and for mounting a screen on a front surface of the rigid frame for use with the light engine. The expanding chassis further comprises at least one expandable interface pad on at least one side of the rigid frame. The rigid frame and the expandable interface pad have a combined thermal expansion characteristic that provides an overall expansion in the expanding chassis that substantially matches the expansion of the screen. | 02-04-2010 |
| 20090244492 | AUTOMATED GEOMETRY CORRECTION FOR REAR PROJECTION - An automated geometry correction system and method for rear-projection systems is provided. The automated geometry correction system comprises at least one fiducial placed along each edge of the image screen to permit a correspondence between the image coordinate system of the projection engine, and the screen coordinate system of the image screen. Based on the established correspondence, an image warping algorithm is used to effect an inverse distortion for matching a source image to the projection engine and the image screen, thereby effecting the geometric correction. | 10-01-2009 |
| 20090168448 | LIGHT INTEGRATOR FOR MORE THAN ONE LAMP - A light integrator is provided, the light integrator comprising a body for integrating light, the body having a length and a light egress end. The light integrator further comprises a first light entrance device for accepting light from a first lamp into the body, the first light entrance device comprising a first light entrance face, the first light entrance device located distal the light egress end. The light integrator further comprises a second light entrance device for accepting light from a second lamp, the second light entrance device comprising a second light entrance face, the second light entrance device laterally displaced from the first light entrance device in a direction generally perpendicular to the first light entrance face, such that light from the first and second lamps independently enter the integrator via the first and second light entrance devices respectively, and exit the light egress end. The second light entrance device is further displaced from the first light entrance device along the body towards the light egress end, such that each of the first and second lamps may displaced from one another along the body. | 07-02-2009 |
| 20090168426 | Optical device for adjusting the F-number of an elliptical lamp - An optical device for effectively adjusting the F-number of an elliptical lamp is provided, the elliptical lamp for producing a focussed light beam at a given focal point having a given cone angle. The optical device comprises a light interaction portion for optically interacting with the focussed light beam when the light interaction portion is in general longitudinal alignment with a light emitting aperture of the elliptical lamp, the light interaction portion for triggering optical adjustment of a cone angle of at least a high cone angle portion of the focussed light beam to a smaller cone angle. The optical device further comprises a light egress portion, coupled to the light interaction portion, for enabling exit of the focussed light beam from the optical device with an effective cone angle smaller than the given cone angle, after the cone angle of the at least the high cone angle portion of the focussed light beam has been adjusted to the smaller cone angle. | 07-02-2009 |
| 20090168025 | DECOHERED LASER LIGHT PRODUCTION SYSTEM - A decohered laser light production system is provided. The decohered laser light system comprises a laser source. The system further comprises a multi-mode fiber having an input face, an output face and a body for propagating light from the input face to the output face, the input face arranged to accept laser light from the laser source, the body comprising a length such that laser light is generally decohered when exiting the output face. | 07-02-2009 |
