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JP2005135657A |
To provide a lighting system wherein a plurality of detachable lighting fixtures are connected to a luminaire body by magnets, and the output voltage of a lighting circuit does not drop even when the number of the lighting fixtures are c...
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JP2005515589A |
The present invention provides a high frequency electronic ballast with ignition and operation control, and method of use, comprising a ballast microcontroller ( 200 ) responsive to at least one high intensity discharge (HID) lamp feedba...
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JP2005514756A |
A driving circuit for providing a control signal to a power semiconductor device for providing power to a filament lamp, said driving circuit comprising an oscillator for generating said control signal. The driving circuit may further co...
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JP2005514688A |
The present invention provides a high frequency electronic ballast with ignition and operation control, and method of use, comprising a ballast microcontroller ( 200 ) responsive to at least one high intensity discharge (HID) lamp feedba...
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JP2005514890A |
The present invention provides a high frequency electronic ballast with ignition and operation control, and method of use, comprising a ballast microcontroller ( 200 ) responsive to at least one high intensity discharge (HID) lamp feedba...
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JP3649045B2 |
To reduce cost and size by eliminating a diode which was provided to cause regenerated current to flow. A first switching element SW1 is connected between the base and the emitter of a transistor Q1, and a second switching element SW2 is...
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JP3648639B2 |
PURPOSE: To reduce the electric power consumption of the whole of a circuit and to facilitate brighter emission by providing an emission means for emitting light through applied voltage, and a control means for intermittently applying th...
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JP2005099713A |
To provide an electro-optical device, a driving method therefore, and an electronic apparatus which can accurately control the brightness of electro-optical elements in accordance with the signal level of a data signal.A brightness detec...
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JP3636420B2 |
To drastically reduce higher harmonic components by slightly correcting a phase control circuit which controls the voltage supply to consumer equipment, by changing the firing angle to a prescribed reference firing angle value or its vic...
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JP2005085606A |
To provide an electric bulb capable of simulating lambently moving random brightness with a simple structure.This electric bulb comprises: a bulb with a filament installed in its inside; a case having one end disposed on the side of an e...
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JP2005506861A |
A curing lamp apparatus is used for providing electronic voice information to report a number of operating conditions associated with the curing lamp. The apparatus includes a light sensor for sensing output power, voltage and current se...
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JP2005505228A |
A self-oscillating bridge circuit comprises a start circuit for rendering one of the switches conductive for the first time at the start of operation. The start circuit is configured in such a way that it does not influence the switching...
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JP2004362850A |
To provide lighting equipment to which a human body detecting function can be easily attached with the use of a function of switching a lighting state by a wall switch.A control unit 7 is provided so as to have a human body sensing part ...
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JP2004355887A |
To provide a lamp drive controlling apparatus which can suppress the rush current at the start of lighting of a lamp and can be good in the lighting property of the lamp, when a power supply time and a power supply frequency to the lamp ...
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JP2004350469A |
To provide an inverter that protects from an overload and detects wire disconnection when lamps or the like are short-circuited, without providing windings for detecting a lamp state on a transformer that secures insulating property betw...
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JP3585016B2 |
To suppress the generation of high voltage by saturating the saturable transformer of a disconnected load before continuing a phase controller by the operation of the leakage inductance of an output transformer. A constant current contro...
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JP2004281171A |
To realize miniaturization of a lamp control system including a lamp drive circuit consisting of semiconductor elements, and improve reliability of the lamp drive circuit.This lamp control system is constituted by incorporating a constan...
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JP2004530377A |
An infrared hand-held remote control for handling a single or plural devices such as lights, shades, drapes and the like contains ergonomically selected and placed control buttons that are self-describing and easy to use. It allows expli...
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JP3564892B2 |
To continuously control the quantities of light from a combination meter and an interior illumination lamp day and night through the operation of a single member. At daytime running where an ignition switch SW1 is turned on, a driving vo...
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JP2004207237A |
To provide a lighting device including a detector means configured to detect a reduced lighting zone in an overlapping zone and a control means configured to increase light flux from a second lighting module when the detector means detec...
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JP2004193093A |
To enable a bulb or a fluorescent lamp, even if a failure occurs, to be used continuously without changing the bulb or fluorescent lamp.A spare of a filament that is the high failure rate part among part groups of a bulb or fluorescent l...
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JP2004179016A |
To provide a lamp lighting circuit working without exerting a bad influence on a power source and without wrong operation in a protecting circuit.A variable resistor mechanism having a resistance value to be changed with the lapse of tim...
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JP3536933B2 |
PURPOSE: To suppress heating and prevent sound noise by bearing most of the on-segment of each half cycle with a main switching circuit made of thyristors having low on-resistance, and bearing the steep rise portion with the switching el...
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JP2004165012A |
To provide a lamp driving device and a lamp driving method which can increase the life of a lamp by reducing an in-rush current generated during the initial period when the lamp is illuminated.A lamp driving device 10 comprises a control...
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JP2004140886A |
To provide a switching regulator circuit which supplies load with roughly constant supply power by simple circuit constitution.This switching regulator circuit is equipped with a switching element which controls voltage or a current to b...
