Abstract: An adaptive lighting system of an off-road utility vehicle includes an illumination device controllable with respect to its emission characteristic or light intensity, and a control unit in communication with the illumination device. The control unit is configured to adapt the emission characteristic or light intensity level by controlling the illumination device based upon a determined gaze direction of a vehicle operator, an identified extraneous light effects, a determined relative position of an external off-road utility vehicle, or cartographic location information.

Abstract: A lighting system (10), in particular a shelf lighting system, is used for locating products (40, 41, 42). Said lighting system comprises at least two lamp units (24-31), each of which (24-31) or a defined group of which (24-31) is assigned to a different space, especially a shelf surface. The lighting system (10) further comprises a control unit for controlling the lamp units (24-31), to each of which (24-31) or to each defined group of which (24-31) a different lamp address is assigned. The lamp address is linked to a product association that is unambiguously associated with a product (40, 41, 42) located in the assigned space. The lighting system (10) also comprises a user interface (54) used for displaying the product associate and for selecting, by means of the displayed product association, the lamp unit (24-31) or defined group of lamp units (24-31) to be controlled. The invention further relates to a corresponding method for providing a lighting system (10) and locating a product.

Abstract: An apparatus can include: a linear drive circuit configured to control a drive current flowing through an LED load; a control circuit configured to acquire a conduction angle signal of a silicon-controlled rectifier dimmer and control the linear drive circuit; and the control circuit being configured to control the drive current to be decreased to reduce a current ripple and to maintain the silicon-controlled rectifier dimmer in a turn-on state when the conduction angle signal is less than a predetermined value.

Abstract: An active lighting device of a bicycle includes a first optical system with a first light source arrangement for long-distance illumination, which is controlled by a control unit, and a second optical system with a second light source arrangement for short-distance illumination, which is controlled by the control unit. A light sensor determines the light intensity of a location of the bicycle and allows the control unit to adapt the light intensity of the light sources, if they are activated and if the ambient light intensity is below a threshold. A speed sensor determines the speed of the bicycle, so that the control unit controls the activation of the light sources of the first light source arrangement from a speed threshold. An orientation or inclination detector selects and adjusts the light intensity of light sources.

Abstract: Apparatuses and systems are provided for changing the spectrum of light emission from a light-emitting diode (LED) light set. The LED light set may include LEDs, each of which having at least a first LED chip and a second LED chip configured to emit light at differing wavelengths. The first and second LED chips may be connected in series with opposite polarities. Responsive to receiving a power flow in a first direction from a power terminal, the first LED chip may emit light of a first color while the second LED chip may remain powered off. Responsive to receiving the power flow in a second direction opposite the first direction from the power source, the second LED chip may emit light of a second color different from the first color while the first LED chip may remain powered off.

Abstract: A pulse width modulation (PWM) signal generator according to one embodiment of the present invention includes a first comparison unit for comparing a duty value being inputted with a reference wave being inputted to output a first PWM signal, a signal inversion unit for inverting the duty value being inputted on the basis of a maximum value of the reference wave, a second comparison unit for comparing the duty value inverted by the signal inversion unit with the reference wave being inputted to output a second PWM signal, and a reference wave generator for generating a reference wave to transmit the same to each of the first comparison unit and the second comparison unit.

Abstract: A system adjusts detection parameters used to process a signal from a PIR sensor to reduce false triggers. A detection module receives a sensor output signal from a PIR sensor and inputs from environmental sensors, including a temperature sensor. The detection module adjusts detection parameters of a bandpass filter and/or a thresholod comparison module based on the inputs from the environmental sensors. The detection module generates a motion presence signal that indicates whether motion has been detected and that compensates for external environmental factors.

Abstract: An LED Lighting System for use with AC voltage power source configured such that a driver, and LED circuit is combined, the driver having an input of a first AC voltage and first frequency and an output of a second voltage and frequency delivered to the LED circuit. Embodiments include the LED circuit, driver and at least one capacitor mounted to a reflective substrate.

Abstract: Systems and methods are provided for adjusting the brightness level of a lighting system based on an ambient light measurement from a lighting based sensor. Systems and methods are provided for adjusting the brightness level of a lighting system based on an ambient light measurement from a lighting based sensor. In one example, an ambient light level in a space is measured with an embedded ambient light sensor in a luminaire. The ambient light level measurement is adjusted based on a correlation of the measurement with previously stored illumination data. A brightness level is selected based on the adjusted ambient light level measurement. The space is illuminated using the chosen brightness level.

