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METHOD AND APPARATUS FOR MULTI-ZONED ILLUMINATION

Application Number: 20120039613
Publication Date: 2012-02-16
Inventor: Routledge, Gordon

The present invention is directed to a multi-zoned lighting apparatus. In one embodiment, the multi-zoned lighting apparatus includes at least one circuit board, at least one control circuit coupled to the at least one circuit board and a plurality of light emitting diode (LED) groups coupled to the at least one control circuit, wherein each LED group of the plurality of LED groups is in communication with a respective external sensor that controls a respective one of the plurality of LED ...

ORGANIC LIGHT EMITTING DEVICE, ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE

Application Number: 20120038847
Publication Date: 2012-02-16
Inventors: Chang, Ting-Kuo; Chen, Chieh-Wei; Lin, Chen-Chi; Lin, Chun-Liang

An organic light emitting device having light emitting units on a substrate is provided. Each light emitting unit includes a first electrode layer, an organic light emitting layer, a second electrode layer, a power line, a resistor line, an insulating layer. The first electrode layer is disposed on the substrate. The organic light emitting layer is disposed on the first electrode layer. The second electrode layer is disposed on the organic light emitting layer. The power line is disposed on the ...

Pixel and Organic Light Emitting Display Device Using the Same

Application Number: 20120038605
Publication Date: 2012-02-16
Inventor: Han, Sam-Il

A pixel, for displaying an image of desired brightness, includes an organic light emitting diode (OLED); a first transistor for controlling an amount of current supplied from a first power source to the organic light emitting diode; a capacitor having a first terminal coupled to a first node as a gate electrode of the first transistor; a plurality of second transistors coupled between a second node as a second terminal of the capacitor and a data line and turned on when a scan signal is ...

LED Lighting Device

Application Number: 20120038293
Publication Date: 2012-02-16
Inventors: Guerrieri, Salvatore; Hamel, Steven

An LED lighting device is described that comprises of a housing. The housing is capable of engaging with a leg of a table via a hole in the center of the housing. The housing also contains a first LED light source, a power source to power said first LED light. The LED lighting device can also have a second or multiple LED lighting sources housed within the ...

CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES

Application Number: 20120038292
Publication Date: 2012-02-16
Inventors: KUO, Ching-Chuan; LIN, Yung Lin

A driving circuit for driving a light source includes a converter and a dimming controller. The converter coupled to a power source is operable for receiving power from the power source and for providing regulated power to the light source according to control signals. The dimming controller coupled to the converter is operable for monitoring a power switch coupled between the power source and the converter, for receiving a color change signal indicating a first set of operations of the power ...

COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE

Application Number: 20120038291
Publication Date: 2012-02-16
Inventor: Hasnain, Ghulam

A color temperature tunable LED light source. An apparatus is provided that includes a substrate, a first group of LED chips mounted on the substrate and configured to produce first color temperature light having a first intensity value determined from a first drive current, and a second group of LED chips mounted on the substrate and configured to produce second color temperature light having a second intensity value determined from a second drive current, wherein the first color temperature ...

METHOD AND APPARATUS FOR COMMON USE OF POWER SUPPLY AND DISPLAY APPARATUS USING THE SAME

Application Number: 20120038290
Publication Date: 2012-02-16
Inventors: CHOI, Hyo-soon; KANG, Jeong-il

An apparatus and a method for common use of a power supply and a display apparatus using the same are provided. The display apparatus includes a display panel, a backlight unit which provides backlight to the display panel, and a power supply unit for common use which comprises an adjusting circuit unit comprising a plurality of resistances, and provides a current of a magnitude corresponding to a combination state of the plurality of resistances to the backlight unit. Accordingly, the power ...

LED LAMP AND DRIVING CIRCUIT FOR THE SAME

Application Number: 20120038289
Publication Date: 2012-02-16
Inventors: Kim, Hyun Kyung; Jee, Yong Keun; Song, Byung Kwan; Na, Yun Whan; Kim, Jin Jong; Im, Sun Woo; Kim, Seok Kyu

An LED lamp driving circuit includes: a thermistor having one terminal through which an external voltage is applied; an AC-DC conversion unit connected to the other terminal of the thermistor and converting an AC voltage applied to the other terminal of the thermistor into a DC voltage; and a DC-DC conversion unit converting the DC voltage from the AC-DC conversion unit into a DC voltage required to drive the LED ...