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JP3511495B2 |
To stabilize a display by realizing addressing less influenced by variation in operational environment without increasing a withstand voltage of circuit parts. An address period TA for performing addressing is divided into plural sub-per...
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JP2004095369A |
To change color temperatures without limiting a lighting representation range.The device is provided with a plurality of circular fluorescent lamps 11A, 11B with different luminous colors, a plurality of lighting circuits 12A, 12B for li...
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JP2004087326A |
To optimize a service life and the output of light in any of loads of incandescent lamps with equivalent rated voltages and different rated power when they are lit.The device is constituted of a straightener 1 converting AC power Vs to D...
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JP2004055191A |
To provide a lighting control circuit of a vehicle lighting fixture capable of preventing a blown-out bulb filament caused by a rush current even when a power source of a large power is used, further, capable of using the bulb used prior...
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JP2004026010A |
To provide a lamp driving device for a vehicle having protecting function allowing for redundancy and fault tolerance.When a control part 20 receives from a lamp applied voltage detection part 16 a detection signal S10 for informing that...
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JP2004031095A |
To provide a lamp driver having a fail safe function.A lamp driving part 3 supplies electric power to a lamp L1 in accordance with a lamp driving control signal S20 outputted from a control part 20. A relay driving part 60 feeds a curren...
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JP3489231B2 |
PURPOSE: To eliminate a simple lighting condition and to obtain a comfortable lighting condition by giving a variation having a fluctuation (1/f) characteristics to a light source constantly. CONSTITUTION: A signal input by a wind speed ...
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JP2004501487A |
A programmable control circuit is disclosed for generating a periodic waveform. The circuit includes an amplifier.having both positive and negative feedback. The circuit is easily programmable by varying the component values and/or the i...
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JP2004500681A |
There is described a switching system for use with a power source and a light source (105), the system including a microchip (103, 201, 203) and an MMI activation/deactivation interface to select at least one function from multiple funct...
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JP3483933B2 |
PURPOSE: To provide a device which controls the load output and/or speed of an asynchronous, synchronous or AC/DC motor, or a transformer, an inductance, a capacitor or a resistance. CONSTITUTION: This device has a switch 5 which is plac...
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JP3472315B2 |
PURPOSE: To obtain excellent characteristics and longer life by enclosing xenon gas, krypton gas and/or argon gas and nitriding gas into an incandescent lamp, and specifying the proportion thereof. CONSTITUTION: A filament 2 with a tungs...
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JP3469080B2 |
To reduce an inrush voltage drop by allowing a switching means to successively execute a control mode for supplying power with a first polarity for one wavelength or more of an AC power supply, a control mode for supplying power with a s...
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JP2003332086A |
To make it possible to light an incandescent lamp without shortening the life.A lighting circuit device for the incandescent lamp in a vehicle includes input terminals (J1, J2) to which an onboard source voltage (UB) nearly equal to a DC...
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JP2003324001A |
To provide a resistor used for a lamp lighting device which causes no trouble even if it is heated up to a high temperature, and to realize the lamp lighting device which uses the above resistor, has a simple circuit structure, is small ...
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JP2003317989A |
To provide a discharge lamp lighting device capable of accurately detecting a conduction period of an alternating current voltage of which phase is controlled, and capable of achieving stabilized dimming operation.This device is provided...
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JP3457702B2 |
PURPOSE: To provide an image forming device which uses a metal halide lamp that does not generate conduction noise when power is input thereto and which can surely prevent any rush current that is transiently large. CONSTITUTION: A bipol...
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JP2003297589A |
To provide a lighting device of which, a control circuit for dimming is manufactured at low cost and dazzle is restrained.The lighting device comprises a polarity judging circuit 10, a rectifier 15, a capacitor 16, a reversing circuit pa...
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JP3452653B2 |
PURPOSE: To obtain a lighting lamp with double light sources, having a simple control device capable of assembling and connecting an electric circuit easily. CONSTITUTION: This lighting lamp comprises two bulbs 16, 18 connected in an ele...
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JP2003203785A |
To provide an arc fault detector not responding to step increases in a current by detecting the step increases in the current caused by a dimmer for a low temperature tungsten bulb generating high transient current when power is turned o...
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JP3425627B2 |
PURPOSE: To emit radiation light stably, determine an absolute strength by a calibrated light receiver, and calibrate another light receiver not yet calibrated based on it by measuring and controlling temperature of a filament. CONSTITUT...
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JP2003187991A |
To enable to control a load output without increasing the input current distortion in an inverter device lighting an incandescent lamp at a high frequency.A series circuit of capacitors C2, C3, and a series circuit of switching elements ...
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JP2003178893A |
To provide power supply equipment for vehicles which can restrict rush current and can obtain sufficient response speed, in case an electric bulb for low voltage is made turn on by a high-voltage power supply using the PWM driving.In the...
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JP3419793B2 |
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JP3413397B2 |
To enable dimmer control in which fall of a color temperature can not be found, by maintaining the color temperature after a 1st filament reaches the predetermined color temperature, in dimmer control illumination equipment for incandesc...
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JP3402653B2 |
PURPOSE: To quicken the rising even with a switch of minor rating by raising the output voltage of a switching element constituting a dimming device gradually in the active region, sensing the output current preset after a thyristor is i...
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