Abstract: A security light system includes a plurality of light fixtures, whereby each light fixture has a light module including an infrared light and an LED that generates white light. Each light fixture includes a driver circuit for controlling operation of the infrared light and the LED. The system includes a light intensity controller for communicating with each light fixture. The light intensity controller includes a control element that enables an operator to selectively increase and decrease the intensity level of the infrared and white light generated by the infrared light and the LED.

Abstract: A vehicular safety device that couples between a vehicular brake light and the vehicle's brake pedal switch, having logic responsive to each activation of the brake pedal switch to initiate an illumination pattern of a plurality of periods of various output intensity and duration of the brake light. Sequential period durations and intensities may be unequal, respectively, to their predecessors. Period durations and intensities may be uncorrelated. Sequential illumination patterns may not be identical. Illumination patterns are preferably less than five seconds long.

Abstract: A vehicle driving system having a wireless power transmission function includes a driving controller configured to generate a high frequency AC voltage corresponding to a device by using a DC voltage applied from a battery within a vehicle and generate a magnetic field by applying the generated high frequency AC voltage to a primary coil. A smoother is configured to smooth an AC voltage induced by a secondary coil into a predetermined level of DC voltage and supply a constant voltage to the device, wherein the device is operated based on the constant voltage supplied from the smoother.

Abstract: A LED based lighting apparatus is disclosed. The light engine used in the lighting apparatus may use printed circuit board and have a plurality of LED groups that are independently controllable by a control unit. The power supply input and return paths connected to each LED group may be implemented on different layers to allow a compact footprint that may be used with traditional fluorescent encasements with relatively little modification. The LEDs may comprise a subset of LEDs having a first color and a subset of LEDs having a second color different from said first color intertwined on the light engine.

Abstract: A battery system may include a plurality of battery modules connected in series. A battery module of the plurality of battery modules may include a cell stack array, a first solid state switch and a second solid state switch arranged in a half bridge configuration and configured to operate in a complementary fashion, and a solid state driver connected to both gates of the first solid state switch and second solid state switch and configured to turn on and off the first solid state switch and the second solid state switch. Further, the cell stack array is configured to be active when the first solid state switch is on and the second solid state switch is off, and configured to be bypassed when the first solid state switch is off and the second solid state switch is on.

Abstract: An LED luminescence apparatus is provided, which includes a rectifying unit rectifying an AC voltage and generating a rectified voltage; a plurality of LEDs connected in series to an output terminal of the rectifying unit; a plurality of switches having drain terminals connected to cathodes of the plurality of LEDs, respectively; and a switch control unit sensing current through a plurality of resistors connected to source terminals of the plurality of switches, respectively, comparing the sensed current with a set reference current, and outputting a voltage corresponding to a difference between the sensed current and the set reference current to a gate terminal of each of the plurality of switches.

Abstract: The invention describes a control circuit for an LED external lighting unit of a vehicle, said lighting unit comprising at least an LED source and a passive heatsink. The control circuit comprises: a temperature sensor adapted to provide a first output signal carrying information about the operating temperature of the LED source and/or of the passive heatsink; a first output node operatively connectable to an optical and/or acoustic warning device and adapted to provide thereto a first control signal, depending upon the first output signal, adapted to produce an alarm warning through said warning device when said temperature is higher than a first threshold value; a driver unit being adapted to output an LED source driving signal, said driving signal being a relatively high-power signal or a relatively low-power signal.

Abstract: An induction power transfer system for auxiliary vehicle lights is provided. A transmitting power module coupled to an interior surface of a windshield includes a transmitting induction coil. The transmitting induction coil generates an oscillating magnetic field in response to receiving an electric current. A receiving power module is coupled to an exterior surface of the windshield of the vehicle. The receiving power module is substantially aligned with the transmitting power module coupled to the interior surface of the windshield. The receiving power module includes a receiving induction coil. The receiving induction coil generates an alternating electric current in response to a presence of the oscillating magnetic field. An auxiliary vehicle LED light coupled to an exterior surface of the vehicle is connected to the receiving power module by an insulated conductor. The receiving power module supplies the alternating electric current to the auxiliary vehicle LED light.