METHOD AND SYSTEM FOR EXTENDING PWM DIMMING RANGE IN LED DRIVERS

Application Number: 20120038288
Publication Date: 2012-02-16
Inventors: BAI, Hua; Zhou, Dongyan

An apparatus for driving a light emitting diode (LED). A rising edge of a pulse width modulation (PWM) signal is first sensed. Upon sensing the rising edge, a threshold pulse (TP) signal is initiated that has a configured width started when the rising edge is sensed, an LED current with an amplitude at a previously set level is generated, and starting to charge a capacitor which yields a voltage Vcap. Subsequently, a falling edge of either the PWM signal or the TP signal is detected. Upon ...

LIGHTING SYSTEM, DIMMING CONTROL APPARATUS AND DIMMING CONTROL METHOD

Application Number: 20120038287
Publication Date: 2012-02-16
Inventors: LI, Hung-Chun; Yu, Wun-Long

A lighting system, a dimming control apparatus, and a dimming control method are provided. The dimming control apparatus includes a control unit and a dimming driving unit. In response to a dimming command and a number, the control unit decodes the dimming command into a plurality of sub-dimming commands. The dimming driving unit has a plurality of output terminals for coupling to a plurality of lamp modules. According to the sub-dimming commands, the control unit controls the dimming driving ...

DRIVE CIRCUIT FOR A COLOR TEMPERATURE TUNABLE LED LIGHT SOURCE

Application Number: 20120038286
Publication Date: 2012-02-16
Inventor: Hasnain, Ghulam

A drive circuit for a color temperature tunable LED light source. An apparatus includes a current driver configured to output a first drive current to drive a first group of LED chips of the light source to emit first color temperature light and to output a second drive current to drive a second group of LED chips of the light source to emit second color temperature light. The apparatus also includes a controller coupled to the current driver and configured to control the first and second drive ...

LED SWITCH CIRCUITRY FOR VARYING INPUT VOLTAGE SOURCE

Application Number: 20120038285
Publication Date: 2012-02-16
Inventors: Leung, Wa Hing; Siu, Johnny

An LED array switching apparatus, comprises: a plurality of LED segments D1 to Dn connected in series, each LED segment having a forward voltage; a voltage supply coupled to the plurality of LED segments; and a plurality of constant current sources G1 to Gn, coupled to outputs of LED segments D1 to Dn, respectively. Each of the constant current sources is switchable between a current regulating state and an open state such that as the voltage of the voltage supply ...

LIGHTING DEVICE AND LIGHTING SYSTEM

Application Number: 20120038284
Publication Date: 2012-02-16
Inventors: Nagai, Hideo; Uemoto, Takaari; Setomoto, Tatsumi

Provided is a lighting device which can be dimmed and subjected to change in color temperature of the lighting color in accordance with a dimming level. To the lighting device, AC power under phase-controlled is supplied. The lighting device is provided with a light emitting elements array and a switching unit. The light emitting elements array includes a plurality of light emitting elements, which are two or more types of light emitting elements having different lighting colors. The switching ...

LIGHT EMITTING DIODE DRIVING SYSTEM AND CIRCUIT THEREOF

Application Number: 20120038283
Publication Date: 2012-02-16
Inventors: HSU, HSIANG LIN; SHEN, EN LIANG; SHEN, CHIH CHE

The present invention relates to a light emitting diode (LED) driving system and a circuit thereof. The LED driving circuit is configured to control a direct voltage converter configured to generate a regulated output voltage to an input terminal of an LED array. The LED array has a plurality of LED sets. The LED driving circuit includes a plurality of current sources, a comparison circuit and a current setup circuit. The plurality of current sources are connected to a plurality of output ...

