Abstract: An illumination device includes a cover; a lamp including a light emitting unit; and a doppler sensor including a receiving unit, disposed on the same side as the lamp with respect to a first plane including a surface of the cover facing the lamp. In a cross section that intersects the receiving unit and is orthogonal to a central axis of the light emitting unit, “?” between a boundary line of a detectable range of the receiving unit close to the lamp and a normal to the first plane, “d” between the central axis and the first plane, “r” of the light emitting unit; “y” between the first plane and the receiving unit; and “x” between the receiving unit and a second plane that includes the central axis of the light emitting unit and is orthogonal to the first plane satisfy the following equation.

Abstract: The invention relates to a method of controlling a lighting system with multiple controllable light sources 3a, 3b and a system therefor. According to a first aspect, influence data of the lighting system are obtained, which data represent the effect of one or more of the light sources 3a, 3b on the illumination of one or more sections of an illuminated environment. In an optimization method, sets of control commands are continuously determined, a predicted light distribution for these control commands is determined from the influence data, and a colorimetric difference between the predicted light distribution and a target light distribution is determined. A plurality of adjustment steps are performed to minimize the colorimetric difference. According to a second aspect, a neural network is trained with the influence data and a set of control commands for controlling the lighting system is determined with the use of the neural network.

Abstract: A lighting system includes a light source and a switch configured to receive input power and provide switched power. A control module is configured to receive the switched power and control the light source. The control module is further configured to provide the switched power to the light source in response to toggling the switch more than once within a predetermined time period.

Abstract: A lighting system comprising a plurality of controllable light emitting elements 3 is disclosed. The lighting system further comprising a spreading optical element 5 arranged in front of the plurality of light emitting elements to shape the light emitted from the lighting elements, and a controller 7 for varying a light emission angle range of light emitted from the spreading optical element 5 by controlling each of the plurality of controllable light emitting elements. This allows the light emitted from the spreading optical element to be varied without varying any physical parts of the lighting system, because the controller now controls each of the light emitting elements, by e.g. dimming one or more of the light emitting elements or by switching one or more of the light emitting elements off.

Abstract: A system and method of light bulb and fixture comprising an occupancy sensor, a light meter, and an on/off circuit switch is used to manage the lighting use base on the sensing the presence of people and area lighting condition. The occupancy sensor, light meter, an on-off circuit switch, and a regulator are incorporated into the light bulb or fixture for easy replacement and no need of re-wiring or major fixture change.

Abstract: An illumination apparatus includes a light source unit having solid light-emitting elements and a sensor unit having a wave transmission portion for transmitting energy waves of specified frequency and a wave reception portion for receiving the energy waves reflected from an object. The sensor unit outputs a detection signal by detecting the object within a detection range based on the difference in frequency between the transmitted and received energy waves. The illumination apparatus further includes a control unit responsive to the detection signal from the sensor unit for performing a control operation to turn on the light source unit, and a power source unit for supplying electric power to the light source unit. The power source unit is arranged outside the detection range of the sensor unit. The sensor unit is provided on the opposite side to the direction of light irradiated from the light source unit.

Abstract: Illumination systems are described that can include one or more light sources, which can include LEDs, one or more lenses, and one or more optical fibers. A handheld, portable, and surgical intraocular illumination system is disclosed that is disposable, low-cost, and efficient. A surgeon can have direct control of turning the illuminator on and off and adjusting the intensity via a simple control ergonomically placed on the handpiece and/or voice activated control. A coupling is provided, such as through an endo-probe, which is coupled to the one or more light sources. A user input device can be included that is operable to transmit to a feedback controller a first signal based on a user-selected light intensity. The feedback controller can, in response to the first signal, transmit a second signal to the power source for altering the power provided by the power source to the illumination system.