Abstract: The present invention relates to a lighting device in a motor vehicle. The lighting device includes a light source for emitting light and at least one plate-shaped light conductor, which is made in form of a block optics. The block optics includes two boundary surfaces which run opposite towards each other at a certain distance, a totally reflective side surface between the boundary surfaces, and a light coupling-out area arranged between the boundary surfaces. A coupling-in section is arranged on at least one of the boundary surfaces. The lighting device further includes at least one substantially rod-shaped light conductor with a light output area which extends along the longitudinal extension of the light conductor in addition to the at least one block optics.

Abstract: A lighting device includes a lighting unit which controls a current being supplied to a load, in which light emitting modules, each having one or more semiconductor light emitting elements connected in series, are connected in parallel, to be a constant current; a current detector which detects a current flowing through one of the light emitting modules; and an abnormality detector which compares a detected value from the current detector with an upper limit and a lower limit of a predetermined current range to detect an abnormality in the load. The abnormality detector detects the abnormality in the load if the detected value from the current detector is larger than the upper limit or smaller than the lower limit, and if the abnormality in the load is detected, the lighting unit reduces the current being supplied to the load.

Abstract: To provide a lighting system which can solve the inconvenience experienced by a pilot entering and leaving a control cabin of a transport such as an aircraft. A lighting system LS of an aircraft 1 includes: lights 21 that illuminate a control cabin 15; a lighting power supply system 22 including a main path 22M which supplies power to the lights 21 and a sub path 22S which supplies power to the lights 21; a first switch SW1 that enables and disables power supply through the main path 22M; and a second switch SW2 that enables and disables power supply through the sub path 22S.

Abstract: The disclosed systems and methods emphasize driving LEDs in series and in parallel with the same LED driver chip and a single inductor. For creating overlap, the systems and methods of LED color overlap disclosed herein take advantage of the fact that green and blue LEDs have the same voltage. Thus, green and blue LEDs can be driven in parallel as needed. LED suppliers can screen parts for sufficiently close voltage matching between green and blue LEDs. This is especially true when using green LED die based on a blue die with a green phosphor. Cyan may be produced by driving a green LED and a blue LED in parallel. White may produced by driving a green LED and a blue LED in parallel and a red LED in series with this green and blue parallel pair.

Abstract: The brightness generated by LEDs in an LED strip is adjusted by pulse-width modulation, wherein the LEDs connected in series are driven temporally offset to one another. If there is a shift in the on-time of at least one LED, a controller inserts at least one additional drive pulse to switch on the LEDs if the interval of the on-times of an LED in the time frame before the shift and in the drive frame after the shift is so large that the interval arising therefrom exceeds a first threshold. Alternatively, the controller reduces at least one drive pulse for switching on the LEDs to curtail the on-time of the LEDs if the interval of the on-times of an LED in the time frame before the shift and in the time frame after the shift is so small that the interval arising therefrom drops below a second threshold.

Abstract: A controller determines whether parallel-connected light sources include a faulty light source. When a faulty light source is included, the controller controls at least one of a current supply unit and a switching unit such that a current is continuously supplied to normal light sources being light sources of the light sources except for the faulty light source.

Abstract: A data transmission system includes at least one transmission line. A sender is configured to send data frames to the at least one transmission line and a recipient is configured to receive the data frames from the at least one transmission line. The sender and the recipient are both configured to determine a check sum based on a plurality of corresponding data frames that are sent to and, respectively, received from the at least one transmission line. A check sum comparing unit is configured to receive and to compare the check sum determined by the sender and the corresponding check sum determined by the recipient. The check sum comparing unit is also configured to signal a transmission error or initiate a safety function when the check sums compared are not equal.

Abstract: An input to increase or decrease a system setting in a vehicle interior is received, and the setting is adjusted. In one example, an in-vehicle ambient light color is controlled during the adjusting so an ambient light changes from a primary color setting to a first feedback color during setting increase and to a second feedback color during setting decrease; and the ambient light color is returned to the primary color setting at a time after completing the adjusting. In another example, the ambient light color is controlled during the adjusting so the ambient light transitions from a then-current color setting towards a first feedback color during setting increase and towards a second feedback color during setting decrease; and upon reaching an increased or decreased setting value, the ambient light remains at a new then-current color until another setting input is received or until the ambient light is turned off.