SOLAR POWER SUPPLY DEVICE

Application Number: 20120038282
Publication Date: 2012-02-16
Inventors: ZHAO, XIN; HE, ZU-PEI; PAN, LU; WANG, HAN-CHE; HSIEH, KUAN-HONG

A solar power supply device includes a solar panel and a rechargeable battery. The solar panel is configured to collect and convert optical energy to electrical energy. The solar power supply device further includes an e-paper display unit, a charging connection connecting to a rechargeable device. A detecting unit detecting the charging state information of the rechargeable device via the charging connection, a light-operated unit detecting ambient illumination intensity, and a processing unit ...

OUTDOOR LIGHTING FIXTURES CONTROL SYSTEMS AND METHODS

Application Number: 20120038281
Publication Date: 2012-02-16
Inventor: Verfuerth, Neal R.

One embodiment of the invention relates to a system for operating a plurality of streetlights in response to motion from a vehicle. The system includes a sensor associated with at least one of the streetlights and configured to detect the presence of a moving vehicle and to provide a signal representative of the moving vehicle. The system further includes a radio frequency transceiver associated with each of the streetlights. The system yet further includes processing electronics configured to ...

HIGH COLOUR QUALITY LUMINAIRE

Application Number: 20120038280
Publication Date: 2012-02-16
Inventors: Zoorob, Majd; Lee, Thomas David Matthew

A colour tunable lighting module is described which includes at least three solid state lighting emitters (such as light emitting diodes) and at least two wavelength converting elements (such as phosphors). The three solid state lighting emitters are formed of the same semiconductor material system and the light generated by them has dominant wavelengths in the blue-green-orange range of the optical spectrum. The two wavelengths converters are used re-emit some of the light from two of the ...

LIGHT ADJUSTABLE TABLE LAMP AND THE LIGHT AUTO ADJUST METHOD THEREOF

Application Number: 20120038279
Publication Date: 2012-02-16
Inventors: Chang, Shun-Yung; Zhuang, Jiaqing

The light adjustable table lamp includes a base, a stand pole, lighting equipment, optical sensor, a keyboard, a single-chip and a drive. The lower end of the stand pole is disposed in the rear of the base, and the upper end of the stand pole is equipped with a pendulum. The lighting equipment is disposed in the front of the pendulum. The optical sensors A and B are disposed on the top surface in front of the base. The three input ports of the single-chip joints to the keyboard, the optical ...

ELECTRONIC INVERTER WITH PROTECTION FOR DISCHARGES PRODUCED BY MALFUNCTIONING IN GAS DISCHARGE OR FLUORESCENT LAMPS AT THE END OF THE SERVICE LIFE THEREOF

Application Number: 20120038278
Publication Date: 2012-02-16
Inventor: Arena Ochoa, Guido

A full-wave electronic inverter for supplying one or more low-pressure gas discharge or fluorescent lamps, which inverter is protected by a circuit containing a small tubular core saturable transformer which has the inductive reactance necessary and sufficient for deflecting, from the circuit thereof, the asymmetrical waves which are at a frequency higher than the frequencies stipulated by design and are produced by said lamps at the end of the service life thereof, preventing the inverter from ...

POWER SUPPLY CONTROL DEVICE, PLASMA PROCESSING DEVICE, AND PLASMA PROCESSING METHOD

Application Number: 20120038277
Publication Date: 2012-02-16
Inventors: ETO, Hideo; Nishiyama, Nobuyasu; Suzuki, Keiji; Saito, Makoto

According to one embodiment, a power supply control device of a plasma processing device having a plasma generation unit which generates plasma in a process chamber. The power supply control device includes a radio frequency power supply, a storage unit, and a matching circuit. The radio frequency power supply supplies a power to the plasma generation unit. The storage unit stores matching information including a first matching value, a second process condition, and a third matching value. The ...

DISCHARGE LAMP BALLAST, LIGHTING UNIT, AND VEHICLE

Application Number: 20120038276
Publication Date: 2012-02-16
Inventor: Nakamura, Toshiaki

A discharge lamp ballast includes a DC-DC converter circuit configured to convert a voltage of a DC power supply by a switching operation of a switching element based on a PWM signal and to output a DC power, an inverter circuit configured to invert the DC power into an AC power, and a PWM ON-width control circuit configured to control switching conditions of the switching element in the DC-DC converter circuit immediately before a polarity of the AC power is reversed such that an ON-width of ...