Abstract: The invention relates to a system comprising a plurality of light emitting diodes, LEDs. The LEDs may be controlled in various in various manners in order to obtain any of one or more objects of the system. Thus, LEDs may be controlled for by controlling at least two of the following parameters: the luminous intensity of each of the LEDs, the luminous flux of each of the LEDs, the colour spectrum of the light being emitted from each of the LEDs, the spatial radiation pattern of the light being emitted from each of the LEDs, the spatial radiation pattern of the system, the junction temperature of each of the LEDs, the temperature of the surroundings to the LED, the amperage of the electrical power being supplied each or sections of the LEDs, the voltage of the electrical power being applied the LEDs and pulsing applied to the electrical power being applied each or sections of the LEDs.

Abstract: A remote control light receiver receives the infrared rays from an infrared LED incorporated in a remote control unit operated by the user, extracts the signal transmitted from the remote control unit, and outputs the extracted signal to a control microcomputer. The carrier frequency of the signal transmitted from the remote control unit is 38 kHz. A PWM control circuit performs PWM control by using an arbitrary PWM frequency within a range of 300 Hz to 3 kHz. By separating the PWM frequency and the frequency (carrier frequency) of the signal for remote control into different bands, the signal for remote control can be restrained from being affected by the turning on of the light source by PWM control, whereby remote control can be prevented from malfunctioning.

Abstract: The present invention relates to a natural lighting apparatus using sunlight, and more specifically, to a natural lighting apparatus using sunlight, wherein a second light condensing member is formed in the focal region of a first light condensing member so as to convert the sunlight condensed in the focal region through the first light condensing member into straight parallel light rays such as a laser beam through the second light condensing member, thereby being capable of supplying the sunlight of a high luminous flux indoors. In addition, the present invention relates to a hybrid illumination system which uses the natural lighting apparatus together with an artificial illumination and makes the utmost use of the natural lighting apparatus, thereby enabling the saving of energy.

Abstract: The present invention provides a method and apparatus for optical feedback control for an illumination device, wherein the control signal for each array of one or more light-emitting elements corresponding to a particular color, is independently configured using a modification signal whose frequency is different for each color. Electronic filters whose center frequencies are substantially equal to the modification signal frequencies of the drive currents for the light-emitting elements are used to discriminate between the radiant flux corresponding to each of the different colors of light-emitting elements, from a sample of the mixed radiant flux output collected by one or more optical sensors. The output of an individual electronic filter is substantially directly proportional to the radiant flux output of the light-emitting elements of the associated color, which together with the desired luminous flux and chromaticity of the output light, the controller can use to adjust the control signals.

Abstract: The present invention relates to a control system (12) for controlling the light output of a light emitting unit (10), which light emitting unit comprises at least one light emitting diode (LED) (14) and is adapted to emit light of at least one color, the control system comprising: a sensor unit (18) adapted to detect the light output of the light emitting unit and provide a corresponding feedback signal; and a control unit (22) adapted to control the light output of the light emitting unit based on a comparison between the feedback signal and a corresponding reference signal representing a desired light output, in order to provide an improved light output, wherein the control unit is further adapted to: determine a random switching period; determine on-time(s) for the LED(s) within the random switching period for providing the improved light output; and control energizing of the LED(s) according to the determined period and on-time(s).

Abstract: A control unit determines whether a vehicle has entered an area under a covering object that covers the upper side of the vehicle. In the case where the control unit determines that the vehicle has entered the area under the covering object, the control unit turns on light apparatus when both of a measurement of an upper light intensity, which is measured with an upper light intensity sensor, and a measurement of a front light intensity, which is measured with a front light intensity sensor, require turning on of the light apparatus.

Abstract: Systems and methods for controlling an output of a luminaire. The luminaire uses stored spectral information for light sources within the luminaire to determine a coordinate for each light source within a color space. A desired output color is also converted to a coordinate within the color space. The distance between the desired output color coordinate and each of the coordinates corresponding to the light sources is calculated to select initial control values for the light sources. The initial control values for each light source are individually modified by a step size value, the total output of the luminaire is calculated and converted to a coordinate within the color space, and the distance between the total luminaire output coordinate and the desired color coordinate is calculated. The control values for the light sources are iteratively modified until the luminaire output coordinate is within a threshold value of the desired color output.

