Abstract: A light source channel is described. The light source channel includes an extrusion forming a channel having an open length and a light source positioned within the channel. A light transfer medium is positioned above the light source and covers the open length of the channel. The light transfer medium has a cross section. A method embodiment according to the present invention produces a light source channel by installing a light engine within a channel of an extrusion and covering the channel length with a light transfer medium above the light engine. The light transfer medium has a cross-section.

Abstract: A system and method for illuminating an elongated field of view of a linear or high aspect ratio area image sensor comprises providing illumination with an elongated field shape with a plurality of discrete light sources and projecting the illumination toward an object to be imaged; wherein the illumination projected on the object is substantially spatially invariant in intensity and angular distribution along the elongated field shape on the object.

Abstract: A backlight assembly includes a lamp unit, a covering member, a panel guiding member and a lamp supporting member. The lamp unit has a first electrode and a second electrode disposed at a first side of the lamp unit and a curved portion disposed at a second side of the lamp unit that is opposite to the first side. The covering member covers at least one of a first region corresponding to the first and second electrodes and a second region corresponding to the curved portion. The panel guiding member is configured to support a display panel that displays images using light generated by the lamp unit. The lamp supporting member is configured to retain the lamp unit. Therefore, a number of inverters may be reduced, thereby lowering cost and time of manufacturing the backlight assembly. Furthermore, reliability of the backlight assembly may be enhanced.

Abstract: An LED lamp has an arrangement of LEDs that results in light emitted in a substantially spherical light field. The LED lamp has a bulb-shaped body with at least one LED at the top and a number of LEDs positioned around the circumference of the body. The LEDs are arranged such that light is emitted forward from the lamp and also from the sides of the lamp. Accordingly, the LED lamp, for example, in operation provides illumination in direction and intensity very similar to an incandescent bulb.

Abstract: A system to allow a fluorescent lamp to be dimmed or otherwise improve color performance of the lamp while maintaining a constant spectral distribution. In one embodiment, the lamp will dim in light output and not shift in color temperature. An LED array is positioned under a fluorescent lamp such that its light injects back into the lamp that part of the color spectrum that diminishes as a fluorescent lamp dims. The LED array is positioned centrally along the underside of the lamp. The light from the LED is never directly visible but shines through the lamp; the lamp acting as a diffuser. The brightness level of the LEDs can be determined as a preset level relative to a predetermined dim setting or can be regulated through an electronic monitoring sensor. The monitoring could evaluate the shift in color spectrum and or intensity and render the appropriate injection of light spectrum to maintain a constant unwavering color temperature.

Abstract: A lighted sign or lighting fixture includes a housing that contains a series of LEDs. The housing has a pair of side walls and a series of spaced apart reinforcing members that extend between and interconnect the side walls. The reinforcing members may be formed integrally with the side walls, or may be in the form of separate members that are securely attached to the side walls. An LED mounting structure, such as a PCB, may be attached to the reinforcing members, or alternatively a separate bottom wall may be secured to the reinforcing members.

Abstract: Methods of controlling a backlight unit including a plurality of solid state light emitting devices include receiving a request to set a color point of the backlight unit at a requested color point, and determining if the requested color point is within an acceptable range. In response to the requested color point being outside the acceptable range, a modified color point is selected in response to the requested color point, and a color point of the backlight unit is set at the modified color point. Corresponding solid state lighting units are also disclosed.

Abstract: A light source device includes: a light source section which comprises plural laser diodes; a pulse driving section which divides the laser diodes of the light source section into plural groups, each group having the same number of the laser diodes, and drives the laser diodes of the each group by a pulse having a predetermined period and a predetermined duty ratio; and a light source driving section which controls a phase of the pulse for the each group so that the same number of the laser diodes are emitted in succession when the laser diodes of the each group are driven by the pulse driving section.