METHOD FOR CHANGING THE STATUS OF LIGHT SEGMENTS IN A LIGHTING SYSTEM, LIGHT SEGMENT FOR THE LIGHTING SYSTEM, AND LIGHTING SYSTEM

Application Number: 20120038275
Publication Date: 2012-02-16
Inventors: PÖHLER, Ulrich; PODSZUS, Rainer; KÖNINGER, Günther; MOHR, Ulrich

The invention is based on the object of improving the installation and maintenance of lighting systems and of presenting a light segment and a lighting system which are adapted thereto in terms of design. This object is achieved by a method for changing the status of light segments 3 in a lighting system 1, the light segments 3 being connected to one another via a serial data connection 6, the status change comprising the following steps:

Multi-Mode Photo-Controlled Light With Timer Circuit

Application Number: 20120038274
Publication Date: 2012-02-16
Inventors: Chin-Chien, Wang; Wen-Chang, Kao

A photo-controlled light includes an electrical power input port configured to receive electrical power, a light emitting unit that is connected to the electrical power input port and a photosensitive timer module that connects the light emitting unit to the electrical power input port. The photosensitive timer module includes a photosensitive switch unit including a photosensitive element that is configured to detect a light level that satisfies a luminosity threshold value. The photosensitive ...

Fluorescent illumination device

Application Number: 20120038273
Publication Date: 2012-02-16
Inventor: Elvin, Frederick

An illumination device having an elongate bulb and an outer casing substantially coextensive with the bulb and surrounding the same. The elongated bulb is a CCFL which generally has a glass bead containing an iron electrode embedded in the center and attached to both ends thus sealing the elongate bulb. The end of the CCFL bulb will have the iron electrode bent over and in contact with an outside surface of the bulb and then have a coil spring connector arranged over the end of the bulb. The ...

Led and thermal management module for a vehicle headlamp

Application Number: 20120038272
Publication Date: 2012-02-16
Inventor: De Castro, Erwin L.

The LED headlamps for vehicles provide a modular efficient light source for vehicle headlamps. The invention addresses the LED negative temperature coefficient in efficient heat removal system. Beam direction and pattern is controlled by its composite lens beam shaping mechanism. The beam targeting using the LED source is done through beam shaping via lens surface shaping, lens curvature contouring and composite lens component offsetting from the LED source or outgoing beam axis to direct the ...

LED BULB AND METHOD FOR MANUFACTURING THE SAME

Application Number: 20120038271
Publication Date: 2012-02-16
Inventors: LU, YING-CHIEH; CHIANG, KUO-FENG; LU, CHIEN-TING; CHEN, YING-CHING; HUANG, ZHENG-JAY; LO, KUO-MANG

An LED bulb includes a heat sink, a circuit, an LED, and a driving module. The heat sink includes a base, a tube extending downwardly from a first face of the base, and a plurality of fins extending outwardly from an outer circumference of the tube. The circuit is formed on a second face of the base, and the LED is disposed on the second face of the base and electrically connected with the circuit. The LED bulb further includes a first lead and a second lead electrically connecting with the ...

SYSTEMS, METHODS AND APPARATUS FOR CHOKED FLOW ELEMENT EXTRACTION

Application Number: 20120035766
Publication Date: 2012-02-09
Inventors: Nagarkatti, Siddharth P.; Cowe, Andrew; Shajii, Ali; Gottscho, Richard; Benzerrouk, Souheil; Entley, William R.

A plasma source includes a ring plasma chamber, a primary winding around an exterior of the ring plasma chamber, multiple ferrites, wherein the ring plasma chamber passes through each of the ferrites and multiple plasma chamber outlets coupling the plasma chamber to a process chamber. Each one of the plasma chamber outlets having a respective plasma restriction. A system and method for generating a plasma are also ...

