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Document Title |
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7598683 |
Control of light intensity using pulses of a fixed duration and frequency
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...
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7592925 |
Lighting control having an idle state with wake-up upon actuation
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....
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7573212 |
Automatic power control module for battery powered devices
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...
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7541753 |
Starter for low-pressure discharge lamps
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...
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7522211 |
Studio light
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...
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7514884 |
Microprocessor controlled time domain switching of color-changing lights
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...
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7514882 |
Lamp driving device and method
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...
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7471051 |
Advanced low voltage lighting system
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...
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7462997 |
Multicolored LED lighting method and apparatus
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...
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7458934 |
Electrical adapter for medical diagnostic instruments using replaceable LEDs as illumination sources
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...
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7449847 |
Systems and methods for synchronizing lighting effects
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...
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7443111 |
Liquid crystal display backlight inverter
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...
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7436134 |
Cyclical, aquarium and terrarium light
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...
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7432670 |
Device for turning on high-pressure discharge lamp and lighting apparatus equipped with the device
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 ( 105 a ) in a...
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7420337 |
System and method for open lamp protection
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...
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7394211 |
Step down power management system for LED flashlight
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....
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7385359 |
Information systems
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...
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7368884 |
DC/DC converter
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...
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7355353 |
Illumination control circuit
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...
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7336037 |
Intelligent electrical switching device
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...
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7309965 |
Universal lighting network methods and systems
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...
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7298090 |
Light assembly having light changing device
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...
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7294978 |
Efficient lighting
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...
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7294977 |
Lamp dimming system and methods
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....
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7291986 |
Step sinusoidal voltage controlling method for hid, flourescent and incandescent light dimming applications
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...
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7274160 |
Multicolored lighting method and apparatus
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...
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7261433 |
Miniature flashlight having replaceable battery pack and multiple operating modes
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...
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7245085 |
Lamp fault detector
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...
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7242157 |
Switched-voltage control of the magnetization of current transforms and other magnetic bodies
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...
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7239089 |
Power supply apparatus for high pressure discharge lamp
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...
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7221110 |
Lighting control system and method
A lighting control system includes a plurality of light controllers. Each light controller contains a microprocessor-based intelligence. The plurality of light controllers form a distributed...
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7218060 |
Flyback ballast for fluorescent lamp
A flyback ballast for fluorescent lamps is provided. A transformer is utilized to control the power delivered to the lamp. A first switch is coupled to the first winding of the transformer. A first...
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7187141 |
Methods and apparatus for illumination of liquids
Methods and apparatus for illumination of liquids in a variety of environments. In one example, multi-color LED-based light sources are employed to achieve a wide range of enhanced lighting effects...
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7180250 |
Triac-based, low voltage AC dimmer
A two-wire triac-based low voltage AC dimmer adapted for configuration in series with a typically incandescent lighting load. An external step-down transformer provides a source of low AC voltage,...
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7141749 |
Socket switch for light bulb
A socket switch for a light bulb comprises a shell, a main body, a grounding unit, a switch unit, an electric conduction unit, wherein a holding chamber is formed inside the shell. The shell has...
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7135824 |
Systems and methods for controlling illumination sources
Provided are methods and systems for controlling the conversion of data inputs to a computer-based light system into lighting control signals. The methods and systems include facilities for...
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7122976 |
Light management system device and method
A lighting control system is disclosed. The lighting control system is electrically coupled to a load circuit for controlling indoor and/or outdoor lighting. The lighting control system includes a...
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7119503 |
Temperature-to-color converter and conversion method
A color-to-temperature converter senses temperatures of a device, translates the temperatures into light of different colors, and emits or displays the light. The color-to-temperature converter...
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7102538 |
LED signal light
The present invention provides an LED signal light device comprising a central processing unit, a control panel, an LED signal light, an output and input interface, a battery and an adapter. The...
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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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7067995 |
LED lighting system
Method and system are disclosed for compensating for color variations due to thermal differences in LED based lighting systems. The method and system involves characterizing the LEDs to determine...
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7067992 |
Power controls for tube mounted LEDs with ballast
A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power...
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7061190 |
Circuit arrangement and operating device for operating lamps
The invention relates to circuit arrangements for operating lamps and to operating devices which contain such circuit arrangements. A first stage of a circuit arrangement according to the invention...
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7057889 |
Apparatus and method for cable management
A monitoring device comprises a housing, a sensing device movable relative to the housing, and a cable having one end secured relative to the housing and another end secured to the sensing device....
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7045964 |
Emergency lighting system with automatic diagnostic test
An emergency lighting system powers all the luminaires of a lighting system during normal use, and switches from utility power to an emergency power source to drive some of the luminaires during a...
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7042173 |
Controllable lighting system with a second communication protocol and appliances for this purpose
The invention relates to an electronic ballast and to a controller which drives this ballast, in which two communication protocols are provided for the digital drive.
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6975079 |
Systems and methods for controlling illumination sources
Provided are methods and systems for controlling the conversion of data inputs to a computer-based light system into lighting control signals. The methods and systems include facilities for...
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6963178 |
Apparatus for controlling operation of gas discharge devices
A power controller for fluorescent lamp dimming is disclosed, using all digital internal and external programmable controls. A specific ASIC is described. A gate array and microcomputer share...
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6949894 |
Digital pool light
The instant invention is a programmable, multi-colored, digital pool light system capable of operating multiple light sources and varying the power provided to each light bulb providing virtually...
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6936980 |
Wheel rim device with patterned light capable of automatically generating electric power
A wheel rim device with patterned light capable of automatically generating electric power has a wheel rim, an automatic generating assembly, a rectifier/filter circuit, a circuit board, a...
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