Abstract: An illumination device comprising a housing fixture, a light source, and an active heat transfer device is provided. The housing fixture includes a base adapted to be receivable in a light fixture receptacle configured to receive a gas-discharge lamp. The light source emits light with a color rendering index higher than a respective color rendering index of at least a type of gas-discharge lamp. The active heat transfer device is physically coupled to the light source and mounted to the housing fixture. The active heat transfer device receives power from a power supply to remove thermal energy from the light source.

Abstract: A flashlight with a circuit for reducing the initial surge of current that is sent through the lamp filament when a flashlight is turned on is provided. The circuit reduces the stresses placed on the lamp bulb when it is turned on, thereby extending the life expectancy of the lamp bulb. A flashlight with an electronic switch is also disclosed.

Abstract: A flashlight with unique flashlight electrical connections, including a switch structure featuring a switch requiring a small amount of force, and a short stroke distance to actuate, attached to a member on which a circuit adding additional functions to the flashlight may be located. The member has conductive springs attached to either end that are used to complete the electrical circuit with the battery and the lamp, while their compressive force is absorbed by a housing protecting the switch structure. A conductive strip is used to improve the conductivity of the circuit in a metal flashlight which has been provided with an electrically resistive protective coating.

Abstract: A light fixture is provided which is in the form of a simulated aircraft, preferably simulating as accurately as practical a particular known, existing, actual aircraft, such as a military jet, commercial jet, commercial propeller plane, military or civilian helicopter, glider, ultralight, hang glider, or drone. The simulated aircraft has at least one primary light source (e. g. a white LED) which performs a volume lighting function, and at least one secondary light source which performs an aesthetic, educational, and/or nightlight function (e. g. a red LED simulating a jet afterburner). The simulated aircraft may be mounted on a support shaft which extends to a base, which in turn mounts various electrical components, and may have associated indicia which simulates a cockpit control panel. The cockpit-simulating indicia may be backlit to provide an aesthetic function, for providing an educational function, and/or for providing a nightlight function, or a digital photo frame could be provided.

Abstract: A method and circuit to control the intensity of lights, illumination fixtures, and displays using pulses of a fixed duration and a fixed frequency (FD/FF) is provided. In particular, the method may be used to control one more light sources. By varying the number of pulses in a control burst, the total current flowing through the light source may be precisely controlled providing greater accuracy than other methods, such as, for example, PWM or variable pulse frequency. The FD/FF technique may be used in conjunction with any number of light sources, and finds particular application in LED displays and for any type of LED illumination fixture.

Abstract: A load control device comprises an actuator for controlling a connected lighting load and a plurality of status indicators for displaying the intensity of the lighting load as feedback to a user. One or more of the status indicators are illuminated to a bright active level when the actuator is actuated. After a predetermined amount of time, the intensity of the status indicators is faded one of two dim levels depending upon whether the lighting load is on or off. Accordingly, the load control device will “wake up”, i.e., the status indicators will illuminate to the bright active level, upon another actuation of the actuator.

Abstract: According to a first embodiment of the present invention, a lighting fixture is provided with a housing space to receive a retractable sensor module. The housing space is provided with an internal holder with electrical circuitry to operate the lighting fixture. The internal holder is essentially cylindrical in shape, with one closed end. The closed end is provided with openings and slots for screw and wires. The internal holder allows for pan rotation of a retractable sensor module. The retractable sensor module includes a control module comprising a top cover, a lower cover and a printed circuit board sub-assembly inside, and a lens assembly. The printed circuit board sub-assembly comprises a power printed circuit board, a sensor printed circuit board, with a printed circuit board and a transmitter printed circuit board. The lens assembly constitutes dotted lenses.

Abstract: A light source apparatus includes: a lamp replacement door configured to open and close a lamp replacement window; an igniter replacement door configured to open and close an igniter replacement window which is opened at a position different from the position of the lamp replacement window; a door opening detection switch configured to detect the opening and closing of the lamp replacement door; a circuit breaker device configured, when the opening state of the lamp replacement door is detected by the door opening detection switch, to interrupt power supply to an electric circuit; and a door opening regulation mechanism configured to lock the closing state of the igniter replacement door, and configured to permit the opening of the igniter replacement door.