Abstract: A collimated light source with solid-state light emitters in which the solid-state light emitter is optically coupled to a high refractive index reflector optic, which reduces the cone angle of the light input to the reflector optic. Reducing the cone angle allows the reflective surface of the reflector optic to be reduced in size compared with a conventional reflector in air. The solid-state light emitter is mounted near the light output surface to further reduce the size of the collimated light source. The highly collimated light beams of different colors generated by multiple collimated light sources enable the lighting assembly to use a decussate optical filter having dichroic filter elements to combine the light beams to provide the compact lighting assembly having a configurable output light color.

Abstract: A lighting system includes a plurality of LED lights having at least two different color LED lights. A controller is coupled to the LED lights for independently controlling the intensity of sets of different color LED lights. A program stored on a storage device is operable on the controller to control the intensity of each of the different sets of different color LED lights to produce light representative of color and intensity changes of outdoor daylight conditions.

Abstract: In accordance with certain embodiments, thermal stresses are mitigated in illumination systems by mating optical substrates with a plurality of discrete substrates each having one or more light-emitting elements thereon.

Abstract: Integrating optical systems and methods of use are described herein. In one embodiment, an integrating optical system comprises: a housing having a first and second portions; and a chamber having a diffuse reflective material and a volume formed within the portions when coupled together. The portions are separable to allow insertion and removal of at least one light treatable object in and out of the chamber. At least one aperture is formed in the chamber to couple to a light source and to direct light from the light source to at least a first portion of the diffuse reflective material. At least one holding structure supports the object within the volume at a location, wherein the diffuse reflective material, the aperture and the location ensure that the light is diffusely reflected to integrate the light and impact the object with substantially uniform light without movement of the object.

Abstract: The present invention is directed to display technologies. More specifically, various embodiments of the present invention provide projection display systems where one or more laser diodes are used as light source for illustrating images. In one set of embodiments, the present invention provides projector systems that utilize blue and/or green laser fabricated using gallium nitride containing material. In another set of embodiments, the present invention provides projection systems having digital lighting processing engines illuminated by blue and/or green laser devices. In one embodiment, the present invention provides a 3D display system. There are other embodiments as well.

Abstract: An LED-based lighting system includes a housing forming one or more apertures, a PCB having conductors on its front-side, and one or more LEDs mounted with the conductors. The PCB mounts with the conductors proximate to a top surface of the housing such that the LEDs emit light through the apertures, and heat generated by the one or more LEDs primarily dissipates through the conductors to the housing. A retrofit apparatus for a light fixture includes a PCB having conductors on its front-side thereof, and one or more LEDs mounted with the conductors. The PCB mounts with the conductors proximate to a surface of a mounting bracket that is configured for mounting to the light fixture, such that when the bracket mounts to the light fixture, heat generated by the one or more LEDs primarily dissipates through the conductors and the structural element to the light fixture.

Abstract: A modular light emitting apparatus includes a light emitting device, a connector to couple to an AC power source, an AC to DC converter, circuitry, on a first electronics module, to drive the light emitting device, and a support structure arranged to position and hold a second electronics module that conforms to a predetermined form factor.

Abstract: An LED light bulb device including a bulb body, a cap and an LED assembly. The bulb body defines an exterior surface and an interior. The cap is mounted to the bulb body, combining to define a light bulb-like structure. The LED assembly includes a substrate, LEDs, transformer circuitry and connective circuitry. The LEDs and the connective circuitry are maintained by the substrate, with the connective circuitry electrically connecting the LEDs and the transformer circuitry. The transformer circuitry is adapted to modify incoming power for powering the LEDs. The LED assembly is mounted to the light bulb-like structure such that the LEDs are disposed along the exterior surface of the bulb body, with light from the LEDs being directed inwardly into the interior and then outwardly from the interior. The LED assembly can further include a heat sink body encompassing the LEDs.

Abstract: A circuit board assembly includes a circuit board including an electrical conductor, and a light emitting element assembly. The light emitting element assembly includes a carrier mounted on the circuit board, a light emitting element mounted on the carrier, and an electrical contact held by the carrier in electrical connection with the light emitting element and the electrical conductor.

