Patent application number | Description | Published |
20080266637 | OPTICAL APPARATUS WITH REDUCED EFFECT OF MIRROR EDGE DIFFRACTION - A micromirror for use in an optical apparatus may comprise a reflective portion, configured to be rotatable about a switching axis and an attenuation axis that is different from the switching axis. The reflective portion may include an edge that is substantially parallel to the attenuation axis. The edge may include one or more edge features that protrude above a plane of the micromirror surface and/or are submerged below the plane of the micromirror surface, and/or have an edge shape that deviates from a straight line. Alternatively, an array of micromirrors may have mirrors characterized by sawtooth features disposed along edges that are substantially parallel to the attenuation axis. | 10-30-2008 |
20100156958 | METHODS AND SYSTEMS FOR MULTIPLE PRIMARY COLOR DISPLAY - Methods and systems for multiple primary color display are provided. Methods and systems of the present invention improve the spectrum efficiency of a color display system, and provide enhanced brightness and color gamut. In an embodiment, methods and systems of the present invention improve the brightness of a color display system employing a high pressure lamp by efficiently incorporating lights components of the lamp output that are outside the red, green, and blue spectrum in creating the color image. | 06-24-2010 |
20120069269 | METHODS AND SYSTEMS FOR MULTIPLE PRIMARY COLOR DISPLAY - Methods and systems for multiple primary color display are provided. Methods and systems of the present invention improve the spectrum efficiency of a color display system, and provide enhanced brightness and color gamut. In an embodiment, methods and systems of the present invention improve the brightness of a color display system employing a high pressure lamp by efficiently incorporating lights components of the lamp output that are outside the red, green, and blue spectrum in creating the color image. | 03-22-2012 |
20120128246 | METHODS AND SYSTEMS FOR COLOR MANAGEMENT IN DISPLAY SYSTEMS - A method of processing an input image includes receiving an input signal associated with the input image. The input signal includes a plurality of components. The method also includes determining a minimum component of the plurality of components and determining a white signal level as a function of the minimum component. The method further includes multiplying the white signal level by a normalized value computed using a component of the plurality of components to provide a scaled white signal level. | 05-24-2012 |
20120237218 | WAVELENGTH SWITCH SYSTEM USING ANGLE MULTIPLEXING OPTICS - Optical switches can include collimator elements that accommodate two or more optical ports. This increases the number of ports the switch can accommodate without having to increase the size of other optical components within the switch. Separate deflectors can be used to accommodate optical signals from two different groups of ports. In some embodiments cross-coupling of signals between the two groups can be accomplished through use of re-direction optics. | 09-20-2012 |
20120275744 | PORT ARRAY TOPOLOGY FOR HIGH PORT COUNT WAVELENGTH SELECTIVE SWITCH - An optical apparatus can include an optical port array having an M×N array of fiber collimator ports. The array of ports is configured such that there is a gap within each column of ports located between two rows of ports. The gap is wide enough to permit a hitless beam switching trajectory to pass between the two rows of ports from one side of the array of ports to an opposite side. | 11-01-2012 |
20130027436 | LASER SCROLLING COLOR SCHEME FOR PROJECTION DISPLAY - Methods and systems for improved optical efficiency and brightness of display systems are provided herein. Embodiments use laser light sources in substantially continuous mode, thereby increasing the maximum overall output of an optical system. Embodiments exploit the small étendue of laser sources to lower the loss of throughput of an optical system. Embodiments enable a scrolling color scheme that allows a display system to be illuminated with two or more colors at any given time, thereby increasing the brightness of the display system. Embodiments can be used with liquid crystal displays and/or digital mirror displays. Embodiments can be used in single-panel and/or two-panel display systems. | 01-31-2013 |
