Abstract: A first light emitting diode has a first driving input, and emits a red color light. A second light emitting diode has a second driving input, and emits a green color light. A third light emitting diode has a third driving input, and emits a blue color light. When a first current is applied to the third driving input, the third light emitting diode produces a first amount of blue light energy. When a second current is applied to the third driving input, the third light emitting diode produces a second amount of the blue light energy. The second amount of blue light energy corresponds to a percentage of blue energy reduction as compared to the amount of first blue light energy.

Abstract: A fabric-based item may include fabric formed from intertwined strands of material such as intertwined strands of tubing. The strands of material may include electrophoretic ink formed from charged nanoparticles of different colors in fluid. The electrophoretic ink may be contained within strands of tubing or may be enclosed within encapsulation structures such as encapsulation spheres. Encapsulation spheres or other encapsulation structures may be embedded in clear polymer binder within tubing or other strands. Electroluminescent particles may be included in the clear polymer binder. Electric fields can be applied to the electrophoretic ink in a given area of the fabric using conductive strands that overlap the area, using conductive electrodes such as transparent conductive electrodes on strands of tubing, using coaxial electrodes, or using other electrode structures.

Abstract: A combination imaging system includes a housing having a base and a lid, the lid having a closed position against the base and having an open position. The imaging device further includes a contact area image sensor. The lid shields the contact area image sensor from ambient light when the lid is in the closed position. The imaging device also includes a camera. The camera includes a lens, and the field of view of the camera encompasses at least a portion of an imaging area of the contact area image sensor when the lid is in the open position. The device may be especially useful for capturing a chemiluminescent image of an electrophoretic assay result, and capturing a colorimetric image of the same result, so that non-chemiluminescent protein standards may be located with respect to chemiluminescent analytes of interest.

Abstract: A system and method transforming AC voltage to a high-frequency AC voltage and providing the high-frequency AC voltage to an AC LED circuit or rectifying the high-frequency circuit to a DC voltage and providing the DC voltage to a DC LED circuit.

Abstract: A communication system between electronic devices includes a first electronic device and a second electronic device. The first electronic device includes a LED array working within an infrared spectrum and a first LiFi transmission module driving and connected to the LED array. The first LiFi transmission module codes data to be transmitted to generate coded data and send the coded data via the LED array. A PD array of the second electronic device is opposing to the LED array and works within the infrared spectrum. A second LiFi transmission module driving the PD array is connected to the PD array and decodes the coded data received by the PD array to obtain the transmitted data.

Abstract: A light emitting device capable of photovoltaic power generation selectively connects a light emitting device to either a power unit or a charge unit according to a control signal. Thereby, when the light emitting device is in a display mode, the light emitting device is connected to the power unit and outputs light, and when the light emitting device is in a charge mode, the light emitting device is connected to the charge unit and provides power outputted from the light emitting device to the charge unit.

Abstract: A method of configuring an LED light with a tunable diffused light color temperature is disclosed. The method comprises using a light-emitting unit configured with a first LED load emitting light with a low color temperature and a second LED load emitting light with a high color temperature electrically connected in parallel, using a light diffuser to cover the first LED load and the second LED load to create a diffused light with a diffused light color temperature, using two semiconductor switching devices working in conjunction with a controller to respectively control a first electric power delivered to the first LED load and a second electric power delivered to the second LED load to operate a color temperature tuning and switching scheme and using a first external control device to output at least one first external control signal to activate a selection of a diffused light color temperature.

Abstract: Embodiments of the present disclosure provide a display screen component and an electronic device. The display screen component includes a display screen and an ambient-light sensor. The ambient-light sensor is oriented towards a periphery of the display screen, and is configured to sense an intensity of an ambient light incident on the ambient-light sensor from the periphery of the display screen.

Abstract: Disclosed herein shock wave catheters comprising one or more shock wave electrodes for cracking calcifications located within blood vessels. In some variations, a shock wave catheter has first and second shock wave electrodes each circumferentially disposed over the outer surface of the catheter. In certain variations, the first electrode has a recess and the second electrode has a protrusion that is received by the recess and a spark gap is located along the separation between the recess and the protrusion. The second electrode can also have a recess that receives a protrusion from a third shock wave electrode, where the separation between the second and third electrodes along the separation between the recess and the protrusion forms a second spark gap. A shock wave can be initiated across these spark gaps when a voltage is applied over the electrodes.