Abstract: A laser system includes a housing and a laser. The laser can be positioned in the housing such that its laser beam is transmitted at an angle and its path forms a cone as the housing rotates. The laser device may also contain two or more lasers, the angle of each laser may be the same or different, and the angular position of each laser may be fixed or variable. The laser system may be stationary or mobile and used in a variety of methods to detect an object or topography and produce a three dimensional image. That information can be further used to provide maps, terrain data, volumetric measurements, landing guidance, obstacle avoidance warnings, mining profiles and other useful material.

Abstract: An illumination apparatus includes first and second light source units. An optical axis converting element has a first surface that reflects a luminous flux emitted from the first light source unit and a second surface that reflects a luminous flux emitted from the second light source unit and is configured to reflect respective luminous fluxes emitted from the respective light source units in substantially one direction. Each of the luminous fluxes entering the optical axis converting element has different dimensions in two directions orthogonal to each other in a plane orthogonal to an emission axis of the each light source unit. The optical axis converting element is arranged such that a cross-sectional shape of the luminous flux entering each optical axis converting element taken along the surface has a short side direction in the same direction as the direction of arrangement of the first and second surfaces.

Abstract: A dual colored LED decoration lamp which includes a lamp string combined of multiple dual colored LED lights and a controller connected between the power supply and the lamp string. The lamp string includes lamp groups combined of multiple LED lights with two different colors and with their anodes and cathodes cross-linked. The multiple lamp groups are then connected in series, and each LED light in every lamp group is connected in same direction with the same colored LED light in the next lamp group. The controller controls the variation of the direction of current in aforementioned lamp strings. Thus, the lamp string is able to emit light with different colors by varying the current direction in the same lamp string through the usage of controller, and there is no need to set with multiple lamp strings.

Abstract: Provided is a light-bulb type LED lamp 10 including a plurality of LEDs 67-78, a base 12, a lighting circuit unit that converts commercial power provided through the base 12 into power for lighting the LEDs 67-78, and a heat radiation member 16 that includes a bowl-shaped portion 42. Two stages 46 and 48, extending inwards from an inner circumferential surface 44 of the bowl-shaped portion 42, are provided in a direction of a central axis X of the bowl-shaped portion 42. The LEDs 67-78 are mounted on the stages 46 and 48 in a circumferential direction around the central axis X.

Abstract: A light source assembly comprises a plurality of reflective sheets, a plurality of light emitting diodes and a printed circuit board. Each reflective sheet comprises a plate member and a plurality of openings formed on the plate member. The plurality of light emitting diodes are mounted on the printed circuit board. The plurality of reflective sheets are also mounted on the printed circuit board. The plurality of light emitting diodes are respectively located in the openings. The light emitted from the light emitting diodes is reflected by the surface of the plate member.

Abstract: An exemplary illumination device includes an enclosure, a semiconductor light source accommodated in the enclosure, and an envelope engaged with the enclosure and covering the semiconductor light source. Light generated by the semiconductor light source can project through the envelope and out of the illumination device. The semiconductor light source includes a plurality of light source modules independent from each other. A plurality of air passages are defined in each light source module for air passing therethrough to dissipate heat generated by the semiconductor light source into ambient air.

Abstract: An LED lighting system having at least one LED circuit and at least two circuits or drivers capable of receiving an AC voltage at a first frequency and having an output capable of driving the at least one LED circuit, wherein the output of each circuit or driver capable of driving the at least one LED circuit is provided to the at least one LED circuit through a circuit or sensor capable of permitting only a single output from the at least two circuits or drivers be provided to the at least one LED circuit.

Abstract: An LED lamp A1 includes at least one elongated LED unit 1 including a plurality of light emitting diodes 13, and bases 2 and 3 configured to be attached to the ends of the LED unit 1 in the longitudinal direction to receive power from outside. The lamp is configured to allow a plurality of LED units 1 to be serially connected. Such configuration contributes to reducing the manufacturing cost and facilitating the management of the products, with respect to a plurality of types of products of different lengths.