Abstract: A light concentrating optic for use with a photovoltaic device includes a light pipe having a first end portion for receiving light and a second end portion for outputting concentrated light. An optical element is coupled to the light pipe on the first end portion and configured to form an optical interface between the light pipe and the optical element. The optical element includes at least one light transmitting surface configured to redirect incident light entering the optical element to disperse the light to fall incident on side walls of the light pipe to increase homogeneity and intensity of light through the second end portion.

Abstract: Electronic circuits provide an error signal to control a regulated output voltage signal generated by a controllable DC-DC converter for driving one or more series connected strings of light emitting diodes.

Abstract: The present invention provides a lamp for a vehicle, including: a light source assembly in which a plurality of light sources, which produces a blue beam, is provided; and an upper substrate which is made of a transparent material that transmits light, is provided to cover upper portions of the light sources, and has one side surface on which a phosphor film is formed, and as a result, a dark zone on a beam pattern, which occurs due to a distance between the light sources in the lamp in which the plurality of light sources is mounted, may be eliminated.

Abstract: A lighting device includes a step-down chopper circuit and a controller configured to control the step-down chopper circuit. The controller is configured to turn on and off a low-side switching device in the step-down chopper circuit at a fixed frequency. The controller includes an operation unit configured to determine a reference voltage value, an output unit configured to output, as a difference signal, a difference between the reference voltage value determined by the operation unit and an average value of a voltage proportional to a current flowing through the switching device, and a control circuit configured to determine an on-time period of the switching device. The control circuit includes an oscillator configured to generate a voltage signal shaped like teeth of a saw. The control circuit is configured to determine the on-time period of the switching device based on the voltage signal and the difference signal.

Abstract: A status display for the state of an operationally-relevant component (1) of a motor vehicle, in which an illuminating structure (4) supplied by at least two light sources (5, 6) is arranged in a position of the vehicle which is visible from the outside and a control circuit (3) which is associated with the light sources is designed to control the light sources in accordance with a state signal (sz) representing the state of the operationally-relevant component (1), such that the luminance and/or the color indicates, along the illuminating structure and in a scaled manner, the state of the component.

Abstract: A driver device (P) for a plurality of light blocks (LED_DRL/PL, LED_TI) of a motor vehicle comprising at least two inputs (P1, P2), each of the inputs being suitable for receiving, respectively, a first and a second execution control signals (SCF_DRL, SCF_TI/PL), the driver device being suitable for selecting at least one of the light blocks as a function of at least one of the execution control signals and delivering an electrical power supply to said selected light block, the driver device comprises at least one controller receiving said execution control signals, the controller being suitable for delivering, as a function of the logic state of execution control signals, a switching control signal (SCC) for switching the electrical power supply to the selected light block or blocks and a control signal for controlling the level of power (SCA) of the electrical power supply of the selected light block or blocks.

Abstract: An electrical adapter configured to allow a towing vehicle's standard six wire electrical output connection to be used with a trailer's standard four wire electrical input connection, with the adapter combining electrical signals from the towing vehicle by use of a pair of logic circuits in a manner that results in the trailer's tail lights displaying all desired signals, including simultaneous braking and turning signals, and a converter configured to allow a towing vehicle's standard four wire electrical output connection to be used with a trailer's standard four wire electrical input connection, with the converter combining electrical signals from the towing vehicle by use of a pair of logic circuits in a manner that results in the trailer's tail lights displaying all desired signals, including simultaneous braking and turning signals.

Abstract: A lamp and lamp driver are disclosed, in which single intensity marker lamps that are desired to be flashed can be connected to a lamp driver employing an exclusive OR (XOR) logic circuit. In one application, this lamp driver is coupled to a vehicle turn function wire and marker function wire, and a plurality of marker lamps in a row can be of the same style, but one lamp can be flashed in the row of marker lamps. In some embodiments, if all of the marker lamps are on, the lamp being driven by the XOR driver circuit will flash out of sequence with the turn signal flash. If all of the marker lamps are off, the lamp being driven by the XOR driver circuit will flash in sequence with the turn signal flash. Other embodiments are disclosed.