Abstract: A second communication unit of a wireless controller transmits a first signal to luminaires, the first signal instructing the luminaires to respond to a request from the wireless controller. A control unit (i) receives a response to the first signal sent from the luminaires, (ii) when there is a first group including a luminaire that has responded to the first signal, and a second group including at least one luminaire that has not responded to the first signal, assigns the luminaire in the first group as a relay luminaire, and (iii) transmit a second signal to the relay luminaire, the second signal instructing the relay luminaire to wirelessly communicate with the at least one luminaire in the second group via the second communication unit. The relay luminaire that has received the second signal wirelessly communicates with the at least one luminaire in the second group via a first communication unit.

Abstract: One example includes a display device. The display device includes an electronic paper display imageable by receiving charges on an imaging surface of the electronic paper display. The display device includes an embedded chip to enable writing to the electronic paper display based on a successful authentication.

Abstract: A lighting system includes: a wireless communication device that transmits a test signal; luminaires that measure a signal strength of the test signal upon receipt and transmit signal strength information on the signal strength to the wireless communication device; and a determining unit that determines a condition of the lighting system based on the signal strength or the signal strength information. The determining unit: determines the condition of the lighting system to be acceptable upon confirming transmission of the signal strength information by all luminaires and unacceptable upon failing to confirm transmission of the signal strength information by at least one luminaire; or determines the condition of the lighting system to be acceptable when each signal strength measured by all luminaires exceeds a reference value and unacceptable when the signal strength measured by at least one luminaire is less than or equal to the reference value.

Abstract: A vehicle imaging system may include a first circuit board, and the system may also include an additional circuit board. The circuit boards may hold components for capturing images of vehicles as well as components for analyzing images of vehicles that have been captured. The analyzing may include performing optical character recognition on portions on images to identify characters in the images. A housing may enclose the circuit boards. The vehicle imaging system may be a license plate recognition system, a DOT number reader system, a hazardous material placard reader system, or a container code reader system, for example.

Abstract: A display device includes: a plurality of pixel units, where each pixel unit includes two suppression color changing sub-pixel units configured for exciting light waves of different colors. Each suppression color changing sub-pixel unit includes: a first transparent electrostatic sheet and a second transparent electrostatic sheet which are disposed opposite to each other and insulated from each other, where the first transparent electrostatic sheet is disposed on a substrate and the second transparent electrostatic sheet is disposed on the first transparent electrostatic sheet. The display device further includes: a suppression color changing light emitting layer disposed between the first transparent electrostatic sheet and the second transparent electrostatic sheet; and a transparent pressure deformation sensor disposed at a side of the second transparent electrostatic that is away from the substrate.

Abstract: An organic light-emitting device including a compound represented by Formula 1 below: wherein description of Formula 1 above is specified in the detailed description.

Abstract: A novel compact air-cavity electrodeless high intensity discharge lamp is disclosed that provides added flexibility in its design to improve performance and reliability. A coupling sleeve surrounds a bulb assembly that can replace the output coupling element require for effective operation of the lamp. The coupling sleeve couples the RF energy from the input coupling element to the bulb and the bulb assembly serves to provide the heat sinking needed for the bulb to operate within the temperature range necessary to achieve optimum performance with good reliability. Changing the design of the bulb assembly does not impact the resonant frequency of the air-cavity resonator. De-coupling the bulb assembly design from the operating frequency of the resonator gives more flexibility to designer to optimize the overall performance of the electrodeless HID lamp.

Abstract: An electric system including a first wireless apparatus, a display apparatus and a second wireless apparatus is provided. A first information is encrypted to be a first encrypted information and sent wirelessly by the first wireless apparatus. The display apparatus includes a display unit and a wireless communication unit electrically connected to the display unit. The wireless communication unit receives the first encrypted information and cause the display unit to display a first representative information corresponding to the first encrypted information. The first representative information and the first encrypted information are different. The second wireless apparatus reads the first encrypted information by the wireless communication unit, and the first encrypted information is decrypted to be the first encrypted information by the second wireless apparatus.