WAKE-UP SYSTEM

Application Number: 20120032616
Publication Date: 2012-02-09
Inventors: Toda, Naohiro; Noguchi, Hiroki

A wake-up system includes an illumination apparatus which irradiated wake-up light, a control apparatus which controls output of the wake-up light irradiated from the illumination apparatus, and an interface apparatus which is operated by a user to input at least a wake-up time, the illumination apparatus includes an output variation apparatus which varies output of the wake-up light to be irradiated, and a color temperature variation apparatus which varies color temperature of the wake-up ...

Shift Register

Application Number: 20120032615
Publication Date: 2012-02-09
Inventors: Tanaka, Shinya; Kikuchi, Tetsuo; Yamasaki, Chikao; Shimada, Junya

Provided is a shift register configured by cascade connecting unit circuits each including a bootstrap circuit. In at least one example embodiment, for the unit circuits, a time period during which a transistor is in an ON state and a clock signal is high level corresponds to a clock passing period. Among transistors whose one conduction terminal is connected to a gate of the transistor, channel lengths of transistors configured such that a low-level potential is fed to gates of the transistors ...

NOVEL LED DRIVER CIRCUIT

Application Number: 20120032614
Publication Date: 2012-02-09
Inventors: SU, Wei-Chuan; LEE, Ko-Yen; HUNG, Chia-Chieh

A novel LED driver circuit, including: a current regulation circuit, having a first end and a second end, wherein a first current is flowing into the second end, and a voltage difference between the first end and the second end is generated in response to the first current; a transistor, coupled with the first end and second end of the current regulation circuit; a bias network, having a first end and a second end, the second end being coupled with the transistor; and a LED module, having at ...

CIRCUITS AND METHODS FOR DRIVING LIGHT SOURCES

Application Number: 20120032613
Publication Date: 2012-02-09
Inventors: LIN, Yung Lin; LIU, Da

A driving circuit for powering a light-emitting diode (LED) light source includes a converter circuit, an energy storage element and a switch element. The converter circuit provides a first output voltage on a first power line to provide power to the LED light source and provides a second output voltage on a second power line that is less than the first output voltage. The energy storage element is charged and discharged to regulate a current through the LED light source. The switch element ...

THERMAL CONTROL OF SOLID STATE LIGHT SOURCES BY VARIABLE SERIES IMPEDANCE

Application Number: 20120032612
Publication Date: 2012-02-09
Inventors: Cross, John; Antony, Biju

A thermal protection circuit, and system and method including same, is provided. The circuit includes a variable impedance circuit configured to be coupled to a constant current source and a plurality of solid state light sources. The constant current source provides a current to the plurality of solid state light sources and provides an output voltage to establish a supply voltage for the circuit. The circuit also includes a temperature sensor configured to sense a temperature of the plurality ...

LED EMITTING DEVICE AND DRIVING METHOD THEREOF

Application Number: 20120032611
Publication Date: 2012-02-09
Inventors: AHN, Byunghak; CHUNG, Jinhwa; CHANG, Frank; CHOI, Moonho

The present invention relates to an LED emitting device and a driving method thereof including at least two LED channels.

If a power source voltage supplied to an LED emitting device reaches a predetermined threshold voltage, the power source voltage is maintained as a threshold voltage during an overvoltage regulation ...

POWER CONVERTER HAVING A FEEDBACK CIRCUIT FOR CONSTANT LOADS

Application Number: 20120032610
Publication Date: 2012-02-09
Inventor: Kang, Douglas

A power converter having a feedback circuit for constant loads includes an input, a switch, an input voltage sense circuit, a feedback circuit, and a controller. The input is to be coupled to receive an input voltage and the switch is coupled to the input. The input voltage sense circuit is coupled to the input to generate an input voltage sense signal representative of the input voltage. The feedback circuit is coupled to an output of the power converter, where the output is electrically ...

DEVICE FOR REGULATING THE LUMINOUS INTENSITY IN FLUORESCENT LAMPS WITH AN ELECTROMAGNETIC REACTANCE AND A STARTER, AND LIGHTING SYSTEM WHICH COMPRISES SAID DEVICE

Application Number: 20120032609
Publication Date: 2012-02-09
Inventors: Bonal Rubio, Roque; Saez Castillo, Antonio; Gomez Lazaro, Emilio

The present invention relates to a device for regulating light intensity in fluorescent lamps with an electromagnetic ballast and starter and a lighting system comprising said device, comprising at least one fluorescent lamp comprising a fluorescent tube (1) which is operatively connected in parallel with a starter (3) and in series with an electromagnetic ballast (4), wherein the device comprising a regulating module (5) connected in series between said fluorescent ...