Abstract: There are provided a light source apparatus and a vehicle headlight using the same. The light source apparatus includes a light emitting device array unit, a first detection unit, a driving unit, a second detection unit, and an interruption unit. A uniform quantity of light can be maintained and damage can be prevented.

Abstract: A system for controlling the exterior lighting of a motor vehicle has a switch unit having a rotary switch which can be rotated clockwise and counter-clockwise to sequentially activate a plurality of operating modes of the vehicle lights. The rotary switch is a continuously adjustable rotary encoder, and a plurality of indicator lights are arranged around the rotary encoder, each of the operating modes is respectively assigned a mode indicator light. The operating mode selected by the rotary encoder is displayed by the corresponding indicator light. The rotary encoder has a plurality of latched positions that correspond to the plurality of indicator lights.

Abstract: A light assembly and method for generating a light pattern, the assembly comprising a first light module including a first LED array, the first LED array including at least a first line of LEDs where each LED in the first array generates an LED light pattern and where dark areas occur between adjacent LED light patterns, the first LED array forming a first light pattern including interleaved bright and dark areas and a second light module wherein the first and second light modules are arranged with the first light pattern misaligned with a second light pattern generated by the second light module so that at least a subset of the bright areas in the first light pattern are aligned with dark areas in the second light pattern to generate a combined light pattern.

Abstract: A vehicle instrument configured so that turning on and off the light sources without depending on inputted vehicle information enables the instrument to be illuminated in a visually effective manner. The instrument is provided with: input circuits into which vehicle information is inputted as electric signals and which are provided with resistors connected to light sources relating to the vehicle information; electric-potential adjustment circuits for adjusting the electric potentials of lines of wiring between the input circuits and the light sources on the basis of control signals from a controller and eliminating influence on the light sources from the vehicle information; and light source control circuits which, when influence on the light sources is eliminated by the electric-potential adjustment circuits, operate and visualize turning on and off of the light sources on basis of the control signals from the controller.

Abstract: In a method of controlling an interior lighting (25) in a vehicle (18), having a plurality of separately drivable lamps (26a-26g), provision is made that a motion light pattern, in particular a wave light pattern, is generated as a function of vehicle operating data by separately driving the individual lamps (26a-26g), all of the lamps (26a-28g) being driven with an identical or similar light pattern, and the lamps (26a-26g) being driven with the light pattern offset in time. The time offset with which the lamps (26a-26g) are driven is dependent on the driving speed of the vehicle.

Abstract: A motor vehicle includes a processor having an interrupt input. A battery includes a positive terminal. A switch interconnects the positive terminal of the battery and the interrupt input of the processor. A first resistor interconnects the positive terminal of the battery and the interrupt input of the processor. A light emitting diode includes an input and an output. A second resistor interconnects the input of the light emitting diode and the interrupt input of the processor. A third resistor is connected in parallel with a series combination of the second resistor and the light emitting diode.

Abstract: A directional indicator includes a momentary type turn signal lever supported to undergo a swing operation and automatically returning to a neutral position after the swing operation, a turn switch operated by the swing operation of the turn signal lever in a first zone for generating a turn signal for informing a driving direction of a vehicle and for setting an auto turn cancel mode for automatically canceling the turn signal, a manual switch operated by the swing operation of the turn signal lever in a second zone for setting a manual mode for manually canceling the turn signal, and a turn signal control section for controlling cancellation of the turn signal based on an operating state of the turn switch and the manual switch.

Abstract: A light emitting diode (LED) signal lamp includes a lamp housing having at least one light opening, a power connection mounted on the lamp housing for connection to a power cable, a plurality of LEDs mounted within the lamp housing to shine through the at least one light opening when powered, and a control circuit for supplying electrical power to the plurality of LEDs via the power connection. The control circuit is configured to permit the LED signal lamp to safely, reliably and effectively interact with wayside control systems designed for incandescent signal lamps.

Abstract: An elevator interior illumination assembly comprising a primary LED driver that provides conditioned DC power to primary and backup LEDs when AC power is available from a primary electric power source. The backup LEDs receive DC power from a backup electric power source when AC power is not available to the primary LED driver from the primary electric power source.