Abstract: The present application discloses methods and systems for calibrating a scanning system. In one embodiment, the calibration method determines a dark level of at least one pixel, determines a maximum white level for at least one pixel and adjusts the current of an illumination source based upon an output of an analog to digital converter. In another embodiment, the scanning system has a circuit for dynamically adjusting the output of an illumination source. The circuit has a pulse width modulated signal generator for generating a pulse width modulated signal and a driver for receiving the pulse width modulated signal and causing current to the illumination source to be modulated based on the pulse width modulated signal.

Abstract: A power supply control device for lamp includes a control unit, the control unit receives a forward voltage signal and a reverse voltage signal simultaneously from a zero-crossover sampling circuit and determines if a connected load is an LED lamp, then the control unit turns on a tri-electrode AC switch (TRIAC) after an operating voltage for the LED voltage is reached, thereby outputting the AC power to an outlet for illuminating the LED lamp; since the TRIAC can be turned on with the forward voltage or the reverse voltage, the LED lamp is powered with a stable power supply to prevent the LED lamp from blinking.

Abstract: A color temperature correction device corrects, in a display device that represents brightness of RGB of a video signal by a plurality of levels of gray scales, a color temperature of the video signal. The color temperature correction device includes: a recording means of storing a gray scale value conversion table for an input gray scale value of a video signal to set gray scale values for respective RGB, so that a consistent color temperature is maintained; and a gray scale value converting unit that converts the input gray scale value to set gray scale values, based on the gray scale value conversion table.

Abstract: An embodiment of the disclosure includes a LED module. A substrate is provided. A light sensor is positioned in the substrate. A LED chip is attached to the substrate. The LED chip has a first side and a second side. The second side is covered by an opaque layer with an opening. The opening is substantially aligned with the light sensor. The light sensor receives a light output emitting from the LED chip through the opening.

Abstract: Methods and apparatuses of distributed lighting control are disclosed. One method includes a sensor sensing a change of light intensity per unit of time greater than a sense threshold. If a light associated with the sensor is within a corridor and the sensed change of light intensity per unit of time is greater than the sense threshold, then the light is activated at a preselected corridor light intensity. If the light associated with the sensor is not within a corridor and the sensed change of light per unit of time is greater than the sense threshold, then the light is activated at a preselected non-corridor light intensity. For an embodiment, the preselected corridor light intensity is greater than the preselected non-corridor light intensity.

Abstract: In one embodiment, the present disclosure provides a method for controlling a plurality of LED channels. The method includes receiving an LED brightness signal having a plurality of superimposed pulse width modulated (PWM) brightness signals each having a duty cycle and amplitude at a unique modulation frequency, each PWM brightness signal being proportional to the brightness of a respective LED channel. The method also includes determining a pulse area of each PWM brightness signal at each respective unique frequency. The pulse area is proportional to the product of the amplitude and the duty cycle. The method also includes generating pulse area signals proportional to the respective pulse area and comparing the respective pulse area signals to user defined and/or preset photometric values to generate respective error signals proportional to the difference between the respective pulse area signals and the user defined and/or preset photometric values.

Abstract: A wireless convenience lighting system, comprises a base unit, the base unit connectable to an AC power supply, the base unit having a transmitter structure emitting at least one signal indicating one of an AC power loss or the AC power on, a remote lighting unit having a light source, and auxiliary power supply and a receiver structure, the receiver structure receiving the signal from the base unit, the base unit wirelessly activating the light source of the remote lighting unit when the AC power is lost.