LIGHTING SYSTEM COMMUNICATIONS APPARATUS AND METHOD

Application Number: 20120032608
Publication Date: 2012-02-09
Inventor: Nerone, Louis Robert

A communications apparatus and techniques are presented for communicating with ballasts or drivers through lighting system power connections in which the power connections are energized with low levels of power to power communications components in the ballast/drivers while the light sources are off and low frequency AC communications signals are transmitted through the power ...

Method of Arranging Light Emitting Diodes Supplied by AC Power with Low Loss and Smooth Illumination in a High Expandable Structure

Application Number: 20120032607
Publication Date: 2012-02-09
Inventors: Chang, Kun-Chieh; Jwo, Ko-Wen

A method of arranging light emitting diodes (LEDs) supplied by AC power with low loss and smooth illumination in a high expandable structure is disclosed. The method includes the steps of: building up a virtual grid having M virtual lateral lines and N virtual vertical lines, which form multiple virtual intersection nodes at the intersections; disposing N−1 lateral LEDs in each virtual lateral line with one lateral LED placed between two adjacent virtual intersection nodes, connecting the ...

Light-Emitting Device

Application Number: 20120032606
Publication Date: 2012-02-09
Inventors: Tanada, Yoshifumi; Fukumoto, Ryota; Takahashi, Kei; Miyake, Hiroyuki

The amplitude of a potential of a signal line is decreased and a scan line driver circuit is prevented from being excessively loaded. A light-emitting device includes a light-emitting element; a first power supply line having a first potential; a second power supply line having a second potential; a first transistor for controlling a connection between the first power supply line and the light-emitting element; a second transistor, which is controlled in accordance with a video signal, whether ...

SYSTEM AND METHOD FOR DIMMABLE CONSTANT POWER LIGHT DRIVER

Application Number: 20120032605
Publication Date: 2012-02-09
Inventor: Peng, Chunghang

An apparatus is disclosed that is capable of delivering substantially constant power to a luminous load with variation in the input voltage and the environment temperature. The apparatus may be further adapted to vary the power supplied to the luminous load based on changes in the input voltage produced by a phase control dimmer or external device. Additionally, if the input voltage is changed due to a user controlling a dimmer device to control the brightness of the luminous load, the ...

SYSTEM FOR DRIVING A LAMP

Application Number: 20120032604
Publication Date: 2012-02-09
Inventor: Hontele, Bertrand Johan Edward

A driver (10) for driving a LED (2) comprises:

- an ACDC converter (5) receiving AC mains voltage and generating DC output current;
- a chopper (6) receiving the DC output current and provide a regularly interrupted output current;
- a ...

Light Emitting Device and Driving Method thereof

Application Number: 20120032603
Publication Date: 2012-02-09
Inventors: Chen, Ching-Yi; Wang, Ching-Hung; Hsu, Sheng-Kai

A light emitting device includes a plurality of light emitting modules and a plurality of voltage controlling circuits capable of being independently controlled. Each voltage controlling circuit includes a dynamic voltage controlling module, a current controlling module, and a luminance controlling module. The dynamic voltage controlling module is used for comparing a voltage level at a second terminal of the light emitting module and a voltage level of a reference voltage source, so as to ...

Method for driving plasma display panel

Application Number: 20120032602
Publication Date: 2012-02-09
Inventors: Setoguchi, Noriaki; Asao, Shigeharu; Kanazawa, Yoshikazu

A method for driving a plasma display panel in which a plurality of first and second electrodes are arranged adjacently each other, a plurality of third electrodes are arranged to cross the first and second electrodes, the plasma display panel having a reset period, an address period, and a sustain discharge period is provided. The method includes in the reset period, applying to the second electrodes a first waveform voltage, whose applied potential increases with time, then applying to the ...

