Abstract: A lamp has an optically transmissive enclosure and a base. A tower extends from the base into the enclosure and supports an LED assembly in the enclosure. The LED assembly comprises a plurality of LEDs operable to emit light when energized through an electrical path from the base. The tower and the LED assembly are arranged such that the plurality of LEDs are disposed about the periphery of the tower in a band and face outwardly toward the enclosure to create a source of the light that appears as a glowing filament. The tower forms part of a heat sink that transmits heat from the LED assembly to the ambient environment. The LED assembly has a three-dimensional shape. An electrical interconnect connects a conductor to the heat sink where the conductor is in the electrical path between the LED assembly and the base.

Abstract: A lamp has an optically transmissive enclosure and a base defining a longitudinal axis of the lamp extending from the base to the free end of the enclosure. A heat sink is at least partially located in the enclosure and includes a tower that extends along the longitudinal axis of the lamp. An LED assembly is positioned in the optically transmissive enclosure. The LED assembly comprises a lead frame circuit or a flex circuit where LEDs are attached to the circuits. The lead frame and flex circuit are formed into a three-dimensional shape and are thermally coupled to the tower.

Abstract: A method, at a host device (10), of managing memory (28) of a display control device (16), the memory (28) being used for storing display data sent from the host device (10) to the display control device (16) for display. The method involves maintaining a map (18) at the host device (10) corresponding to the memory (28) at the display control device, the map (18) indicating locations corresponding to addresses of the memory (28) at which data is stored or not. The map (18) is used to determine a size of a portion of the display data, and a location on the map (18) where the portion of display data would fit into the memory. An address in the memory (28) corresponding to the determined location on the map (18), together with the portion of display data, is then sent to the display control device (16), and the location on the map (18) corresponding to the address in the memory (28) is updated to indicate that the address has data stored in it.

Abstract: In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

Abstract: A gas cooled LED lamp and submount is disclosed. The centralized nature of the LEDs allows the LEDs to be configured near the central portion of the optical envelope of the lamp. In example embodiments, the LEDs can be cooled and/or cushioned by a gas in thermal communication with the LED array to enable the LEDs to maintain an appropriate operating temperature for efficient operation and long life. In some embodiments, the LED assembly is mounted on a glass stem. In some embodiments a thermal resistant path is created that prevents overtemperature of the LED array during the making of the lamp. In some embodiments the LED assembly comprises a lead frame and/or metal core board that is bent into a three-dimensional shape to create a desired light pattern in the enclosure or an extruded submount formed into a three-dimensional shape.

Abstract: A lamp has an optically transmissive enclosure and a base defining a longitudinal axis of the lamp that extends from the base to the free end of the enclosure. An LED assembly is positioned in the optically transmissive enclosure. The LED assembly includes LEDs operable to emit light when energized through an electrical path from the base. The LED assembly is arranged such that the plurality of LEDs face perpendicularly to the longitudinal axis of the lamp. The emission profile of the LEDs being at least 120 degrees FWHM.

Abstract: In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. A board supports lamp electronics for the lamp and is located in the enclosure. The LED array is mounted to the board and LEDs are mounted on a submount formed to have a three dimensional shape. The board is electrically coupled to the LED array and the submount may be thermally coupled to the gas for dissipating heat from the plurality of LEDs.

Abstract: A system to enable a computer to provide output to a display over a general-purpose data transmission medium, such as USB. The system includes provision of a plurality of display interface components, each display interface component adapted to receive display data and transmission of the display data to the display via the general-purpose data transmission medium. Each component is associated with a respective stage of operation of the system. The system is configured to use a respective one of the display interface components during each of a plurality of distinct operational stages.

Abstract: A lamp having an enclosure with a reflector and a lens where the reflector is made of thermally conductive material. A base is coupled to the enclosure. An LED is located in the enclosure and emits light when energized through an electrical path from the base. A heat sink having a heat dissipating portion that may be at least partially exposed to the ambient environment and heat conducting portion that is thermally coupled to the LED. The reflector is thermally coupled to the heat sink and is exposed to the exterior of the lamp such that heat from the heat sink may be dissipated to the ambient environment at least partially through the reflector.

Abstract: A LED lamp comprises an enclosure containing a reflective surface and an optically transmissive exit surface and a base. A LED assembly is mounted on a submount, is located in the enclosure and is operable to emit light when energized through an electrical path from the base. The submount comprises a connector portion having a first electrical contact that is in the electrical path. A first spring contact is electrically coupled to lamp electronics where the lamp electronics and the first spring contact are in the electrical path. A heat sink comprises a heat dissipating portion that is at least partially exposed to the ambient environment and a heat conducting portion that is thermally coupled to the LED assembly. The connector portion is inserted into the heat sink such that the first electrical contact creates an electrical contact coupling with the first spring contact.

Abstract: A method for providing an optical element may include providing an optical feature in the optical element that spreads or distributes light passing through the optical element. The method may also include providing a texturing in at least a portion of the optical feature of the optical element.

Abstract: An indirect troffer. Embodiments of the present invention provide a troffer-style fixture that is particularly well-suited for use with solid state light sources, such as LEDs. The troffer comprises light bars mounted proximate to a back reflector. A back reflector defines a reflective interior surface of the lighting troffer. To facilitate thermal dissipation, the light bar can act as a heat sink. A portion of the heat sink is exposed to the ambient room environment while another portion functions as a mount surface for the light sources that faces the back reflector. One or more light sources disposed along the light bar mount surface emit light into an interior cavity where it can be mixed and/or shaped prior to emission. In some embodiments, one or more lens plates extend from the light bar out to the back reflector.

Abstract: A high-efficiency LED lamp is disclosed. Embodiments of the present invention provide a high-efficiency, high output solid-state lamp. The lamp includes an LED assembly, and an optical element or diffuser disposed to receive light from the LED assembly. The optical element includes a primary exit surface for the light, wherein the primary exit surface is at least about 1.5 inches from the LED assembly. In example embodiments, the optical element is roughly cylindrical in shape. An LED lamp according to some embodiments of the invention has an efficiency of at least 150 lumens per watt. In some embodiments, the lamp has a light output of at least 1200 lumens. In some embodiments, the LED lamp produces light with a color rendering index (CRI) of at least 90 and a correlated color temperature of from 2800 to 3000 K.

Abstract: In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

Abstract: The present disclosure discloses LED lamps and enclosures comprising light transparent polymer coatings comprising light diffusing particles as well as methods for providing improved luminous intensity distribution. More particularly, the present disclosure relates to enclosures comprising light-transparent polymer coatings comprising a light diffusing particles on at least one surfaces of the enclosure of an LED lamp.

Abstract: In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

Abstract: In one embodiment, a lamp comprises an optically transmissive enclosure. An LED array is disposed in the optically transmissive enclosure operable to emit light when energized through an electrical connection. A gas is contained in the enclosure to provide thermal coupling to the LED array. The gas may include oxygen.

Abstract: A lamp comprises an enclosure comprising a reflector and a lens where the reflector is made of thermally conductive material. A base is coupled to the enclosure. An LED is located in the enclosure and emits light when energized through an electrical path from the base. A heat sink comprises a heat dissipating portion that may be at least partially exposed to the ambient environment and a heat conducting portion that is thermally coupled to the LED. The reflector is thermally coupled to the heat sink and is exposed to the exterior of the lamp such that heat from the heat sink may be dissipated to the ambient environment at least partially through the reflector.