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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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7492103 |
Energy saving lamp with sensor
Disclosed is a multi-functional energy-saving fluorescent lamp in which an illumination sensor for distinguishing day and night, a timer for time control, and an infrared sensor for sensing a human...
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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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7408305 |
Codable electronic circuit arrangement and method for producing it
A codable electronic circuit arrangement, in particular an LED circuit arrangement ( 1 ), having a lead ( 3 ), via which electronic circuit elements ( 6 ) of the circuit arrangement, in particular...
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7358961 |
User interface for controlling light emitting diodes
A LED lighting system ( 100 ) employing a LED light source ( 115 ), a user interface ( 124, 128, 134, 138 ), and a controller ( 112 ). The LED light source ( 115 ) includes a plurality of colored...
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7342364 |
Light source
A light source comprising a light emitting diode comprising a GaN-based compound and having a single quantum well structure, and a driving voltage source for applying a pulse voltage to the light...
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7312581 |
Circuitry and methods for improving the performance of a light emitting element
Light emitting elements with preselected or adjustable impedance characteristics are provided. Embodiments using a preselected impedance characteristic obtain significant performance benefits...
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7129652 |
System and method for driving a plurality of loads
A system for controlling a plurality of load devices includes a high-side system operative to source current relative to at least two associated outputs. A low-side system is operative to sink...
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7098877 |
Driver circuit
A driver circuit that allows high-speed switching when the reference current (I) is small. The driver circuit includes a drive current generation circuit ( 220 ) for supplying to a first node ( 232...
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7005802 |
Retrofit kit for modular lamp controller
Kits and methods and apparatus are provided for retrofitting a lamp for use with a modular lamp controller. In a representative embodiment, a kit includes a port connector, a first portion of a...
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6836079 |
Light emitting lamp
The present invention relates to a light emitting lamp for controlling various brightness and color more efficiently. The light emitting lamp having plural red color emitting device, green color...
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6661176 |
High pressure discharge lamp, high pressure discharge lamp lighting apparatus and luminaire therefor
A high pressure discharge lamp includes a light-transmissive ceramic discharge vessel with an envelope having a maximum outer diameter D1 and open ends, a metal pipe having one end, i.e., a top end...
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6654066 |
High-speed flat-panel display interface
A display interface is arranged to processes analog input signals to provide digital output signals. The display interface includes a series of programmable current sources, an input buffer...
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6642666 |
Method and device to emulate a railway searchlight signal with light emitting diodes
A railway searchlight signal uses a printed circuit board populated by three arrays (green, red and yellow) of LEDs. The LEDs are lit by a standard color light power supply unit (PSU). As only one...
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6642667 |
Automatic shut-off for flashlights
A flashlight includes a motion detector and a light intensity detector for automatic shutoff of the flashlight when unused for a period of time. A timer for turning off the flashlight bulb is reset...
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6633140 |
Display apparatus with a combined structure of electron gun and video unit
A display apparatus using clamps for coupling an electron gun unit with a video unit is provided. The display apparatus may be constructed using a panel on which a picture is displayed, a funnel...
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6628080 |
Spring clip for lamp with shroud
A spring clip 10 for assembling a light source to a shroud comprises a base 12 extending in a first plane and having an aperture 14 centrally located therein. Aperture 14 is substantially...
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6603342 |
Light emitting element driver with low supply voltage
A light emitting element driver composed of two transistors, one ground resistor, one inductance and a single capacitor is arranged to drive an LED with a supplied voltage as low as about 0.92 V....
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6577081 |
Safety shield assembly for electrical apparatus
A safety shield assembly for an electrical apparatus comprises a bellows which is recessed into the planar surface of the apparatus which surrounds a pair of electrical blades, and which faces the...
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6573665 |
Inspection lamp with interchangeable AC or DC power cords
A hand-held inspection lamp is described. The lamp includes a multi-pin receptacle capable of connecting to a cord carrying alternating current and, alternatively, a cord capable of carrying direct...
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6509701 |
Method and device for generating optical radiation
The present invention may be used in the field of microelectronics, in medicine as well as in the production of lighting appliances. The method and the device of the present invention are used for...
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6472990 |
Pool safety lighting system
A pool safety lighting system is designed for use in diving swimming pools, in particular, which have a shallow portion connected to a deep portion by an intermediate sloping wall. To reduce the...
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6429606 |
Electronic gas-lighting device
An electronic gas-lighting device having a casing defined by a cup-shaped body made of electrically insulating material is disclosed. An electronic high-voltage-pulse generator is housed in an...
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6388392 |
System for providing auxiliary power to lighting unit for heavy equipment having a direct current power supply and no uninterruptible power supply
An apparatus for providing auxiliary power to a lighting system for heavy equipment during interruptions of power from a 250 volt direct current (DC) power supply is provided. The DC power supply...
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6377107 |
Fast turn-off circuit arrangement
A circuit arrangement having at least one electric main switch (T 1 ) with a reference electrode (E), a control electrode (B), and a work electrode (C). A recovery diode (D 1; D 2 ) is connected...