Abstract: A display apparatus that can be worn by a user, attached to a surface, and/or comprise a stand-alone display containing a light source that emits light and is positioned so as to illuminate a design on the surface of the display apparatus, and/or that incorporates a lighted surface or video-capable technology and that may be connected to a microprocessor and/or light, sound or motion sensor functionalities connected to a microprocessor that can interpret external stimulus and modify the display according to various criteria to attract viewers. The display apparatus also is connected to or in the case of a wearable display contains a power supply that provides power to the light source or lighted display technology and microprocessor and/or sensor functionalities. In some embodiments, the invention may also include a promotional display member that displays advertising or sponsoring information.

Abstract: The adaptive RV chassis tail lamp and tow lamp configuration allows switching between American and European style tail and tow lamp configurations through use of a preprogrammed chassis control module, which is simply accessed via an user interface. Further, the configuration of the tail lamps of a vehicle being towed by the RV can be configured separately from the configuration of the RV chassis tail lamps, in like manner. Still further, diagnostics may be run to determine functionality of all tail and tow lamps powered by the vehicle power distribution source.

Abstract: A power control module which can be used to automatically open a power circuit for electrically operated devices, particularly battery operated devices, during predetermined periods of non-use. A timer is reset by a motion detector indicating continuing use. The timer controls a transistor switch which closes and opens the power circuit as required. The timing interval can be user-selected e.g., by programming a microprocessor controller. The transition time between conductive and non-conductive states of the transistor can also be controlled to prolong the life of incandescent bulbs or other sensitive load devices.

Abstract: A lighting system (300) includes a light source (320) and a switch (310) configured to receive input power (305) and provide switched power A control module (304) is configured to receive the switched power and control the light source (320). The control module (340) is further configured to provide the switched power to the light source (320) in response to toggling the switch (310) more than once within a predetermined time period.

Abstract: An electroluminescent circuit for driving an electroluminescent display having a plurality of segment electrodes and a common electrode. The circuit comprises a DC power supply, an output terminal for each of the segments and common electrodes and at least one supply half H-bridge for connecting at least one of each of the segment electrodes and the common electrode selectively to one of the DC supply and a reference voltage. Each supply half H-bridge comprises a top switch and a bottom switch in series having a junction between them. The top switch is connected to the DC supply and the bottom switch is connected to a reference voltage. A discharge circuit is provided for selectively discharging the electroluminescent display, the discharge circuit comprising a discharge half H-bridge in which a top switch is connected to the DC supply and to a discharge path.

Abstract: Disclosed is a starter for AC-fed low-pressure discharge lamps that are operated on a series inductor. The starter comprises a glow fuse, a high-temperature conductor (NTC resistor) that is serially connected to the glow fuse, and a resetting bimetal switch which is serially connected to the glow fuse and the high-temperature conductor and is in thermal contact therewith. The high-temperature conductor is provided with high resistance in a cold state, which is transformed into low resistance by elements of built-up heat while the bimetal switch interrupts the electrode heating circuit when the low-pressure discharge lamp fails to ignite. According to the invention, the current is conducted via the high-temperature conductor for both igniting the low-pressure discharge lamp and switching off when the discharge lamp fails to ignite.

Abstract: A fluorescent or light emitting diode-based system for generating light flux. The system comprises a lamp comprising at least one light source for illuminating an area. At least one of the at least one light source is selected from the group comprising at least one of a fluorescent light source or an LED light source. The lamp also comprises a light source controller electrically coupled with the light source and arranged to control the spectral output of the light source. The lamp also comprises a power supply and a switch electrically coupled between the lamp and the power supply and arranged to control the supply of power from the power supply to the lamp.