Abstract: An apparatus and method of retrofitting a light fixture are disclosed. One method includes interfacing a retrofit controller with a dimming ballast of the light fixture, connecting the retrofit controller to at least one sensor, and connecting the retrofit controller to a power supply and a network. Another embodiment includes a light fixture retrofit controller and a separate sensor unit. The combination of the retrofit controller and a separate sensor unit are operative to provide power and dimming control of a dimming ballast of an existing light fixture. The dimming control is base on at least one of a signal sensed by the separate sensor unit and control information received from a network.

Abstract: A multi-zone daylight harvesting method and apparatus having a closed loop system utilizing a single light sensor is disclosed herein. This light control system includes an ambient light sensor connected to a detection circuit for detecting the amount of ambient light within a given zone and converting the light signal to an digital one. A control device couples to receive a predetermined rate of change for each respective zone from a storage unit along with the converted digital signal. The control device connects each zone of a plurality of electrical loads to control the power supplied to the electrical load at the predetermined corresponding rate of change and responsive to the amount of ambient light detected.

Abstract: An illumination system (1) comprises a plurality of light sources (11, 12, 13), each provided with a driver (21, 22, 23); a controller (30) for generating control signals (Sc1, Sc2>Sc3) for controlling the respective drivers; temperature feed forward means (60, 61, 62, 63, 81) for establishing a temperature feed forward (TFF) correction mechanism; flux feedback means (71, 82, 83, 84) for establishing a flux feedback (FFB) correction mechanism. The controller is capable of operating in a first mode of operation wherein both the temperature feed forward correction mechanism and the flux feedback correction mechanism are active, and is capable of operating in a second mode of operation wherein the temperature feed forward correction mechanism is active and the flux feedback correction mechanism is inactive. The controller is designed to monitor the duty cycles of the control signals and to select its mode of operation based on said duty cycles.

Abstract: The present invention is directed to a drive apparatus for a backlight unit (20) in which plural LED (Light Emitting Diode) elements are cascade-connected every three primary colors, which comprises a signal generating unit (44) for generating a signal having an arbitrary amplitude, an adjustment unit (50) for adjusting light emission quantities of groups of LED elements (30) on the basis of the signal which has been generated by the signal generating unit (44), a voltage applying unit (41) for applying a predetermined voltage every the groups of LED elements (30), light emission quantity detecting units (33) for detecting quantities of rays of light which have been emitted from the groups of LED elements (30), calorific value detecting units (32) for detecting calorific values emitted from the groups of LED elements in accordance with the voltage which has been applied to the voltage applying unit (41), and a control unit (50) for controlling the signal generating unit (44) on the basis of light emission qua

Abstract: A light source system and method that generates stable optical power over time and temperature for use in laser scanning, turbidity sensing, airborne-particle analysis, fog and visibility monitoring, blood-gas analysis and applications where light source output intensity changes less than one-half percent over a 50° C. range. The system includes a miniature semiconductor light emitter that can be powered by two AAA alkaline batteries for more than 100 hours and is about 1 cm3 in size (TO-5 package). A semiconductor light emitter emits a beam of linearly polarized light through a coated optical element having first and second surfaces that meet at an acute angle, the first surface reflecting a portion of the light to a control system and transmitting the rest through the second surface in a direction normal to it and thereby enabling immunity to light interference in the reflected and transmitted beams and novel, error-canceling properties.

Abstract: A hybrid lighting device is described. The hybrid lighting device comprises a solar panel arranged to generate electric power; a wind turbine arranged to generate electric power; an energy storage device electrically connected with the power controller and arranged to store electric power; a power controller electrically connected with the energy storage device and the solar panel and the wind turbine and arranged to transfer electric power; and an induction-based light source electrically connected with the power controller.

