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US20110050133 |
LED Lamps with Packaging as a Kit
Apparatus and methods for re-usable packaging of a lighting product include providing a container body to receive an electric lamp and a cover that can be repeatedly sealed and unsealed to the...
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US20120194098 |
BRIGHTNESS CONTROL FOR LIGHTING FIXTURES
A brightness controller determines a dimmer setting and adjusts brightness of a light source according to the dimmer setting.
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US20100315022 |
Handheld Illuminating Torch
A handheld torch which comprises a cylindrical body that has a top and a bottom. The body is configured to be grasped by a person and is preferably made of wood. The torch includes a window portion...
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US20110080748 |
Lamp Seat Structure Capable of Adjusting Light Source Sensing Direction
A lamp seat structure capable of adjusting light source sensing direction includes a connecting seat and a lampshade, or includes a connecting seat and a light bulb. The connecting base includes a...
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US20100327774 |
Housing Illumination for Portable Electronic Devices
Systems, devices and methods for electronically marking a housing of a portable electronic device are disclosed. When the housing of the portable electronic device is electronically marked, the...
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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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US20110068714 |
HIGH PRESSURE DISCHARGE LAMP LIGHTING DEVICE AND ILLUMINATION INSTRUMENT
In an event of switching a DC output voltage of a boost chopper circuit from a first DC output voltage to a second DC output voltage, a boost chopper control circuit operates a boost chopper...
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US20130113376 |
PHOTOVOLTAIC MODULE
A solar photovoltaic module includes a solar panel that generates solar power, a light-emitting diode (LED), and a micro-chip unit that is electrically coupled between the solar panel and the LED,...
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US20110309770 |
LED LAMP HEAD WITH VARIABLE BRIGHTNESS
A lamp head is configured to be electrically coupled solely to a power-supply element and a return element. A power voltage carried by the power-supply element is regulated by a control element....
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US20110291570 |
Energy-Efficient Luminaire with Automatic Multilevel Illumination
One embodiment of an energy-efficient light fixture with automatic multilevel illumination comprising a housing that contains multiple ballasts and multiple lamps at least one of which is...
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US20120194100 |
LIGHTING DEVICE AND LUMINAIRE
According to one embodiment, a lighting device includes a lighting circuit, a lighting time measuring circuit, an initial illuminance correction control circuit and a dimming control circuit. The...
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US20110127928 |
Automatic Calibration of an Automated Dimmer
The present specification discloses a method and device for automatically calibrating a reference light level for an automated dimmer for electric lights, such as fluorescent lamps. An automatic...
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US20110175540 |
OVERLOAD PROTECTION DEVICE FOR LED LUMINARY
An overload protection device for LED luminary includes a light bulb connected in front of a circuit that has a single or a group of LED luminaries thereon. The light bulb forms an energy...
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US20120080420 |
POWER CONTROL CIRCUIT AND METHOD FOR STABILIZING A POWER SUPPLY
The present invention provides a power control circuit connectable to a load adapted to receive a power supply, the power control circuit adapted to absorb power from the power supply and adapted...
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US20050200306 |
Mobile stage lighting system
A mobile stage lighting system configured to be positioned on a film stage and cast soft light upon subjects and objects on stage. The lighting system includes a light frame having a plurality of...
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US20090121655 |
Terminal device and computer-readable storage medium
A terminal apparatus and a computer-readable storage medium capable of achieving reduction of power consumption by appropriately controlling lighting of a display unit are provided. A CPU lights or...
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US20110031901 |
LAMP HAVING SELF-REGULATED LIGHTING
A portable electric lamp comprises a lighting module with LEDs and user control means connected to an electronic control circuit to define different lighting modes. An optic sensor is housed in the...
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US20120262091 |
Portable Lighting Devices
A flashlight having a locking mechanism for securing a head skirt to a head assembly is disclosed. A circuit for temporarily remember the mode of operation of the flashlight is also disclosed.
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US20120098447 |
METHOD FOR ADJUSTING LIGHT BRIGHTNESS USING A TOGGLE SWITCH AND RELATED ILLUMINANT SYSTEM
A method for adjusting the brightness of a light source is performed according to the status of input voltage which is determined by detecting how and how many times a toggle switch switches state....
