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US20130221857 |
EXPERT SYSTEM FOR ESTABLISHING A COLOR MODEL FOR AN LED-BASED LAMP
Systems and methods for using an expert system to develop a color model for and LED-based lamp for reproducing a target light and calibrating the lamp are disclosed. The CCT of light generated by... |
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US20140210357 |
Adjusting Color Temperature in a Dimmable LED Lighting System
A LED lighting system, such as a dimmable LED lamp, that may simulate the performance of an incandescent bulb. LED strings of different colors may be connected to the output of a single LED driver... |
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US20140265571 |
LED FACILITIES LIGHTING SYSTEM
A facilities lighting system includes a power supply and an AC/DC converter in electrical communication with the power supply. A plurality of lighting fixtures is in electrical communication with... |
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US20150195883 |
POWER OVER ETHERNET LIGHTING FIXTURE
In a first embodiment, a lighting fixture is configured as a power over Ethernet (PoE) powered device (PD), which is capable of facilitating Ethernet-based communications with and receiving power... |
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US20150192285 |
LED Lamp String
The LED lamp string contains a control device connected to a power plug through a power cable, a number of LED lamps through a main cable having a first port, and an auxiliary cable having a first... |
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US20110227490 |
AC LED lamp involving an LED string having separately shortable sections
An LED lamp includes a rectifier, an integrated circuit and a string of series-connected LEDs. The lamp receives an incoming AC signal such that a rectified version of the signal is present across... |
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US20140239828 |
Dim to warm lighting module
The present invention is a lighting module, in particular, a lighting module that emits warmer color light as it dims. The lighting module preferably has a dimmable power source and a printed... |
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US20110181190 |
BRIGHTNESS ADJUSTING CIRCUIT FOR AN LED LAMP
A brightness adjusting circuit for an LED lamp has a compensating circuit, a bridge rectifier, a filter capacitor and a current limiting circuit. The compensating circuit is connected between an... |
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US20130038222 |
COLOR TEMPERATURE ADJUSTMENT FOR LED LAMPS USING SWITCHES
A light-emitting diode (LED) lamp includes a number of different color LEDs that can be turned on and off in different combinations using an external switch operable by a user. A user or a... |
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US20140035472 |
REDUCING LUMEN VARIABILITY OVER A RANGE OF COLOR TEMPERATURES OF AN OUTPUT OF TUNABLE-WHITE LED LIGHTING DEVICES
A system provides white light having a selectable spectral characteristic (e.g. a selectable color temperature, delta uv, and intensity) using a combination of sources (e.g. LEDs) emitting light... |
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US20130127350 |
RECONFIGURABLE LED ARRAYS AND LIGHTING FIXTURES
An optimum regulation method is disclosed for reconfigurable LED arrays used for general illumination applications. This document describes a reconfigurable LED array formed by connecting in... |
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US20140312786 |
LED LIGHT STRIP COMPRISING TWO OR MORE INDEPENDENT CIRCUITS MEETING SEPARATE POWER CONSUMPTION AND ILLUMINATION OUTPUT REQUIREMENTS
A vending machine includes a controller coupled to at least one light emitting diode (LED) light strip mounted within the vending machine and illuminating an interior thereof. The LED light strip... |
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US20130221861 |
METHOD AND DEVICE FOR DRIVING AN LED STRING
The invention relates to a method and a device for driving an LED string of a first LED segment (11) and at least one further LED segment (12, 13, 14) connected in series. Each LED segment has at... |
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US20110273100 |
USER PROGRAMMABLE LIGHTING CONTROLLER SYSTEM AND METHOD
Lighting systems wherein the lighting effects can be customized by the user to include different colors or different color changing effects. The lighting systems are arranged to be used with... |
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US20150091453 |
LED LAMP STRING
A novel LED lamp string is provided whose LED lamps are protected from current/voltage fluctuation. The gist of the present invention lies in the configuration of a number of resistors... |
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US20110285298 |
Illumination Module
A luminous module for a luminous chain may include at least one light source; and at least one electrical connection configured to supply the at least one light source, wherein the luminous module... |
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US20130257279 |
LED DRIVER CIRCUIT AND METHOD