Abstract: A dimmable LED reading light unit according to exemplary embodiments of the invention, in particular for a passenger transportation vehicle, such as an airplane, a ship, a bus, or a railcar, comprises an input connectable to a potentiometer being supplied with a constant supply voltage and outputting a direct voltage having a voltage intensity corresponding to a selected dimming rate; an electronic measuring and control unit connected to at least one LED and providing an operating current to the at least one LED, and method of operating same.

Abstract: A driver device (P) for a plurality of light blocks (LED_DRL/PL, LED_TI) of a motor vehicle comprising at least two inputs (P1, P2), each of the inputs being suitable for receiving, respectively, a first and a second execution control signals (SCF_DRL, SCF_TI/PL), the driver device being suitable for selecting at least one of the light blocks as a function of at least one of the execution control signals and delivering an electrical power supply to said selected light block, the driver device comprises at least one controller receiving said execution control signals, the controller being suitable for delivering, as a function of the logic state of execution control signals, a switching control signal (SCC) for switching the electrical power supply to the selected light block or blocks and a control signal for controlling the level of power (SCA) of the electrical power supply of the selected light block or blocks.

Abstract: A control device for controlling a plurality of sets of LEDs, especially for an automotive vehicle, the plurality of sets of LEDs comprising at least a first set that is associated with at least a first lighting and/or signaling function and a second set that is associated with at least a second and third function.

Abstract: A vehicle sun visor system and method for powering the vehicle sun visor are provided herein, and include a generator configured to produce a first current via kinetic motion. A converter is electrically coupled to the generator and configured to convert the first current into a second current. An energy storing device is electrically coupled to the converter and configured to store an electrical charge. An illumination source is electrically coupled to the energy storing device and configured to operate between an ON and an OFF state, wherein during the ON state, the electrical charge stored in the energy storing device is discharged to supply electrical power to the illumination source.

Abstract: A method of improving visibility for a person viewing an environment through a window includes detecting a light condition in the environment and, in responses to nature of the detected light condition, activating an illumination system adjacent an edge of the window to direct light into the window. The light is of the proper intensity and a wavelength to improve visibility of the environment as viewed through the window. The light condition may be detected by an environmental sensor and the illumination system activated based on signals generated by the environmental sensor.

Abstract: An emergency lighting system for an aircraft includes an emergency light control unit, having an external power input and at least one external control input for receiving external control commands from at least one of a cockpit crew, a cabin crew, a board computer and an autopilot, and a plurality of autonomous emergency light units, each of the plurality of autonomous emergency light units comprising at least one LED and a rechargeable capacitor. The emergency light control unit is configured to process the external control commands and to communicate emergency light control commands to the plurality of autonomous emergency light units as a response to the external control commands.

Abstract: The embodiments may include a connector device configured to be coupled to a cord-end connector of a connection cord of a first vehicle designed to be connected to a second vehicle capable of towing the first vehicle. The connector device is configured to provide access to a power source included within the first vehicle. In some examples, the connector device is configured to receive electrical power from the power source and re-route the electrical power back to the first vehicle for activating one or more components on the first vehicle. In some examples, the connector device may be configured to be coupled to at least one external device. The connector device may be configured to power or charge the at least one external device based on the provided access.

Abstract: A control system and method for an automated lighting feature of a vehicle is provided. In particular, a controller receives position data; determines whether the vehicle is within or is entering a particular tunnel from the position data; senses by a sensor, a sensed illumination level of a particular section in the tunnel; receives data related to a reference tunnel illumination level of the particular section in the tunnel; compares the sensed illumination level with the reference tunnel illumination level; and changes a reference light illumination level for turning on/off a light when the difference between the sensed illumination level and the reference tunnel illumination level is a particular value or more.

Abstract: To satisfy the need for refitting the lighting of a vehicle without the need to modify the controlling system of the vehicle, the present invention proposes a lighting system which comprises an electrical element (110), configured to consume the received power and incapable of emitting light; a light source (130); and a controller (120), configured to receive a first signal indicating the working status of the electrical element (110) and control the light source (130) generating a first light and a second light, respectively, based on the first signal. By utilizing the signal indicating the working status of the electrical element (110), which element is used to replace another automotive lamp, the controller can control the light source (130) to mimic said another automotive lamp while performing its original function.

