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7609006 |
LED light string with split bridge rectifier and thermistor fuse
A string of lights has an electrical plug at one end and a receptacle at the other end and plural light-emitting diodes (LEDs) in series with a negative temperature coefficient (NTC) thermistor....
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7605809 |
Driver and method for driving a semiconductor light emitting device array
A driver and method for driving a semiconductor light emitting device array is provided. The driver includes at least one current regulator unit having a plurality of controllable switches to...
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7597454 |
Christmas light string with socket for connecting to another christmas light string
A Christmas light string is disclosed and includes a plug a power socket, a first cord electrically interconnecting the plug and the power socket, a second cord extending from the plug and being...
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7592757 |
System and method for dimming one or more light source
A system for dimming one or more light sources includes a first light source that emits a light of a first brightness according to an operating condition of the first light source, a second light...
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7576497 |
Synchronous light emitting diode lamp string
The present invention provides a light emitting diode lamp, which includes at least a light emitting diode and a control circuit. The light emitting diode lamp has an anode pin, a cathode pin, and...
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7576496 |
AC powered OLED device
AC powered light emitting device comprises a plurality of organic light emitting diode (OLED) modules. The OLED modules are arranged into a series group where the individual OLED modules are...
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7570235 |
Communication diode driver circuit
A Communication Diode Driver Circuit (CDDC) for selectively illuminating communication diodes (CDs) in response to incoming digital data pulses with a LED drive current I LED (t) close to a nominal...
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7554266 |
Mechanical shunt for use in a socket in a string of lights
A mechanical shunt for use in a socket of a string of lights resides in an otherwise typical lamp of a string of lights. The present shunt is a horizontal spring held in position by a shunt holder...
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7535180 |
Semiconductor light emitting circuits including light emitting diodes and four layer semiconductor shunt devices
Semiconductor light emitting circuits include semiconductor light emitting diodes that are serially connected between a pair of input terminals. Four layer semiconductor devices, such as Shockley...
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7528551 |
LED control system
In one embodiment, an LED system is controlled to have a substantially unity power factor.
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7524085 |
Series wiring of highly reliable light sources
The light array of this invention includes a number of columns and rows of LED's connected in a series/parallel combination. The series parallel combinations effectively optimize the impedance,...
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7521872 |
Integrated lamp with feedback and wireless control
A lamp assembly ( 50 ) employs a reflector ( 52 ) defining a light reflecting area ( 53 ), and a heat sink ( 54 ) defining a circuit housing area ( 55 ). A LED assembly ( 51 ) is disposed within...
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7518319 |
LED lighting device and LCD device using the same
An LED lighting device can compensate a brightness change and a color change caused by a temperature change and exhibit an in-plane uniform luminance and color. A lighting device includes: at least...
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7511436 |
Current control method and circuit for light emitting diodes
A flow of a LED current (ILED 2 ) through one or more LEDs is controlled by a LED current control circuit ( 50 - 54 ) implementing a method ( 30 ) that is independent of an input line and a load of...
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7508141 |
Modular decorative light system
A sculptable, decorative light system includes a number of modules of differing lengths which can respond to commands either in parallel or time delay to create pre-selected light colors and...
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7479738 |
Drive circuit for light emitting diode
A drive circuit for light emitting diode (LED) is provided, which is used to drive a plurality of LEDs to emit light. The LEDs are connected in series into a plurality of LED strings. The drive...
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7449839 |
Structure of LED lighting chain
A LED lighting chain is disclosed to include a front plug, a rear plug, an AC-DC converter formed of four rectifying diodes, and a LED serial set, wherein the LED serial set has a voltage dropping...
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7439944 |
Light emitting diode multiphase driver circuit and method
A method and a circuit for driving light emitting diodes (LEDs) in multiphase are provided. A string of LEDs divided into groups connected to each other in series is provided. Each group is coupled...
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7420332 |
LED lighting device
A first LED array including a first capacitor, LED blocks, and a second capacitor that are connected in series with each other, a second LED array having a similar configuration to the first LED...
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7362057 |
Multi-way flashing control box for lamp strings
A circuit board of a multi-way flashing control box includes a control circuit to be connected electrically to a plurality of LED lamp strings and operable to activate and deactivate the LED lamp...
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7354174 |
Energy efficient festive lamp
The present invention relates to a novel energy saving decorative festive lamp that is ideally suited for use in clubs, restaurants, or decorative applications, where specialized lighting, such as...
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7329995 |
Serial lamp set having security warning functions
A serial lamp set having security warning functions comprising at least one serial lamp set unit composed of a plurality of light emitting elements, insulated electric wires, and power source...
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7301287 |
High power light string device
A high power light string device comprises a plug with a plug blade set, a tail receptacle, and at least an LED string, wherein a first power adaptor disposed in the plug converts an AC voltage...
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7279809 |
Christmas light string with single Zener shunts
A string set of series-connected incandescent bulbs in which substantially all of the bulb filaments in the set are individually provided with a shunt circuit which includes a voltage responsive...
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7276911 |
Detection of malfunctioning bulbs in decorative light strings
A system for locating a malfunctioning bulb in a decorative light string uses an antenna that produces an output signal corresponding to the strength of the electric field produced by a portion of...