Abstract: An electric power tool, which comprises a motor that drives a tool, a power source unit that applies voltage to the motor, a main switching circuit that makes/breaks an electrical connection between the power source unit and the motor, an illuminator that illuminates a work spot, a switching device that electrically connects the illuminator to the power source unit, and an OR circuit that is electrically connected to terminals of the motor to the base terminal is provided. The OR circuit electrically connects one of the motor terminals at which a voltage is higher to the base terminal.

Abstract: A studio light having first and second light output regimes, and adjustable color temperature. The color temperatures of the first and second light output regimes may be different. The light module includes one or more emitters of light of at least two different colors. An external signal causes the light module to switch from a first light output regime to a second, higher intensity light output regime, and back to the first light output regime.

Abstract: A lamp driving device has a pulse width modulation circuit, a phase splitter and several switching circuits. The pulse width modulation circuit is arranged to generate a pulse width modulation signal. The phase splitter is coupled to the pulse width modulation circuit and arranged to split the pulse width modulation signal into several phased signals having different phases, wherein pulses of each phased signal are non-overlapping with those of another phased signal. The switching circuits are coupled to the phase splitter and are arranged to respectively receive one of the phased signals, wherein each switching circuit is controlled by the received phased signal.

Abstract: A lighting system controller comprising a switch connected to a lighting fixture configured to be controlled by time domain switching, and a processor capable of actuating said switch so as to achieve time domain switching of the lighting fixture.

Abstract: An electron source has an electron emitter, an anode, a voltage source connected between the electron emitter and the anode, as well as a switch connected with the electron emitter. The switch is fashioned as a optoelectronic switching element.

Abstract: Implementations of the present invention relate to an electronic control system for a mobile home, in particular a trailer, a motor home, or a boat. The electronic control system can include at least one electrical load, a control unit which actuates the load or loads, and at least one operator control unit with one or more first operating elements, with the operator control unit being connected to the control unit in such a way that said control unit can be controlled by means of the operator control unit. A predefined overall actuation state of the control unit can be in each case associated with the first operator control element or elements. Furthermore, the control unit can be configured in such a way that it actuates all the electrical loads of the electronic control system in a respectively predefined manner in each predefined overall actuation state.

Abstract: Disclosed is a lighting system supporting multiple independently controlled zones utilizing a plurality of semiconductor switches coupled to a plurality of transformers to produce a non-sinusoidal power output and controlled by a digital controller that receives feedback from each zone in order to auto-sense the proper voltage for a plurality of connected loads.

Abstract: Apparatus and systems including one or more first LEDs, each first LED configured to generate first radiation having a first spectrum, and one or more second LEDs, each second LED configured to generate second radiation having a second spectrum different than the first spectrum. A diffuser is employed to blend the first radiation and the second radiation, when generated, so as to provide a uniform color of light having a visible spectrum based on a combination of the first spectrum and the second spectrum. One or more controllers are configured to control the first LED(s) and the second LED(s) such that visible light provided by the diffuser is perceived as one or more colors. In different aspects, the apparatus/systems may be configured to generate white light and/or multicolor light, may be formed to resemble conventional light bulbs, and may be arranged as a linear chain of nodes.

Abstract: An LED for use with a medical diagnostic instrument having an adapter disposed between an instrument head and a hand-grippable handle, the LED being removably attachable in relation to the adapter in order to permit selective replacement of the LED, as needed. The LED is situated in order to provide mechanical and electrical interface with at least one of the adapter and the instrument, thereby enabling the adapter and the LED to convert the illumination source of the instrument selectively between an incandescent light source and the LED. The adapter matches a polarity between the LED and a power supply that is specifically intended for powering an incandescent light source.

Abstract: In one example, a lighting apparatus comprises a processor wherein the processor is configured to control a color-changing lighting effect generated by the lighting apparatus; wherein the processor is further configured to monitor an operating power source; and wherein the processor is further configured to synchronize the color-changing lighting effect in coordination with a parameter of the operating power source.