An LED driver design has a single controller used to drive multiple strings of LEDs. In one aspect there is dynamic threshold voltage setting so that the individual characteristics of the LED... |
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US20110163683 |
Solid State Lamp Using Light Emitting Strips
In one embodiment, an LED lamp has a generally bulb shape. The LEDs are low power types and are encapsulated in thin, narrow, flexible strips. The LEDs are connected in series in the strips to... |
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US20110210677 |
HOLIDAY LED LIGHTING SYSTEM AND METHODS OF USE
The present disclosure provides a decorative light string system comprising a light string comprising a plurality of lighting bulbs arranged electrically in series, wherein each light bulb... |
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US20110031889 |
AC-POWERED LED LIGHTING SYSTEM
The present invention relates to an AC-powered LED lighting system made in implementing AC-driven LED lightings that are achieved without the use of a dedicated circuit configuration such as SMPS,... |
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US20140117864 |
WHITE AC LED
A multi-color white LED which can be driven by a single current, and more particularly, to the use of a specific ratio of numbers of different color LEDs to obtain a specific desired color while... |
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US20140339994 |
LIGHTING MODULE
A lighting module includes a power line for receiving a power supply current and a ground line, a segmentation point for cutting the lighting module into two parts, a first set of light sources... |
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US20130293122 |
Reduced Flicker AC LED Lamp With Separately Shortable Sections Of An LED String
An LED lamp with an integrated circuit, a rectifier, and a string of series-connected LEDs rectifies an incoming AC signal. The integrated circuit includes power switches that can separately and... |
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US20110227489 |
Reduced flicker AC LED lamp with separately shortable sections of an LED string
An LED lamp with an integrated circuit, a rectifier, and a string of series-connected LEDs rectifies an incoming AC signal. The integrated circuit includes power switches that can separately and... |
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US20140339992 |
LED Device with Shared Voltage-Limiting Unit and Individual Equalizing Resistance
The present invention relates to a LED device with shared voltage-limiting unit and individual voltage-equalizing resistance, wherein two ends of a LED set constituted by a plurality of... |
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US20120206052 |
LED DEVICE WITH SHARED VOLTAGE-LIMITING UNIT AND INDIVIDUAL EQUALIZING RESISTANCE
The present invention relates to a LED device with shared voltage-limiting unit and individual voltage-equalizing resistance, wherein two ends of a LED set constituted by a plurality of... |
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US20130038211 |
DISPLAY DEVICE AND LED BAR CONNECTION METHOD THEREOF
Disclosed is a display device which includes a display panel, an LED bar configured to output a light to the display panel, and a source printed circuit board including a driver circuit driving... |
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US20110156593 |
BOOSTING DRIVER CIRCUIT FOR LIGHT-EMITTING DIODES
Various embodiments relate to an light-emitting diode (LED) driver and related method that drives various LEDs in an LED string beyond their isolated nominal luminance. Individual LEDs in an LED... |
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US20120081013 |
Energy Conversion Device
According to one embodiment, an energy conversion device comprises a nuclear battery, a light source coupled to the nuclear battery and operable to receive electric energy from the nuclear battery... |
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US20120032597 |
LIGHT EMITTING DIODE LAMP
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... |
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US20130320869 |
ELECTROMAGNETIC BALLAST-COMPATIBLE LIGHTING DRIVER FOR LIGHT-EMITTING DIODE LAMP
A lighting driver includes a shunt switch circuit configured to detect when an input of the lighting driver is connected to mains power without a ballast, and in response thereto to disable the... |
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US20130214690 |
High Efficiency LED Power Supply
There is an increasing need for simple and low cost power supplies to control loads such as battery chargers and LEDs. It is the object of this invention to provide an alternative method for the... |
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US20100295458 |
AC LED MODULE WITH AN IMPROVED POWER FACTOR
An AC LED module with an improved power factor for coupling with an AC source includes a plurality of LED strings and a plurality of connecting-to-middle drive elements. The LED strings are... |
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US20150156833 |
LAMP USING SOLID STATE SOURCE
A lamp includes a single string of light emitting diodes (LEDs), driven in common, configured to cause the lamp to emit a visible light output via a bulb. The lamp also includes a lighting... |