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US20120223650 |
LIGHTING DEVICE
Information technology is becoming more and more present in illumination applications, such as lighting devices. To limit the installation effort and cost of such illumination applications lighting...
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US20130127372 |
POWER SUPPLY FOR XENON LAMPS IN AN ACCELERATED WEATHERING TEST APPARATUS
A power supply for use in an accelerated weathering test apparatus can control both the xenon lamp radiated spectrum and its intensity in order to fully simulate the sun's daily cycle, improve the...
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US20130049591 |
FLUORESCENT LAMP SUPPORT
Modular light fixtures and methods for constructing modular light fixtures are provided. A modular light fixture in one embodiment comprises a first end section having a first housing and a first...
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US20120268013 |
DYNAMIC-HEADROOM LED POWER SUPPLY
A voltage level supplied to power a plurality of LED light fixtures is dynamically adjusted to control the headroom of the voltage level. The current drawn by at least one of the plurality of LED...
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US20120249014 |
CIRCUIT FOR LEAKAGE-CURRENT ELIMINATION IN LED T8 FLUORESCENT TUBE
An electric-shock protection circuit that incorporates a PWM start-up control circuit for controlling the start-up of the PWM controller IC. When an electric-shock current test is conducted, the...
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US20120262093 |
LIGHTING DEVICE CAPABLE OF MAINTAINING LIGHT INTENSITY IN DEMAND RESPONSE APPLICATIONS
Aspects of the present invention further include a lighting system comprising a lighting source, a connector in electrical communication with the lighting source and an external power source, an...
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US20120187870 |
LIGHTING DEVICE AND LUMINAIRE
According to one embodiment, a lighting device includes a lighting circuit and a control circuit. The lighting circuit includes an output end to which an illumination lamp is connected, and lights...
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US20120268038 |
Layered Dimmer system
A layered dimmer formed of different layers. The front layer may be a scattering layer, and the back layer may be a reflective layer. The light beam is scattered prior to reflecting, to avoid...
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US20090289580 |
BACKLIGHT ADJUSTMENT SYSTEM
A preferred embodiment relates to controlling the amount of backlight in an electronic display to account for the temperature in the backlight cavity. Another embodiment relates to a system for...
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US20110074314 |
SYSTEM AND METHOD FOR CONTROLLING ELECTRICAL POWER OF LED AND LED PROJECTOR HAVING THE SAME
A method for controlling electrical power of light emission diodes (LED) is provided. The above method comprises steps of providing a supply voltage to the LED driver; providing a driving current...
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US20110199012 |
Driving Circuit For Lighting Lamp And Cold Cathode Fluorescent Lamp Using Driving Circuit Thereof
A driving circuit for lighting lamp is provided, including, in the order of, a bridge rectifier, an EMC filter, a control circuit, a power transformer and a cold cathode fluorescent load, with a...
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US20110037401 |
POWER CONVERSION DRIVING CIRCUIT AND FLUORESCENT LAMP DRIVING CIRCUIT
A power conversion driving circuit is provided. The power conversion drive circuit includes a converting circuit, a control circuit and a load circuit. The converting circuit is coupled to an input...
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US20120112667 |
Controlling Intensity of a Light Through Qualified Motion Sensing
Methods and apparatuses for controlling light intensity of a light through motion sensing are disclosed. One method includes sensing a first instance of motion. The light is activated only if...
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US20130093358 |
DRIVING CIRCUIT OF LIGHT EMITTING DIODE AND GHOST PHENOMENON ELIMINATION CIRCUIT THEREOF
A driving circuit of a light emitting diode (LED) and a ghost phenomenon elimination circuit thereof are disclosed. The ghost phenomenon elimination circuit which includes a ghost phenomenon...
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US20120200235 |
LAMP POWERING TECHNOLOGY
A device is designed for channeling electricity to a lamp, and adjusts downwards the amount of power channeled to the lamp as a function of available electrical energy in the source. In so doing, a...