Abstract: A method and system for transitioning operation between display screens of a computing device, with a user interface. The device further includes primary and secondary touch screen displays, an ambient lighting brightness sensor, a memory storing instructions and an e-book having content displayable according to a series of digitally constructed pages. The method comprises receiving, at a screen transition interface presented on one of the primary display screen and the secondary display screen, selections of an upper and a lower brightness threshold limits of ambient lighting, sensing a brightness level of ambient lighting, activating the secondary display screen for operation only if one of: (i) the ambient lighting brightness level exceeds the upper threshold limit and (ii) the ambient lighting brightness level is less than the lower threshold limit, and transitioning operation of the computing device to the secondary display screen by rendering the pages of e-book content thereon.

Abstract: The invention relates to a method for optimizing the data rate, in a wireless communication system comprising a LED forming an emitting device, and a photodetector forming a receiving device. For a given value of a DC component of the supply signal of the LED, the modulation amplitude of an AC component of this supply signal is adjusted step by step, so as to improve the transmission quality of the signal provided by the LED and received by the photodetector. The invention also relates to an optimization module implementing such a method. Alternatively, the modulation amplitude of the AC component of the supply signal is set, and the value of the DC component is adjusted step by step.

Abstract: An apparatus and method for an electronically activated grouping of charged particles for providing a changeable image on a surface is disclosed and claimed herein. The apparatus can include a capsule containing a plurality of first reflectance-type charged particles suspended in a dielectric fluid. Attached to the capsule can be a first rectenna having dipole elements attached to the capsule and conductively coupled to the capsule to effect switching of the plurality of first reflectance-type charged particles between a substantially visible state to a substantially non-visible state when a signal having the first rectenna's wavelength is received.

Abstract: An airfield lighting system can comprise a control system, a constant current regulator, and a plurality of light fixtures. The control system can command the constant current regulator to output a current level transition sequence. One or more light fixtures of the plurality of light fixtures can detect the current level transition sequence and execute a command at the light fixture, such as actuating a heating element or adjusting the intensity of light emitted by a light source.

Abstract: The present invention relates inter alia to light emitting fibers for the application in general lighting, display backlit, information display, and for treatment and/or prophylaxis and/or diagnosis of diseases and/or cosmetic conditions. The fibers can be used for the preparation of any kind of canvas and light emitting devices.

Abstract: The invention provides an illumination apparatus and a method of generating light by the illumination apparatus. The illumination apparatus comprises a light generation unit, configured to generate light having a color temperature in the range of [a first color temperature, a second color temperature]; and a controller, configured to control the light generation unit to generate light having a color temperature changing from a third color temperature to a fourth color temperature over time, wherein the third and the fourth color temperatures are in the range of [the first color temperature, the second color temperature]. The illumination apparatus of the invention could generate light having a changing color temperature over time, for example a color temperature changing from a less preferred color temperature to a preferred color temperature.

Abstract: The invention relates to a LED strip lighting device for a cabin of a passenger aircraft, the device comprising at least one LED strip, comprising a plurality of N independently controllable LED segments (S), wherein each LED segment (S) comprises at least four LED selected from red, green, blue, ice blue, warm white and cold white or another type of LED; a plurality of M driver units, wherein each LED section (S) is connected to a driver unit for providing a control signal to the respective LED section (S); and a bus system connecting all M driver units. The device further comprises a micro controller connected to the bus system for providing control signals for each driver unit, such that each LED segment (S) emits light in intensity and color according to a predetermined illumination pattern.

Abstract: A motion activated toilet bowl lighting device includes a body member having inner, outer, top, and bottom walls that define an interior area. The inner wall includes an inwardly annular configuration complementary to a toilet bowl rim outer surface. The lighting device includes an attachment arm displaced from the inner wall. A bridge connects the top wall to the attachment arm such that the inner wall, attachment arm, and bridge sandwich the toilet rim. A motion detector is positioned on the outer wall and a light is positioned on the attachment arm. A light sensor is positioned on the body member. A battery and timer are situated in the interior area. The light is energized when the light sensor detects lower than a predetermined amount of ambient light and when the motion detector detects movement, the light being de-energized when the timer expires.