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7276858 |
Decorative lighting string with stacked rectification
An improved decorative light string circuit comprises full bridge rectification located in or downstream of the front plug, wherein the rectification circuit contains one or more voltage reducing...
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7265496 |
Junction circuit for LED lighting chain
An LED light string where the parallel connections of additional series blocks of LED lamps are added through an intermediate or junction circuit. The first half of the rectifying diode pair in the...
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7250730 |
Unique lighting string rectification
An improved decorative light string circuit comprises full bridge rectification located in or downstream of the front plug, wherein the rectification circuit contains one or more voltage reducing...
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7242148 |
Continuous current control circuit modules of series string bulbs type (II)
The invention relates to a continuous current control circuit module of series string bulbs type (II), which can maintain the normal current and voltage across each of the bulbs when any of series...
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7230392 |
Analog control of light sources
Analog control of a plurality of light sources, such as light-emitting diodes (LEDs), to generate multiple colors of light. An electronic circuit controls three or more analog outputs in response...
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7202607 |
Year-round decorative lights with time-multiplexed illumination of interleaved sets of color-controllable LEDS
A decorative lighting apparatus provides user-selectable color schemes corresponding to several holidays and other occasions for year-round use. In one illustrative example, the decorative lighting...
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7178961 |
Voltage regulated light string
A string set of series-connected incandescent flasher type lamps in which substantially all of the lamp filaments in the set are individually provided with a voltage regulated shunt circuit, which...
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7175302 |
Year-round decorative lights with multiple strings of series-coupled bipolar bicolor LEDs for selectable holiday color schemes
A decorative lighting apparatus includes a decorative light strand having first, second, and third wires, each with a plurality of lamps coupled in series therealong, and a return wire coupled to...
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7166968 |
DC series connected light string with diode array shunt
A series-connected string of incandescent light bulbs, operating on half-wave or full-wave rectified DC voltage, each having connected thereacross a filament voltage regulating shunting circuit...
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7157866 |
Light emitting element driving device and portable apparatus equipped with light emitting elements
A driving device for driving multiple (R-, G-, and B-) groups of LEDs operative at different voltages, utilizing a battery supplying a power supply voltage of a step-up voltage. Under normal...
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7145343 |
Repair device for decorative light shunt
A repair device for fixing a malfunctioning shunt across a failed filament in a light bulb in a group of series-connected miniature decorative bulbs includes a high-voltage pulse generator...
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7132793 |
Filament assembly for a twinkling bulb
A filament assembly for a twinkling bulb has first and second magnesium-plated filaments, a glass bead, a fuse and a tungsten filament. The second magnesium-plated filament is parallel to the first...
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7109664 |
LED light with blaze-like radiance effect
This invention concerns a LED light which emits blaze-like radiance comprising a negative prop stand, with one end extending to a negative receiver which can connect to the negative power supply, a...
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7102301 |
Year-round decorative lights with selectable holiday color schemes
A decorative light strand has user-selectable color schemes corresponding to each holiday for year-round use. The light strand has a plurality of differently colored lights; a decorating selector...
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7053560 |
Bi-directional LED-based light
At least one pair of LEDs, preferably of the super-luminescent type, are connected in parallel but with reverse polarity in series with at least one resistor and driven by a voltage source, which...
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7049769 |
Circuit arrangement and method for an illumination device having settable color and brightness
It is intended to be possible to use a respective setting apparatus (E 1, E 2 ) to set the color and the brightness of an illumination device separately. Light sources having three different...
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7049761 |
Light tube and power supply circuit
The present invention provides a light tube for illumination by a power supply circuit including a bulb portion and a pair of end caps disposed at opposite ends of the bulb portion. A plurality of...
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7049757 |
Series connected OLED structure and fabrication method
A light emitting device comprises a plurality of organic light emitting diode (OLED) modules. The OLED modules are arranged into a series group where the individual OLED modules are electrically...
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7045965 |
LED light module and series connected light modules
A lighting module with improved reliability including a pair of LEDs connected in parallel and with the same polarity and a method for making the said light module are disclosed. The parallel LEDs...
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7029145 |
Low voltage decorative light string including power supply
One or more strings of decorative lights are supplied with power by converting a standard residential electrical voltage to a low-voltage, and supplying the low-voltage to at least one pair of...
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7012379 |
Cuttable illumination device
A cuttable illumination device has a first lamp, a second lamp, a current source element, and a voltage breakdown element connected such that the first lamp may be removed from the device without...
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6972528 |
Structure for LED lighting chain
An improved structure for LED lighting comprising an AC to DC converter, said converter comprising four rectifying diodes, and at least one LED serial set. The rectifying diodes can be divided into...
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6946805 |
Controller for a light display
A controller for controlling decorative light displays includes plural outlet ports for providing power to a plurality of decorative light strings. The controller alternately illuminates and dims...
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6933680 |
Decorative lights with at least one commonly controlled set of color-controllable multi-color LEDs for selectable holiday color schemes
A decorative light strand has user-selectable color schemes corresponding to several holidays for year-round use. The light strand has a plurality of lights including at least one...
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6858993 |
Driving means for driving light sources in various illuminating pattern and luminous shoes applied thereof
This invention relates to a driver circuit for driving at least one light source to light in various illuminating patterns according to a predetermined switching operation, and luminous shoes...
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