Abstract: A proximity sensor, a control method thereof and an electronic apparatus equipped with the proximity sensor are disclosed. The proximity sensor connected to a light-emitting module includes a light source, a light receiver and a control module. The light source emits lights at predetermined time intervals. The light receiver receives reflected lights of the emitted lights that are reflected from an object. The control module determines whether an average value of intensity values of the reflected lights is larger than a threshold value. If yes, the control module further determines whether a difference between a highest and a lowest intensity value of the reflected lights falls in a preset range. If yes, the control module would control the light-emitting module to change to a different light mode thereof. When a user reacts to the different light mode, the system will be able to tell whether a real user is present.

Abstract: An automatic, low level floor lighting system includes a light unit including a light operable to produce visible light when energized by a power source and a control means for allowing a user to adjust an intensity of the visible light. The light unit also includes an ambient light sensor to inhibit the light from being energized when an ambient light is above a predetermined level. The light unit further includes a receiver for receiving an activation signal to energize the light and a deactivation signal to de-energize the light. A transmitter transmits the activation and deactivation signals to an additional light unit. The system also includes a remote activation unit for transmitting the activation and deactivation signals to the receiver when the user engages the remote activation unit where the user can remotely turn the light on and off when the ambient light is below the predetermined level.

Abstract: A lamp with power supply detection includes a power supply unit, a control module and a lighting module. The power supply unit provides a direct current (DC) voltage. The control module is coupled to the power supply unit, receives and stores the DC power, and generates a control signal according to whether the DC power is terminated or regained. The lighting module is coupled to the power supply unit and the control module, receives the DC power and adjusts brightness of the lighting module according to the control signal.

Abstract: A luminaire may include at least one LED; a solar module; an accumulator; an electronic charger coupled between the solar module and the accumulator; and a drive circuit coupled to the accumulator, for the at least one LED; a fastening device that is configured to fasten the luminaire at an operating location; and an LED holding device that is configured to hold the at least one LED; wherein the luminaire may further include a position varying device that is coupled between the fastening device and the LED holding device and is configured to vary the position of the at least one LED in relation to the fastening device.

Abstract: A lighting system distinguishes between light from natural and manmade sources to prevent the system's light source from being inadvertently deactivated due to light received from manmade light sources. A sensor converts received light into electrical energy. The system light source and/or some other external light source can emit light with a modulation. The system includes a modulation detector that can detect the modulation in the electrical energy received from the sensor. A system controller selectively adjusts the flow of electrical energy to the system light source responsive to the electrical signals from the sensor. The controller adjusts the flow of electrical energy in response to the non-modulated component of the electrical signals from the sensor. The controller does not adjust the flow of electrical energy in response to the modulated component of the electrical signals from the sensor.

Abstract: An appliance includes a cabinet, a solid state lighting device assembly integrated in the cabinet, and a power controller coupled to the solid state lighting device assembly for supplying electrical power to the solid state lighting device lighting assembly. The power controller is configured to provide a pulse modulated power signal to the solid state lighting device assembly that has a duty cycle. Each solid state lighting device in the solid state lighting device assembly cycles on and off in accordance with duty cycle.

Abstract: A lighting control system for controlling the lighting of a predetermined area is provided. According to one embodiment, the lighting control system comprises one or more light sources positioned in the predetermined area, the light source configured to include adjustable light intensity; a camera positioned and configured to capture an image of the predetermined area; and a controller in operable communication with the one or more light sources and the camera, the controller configured to control the one or more light sources and adjust the light intensity of the light source. The controller is configured to operate in a closed control loop to automatically adjust the lighting conditions of a predetermined area or environment. A false alarm checking process checks for temporary or localized events to prevent unnecessary lighting adjustments.

Abstract: A display device comprises an illumination source (12), a display modulator (10) for modulating the light provided by the illumination source and an integrated light sensor arrangement (14) to detect a light level. Light sensor signals from a plurality of light sensors are processed such that localized shielding of the ambient light at the location of one or more of the light sensors is identified. An accurate estimate of the ambient light level can then be obtained.