Abstract: A display device includes a generally annular display (10) and a light source (3a) disposed to oppose a rear surface of the display (10). The display (10) is indicated by a rotatable pointer (4) and includes an indicator portion (12) disposed along a trace of displacement of a tip end portion (4a) of the pointer (4), and a transparent member (20) having a light incidence surface (a light incidence portion) (21) on which light from the light source (3a) is incident. The transparent member (20) is disposed on a front side of the indicator portion (12) and spaced from a front surface of the indicator portion (12) with a clearance (K) therebetween, and extends toward a center axis of the pointer (4).

Abstract: A hazard warning light assembly includes a panel that has a top side and a bottom side. A receiver mount is attached to and extends upwardly from the top side. A stake has a top end, a bottom end and a perimeter wall extending between the top and bottom ends. The bottom end is pointed to allow the bottom end to be extendable into a ground surface. The receiver mount has a size and shape configured to receive the bottom end and support the stake in a vertical orientation. A plurality of primary light emitters is mounted to the stake. The primary light emitters are selectively turned on to emit light. A primary actuator is electrically coupled to the primary light emitters to turn the primary light emitters on or off.

Abstract: An elongated perimeter light comprising an array of light sources that are illuminated by electric power. An elongated tube is included having a lumen along its length, with the tube being substantially solid except for the lumen. A blocking element covers a lower portion of the tube along its length, with the blocking element blocking light emission from the lower portion. The array of light sources is arranged within the lumen and transmits light through the tube and from an upper surface of the tube. The tube disperses the light from the array giving the appearance that the array of light sources is a continuous light source. The array of light sources is cuttable at intervals to shorten the array while allowing the remaining light sources in the resulting cut pieces to emit light. The tube and blocking element are cuttable to match the length of the array.

Abstract: A light-emitting module includes a module substrate, semiconductor light-emitting elements and a connection substrate. On one face of the module substrate, a conductive layer is formed. The semiconductor light-emitting elements and the connection substrate are mounted on the conductive layer of the module substrate. Electric wires, which extend from a lighting circuit, are connected to the connection substrate. Power is supplied to the semiconductor light-emitting elements through the connection substrate and the conductive layer of the module substrate.

Abstract: [Purpose] A light display method is capable of providing planar light displays of various types of characters with increased degrees of freedom, by using a plurality of point light sources and making light source units interchangeable on a point light source basis. [Constitution] In a light display method making light displays of various types of characters by employing a plurality of point light sources, each light display of the characters A, N, O, and S is made by dividing and segmenting the characters into at least one or more sets of light source units a1, n1, o1, o2, o3, s1, s2, and s3 including at least one of the point light sources, having a common structure in each character A, N, O, and S or a plurality of different characters, and making illumination by light emitted from the point light source as planar illumination light.

Abstract: 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.

Abstract: The invention is directed to an ornamental pond fish feeding indicator that has a housing with an indicator end. A first LED is enclosed in the housing at the indicator end of the housing. A second LED is also enclosed in the housing at the indicator end of the housing. A temperature sensing circuit is enclosed in the housing. The temperature sensing circuit transmits a signal to the first LED and the second LED. A float is attached to the housing. Using this invention, a pond owner can simply glance at his or her pond and determine whether or not to feed their fish based on the color of the light on top. The light on top of the indicator is red when pond water is below 50 degrees Fahrenheit. If the pond water is 50 degrees or over, the light is green.

Abstract: A trolley is provided, including an illumination module disposed in a frame having a plurality of plates, wherein the illumination module includes a plurality of light emitting diodes disposed on the second surface of each plate, and each light emitting diode comprises a red light chip providing 75% to 85% of it's total light energy, a green light chip providing 5% to 15% of it's total light energy and a blue light chip providing 5% to 15% of it's total light energy.