Abstract: A power supply system includes a power supply circuit and an output unit. The power supply circuit generates a pulsating voltage. The output unit is to be connected to a pair of electric wires to apply the pulsating voltage to the pair of electric wires. The power supply circuit generates the pulsating voltage such that the pulsating voltage has a full-wave rectified waveform obtained by full-wave rectifying an alternating voltage as a wave alternating between a positive voltage and a negative voltage.

Abstract: An LED device for use with an AC voltage power source configured such that at least one LED emits light during a positive phase of power provided from an AC power supply and at least one LED emits light during the negative phase of power provided from an AC power supply. The LED device includes a first power connection lead and a second power connection lead, both leads capable of being connected to and receiving power from an AC power supply.

Abstract: The present invention belongs to the technical field of decorative lights, and discloses an LED light and an electronic candle. The LED light includes: an encapsulant body having a light condensing surface; at least two light-emitting dies packaged in the encapsulant body and spaced apart from each other, wherein, light emitted by the at least two light-emitting dies as a whole is emitted from the light condensing surface of the encapsulant body; and a dimming control circuit, outputting a varying dimming current to the at least two light-emitting dies according to dimming control signals, the dimming control signals corresponding to the at least two light-emitting dies are different, and the effect of simulated flame swing can be realized by a single LED light. The electronic candle includes the LED light, and the electronic candle has the characteristics of good simulation effect, reasonable structure setting and low production cost.

Abstract: A vehicle includes a mirror light assembly. A plurality of light sources is disposed in a housing and a plurality of reflectors surrounds each light source having a focal axis that is offset from each of the remaining reflectors. A sensor is configured to detect an object proximate the vehicle. A controller is configured to selectively illuminate the light sources to illuminate the object.

Abstract: An LED device for use with an AC voltage power source configured such that at least one LED emits light during a positive phase of power provided from an AC power supply and at least one LED emits light during the negative phase of power provided from an AC power supply. The LED device includes a first power connection lead and a second power connection lead, both leads capable of being connected to and receiving power from an AC power supply.

Abstract: Energy and a control signal may be provided using a coupled power and control cable. The coupled power and control cable may comprise a power cable, a control cable, and an overall jacket. The power cable may be connected between a switch and a fixture and may provide energy to the fixture from the switch. The control cable may be connected between the control circuit and the fixture and may provide the control signal to the fixture from the control circuit. The power cable and the control cable may be disposed beneath the overall jacket.

Abstract: An LED device for use with an AC voltage power source configured such that at least one LED emits light during a positive phase of power provided from an AC power supply and at least one LED emits light during the negative phase of power provided from an AC power supply. The LED device includes a first power connection lead and a second power connection lead, both leads capable of being connected to and receiving power from an AC power supply.

Abstract: An LED device for use with an AC voltage power source configured such that at least one LED emits light during a positive phase of power provided from an AC power supply and at least one LED emits light during the negative phase of power provided from an AC power supply. The LED device includes a first power connection lead and a second power connection lead, both leads capable of being connected to and receiving power from an AC power supply.

Abstract: Apparatus for controlling fan system operation including one or more fan devices that include a DC fan motor and circuitry for powering and controlling the DC fan motor so that it provides smooth operation without being off kilter in time or speed when multiple fan devices powered from the same AC power supply line are started concurrently. An exemplary system includes one or more fan devices including a DC fan motor, an AC power interface circuit that provides AC filter power to a DC power supply circuit that provides power to the DC fan motor. The AC power interface circuit including: AC signal and ground input connections, an AC filtering circuit, and AC signal output connections. The DC fan motor may be brushless without an optical sensor and the AC filtering circuit may include: a varistor, a common mode choke, an X capacitor, and two Y capacitors.

Abstract: A system for controlling a plurality of light sources particularly LED's that are provided in a number of different arrangements including a light string and controlled from a controller that includes an input microphone for detecting an audio signal, at least one pre-amplifier, a microcomputer unit receiving signals from the pre-amplifier, and a circuit for driving a plurality of LED and that enables lighting control of the plurality of LED's in accordance with the input audio signal and within a wide dynamic range.

Abstract: A system integrates a wireless controller into a linear, alternating current-only driver. The system utilizes a light emitting diode driver to maintain a constant current to a light emitting diode when a current controller is operated by a pulse width modulated signal. The pulse width modulated signal to one or more light emitting diode circuits may be modified to reduce flicker, color mix, and temperature tune.