Abstract: A liquid crystal display backlight inverter including a first error amplifying unit receiving and comparing a first detection voltage corresponding to a current flowing through a lamp with a first preset reference voltage and outputting a first error voltage corresponding to an error therebetween; a second error amplifying unit receiving and comparing a second detection voltage corresponding to a voltage applied to the lamp with a second preset reference voltage and outputting a second error voltage corresponding to an error therebetween; a feedback selector selecting one of the outputs of the first and second error amplifying unit according to an error between the second detection voltage and a third preset reference voltage; and a lamp control pulse generator generating a pulse signal having a duty controlled according to one of the first error voltage and second error voltage.

Abstract: The aquarium or terrarium light systems simulates rising and setting of the sun. A housing contains two lamps, one variable lumen output for graduated light output and the other for full ON or OFF lighting. The light fixture contains a timer/dimming unit to variably increase power/voltage to the first lamp (variable output) and then to supply full ON power to the second lamp. The timer turns ON-OFF the second lamp late in the sunrise cycle and then early in the sunset cycle.

Abstract: Even if a DC output voltage of a step-down chopper circuit (3) is lowered from a value in a non-lighted state or a no-load state due to a discharge occurring between conductors (105a) in a cable (104), the turn on detection circuit (26a) can discriminates between lighted and non-lighted states without erroneously determining such a discharge as a discharge in a discharge lamp (4). This allows an operation of the timer (29) to be continued, so that high-voltage pulses are intermittently applied to prevent continuous discharge between the conductors (105) and abnormal heat generation in the cable (104). Further, even if a discharge occurs in an outer tube of the discharge lamp (4), the turn on detection circuit (26a) never erroneously discriminates this discharge as the lighted state. Thus, the lighting device of the present invention can suppress abnormal heat generations in the components and a socket (102).

Abstract: An electronic ballast system controls one or more ballasts of HID or fluorescent lamps, which are controlled in an “on/off” manner by a ultra low power controller that is isolated for a primary power circuit or derives its very low switch power from the ballast itself. The on/off control provides a near lossless control system. This system may be applied to electronic ballast for operates at fractional power levels corresponding to different lighting intensities and with conventional occupancy sensors. The system may also be applied to other electronically compatible end-use devices and applications.

Abstract: A method for responding to an open lamp condition in a discharge lamp system is disclosed. The method monitors a current feedback signal flowing through a lamp and a voltage feedback signal indicative of a voltage across said lamp. A switch is used to switch between the current feedback signal to the voltage feedback signal upon detection of an open lamp condition.

Abstract: A micro-controller and a converter circuit provide constant current to light emitting diode array from a power supply with greater voltage than the forward bias voltage of the light emitting diode. A micro-controller operatively coupled with a semiconductor switch and the converter circuit measures the ability of a DC power supply to charge the inductor. Duty cycles of the semiconductor switch are modified according to the measurement of the voltage across the internal resistor of the semiconductor switch so as to supply substantially constant current to the LED array through an inductor regardless of actual battery voltage.

Abstract: An embodiment of this invention relates to an intelligent lighting device that can receive signals and change the illumination conditions as a result of the received signals. The lighting device can change hue, saturation, and brightness as a response to received signals. One example of using such a lighting device is to display particular colors as a response to certain events. Among others, embodiments may include vehicle lighting systems, an information cube, a back lighting system for a display panel, and an indicator of a condition of a package.

Abstract: Disclosed is a starter for AC-fed low-pressure discharge lamps that are operated on a series inductor. The starter comprises a glow fuse, a high-temperature conductor (NTC resistor) that is serially connected to the glow fuse, and a resetting bimetal switch which is serially connected to the glow fuse and the high-temperature conductor and is in thermal contact therewith. The high-temperature conductor is provided with high resistance in the cold state, which is transformed into low resistance by elements of built-up heat while the bimetal switch interrupts the electrode heating circuit when the low-pressure discharge lamp fails to ignite. According to the invention, the current is conducted via the high-temperature conductor for both igniting the low-pressure discharge lamp and switching off when the discharge lamp fails to ignite.