Abstract: An electronic illuminating device includes an illuminating area, a routing area and a control area. The illuminating area includes multiple light-emitting blocks and multiple illuminating area power-supply lines. Each the light-emitting block employs at least one light-emitting element as light source, and further is electrically coupled to a corresponding one of the illuminating area power-supply lines. The routing area includes multiple routing area power-supply lines, and each the routing area power-supply line is electrically coupled to a corresponding one of the illuminating area power-supply lines. The control area provides powers to the routing area power-supply lines. A width of at least one of the illuminating area power-supply lines and the corresponding routing area power-supply line or a length of at least one of the routing area power-supply lines is adjusted, such that differences among resistances between the light-emitting blocks and the control area are within 20%.

Abstract: A multipurpose lighting device comprising a flashlight end, a lantern end including a barrel through which light may pass, and a module mounted between the flashlight end and lantern end. The module includes a first light source configured to direct light out the flashlight end, and a second light source configured to direct light out the lantern end. The second light source is disposed on an opposite end of the module from the first light source. The module further includes a power source configured to energize the first light source and second light source, wherein the second light source is oppositely disposed on the module from the first light source.

Abstract: Method for managing power of a display and apparatus thereof are provided. The proposed method includes the following steps: calculating a most appropriating voltage value and a most appropriating current value form a plurality of LEDs; and obtaining a first optimal working point according to the most appropriating voltage value and the most appropriating current value, wherein the first optimal working point is used for arranging the plurality of LEDs.

Abstract: An overhead reading lamp for a passenger seat, in particular in an aircraft cabin, includes a first plurality of light sources, each of which emits light along a center line. The lamp also includes, a holding device which immovably secures the first plurality of light sources so as to be disposed in a first row in such a way that the center lines of the light sources of the first plurality of light sources lie in one plane and are inclined relative to one another. The lamp further includes an, and an activation device, which is connected to the first plurality of light sources and devised to selectively activate in each case one of the light sources of the first plurality of light sources.

Abstract: An electrical wiring device operates in more than one operating mode and includes a microcontroller, an occupancy detection sensor communicably coupled to the microcontroller, and at least one accessible user interface communicably coupled to the microcontroller. The accessible user interface is accessible to an end-user without having to disassemble any portion of the device. The accessible user interface is manipulated to select one of several operating modes. In some embodiments, the device includes a night light that also can be an accessible user interface. In some of those embodiments, one of the operating modes includes a night light operating mode, wherein the device's operation is dependent upon the status of the night light. In some embodiments, an indicator is included to inform the end-user when to stop manipulating the accessible user interface.

Abstract: A light emitting device that provides white light of various color temperatures by using a double-sided light emitting element, a light emitting system comprising the same, and a method of fabricating thereof are provided. The light emitting device includes a double-sided light emitting element including a first light emitting element on one side of a substrate and emits light having a first wavelength and a second light emitting element on the other side of the substrate and emits light having a second wavelength, wherein the first wavelength and the second wavelength are different each other, a first variable resistor coupled to the first light emitting element and adjusting a first driving power applied to the first light emitting element, and a second variable resistor coupled to the second light emitting element and adjusting a second driving power applied to the second light emitting element.

Abstract: A lighting device comprising a first group of solid state light emitters, an element containing luminescent material and a second group of solid state light emitters spaced from the element. In some embodiments, (1) at least 50% of light emitted by one of the first group does not mix with light emitted by the second group before the light emitted by the second group has entered the element, (2) at least 90% of exiting light emitted by the second group travels farther within the lighting device than 90% of exiting light emitted by the first group, (3) an average distance traveled by exiting light emitted by the second group is farther than an average distance traveled by exiting light emitted by the second group, and/or (4) light emitted by the first group directly exiting the lighting device exits the lighting device without being incident upon the element.

Abstract: An elongated luminaire for illuminating objects in front of the luminaire, comprising a plurality of side emitting LEDs (1) in only one straight array mounted on an elongated base plate (2). The base plate (2) carries two elongated reflectors (3) extending on either side of the array of LEDs (1) and parallel to the array of LEDs (1). Each reflector (3) has a reflecting surface (4) directed towards the array of LEDs (1).