Abstract: There is provided a system of controlling product display lighting capable of controlling brightness levels and/or colors of illuminating light suitable for corresponding products according to characteristics of products, such as kinds or colors of products. The system of controlling product display lighting may include an information input unit acquiring information on products; a coordinator determining brightness levels and colors of illuminating light provided to the products according to the information on the products; a light source driver generating light source driving signals for outputting the determined brightness levels and colors of illuminating light in the coordinator; and a light source unit outputting illumination light having the brightness levels and colors of illuminating light determined in the coordinator by the light source driving signals.

Abstract: A display device, comprising: an insulating substrate; a light sensor which includes a semiconductor layer disposed in a first region and a sensor input terminal and a sensor output terminal electrically connected with the semiconductor layer, and is formed on the insulating substrate; a first electrode, an organic light emitting layer and a second electrode which are sequentially formed on the light sensor; a color filter which is disposed between the insulating substrate and the first electrode, and is formed in a second region that is different from the first region; and a controller which controls a data voltage supplied to one of the first electrode and the second electrode based on an output of the light sensor.

Abstract: One embodiment of an energy-efficient light fixture with automatic multilevel illumination comprising a housing that contains multiple ballasts and multiple lamps at least one of which is controlled by an occupancy sensor. At least one of the lamps remains on constantly to provide security in structures which would benefit from the safety that constant illumination provides. The other lamps will remain off until occupancy is detected from a sensor located within the luminaire housing and connected to one of the ballasts located therein.

Abstract: A light source system capable of controlling a light emission amount of a light source section more accurately while keeping manufacturing costs low is provided. The light source system includes a light source, a light-sensing device detecting light from the light source, a calculation means, and a light source control means. The calculation means calculates a net light amount by subtracting a measurement environment component from a light amount detected by the light-sensing device. The measurement environment component is independent of a lighting state in the light source. The light source control means controls the light source on the basis of the net light amount obtained by the calculation means.

Abstract: A lamp and methods of forming are shown. In one example, a dielectric layer is formed over a gap between conductors in a plasma lamp. Electric arcing is reduced or eliminated, thus allowing tighter gaps and/or higher voltages. In one example a glass frit method is used to apply the dielectric layer. A lamp is shown with a barrier layer that prevents tarnish such as tarnish from sulfur exposure. The barrier layer reduces or prevents degradation of the lamp due to conversion of a conductor material to non-conductive tarnish material.

Abstract: A vehicular vision system includes at least one imaging sensor for sensing images of objects in a forward field of view of the imaging sensor. The imaging system includes a control responsive to an output of the imaging sensor. The control modulates at least one headlamp of the vehicle in response to the output of the imaging sensor. The control may process an output of the imaging sensor to identify a headlamp or taillight of another vehicle in the forward field of view of the at least one imaging sensor and to determine a distance between the controlled vehicle and the identified headlamp or taillight of another vehicle. The control may modulate the at least one headlamp of the vehicle in response to the image processing.

Abstract: A device is disclosed for wireless control of color of light emitted by a lighting system. The lighting system comprises signal receiving means and means for adjusting the color of light emitted from at least one lighting element, in response to a received color control signal from the device. The device for wireless control comprises means for—generating color information data, said data being indicative of a desired color of light to be emitted by the lighting system, means for modulating a first carrier signal in accordance with the color information data, and means for transmitting said color control signal in the form of a beam of said first modulated carrier signal to the lighting system.

Abstract: A method and firmware for method of generating a digital dimming waveform for an inverter includes steps of receiving programmable parameters as input to firmware in an inverter voltage microcontroller including a soft start duration, a restrike voltage, a restrike duration, a recovery duration, a sustaining voltage, a dimming duty cycle, and an inverter frequency; and generating by firmware in the inverter voltage microcontroller a first portion of a pulse-width modulated digital switch control signal having a frequency equal to the inverter frequency and a duty cycle that varies from a first value to a second value during a time interval equal to the soft start duration.