20130032845 | HIGH TEMPERATURE GOLD-FREE WAFER BONDING FOR LIGHT EMITTING DIODES - A vertical GaN-based LED is made by growing an epitaxial LED structure on a silicon wafer. A silver layer is added and annealed to withstand >450° C. temperatures. A barrier layer (e.g., Ni/Ti) is provided that is effective for five minutes at >450° C. at preventing bond metal from diffusing into the silver. The resulting device wafer structure is then wafer bonded to a carrier wafer structure using a high temperature bond metal (e.g., AlGe) that melts at >380° C. After wafer bonding, the silicon is removed, gold-free electrodes (e.g., Al) are added, and the structure is singulated. High temperature solder (e.g., ZnAl) that is compatible with the electrode metal is used for die attach. Die attach occurs at >380° C. for ten seconds without melting the bond metal or otherwise damaging the device. The entire LED contains no gold, and consequently is manufacturable in a high-volume gold-free semiconductor fabrication facility. | 02-07-2013 |
20130082274 | LIGHT EMITTING DEVICES HAVING DISLOCATION DENSITY MAINTAINING BUFFER LAYERS - A method for forming a light emitting device comprises forming a buffer layer having a plurality of layers comprising a substrate, an aluminum gallium nitride layer adjacent to the substrate, and a gallium nitride layer adjacent to the aluminum gallium nitride layer. During the formation of each of the plurality of layers, one or more process parameters are selected such that an individual layer of the plurality of layers is strained. | 04-04-2013 |
20140134775 | LIGHT EMITTING DEVICES HAVING DISLOCATION DENSITY MAINTAINING BUFFER LAYERS - A method for forming a light emitting device comprises forming a buffer layer having a plurality of layers comprising a substrate, an aluminum gallium nitride layer adjacent to the substrate, and a gallium nitride layer adjacent to the aluminum gallium nitride layer. During the formation of each of the plurality of layers, one or more process parameters are selected such that an individual layer of the plurality of layers is strained. | 05-15-2014 |
20150340555 | LIGHT EMITTING DEVICES HAVING DISLOCATION DENSITY MAINTAINING BUFFER LAYERS - A method for forming a light emitting device comprises forming a buffer layer having a plurality of layers comprising a substrate, an aluminum gallium nitride layer adjacent to the substrate, and a gallium nitride layer adjacent to the aluminum gallium nitride layer. During the formation of each of the plurality of layers, one or more process parameters are selected such that an individual layer of the plurality of layers is strained. | 11-26-2015 |
20150380612 | Color-Tunable Light Emitting Device - One aspect of the present invention is directed to a color-tunable light source including a light emitting diode die segmented into a plurality of sub-light emitting diode regions, at least one of the plurality of light emitting regions defining a first zone and at least one of the plurality of light emitting regions defining a second zone, a color conversion material such as phosphor material covering at least a top surface of each light emitting region in the first zone, a first electrical contact connected to a light emitting region in the first zone, and a second electrical contact connected to a light emitting region in the second zone. A current applied to the first electrical contact drives the light emitting regions in the first zone and a second current applied to the second electrical contact drives the light emitting regions in the second zone. In one embodiment the light source further includes a second color conversion material covering each of the light emitting regions in the first zone and the second zone. In another embodiment, the light source further includes a second color conversion material covering at least a top surface of each of the light emitting regions in the second zone. | 12-31-2015 |
Patent application number | Description | Published |
20100100104 | SYSTEMS FOR REDUCING PRESSURE IN AN ORGAN - Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus. | 04-22-2010 |
20100119696 | MANUFACTURE OF AN ORGAN IMPLANT - Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus. | 05-13-2010 |
20100121248 | APPARATUS FOR REDUCING PRESSURE IN AN ORGAN - Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus. | 05-13-2010 |
20100121249 | METHODS FOR REDUCING PRESSURE IN AN ORGAN - Methods, system and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable channel into the selected area of the organ using a delivery apparatus. | 05-13-2010 |
20110118745 | METHODS, SYSTEMS AND APPARATUS FOR RELIEVING PRESSURE IN AN ORGAN - Methods, systems and apparatus for relieving pressure in an organ such as, but not limited to, the eye are disclosed. The method includes implanting a bioabsorbable, channel into the selected area of the organ using a delivery apparatus. | 05-19-2011 |
20120197175 | METHODS, SYSTEMS AND APPARATUS FOR RELIEVING PRESSURE IN AN ORGAN - The invention generally relates to shunts in which at least a portion of the body includes a drug. | 08-02-2012 |