Abstract: A control circuit of a DC/DC converter is provided for supplying a driving voltage to a light emitting element. A hysteresis comparator compares a detection voltage that corresponds to the output voltage of the DC/DC converter with two threshold voltages. If the detection voltage is smaller than the lower threshold voltage, the hysteresis comparator outputs a comparison signal at the low level. Otherwise, the comparison signal is set to the high level. The switching control unit uses the comparison signal as a reference. The switching control unit instructs the switching transistor of the DC/DC converter to perform the switching operation during a period when the comparison signal is at the low level. Otherwise, the switching operation is suspended. The control circuit inhibits light emission of the light emitting element during a period when the comparison signal is at the low level. Otherwise, the control circuit permits the light emission.

Abstract: It is an object of the invention to provide an improved illumination control circuit comprising a light emission element FL, a driving element 5 for driving the light emission element FL, and a compensation unit 8 are connected in series with respect to a power source voltage Vcc. Further, a reference unit 6 for generating a constant voltage Vz and a detecting unit 7 are connected in series with respect to the power source voltage Vcc. The detecting unit 7 is provided for detecting a differential voltage V1 between the power source voltage Vcc and the constant voltage Vz.

Abstract: The present invention, according to a preferred embodiment, is directed to portable electronic devices which operate on exhaustible power sources, for example, batteries. The electronic devices of the present invention comprise at least one signal switch and a microchip in communication with the switch wherein the switch is only capable of transmitting a signal to the microchip that the switch has been activated or deactivated. The microchip is in communication with the exhaustible power source of the electronic device and controls (i) the power on/off function of the device, (ii) at least one other function of the device in response to activation and deactivation signals from the switch, and (iii) an automatic shut off function in response to the receipt of an activation signal from the switch.

Abstract: An electronic ballast system controls one or more ballasts of HID or fluorescent lamps, which are controlled in an “on/off” manner by a ultra low power controller that is isolated for a primary power circuit or derives its very low switch power from the ballast itself. The on/off control provides a near lossless control system. This system may be applied to electronic ballast for operates at fractional power levels corresponding to different lighting intensities and with conventional occupancy sensors. The system may also be applied to other electronically compatible end-use devices and applications.

Abstract: The lamp comprises at least one light-emitting diode and an electronic power switch connected in series between a power source and the light-emitting diode. The electronic power switch is controlled by an electronic processing circuit according to the state of a control button connected to a control input of the electronic processing circuit. The button is connected in parallel to the electronic power switch. To detect and reconstitute the state of the button, the electronic processing circuit periodically applies fine turn-off pulses to a control electrode of the electronic power switch.

Abstract: The present invention relates to smart lighting devices bearing processors, and networks comprising smart lighting devices, capable of providing illumination, and detecting stimuli with sensors and/or sending signals. Sensors and emitters can, in some embodiments, be removed and added in a modular fashion. Smart lighting devices and smart lighting networks can be used for communication purposes, building automation, systems monitoring, and a variety of other functions.

Abstract: A light facility includes one or more batteries disposed in a housing, a processor device includes two power terminals coupled to the batteries and includes a switch terminal and a key terminal and three light terminals, a light device may be energized by the battery and includes a red light member, a green light member, and a blue light member coupled to the three light terminals of the processor device for being operated to generate red light, green light, and blue light, a switch is selectively coupled to either the switch terminal or the key terminal of the processor device for actuating the light device to generate lights, or gradually darkened light, or gradually brightened light.

Abstract: A method for efficient lighting includes supplying power to a light source to control the intensity of light emitted from the light source according to an intensity waveform. The amplitude of the waveform over one period is at a high level for a first time interval and at or below a low level for a second time interval. The method includes selecting durations of the first time interval according to a first characteristic of human visual perception and selecting the second time interval according to a second characteristic of human visual perception.

Abstract: A system and related methods for operating a lamp. The system and method provide for ON/OFF control such that the light source illuminates in predefined steps and is reduced in predefined steps. Turning ON the light source may include powering the light source in one step from zero light to a first light level that is less than a maximum light level and powering the light source gradually over a first predetermined time period from the first light level to a second light level greater than the first light level. Turning OFF the light source may include powering the light source in one step from a third light level at or below the maximum light level to a fourth light level that is less than the third light level and powering the light source over a second predetermined time period from the fourth light level to zero light.