Abstract: A retrofit light emitting diode (LED) module may include a carrier with at least one LED, a retrofit connection for mechanical and electrical contact-connection to conventional lamp holders, and an electronic system for driving the at least one LED. At least one part of the electronic system is integrated into the carrier, and the electronic system comprises a sensor system. A retrofit LED module system may include at least two retrofit LED modules and at least one control unit which regulates the retrofit LED modules in an adaptive and synchronized manner.

Abstract: A lighting device includes an LED light source (20) operable by electric power supplied to the device, and a control system (23) receiving electric power from an external power supply (26) and supplying power to the light source (20). The control system (23) also being operable of operating in a second mode to supply power to the light source (20) only on receipt by the control system (23) via the power supply (26) of a signal identifying said device. Thus the device (24) can be incorporated in a conventional lighting circuit or a circuit in which the devices (24) are individually controlled.

Abstract: The present invention is directed to an electrical wiring device that includes at least one circuit configured to provide an output signal in response to at least one external input signal. The device further comprises a light emission and detection assembly that includes: a lamp sub-assembly coupled to the at least one circuit, the lamp subassembly including at least one light emitting element configured to emit light in response to the output signal; and an ambient light sensor sub-assembly coupled to the at least one circuit and including an ambient light sensor and a sensor housing assembly, the ambient light sensor being configured to generate the at least one external input signal in response to sensing an ambient light level in the space, the sensor housing assembly being configured to substantially isolate the ambient light sensor from the light emitted by the lamp sub-assembly.

Abstract: Various techniques are provided for programming lighting devices. In one example, a lighting device includes a light emitting diode (LED). The lighting device also includes a microcontroller configured to receive a programming signal generated by the LED in response to illumination of the LED with an externally-supplied light signal modulated with the programming signal.

Abstract: A detection device designed to detect the intensity of a signal emitted by a source powered by pulse-width modulation at a first frequency. The device includes a reactivation circuit including circuitry for detecting a signal modulated at a second frequency, the second frequency being different from the first frequency and tripping circuitry or tripping a reactivation of the detection device when the signal is modulated at the second frequency.

Abstract: Sensor devices (1) are provided with trigger signal generators (2) for repeatedly generating trigger signals and light detectors (12) for detecting light parameters such as intensities and colors and color temperatures and patterns and fluctuations of light (43) at a location and transmitters (9) for, in response to trigger signals, transmitting control signals based on detections to control devices (20) for controlling light sources (40) to influence the light (43) at the location. The sensor devices (1) may further comprise theme code generators (3), location code generators (4), processors (5), scanners (10), and position detectors (6).

Abstract: In some embodiments, a signal of light may be emitted from an illumination source of a first transceiver. A second transceiver may detect a signal of light from the first transceiver that exceeds a threshold luminosity; and activate, in response to the detecting of the signal of light that exceeds the threshold luminosity, an illumination source of the second transceiver to illuminate. An intensity of the illumination source of the first transceiver may then be reduced in response to the activating of the illumination source of the second transceiver to illuminate.

Abstract: Three light emitting elements and one light receiving element are provided on a surface of a substrate. The light receiving element is disposed within a first triangular region connecting the three light emitting elements. A first rectangle circumscribed around the triangular region is formed. In addition, a second rectangle circumscribed around a second triangle formed when intersections of a virtually set XY plane and optical axes of light beams emitted from the three light emitting elements are perpendicularly projected on the surface of the substrate, is formed. Directions of the light emitted from the three light emitting elements are set such that at least either one of length and breadth dimensions of the second rectangle is larger than a corresponding one of length and breadth dimensions of the first rectangle.

Abstract: An electrical supply device may include a transformer with a secondary winding to feed a current to a load; control circuitry for the device; an auxiliary supply source for said control circuitry. The auxiliary supply source may include an output capacitor across which a supply voltage is provided for said control circuitry; at least one charge accumulation capacitor to be traversed by the current fed to said load; a comparator sensitive to the voltage on said at least one charge accumulation capacitor; and a switch interposed between said at least one charge accumulation capacitor and said output capacitor, said switch coupled to said comparator, whereby when the voltage on said at least one charge accumulation capacitor reaches a reference level, said switch couples said at least one charge accumulation capacitor to said output capacitor by transferring onto said output capacitor the charge on said at least one charge accumulation capacitor.