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US20140300271 |
LAMP USING SOLID STATE SOURCE
A lamp includes a single string of light emitting diodes (LEDs), driven in common, configured to cause the lamp to emit a visible light output via a bulb. The lamp also includes a lighting... |
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US20140312787 |
DIMMABLE LED LIGHTING CIRCUITS, CONTROLLERS THEREFOR AND A METHOD OF CONTROLLING A DIMMABLE LED LIGHTING CIRCUIT
Controllers (360, 360′), lighting circuits and methods are disclosed, for a dimmable LED lighting circuit having a series arrangement of two types of LED, the controller comprising a control... |
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US20100320920 |
Decorative Lamp for Displaying Snowing or Water-Flowing Pattern
The present invention relates to a decorative lamp for displaying snowing and water-flowing pattern, comprising a rectification power supply, a controller and a lamp series section connected in... |
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US20130234609 |
LED LIGHTING DEVICE
When a pulsating current is applied to an LED string included in an LED lighting device, and the number of LEDs caused to light up is changed, the LED lighting device is in efficient, since there... |
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US20110163681 |
Solid State Lamp Using Modular Light Emitting Elements
A solid state lamp, such as one that can replace an incandescent light bulb, has a base portion having an electrical connector for connection to a source of power, such as an Edison-type connector... |
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US20120007514 |
LED LIGHTING DEVICE CAPABLE OF CHANGING ILLUMINATION COLOR
A LED lighting device capable of changing illumination color has an adjusting circuit, a bridge rectifier and multiple LED modules. The adjusting circuit is connected to a light regulator and... |
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US20150198290 |
LED LIGHTING SYSTEM
An LED lamp arrangement adapted to replace a fluorescent lamp in a luminaire having a ballast for supplying power to the lamp. The LED lamp arrangement comprises a plurality of LEDs arranged in a... |
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US20100315572 |
CIRCUIT TOPOLOGY FOR DRIVING HIGH-VOLTAGE LED SERIES CONNECTED STRINGS
A system for backlighting a display uses an open or closed loop and small components that are well suited to high-frequency applications. The system includes multiple LED strings, a high-voltage... |
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US20130342120 |
METHOD AND DEVICE FOR LIGHTING A SPACE USING AN LED STRING
In a method of lighting at least part of a space, a light emitting diode (LED) string is used. The LED string comprises a first LED segment and at least one further LED segment, which are... |
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US20140239824 |
LED CONTROLLING CIRCUIT WITH HIGH POWER FACTOR AND AN LED LIGHTING DEVICE
The present invention is suitable for an LED controlling field, and provides an LED controlling circuit with high power factor and an LED lighting device. In the present invention, by using an LED... |
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US20130181619 |
HIGH EFFICIENCY LEDS AND LED LAMPS
In various embodiments, lighting systems include an electrically insulating carrier having a plurality of conductive elements disposed thereon, a light-emitting array, and at least one power... |
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US20150216006 |
MULTI-STAGE LED LIGHTING SYSTEMS
Multi-stage LED drivers and lighting systems are disclosed. The lighting system comprises a bridge rectifier receiving power from an AC power line source, two or more current limiting devices, and... |
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US20140028201 |
LED STRING WITH A CAPABILITY TO MAINTAIN A CURRENT PATH AND LED UNIT THEREOF
An LED string with a capability to maintain a current path has multiple LED units electrically connected in series. Each of the LED units has a base, a holder, a bridge device, a cover and an LED... |
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US20120286666 |
REGULATION OF WAVELENGTH SHIFT AND PERCEIVED COLOR OF SOLID STATE LIGHTING WITH INTENSITY AND TEMPERATURE VARIATION
Representative embodiments of the disclosure provide a system, apparatus, and method of controlling an intensity and spectrum of light emitted from a solid state lighting system. The solid state... |
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US20120268012 |
CIRCUIT FOR DETECTION AND CONTROL OF LED STRING OPERATION
A circuit is disclosed for determining which of a multiplicity of LED strings in an illumination system has a fault. A group of circuits determines the maximum, minimum, midpoint between maximum... |
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US20120019156 |
LED STRING DRIVER WITH NON-DISSIPATIVE REACTANCE BALANCER
A solid state lighting arrangement constituted of: a power source providing a current which is discontinuous in at least one direction; a plurality of light emitting diode (LED) strings arranged... |