Abstract: A step voltage controlling device and method for High Intensity Discharge (HID) light dimming applications includes an autotransformer, voltage sensing block, current sensing block, pulse forming block, microprocessor control unit (MCU) block and plural three switch blocks which allows an instantaneous variation of the voltage applied to the load which is controlled to be synchronized with the load current zero crossing point.

Abstract: An adapter for permitting a medical diagnostic instrument having an illumination source including at least one LED (light emitting diode) to be used with a power supply normally configured for use with a diagnostic instrument having at least one incandescent lamp as an illumination source. The adapter includes circuitry for compensating LED specific characteristics for permitting the power supply to be used with the LED.

Abstract: Illumination methods and apparatus, in which a first number of first light sources are adapted to generate first radiation having a first spectrum, and a second number of second light sources are adapted to generate second radiation having a second spectrum different than the first spectrum. In one example, the first number of the first light sources and the second number of the second light sources are different. In another example, a first intensity of the first radiation and a second intensity of the second radiation are independently controlled so as to controllably vary at least an overall perceivable color of generated visible radiation. In yet another example, a first control signal controls all of the first light sources substantially identically, and a second control signal controls all of the second light sources substantially identically.

Abstract: A method and apparatus are provided for operating a flashlight using a light emitting diode as a primary light source. The method includes the steps of activating the light emitting diode as the primary light source of the flashlight under one of a plurality of different operating modes and selecting the operating mode using a momentary contact disposed on an outer surface of the flashlight. In the disclosed embodiments, the flashlight takes the form of a relatively small size, generally flat housing having metallic side panels that may be of various colors and have indicia printed on them. The housing has an integral keyring extension enabling an article to be attached to the flashlight or for the flashlight to be attached to other articles, such as the clothing of a user.

Abstract: A color-changing device which includes an enclosure at least a portion of which is material which is desired to change color. There is also included an illumination device, such as an LED or collection of LEDs which can illuminate the material. There can also be included a controller which can take some form of input, such as from a network, or a sensor, and can convert that input into a signal to control the illumination. There is also included a method for performing such color change.

Abstract: The continuity of a series-wired, lamp circuit is restored after interruption caused by failure of a lamp filament by providing a control relay that is wired in parallel with each lamp. A power resistor having a resistive load substantially the same as that of a lamp filament is arranged in series with the relay contacts, which are normally open. The failure of a lamp filament causes a high voltage to be impressed across the coil of the relay, causing it to pick up and its contacts to close, thus substituting the resistor for the lamp filament and restoring continuity to the circuit.

Abstract: The magnetic flux of a magnetic body is controlled with voltage pulses from an active voltage source. The voltage pulses are applied to a winding circuit which is magnetically coupled to the magnetic body. An electronic switch means is used to generate the voltage pulses from a d-c power supply. A control circuit receives information about the winding current, and utilizes known loop impedances to optimize the voltage pulses for optimal magnetic control. Utilizing voltage pulses rather than a continuously variable voltage source has the advantage of lower cost and improved energy efficiency for many applications. The invention may be utilized for measurement of a-c current and d-c current utilizing ordinary current transformers. The switched-voltage control that is disclosed also may be used to facilitate accurate measurement of a-c current in a self-powered manner, with the power supply for the electronics deriving its power from the current transformer secondary circuit.

Abstract: It is an object of the present invention to provide a high pressure discharge lamp capable of shifting to arc discharge without going out at initial lighting. The object of the invention is achieved by a high discharge lamp in which mercury of 0.15 mg/mm3 is enclosed, and a power supply apparatus. The power supply apparatus comprises a chopper circuit including a switching element, and a smoothing circuit including at least one smoothing capacitor connected to an output terminal of the chopper circuit, and a feedback system control circuit which drives the switching element of the chopper circuit, wherein a parallel circuit comprising a resistor and a second switching circuit is in series connected to an output terminal of the smoothing circuit, and at least at time of initial lighting, the second switching circuit is turned off, and when the lamp is stabilized, the second switching element is turned on.