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7619367 |
Electronic ballast protection
A method of electronic ballast protection including providing an electronic ballast having an AC/DC converter 104 with an electronic ballast input and a mains voltage connection 103 connectable...
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7573396 |
Air craft emergency lighting system
An aircraft emergency lighting system including: a plurality of units having communication devices arranged to communicate wirelessly with a master controller, wherein each unit is wired to a...
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7569996 |
Omni voltage direct current power supply
A battery operated LED lighting apparatus including: a battery outputting a battery voltage; a light emitting diode or array of light emitting diodes; and a power supply including a boost...
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7520072 |
Exit signs with and without emergency lighting
Emergency signs and combination emergency signs and emergency lights wherein the combination signs are compact for shipment and are energy efficient using first interior light emitting diodes,...
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7486033 |
Lighting device
A lighting device including: a power management module connected with and processing alternating-current power and outputting direct-current power; a light source driving module receiving and...
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7466081 |
Emergency lighting
An emergency lighting with an electrical illuminant (DL 1 , DL 2 , DL 3 ), which, as a power supply drops below a predeterminable value, can be connected to an energy source that can be charged...
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7391159 |
Lighting device with multiple power sources and multiple modes of operation
Lighting device having a number of light sources for illumination an area around the lighting device. The lighting device including capabilities for generating illumination when a primary power...
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7199529 |
Inductive lighting system with back-up battery
A pathway lighting system has self-contained, battery up scaled lighting modules ( 20 ), each module including at least one secondary coil. A plurality of primary coils are housed within a carrier...
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7139680 |
Apparatus and method for standby lighting
A method and system for standby lighting uses a power supply module and a standby lamp in conjunction with an HID lamp. The power supply module has a processor with smart trigger circuitry, soft...
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7122973 |
Light-generating apparatus control system
A control system for a light-generating apparatus can include a control cyclically operating a switching element in series with the circuit including the apparatus's power source and light. Upon...
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7090371 |
Removable headlamp for a vehicle
A headlamp is used as an emergency light by removably mounting the headlamp and connecting the headlamp to a rechargeable battery source separate from and in addition to the connection to the...
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7071625 |
LED illuminator with capability of stable brightness
An LED illuminator with the capability of stale brightness, which has the function of emergent lighting and night lighting, is disclosed. The disclosed LED illuminator has a charging unit, a...
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7057351 |
Emergency lighting function illumination appliance
An emergency lighting function illumination appliance comprised of a fluorescent lamp tube, a controller, a mains power circuit capable of processing mains electricity for lighting, and a backup...
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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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7015650 |
Circuit devices, circuit devices which include light emitting diodes, assemblies which include such circuit devices, flashlights which include such assemblies, and methods for directly replacing flashlight bulbs
A circuit device for providing energy to at least one electrical component, such as a light emitting diode (LED). The circuit device comprises a positive contact, an inductor, a diode and a...
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6987363 |
Emergency ballast for compact fluorescent lamp with battery heater
An emergency ballast for a compact fluorescent lamp including a heater disposed adjacent the battery for maintaining the battery at a safe and effective operating temperature during the time which...
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6986589 |
Apparatus and methods for providing an emergency lighting augmentation system
The present invention includes an emergency lighting device comprising, at least one light emitting diode (LED), a local energy source such as a lithium ion battery, a control circuit in electric...
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6972570 |
Quick-connect ballast testing and monitoring method and apparatus
A monitoring and testing apparatus for quick-connection to a fluorescent lamp assembly includes a test circuit positioned in a casing and having wire receiving clips for quick receipt and release...
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6933678 |
Emergency lighting function illumination appliance
An emergency lighting function illumination appliance comprised of a fluorescent lamp tube, a controller, a mains power circuit capable of processing mains electric power for lighting, and a backup...
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6900849 |
Signal processing apparatus having means for reducing the power consumption
A signal processing apparatus ( 1 ) includes a power supply input ( 20 ), a power supply connection ( 30 ) and a power supply output ( 27 ). A supply voltage generator ( 33 ) is connected to the...
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6900820 |
Display apparatus for a computer having a storage medium
The refresh rate of an LCD panel is changed as the brightness of the LCD panel changes. When the brightness of the LCD panel is decreased, the refresh rate is also decreased. In addition, whether...
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6900595 |
Illumination unit for normal and emergency operation
An illumination unit, that comprises a lamp; an adaptor for attaching the electrical contacts of the unit to contacts of a socket being connected to an electricity network feeding the unit through...
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6864634 |
Method and system for transmitting and displaying information on a wireless device using plastic electronics
The present invention provides a structure, method, computer program and a system for displaying information on a portable wireless device. This may be accomplished by receiving a light signal...
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6844682 |
Fluorescent ballast with emergency lighting capability
A gas discharge lighting system with emergency lighting capability includes a gas discharge lighting device, a source of alternating current input power, and an electronic ballasting circuit having...
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6841941 |
Brightness controllable flashlights
Flashlights having selectively controllable brightness levels, preferred embodiments of which comprise in combination: a battery; a switch having an OFF position not connected to the battery, a...