Abstract: An optical system includes a light source array, a dichroic mirror set, a light converting device and a light guide pipe. The light source array is used for emitting a first homogeneous light. The dichroic mirror set is disposed in a light path of the first homogeneous light and used for reflecting a part of the first homogeneous light to the light guide pipe, transmitting the remaining part of the first homogeneous light to the converting device. The light converting device is disposed in the transmitting light path of the dichroic mirror and used for transferring the first homogeneous light into a second, third homogeneous light. The dichroic mirror is further used for reflecting the second, third homogeneous light to the light guide pipe. The light guide pipe is used for mixing the first, second and third homogeneous light to obtain a white light.

Abstract: The present disclosure involves an LED lamp. The LED lamp includes a plurality of light-emitting diode (LED) light sources located on a substrate. At least a subset of the LED light sources is free of a phosphor coating. The LED lamp includes a multi-layered cap structure located over at least the subset of the LED light sources. The cap structure contains a phosphor material and a diffuser material. The cap structure is physically separated from the subset of the LED light sources by a gap. The LED lamp includes a cover structure positioned over and surrounding the LED light sources and the cap structure.

Abstract: A lighting apparatus comprising a first lighting assembly comprising at least one lower light source configured to cast light over at least a near field and a second lighting assembly comprising at least one upper light source configured to cast light over at least a far field, the second lighting assembly mounted above the first lighting assembly.

Abstract: A lighting device includes a lower irradiation portion for irradiating light mainly in a vertically downward direction and an upper irradiation portion for irradiating light more horizontally than the lower irradiation portion. An irradiation angle of the upper irradiation portion is smaller than that of the lower irradiation portion. The upper irradiation portion is configured to reduce an S/P ratio denoting a ratio of scotopic vision luminance to photopic vision luminance.

Abstract: A solid state lighting system controls overall light output level in a step-wise manner by discretely controlling the ON/OFF state of its light emitters. Solid state emitters that are ON at a given time are set and kept at a level intended to produce a desired output characteristic, e.g. at a level to produce a described color of light. The system utilizes optical processing of the generated light, for example by diffuse reflection in an optical integrating cavity, sufficient to convert the point source output(s) from the emitting elements into a uniform virtual source output. The virtual source output appears uniform regardless of how many emitters are ON or OFF, and only the perceptible intensity of the light output changes with the number of emitters that the system has ON.

Abstract: An LED lamp is specified, comprising at least one LED and at least one radiation-emitting semiconductor component, it being the case that when the LED lamp is operating, the at least one LED emits visible light and the at least one radiation-emitting semiconductor component emits electromagnetic radiation having a peak intensity outside the visible region of the spectrum.

Abstract: Escutcheons for a temperature-controlled food holding cabinet are removable and field replaceable by the use of interlocking keys and keyholes that hold the escutcheon in place and align the escutcheon to electrical connectors. The escutcheons are provided with illuminated user interfaces. A key formed on either the escutcheon or chassis of the cabinet, engages a corresponding keyhole formed on either the cabinet chassis or the escutcheon.

Abstract: A light emitting device includes: a light source unit which has a first and a second LED which are connected in parallel and emit lights of different colors, respectively. The lights of the first and the second LED are mixed to provide an emission light of the light source unit when an operating voltage is applied. The light source unit further has a resistor which is connected in series to the first LED to make forward current changing characteristics of the first and the second LED depending on change in the operating voltage to be different from each other, so that a required luminous flux-color temperature property, in which change in a color temperature of the emission light is made to depend on change in a luminous flux of the emission light, is obtained while the first and the second LED are turned on by applying the operating voltage.

Abstract: A boresight collimating device using a novel way of achieving multiple source illumination of the pin hole/reticule using one moving part, a rotating elliptical mirror, while maintaining precision alignment of the device is disclosed.