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US20110006706 |
LATCH-OFF OF REAL TIME SYNCHRONOUS RECTIFICATION FOR LIGHT LOAD CONTROL
The present invention discloses a light load control circuit and the method accordingly where the synchronous rectification is latched off selectively according to the gate voltage of the...
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US20130088168 |
COMMISSION OF DISTRIBUTED LIGHT FIXTURES OF A LIGHTING SYSTEM
Apparatuses, methods, apparatuses and systems for commissioning a light fixture are disclosed. One method includes receiving, by the light fixture, a message from a central controller, wherein...
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US20110254469 |
DIMMING CIRCUIT AND METHOD FOR LEDS
A dimming circuit and method for a LED provide a first driving voltage or a second driving voltage according to a dimming signal provided by a functional IC to enable or disable the LED. The values...
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US20120280565 |
System and Method for an Intelligent Power Controller
In accordance with an embodiment, a method of operating a node coupled to a power network and a communications link includes receiving a status from a further node coupled to the power network via...
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US20110012535 |
PORTABLE LIGHTING DEVICES
A portable lighting device and method of operating the portable lighting device are disclosed. The portable lighting device is configured to operate using a portable source of power having a...
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US20110012534 |
PORTABLE LIGHTING DEVICES
A portable lighting device and method of operating the portable lighting device are disclosed. The portable lighting device is configured to operate using a portable source of power having a...
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US20110109249 |
DIMMABLE LED LAMP AND DIMMABLE LED LIGHTING APPARATUS
A dimmable light-emitting diode (LED) lamp and a dimmable LED lighting apparatus thereof are provided. The dimmable LED lamp includes a bridge rectifier, a toggle detector, a sustain voltage supply...
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US20130127371 |
CMOS Bootstrap Circuit For DC/DC Buck Converter Using Low Voltage CMOS Diode
A modified bootstrap circuit utilized, for example, in a high voltage DC/DC CMOS buck converter to convert a high input voltage (e.g., 24V) to a regulated voltage (e.g., 4V) for use, for example,...
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US20080174254 |
Controlling Lighting in a Digital Video Stream
An approach for controlling lighting in a digital video stream is presented. A user loads digital content into a light tracking system. The digital content includes three tracks, which are a video...
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US20130026951 |
LED Dimming method and LED Dimming System
The present invention discloses a LED dimming method and a LED dimming system, wherein the LED dimming method comprises the following steps: A: calculating the equivalent current flowing through...
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US20110304279 |
OPEN CIRCUIT VOLTAGE CLAMP FOR ELECTRONIC HID BALLAST
An electronic high intensity discharge (HID) ballast (102) is presented which includes a dual mode buck converter (120) providing a DC output voltage (122) to drive an inverter (140), where the...
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US20130106311 |
Power Supply Device and Lighting Device
According to one embodiment, in a power supply device, a power conversion circuit which outputs a power supply voltage to a load by converting the power supply voltage into a predetermined output...
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US20120139447 |
DRIVING CIRCUIT HAVING A POWER FACTOR CORRECTION (PFC) FUNCTION
A driving circuit having a power factor correction (PFC) function includes a power converter, a harmonic wave generator, a voltage divider, and a modify element. The power converter receives AC...
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US20110121759 |
METHOD AND GAS DISCHARGE LAMP WITH FILTER TO CONTROL CHROMATICITY DRIFT DURING DIMMING
Techniques are disclosed that allow for the use of metal halide lamps in dimming applications, as well as other discharge lamps susceptible to dimming-induced chromaticity drift. Examination of...
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US20120104975 |
LIGHTING SYSTEM ELECTRONIC BALLAST OR DRIVER WITH SHUNT CIRCUIT FOR LIGHTING CONTROL QUIESCENT CURRENT
Ballasts and LED drivers are presented for powering at least one light source, in which a shunt circuit provides a high impedance to allow operation of the light source when the AC input power...
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US20110012538 |
LATCH-OFF OF SYNCHRONOUS RECTIFICATION FOR LIGHT LOAD CONTROL
Disclosed is a light load control circuit and the method accordingly where the synchronous rectification is latched off when the light load condition is detected for several successive cycles.
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