Abstract: An electronic lamp converter allows a lamp socket of a different specification to be converted into a lamp socket which can be connected to an LED lamp. Through an electronic converter, electronic parameters are converted, wherein the electronic converter is electrically connected with at least a special function unit which enables the LED lamp to have an effect of changing a light source. Therefore, through the special function unit, the LED lamp is provided with functions of light dimming, light blending, color modulation, light induction, supplying uninterruptable power and motion detection.

Abstract: A lighting control console for controlling a lighting system, wherein digital adjusting commands are generated in the lighting control console, which can be transferred to the lighting devices of the lighting system via data connections, and wherein the lighting control console comprises at least one digital processor and at least one digital memory for generating, managing and storing the adjusting commands, and wherein the lighting control console comprises a remote control, and wherein operator inputs can be input at the remote control and can thereafter be transferred to the lighting control console via a data interface, and wherein at least one motion sensor, by means of which motions of the remote control can be detected, is installed in the remote control, wherein the sensor signals of the motion sensor can be evaluated in an evaluation module and can be transformed into operator inputs for the lighting control console.

Abstract: An intelligent wall switch comprises an extend operation panel including sensor areas with a first conducting film; a glass on the back sides of the sensor areas including second conducting films; a first circuit board including a backlight LED and an infrared emitter and connected to a flexible cable connected to the second conducting film; a frame on a back side of the glass; a controller system including a second circuit board having an AC-DC power module, relays, AC output connectors, an AC input connector all on a back side thereof, and having a flat cable connector, an infrared receiver, and multiple indicating LEDs all on a front side thereof; a connecting piece and a housing being used to receive the AC-DC power module, the connecting piece being disposed on a back side of the frame, the AC-DC power module being connected to the cable by the flat cable connector.

Abstract: A lighting commissioning device and method including a lighting commissioning device for commissioning of a lighting device in a lighting system, the lighting commissioning device including an indication detector 142 responsive to indication from the lighting device and generating a lighting device indication signal 148, a change detector 144 responsive to the lighting device indication signal 148 and generating an indication detected signal 150, and a control unit 146 receiving the indication detected signal 150 and being operably connected to the lighting system.

Abstract: A method of controlling a light level in a space of a building, the method comprising the steps of measuring the light level in the space; automatically adjusting the light level in the space towards a control setpoint; receiving an input to manually override the light level in the space to an override light level; adjusting the light level in the space to the override light level; temporarily adjusting the control setpoint from a default setpoint to a temporary setpoint in response to the manual override of the light level, the temporary setpoint representative of the override light level; subsequently adjusting the control setpoint from the temporary setpoint back to the default setpoint; and adjusting the default setpoint in response to repeated manual overrides of the light level that result in repeated adjustments of the control setpoint.

Abstract: A LED dimming circuit is provided. The LED dimming circuit has an LED driver, an LED dimmer, and at least one LED light source. A resistor is connected between a dimming control output of the LED dimmer and dimming control input of the LED dimmer. The LED dimming circuit may optionally include a fluorescent slide dimmer. The fluorescent slide dimmer may have a first connection to the dimming control input of the LED dimmer and a second connection to a circuit common of the LED dimmer. A method of providing an LED dimming circuit for dimming at least one LED light source using a fluorescent dimmer is also provided.

Abstract: A lamp brightness remote controlling device is provided for regulating a brightness level of a lamp correspondingly provided with a wireless receiver unit, and includes a first central processor, to which an ambient brightness detector, a setting key, and a wireless transmitter module are electrically connected. The first central processor compares a user-set brightness level set by a user via the setting key with an ambient brightness detected by the ambient brightness detector, computes, and then outputs a comparison signal to the wireless transmitter module for transmitting to the wireless receiver unit on the lamp, so that a luminance of the lamp is automatically regulated to always keep a working environment at the user-set brightness level.