SYSTEM FOR CONTROLLING A PLURALITY OF LIGHT SOURCES

Application Number: 20120032601
Publication Date: 2012-02-09
Inventors: Schreyer, Oliver; Fuhrmann, Peter; Draaijer, Maurice Herman Johan; Luerkens, Peter; Wendt, Matthias

A system (100) for controlling a plurality of light sources (104a-f) by means of light groups, wherein each light group synchronously controls a subset of the plurality of light sources. The system (100) comprises: a central controller (102); a plurality of light sources (104a-f) wired to the central controller (102); and a light sensor (106a-c) wired to the central controller (102). The central ...

LED-BASED LIGHT EMITTING SYSTEMS AND DEVICES WITH COLOR COMPENSATION

Application Number: 20120032600
Publication Date: 2012-02-09
Inventors: Wang, Gang; Li, Yi-Qun; Edwards, Charles Owen

A light emitting system comprises an LED-based light emitting device and a controller for controlling operation of the device. The device comprises at least two LEDs that are operable to generate light of different colors that contribute to the emission product of the device. The controller is operable to control light emission from the LEDs in response to the measured intensity of the first and second color light contributions in the emission product. To measure the individual light ...

Intelligent Light Retrofit

Application Number: 20120032599
Publication Date: 2012-02-09
Inventors: Mohan, Tanuj; Ashar, Premal

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 ...

PROJECTION-TYPE DISPLAY DEVICE AND METHOD OF CONTROLLING THEREOF

Application Number: 20120032598
Publication Date: 2012-02-09
Inventors: Shioiri, Kenichi; Saito, Osamu; Tsuda, Masahide; Yanase, Shigehiro

A projection-type display device according to an embodiment of the invention modulates light emitted from a solid-state light source array and projects the modulated light on a screen. The projection-type display device includes a power source device that generates power used for driving the solid-state light source array using power supplied from a power source, an instant interruption detecting circuit that detects an instant interruption of the power source, and a control device that, in a ...

LIGHT EMITTING DIODE LAMP

Application Number: 20120032597
Publication Date: 2012-02-09
Inventor: LAI, CHIH-MING

An LED lamp includes first and second LED strings connected in parallel to each other and a variable resistor interconnected therebetween. The variable resistor includes a resistance track with resistance coils wound thereon and a slider moveable along the resistance track. One portion of resistance of the variable resistor is connected in series with the first LED string, and the other portion of the resistance of the variable resistor is connected in series with the second LED string. When a ...

PLASMA SOURCE FOR LARGE SIZE SUBSTRATE

Application Number: 20120032596
Publication Date: 2012-02-09
Inventor: KIM, Hongseub

A plasma source for a substrate is provided. The plasma source may include a source electrode and an impedance box. The source electrode receives a source Radio Frequency (RF) from the external and generates plasma based on capacitive coupling within a vacuum chamber. The impedance box connects at one end to an outer circumference surface of the source electrode, and is grounded at the other end to the vacuum chamber, and controls an electric current flowing from the source electrode to the ...

ELECTROMAGNETICALLY-COUNTERED DISPLAY SYSTEMS AND METHODS

Application Number: 20120032595
Publication Date: 2012-02-09
Inventor: SHIM, Youngtack

An electromagnetically-countered display system includes at least one wave source and at least one counter unit. The wave source irradiates harmful electromagnetic waves and the counter unit emits counter electromagnetic waves for countering the harmful waves therewith. Examples of the various counter units for the electromagnetically-countered display system and various mechanisms to counter the harmful waves with the counter units include by matching configurations of the counter units with ...

CONTROL SYSTEM FOR VEHICLE HEADLIGHTS

Application Number: 20120032594
Publication Date: 2012-02-09
Inventor: Hagner, Thorsten

A control system for vehicle headlights includes a navigation device and a control unit which controls the illumination characteristics of the headlights depending on geographic location information received by the navigation device. The illumination characteristics are adapted in compliance with predefined illumination settings if the acquired geographic location information shows that the vehicle headlights are being operated on public roads. The illumination characteristics are adapted with ...