Abstract: Various embodiments relate to a circuit arrangement, including a plurality of semiconductor lighting elements connected in series, a converter for driving the semiconductor lighting elements, and a control unit, with the aid of which the semiconductor lighting elements connected in series can at least partially be bridged by means of drivable electronic switches, wherein the converter can be switched between a first operating mode and a second operating mode with the aid of the control unit, and wherein the converter can be operated as a step-up converter in the first operating mode and the converter can be operated as a step-down converter in the second operating mode.

Abstract: A method for controlling an aircraft having a plurality of LEDs, light so as to emit a desired light intensity includes the steps of providing a reference LED located within or outside of the aircraft light, providing thermal conditions resulting in a thermal stress for the reference LED similar to the maximum thermal stress, and observing the reference LED by means of an optical sensor for monitoring the optical aging behavior of the reference LED throughout its lifetime. The desired light intensity of the aircraft light is achieved by controlling the plurality of LEDs in accordance with the monitored aging behavior of the reference LED.

Abstract: An airborne vehicle lighting control apparatus and method for automatically controlling activation and deactivation of an airborne vehicle lighting system. A processor for automatically controlling the lighting system can be employed and having one or more sensors operatively connected to the processor for sensing the current flight operating mode and geographical position of an airborne vehicle. The processor can activate or deactivate lighting based on the current flight operating mode and position.

Abstract: An actuation device (4) for a lighting device (3) of a motor vehicle (1), which includes at least one LED associated with a turn signal and at least one LED associated with another type of light, in particular a daytime running light and/or a position light, and a common optical system (10) for the types of light, wherein the actuation device (4) has a single DC/DC converter (11) used for both the LEDs of the turn signal and for the LEDs of the other type of light, as well as a control unit (12) for controlling the DC/DC converter (11) in response to a control signal.

Abstract: Provided is a power supply device, which is capable of coping with semiconductor light source loads to be set in various ways, and has high efficiency, in which a current to be supplied to each of the loads has a small ripple. The power supply device supplies power to a semiconductor light source load and lights the semiconductor light source load, and includes: a DC-DC converter; and a controller. The DC-DC converter includes an inductance element and a switching element, and performs voltage conversion by storing energy in the inductance element from an input power source when the switching element is on, and discharging the energy, the energy being stored in the inductance element, to a load side when the switching element is off. The controller controls ON/OFF operations of the switching element so that an output current of the DC-DC converter can be the same as a target value.

Abstract: The disclosure is directed at a configurable light emitting diode (LED) dimmer for controlling a set of light fixture loads comprising: a power circuit; a primary digital controller for controlling the power circuit; a set of output current drivers, each of the set of output current drivers connected to one of the set of light fixture loads for controlling the associated light fixture load; a secondary digital controller for controlling the set of output current drivers; wherein the secondary controller transmits LED control information to control outputs of the set of output current drivers; and wherein the secondary digital controller provides digital feedback control information to the primary digital controller.

Abstract: A circuit arrangement comprises a plurality of current channels located in different die areas of a shared circuit die, at least one of the plurality of current channels comprising a power device; at least one sense circuit connected to one or more of the different die areas and arranged to provide a sense current from sensing a current through a primary of the plurality of current channels comprising one of the different die areas. The at least one sense circuit comprises a compensation module arranged to provide a compensation current adapted to at least partly compensate a deviation of the sense current caused by crosstalk between the primary and one or more secondary of the plurality of current channels depending on one or more secondary currents flowing through the one or more secondary current channels; wherein the compensation module is arranged to provide the compensation current at least partly as a weighted sum of the one or more secondary currents.

Abstract: There is provided an apparatus for controlling a head lamp for a vehicle. A control condition determining unit determines whether a condition for controlling a head lamp is established or not based upon whether a vehicle ahead is present or not, and a distance between the vehicle ahead and the vehicle. When the control condition is determined to be established, an illumination range control unit compares a reference pattern stored and held in a reference pattern holding unit and an illumination pattern of the head lamp recognized by an illumination pattern recognition unit, and controls the illumination range of the head lamp via an actuator in order that both patterns agree with each other.