Abstract: A system for controlling a lighting system for a vehicle includes an ambient light sensor operable for detecting a level of ambient light and a lighting circuitry. The system also includes a logical control unit that receives input signals from a vehicle control unit, a user input device and the ambient light sensor. The logical control unit controls a voltage on the lighting circuitry to provide a minimum voltage based on the one or more input signals.

Abstract: The present invention relates to a multi-touch display system that supports both multi-touch human input as well as input from a digital pen. The display system has a display panel that is configured to allow human touches along a front surface to be detected and tracked. The display panel also includes a location pattern that preferably covers the viewable areas of the display panel. The location pattern is configured to allow any location within the location pattern to be detected by analyzing a portion of the display pattern that is associated with the particular location. The digital pen is used to “write” on the display panel, wherein such a writing function involves detecting the location where writing occurs and controlling display content that is displayed on the display panel to reflect what is being written.

Abstract: A cost effective illumination control system calculating motion and daylight or surrounding light inputs, particularly in large structures where the light distribution is not uniform across time. The system divides the structure into zones each having input capability with regard to occupation and background light levels. Each zone being able to make independent decisions with regard to control of lighting levels in the zone, yet the zones being able to cooperate in a coordinated fashion to provide uniform lighting to the structure as a whole.

Abstract: An illumination device includes: a light emitting element that includes an active layer, a first clad layer and a second clad layer with the active layer interposed therebetween, and a first gain region and a second gain region generating light when a current flows through the active layer; a control unit that operates the light emitting element so that light is alternately generated in the first gain region and the second gain region; and a first lens to which light emitted from a first light emitting portion of the first gain region and light emitted from a second light emitting portion of the second gain region are incident, wherein the light emitted from the first light emitting portion and the light emitted from the second light emitting portion are emitted in the same direction and are incident to the first lens.

Abstract: Methods and systems herein provide for determining lighting contributions of light fixtures to an environment. In one embodiment, a system includes a light sensor and a controller. The light sensor generates light level data based on measured light levels. The controller determines a nominal light level based on the light level data, and identifies an optical burst pattern in the light level data generated by a light fixture. The controller then determines a lighting contribution of the light fixture based on the optical burst pattern and the nominal light level.

Abstract: Methods and systems herein provide for determining lighting contributions of light fixtures to an environment. In one embodiment, a system includes a light sensor and a controller. The light sensor generates light level data based on measured light levels. The controller determines a nominal light level based on the light level data, and identifies an optical burst pattern in the light level data generated by a light fixture. The controller then determines a lighting contribution of the light fixture based on the optical burst pattern and the nominal light level.

Abstract: A usage time correcting engine, and corresponding method, system, apparatus, and computer product are provided. Over a period of time that an LED lighting fixture is being used to provide light, a usage time correcting engine indirectly measures an internal temperature of a component of the fixture. The indirect measurement is based on a measured external temperature of the component and power output supplied to or provided by the component. The usage time correcting engine determines a multiplier as a function of the indirectly measured internal temperature. The usage time correcting engine multiplies the period of time by the multiplier to provide a corrected measurement of usage of the component. In some examples, the usage time correcting engine determines a remaining lifetime of the LED lighting fixture from the corrected measurement and then reports the remaining lifetime to a user by way of a log, flashing light or other notification/indication.

Abstract: In some embodiments, a signal of light may be emitted from an illumination source of a first transceiver. A second transceiver may detect a signal of light from the first transceiver that exceeds a threshold luminosity; and activate, in response to the detecting of the signal of light that exceeds the threshold luminosity, an illumination source of the second transceiver to illuminate. An intensity of the illumination source of the first transceiver may then be reduced in response to the activating of the illumination source of the second transceiver to illuminate.