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6814461 |
Battery-operated power tool with light source
A battery-operated power tool includes housing, a motor disposed in the housing, a battery, a light source, a driver circuit, and first and second physical switches. The driver circuit includes a...
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6788000 |
Distributed emergency lighting system having self-testing and diagnostic capabilities
A distributed emergency building lighting system senses the presence or absence of AC power at the input of a switch controlling lighting in a designated area or an input stimulus such as an alarm...
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6753651 |
Emergency ballast with battery heater
An emergency ballast for a fluorescent lamp including a heater disposed adjacent the battery for maintaining the battery at a safe and effective operating temperature during the time which the lamp...
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6718213 |
Variable base load energy management system and method
The present invention is a system and method for variable base load demand-side energy management. The system of the present invention includes a power reduction device receiving electrical power...
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6717367 |
Emergency lighting arrangement and apparatus
An emergency lighting arrangement and an emergency lighting apparatus, the arrangement being configured to be coupled to a supply network and the arrangement comprising an electronic ballast for...
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6713966 |
Event and arc detection in lamps
A power supply system has a battery for supplying power and a lamp having a plurality of filaments therein. Each of the filaments is connected to the battery through a filament power feed line,...
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6710546 |
Remote control test apparatus
A remote control system for testing the ready status of lighting fixtures such as emergency exit signs and for operating such fixtures as by controlling the off/on status and dimming of the...
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6628083 |
Central battery emergency lighting system
An integral emergency lighting system which utilizes the same branch circuit wiring as main alternating current (AC) power to selectively supply emergency power to light fixtures during an...
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6621225 |
Intelligent electrical switching devices
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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6609804 |
LED interior light fixture
A low voltage ceiling or wall mounted light fixture for residential and commercial lighting includes a plurality of high lumen white LED lights incorporated within the fixtures, a light color...
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6605900 |
Rechargeable emergency lamp tube
A rechargeable emergency lamp tube includes a lamp tube holder, the lamp tube holder having a base adapted to obtain AC power supply from an electric socket and a socket adapted to hold a tube for...
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6583571 |
Emergency illuminator
An emergency illuminator includes a rectifying circuit for converting an input AC voltage to a DC voltage; an electric magnetic device having a primary side coil electrically connected to an output...
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6577136 |
Modular self-diagnostic and test switch assembly for controlling inverter operations
A modular self-diagnostic assembly for controlling diagnostic, charge and transfer functions necessary to operation of fluorescent emergency lighting packs also referred to as inverters or...
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6563269 |
Rechargeable portable light with multiple charging systems
A rechargeable portable light having a housing member with an opening for the emission of light, and several possible charging systems including a solar panel, an AC charger, an auto charger, and a...
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6538568 |
Emergency lighting remote monitoring and control system
An emergency lighting monitoring and control system controls and monitors the emergency lights in a building. A central control unit automatically schedules self tests for each of the emergency...
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6522147 |
LED test switch and mounting assembly
A manually operable test switch useful for testing of inverter units installed in fluorescent lighting fixtures, the inverter units providing an emergency lighting capability to the lighting...
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6498436 |
Method for operating a lamp, particularly for medical applications, and a lamp having a discharge lamp
In order to make continuous lamp operation in a failsafe lamp, particularly a lamp for medical applications, having a discharge lamp possible even When changing over between a power supply system...
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6359392 |
High efficiency LED driver
A high efficiency light emitting diode (LED) driving circuit includes a first LED coupled in a forward current path between first and second nodes and a second LED being coupled in a reverse...
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6356024 |
Lighting device for normal and emergent use
A lighting device comprises a lighting unit, a stabilizer electrically connected to the lighting unit, and a circuit board. The circuit board comprises a detecting circuit connected to a power...
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6339296 |
Low profile emergency ballast
An emergency ballast for a low profile fluorescent lamp fixture including an AC ballast including an end of lamp life shut down circuit. The emergency ballast includes a timing circuit which...
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6285132 |
Emergency lighting test system and method
An emergency lighting test system and method automatically schedules self tests and uses novel test methods to thoroughly test an emergency lighting system. An emergency lighting system comprises a...
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6268714 |
Voltage limiting circuit connected in parallel with a battery set and including a series-connected impedance which permits linear adjustments
A voltage limiter for a battery charger includes a diode connected in parallel across the terminals of the battery, the diode being further connected in series with an impedance arranged to counter...
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6215249 |
Fluorescent lamp assembly
A fluorescent lamp assembly is adapted for connection with a power source, and includes a plurality of sets of fluorescent lamps, a plurality of control units and a main power switch. Each of the...
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6207943 |
Consistent brightness backlight system
In order to extend the life of a light source such as a CCFL or the like being used in backlighting system for an LCD, the present invention includes an optical sensing circuit, an amplification...
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6181067 |
Portable lighting product, a portable lighting product circuit and a functioning method for a portable lighting product circuit
The present invention relates to a circuit for a portable lighting product such as flashlight, lantern, desk lamp, area light, combination area light and flashlight, front and rear bicycle light,...
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