Abstract: A light-emitting electric-power generation module according to an embodiment includes a photoelectric conversion element for emitting light and generating electric power, a light-emission controller configured to control light emission of the photoelectric conversion element, an electric-power generation controller configured to control electric-power generation of the photoelectric conversion element, and a switching unit configured to switch light-emission state and electric-power generation state of the photoelectric conversion element.

Abstract: The present invention relates to a control device adapted to control properties of light emitted from a light source. The control device may comprise a touch-sensitive user interface adapted to visually indicate a range of available values representing at least one of the properties and to enable a user to control the represented property on the basis of a location touched on the touch-sensitive user interface. The controlled property may be adjusted by means of a communication unit adapted to communicate to the light source control signals corresponding to user input. The control device may be adapted to enable the user to control a property associated with an activation area with the user interface upon activation of the activation area by the user.

Abstract: A solid state lighting device comprising at least one first light emitter that emits non-saturated non-white light of a first color point, at least one second light emitter that emits saturated non-white light, and a controller configured to control a ratio of light emitted by the first emitter(s) and by the second light emitter(s) to provide non-white light of a second color point. Also, a solid state lighting device comprising at least one first light emitter that emits light within a first area or a second area on a Chromaticity Diagram, and at least one second light emitter, wherein output light is non-white and has a second color point. Also, methods of providing non-white light.

Abstract: The present disclosure relates to an LED-based lighting component that can control the color rendering capability of its generated light based on the presence or characteristics of ambient light. In one embodiment, the lighting component may employ at least two different types of LEDs to generate light. Control circuitry of the lighting component is able to monitor ambient light and drive the LEDs based on an ambient light characteristic that is indicative of the CRI of the ambient light. If the ambient light characteristic is indicative of the ambient light having a lower CRI, the control system will drive the LEDs to emit light with a defined CRI. If the ambient light characteristic is indicative of the ambient light having a higher CRI, the control system will drive the LEDs to emit light with a reduced CRI, which is lower than the defined CRI.

Abstract: A wireless light sensor, being part of a lighting system, has a sensor element generating a light measuring signal, a microcontroller coupled to the sensor element, and a radio communication device coupled to the microcontroller. The microcontroller has an active mode and a sleeping mode. The light sensor further has a wake-up circuit which determines a rate of change of the light measuring signal, when the microcontroller is in the sleeping mode. The wake-up circuit brings the microcontroller from the sleeping mode into the active mode, when the rate of change of the light measuring signal exceeds a predetermined threshold.

Abstract: Provided is an automatic lighting control device for automatically switching on and off a lamp installed within a building in accordance with only the variation of brightness at the installation location. The automatic lighting control device is constituted as follows. A photoelectric transducer 1 has a daylight detection field that overlaps at least partially a lamp illumination field. A first comparator 2 generates a turn-on signal when the output level of the photoelectric transducer 1 becomes lower than the predetermined light-up level. A memory 5 stores the output level of the photoelectric transducer 1 after light-up. A second comparator 8 compares the output level of the photoelectric transducer 1 with the output level stored in the memory 5 after light-up and it generates a turn-off signal when the output level of the photoelectric transducer 1 becomes higher than the stored post-light-up brightness level.

Abstract: A lighting assembly having a socket adaptor and a microprocessor for receiving user input and selectively actuating at least one LED based on that user input. The microprocessor is electrically connected to the socket adaptor. A processor-readable medium is in electrical communication with the microprocessor. An LED assembly comprising at least one plurality of LEDs is electrically connected to the microprocessor. A lens encloses the LED assembly and the microprocessor. An input device is electrically connected to the microprocessor to receive user input.

Abstract: LED calibration systems and related methods are disclosed that use the photo-sensitivity of LEDs to correct for variations between LEDs during initial production and over the lifetime of systems using LEDs. The disclosed systems and methods include methods to set the color or color temperature produced by a group of LEDs during the manufacturing of a device such as a lamp, an LED display, or an LCD backlight, and maintaining such color or color temperature over the operating life of such a device. The methods involve measuring the intensity and/or wavelength of light produced by each LED within a group of LEDs and adjusting an amount of light generated by the LEDs to produce precise color and intensity from the group of LEDs. Two methods that operate some of the LEDs in photovoltaic or photoconductive mode to measure the light intensity produced by other LEDs in the group are presented.