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6366033 |
Molecular lanthanide complexes for phosphor applications
A light source is provided which contains a light emitting component and at least one phosphor material. The phosphor material absorbs radiation emitted by the light emitting component and converts...
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6348763 |
Fluorescent lamp luminaire system
The invention comprises a fluorescent lamp system wherein an ultraviolet producing discharge tube contains no phosphor internal to the tube. Rather an insert or sleeve physically distinct from the...
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6320331 |
Light source apparatus using electric lamp as light source
A light source apparatus is used in a video endoscope system having a charge coupled device (CCD) image sensor and a monitor. The light source apparatus provides illumination to a scene to be...
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6310439 |
Distributed parallel semiconductor device spaced for improved thermal distribution and having reduced power dissipation
A single triac on a heat sink is replaced by a plurality of lower rated current, parallel connected triacs for carrying the same total current as the single triac. The plural devices are spaced...
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6265828 |
Hand lamp
A cable lamp which is powered by a low-voltage battery and which comprises a cable (10). Fitted on one end of the cable (10) is fitting (14) for a fluorescent bulb (21), while the other end of the...
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6255787 |
Automated lighting control system utilizing laser and non-laser light sources
An energy emission system is provided having both multiple laser outputs and multiple light or lamp outputs. The laser outputs may be aligned so that once they are active, they are directed to...
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6246188 |
Dimmer apparatus
A dimmer apparatus for adjusting the brightness of a display section for displaying time and the like. In the dimmer apparatus, a control section including a microcomputer and the like operates to...
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6218790 |
Connection assembly with selective establishment of intensity of light-emitting diode
In order to code its light intensity class, a light-emitting diode (1) has a number of contact elements (3-8) which are connected to series resistors (13-16) situated outside a physical unit...
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6169368 |
Visual information systems
A visual information system includes an array of light emitting elements located at the side of a train track. The elements are individually energizable by a controller in response to a...
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6124673 |
Universal arc-discharge lamp systems
Provided herein is a system which permits refitting of lamp sockets which utilize incandescent lamps with fluorescent lamps. The present system provides for a ballast which is remote from the lamp...
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6087784 |
Glow discharge lamp
The present invention relates to a glass envelope for an illuminating device, the glass envelope comprising a gas channel, a pair of electrodes in communication with the gas channel and a...
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6069456 |
Mercury-free metal halide lamp
Lighting system, comprising a mercury-free metal halide lamp with a light yield of at least 75 lm/W and a color rendition index of at least 75 and an electronic ballast, the electronic ballast...
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6002216 |
Pool lighting system, illuminator, and method therefore
In a pool lighting system, each illuminator (10) comprises a color wheel 26, a driver mechanism (24) for rotating the color wheel, and a synchronization circuit (42). The synchronization circuit is...
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5939841 |
Method and apparatus using a floating electrode to extract energy from an electric field
The device disclosed herein relates to an apparatus for obtaining energy from an electric field. The apparatus has a floating electrode connected to a series gap device. The floating electrode is...
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5929568 |
Incandescent bulb luminance matching LED circuit
An incandescent bulb luminance matching LED circuit for causing the luminance of an LED to match the luminance of an incandescent bulb is disclosed. The incandescent bulb luminance matching LED...
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5923125 |
Vehicular discharge lamp lighting circuit device for controlling a plurality of head lamp functions
A lighting circuit device of a discharge lamp for an automobile, has: a first circuit device for controlling lighting of the discharge lamp, the first circuit device including a microcomputer and...
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5923130 |
Repetitive and constant energy impulse current generator
This invention relates to an impulse generator which utilizes the properties of floating electrodes. An exemplary impulse generator comprises a floating electrode with a corona source, a series...
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5910712 |
Method and apparatus for reduced discharge lamp driver test time
A discharge lamp driver is configured so that it can be operationally tested using a substitute impedance instead of a discharge lamp. The time required to functionally test the driver circuit with...
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5598068 |
Light emitting apparatus comprising multiple groups of LEDs each containing multiple LEDs
A plurality of LEDs are divided into multiple groups with the LEDs in each group being connected in series and being driven by a single current source. A region to be illuminated is divided into...
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5426347 |
Lighting system with emergency standby feature
A power supply is plugged into an ordinary household electrical outlet and conditionally provides a high frequency current at a power receptacle operative to receive the power plug of an ordinary...
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5352957 |
Appliance control system with programmable receivers
A control system for a plurality of appliances in distributed arrangement, in particular lighting fittings, having a command generator (1), a receiver (10) associated with each appliance (40), a...
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5315211 |
Insulator for fluorescent lamp
An insulator is applied to the ends of a fluorescent lamp which operates in a cold environment. The insulator retains the heat generated by the fluorescent lamp in order to reduce the energy which...
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4924152 |
Thermoplastic ballast housing in a novel three-dimensional printed circuit board
The present invention relates to an improved three-dimensional printed circuit board and a plastic housing for power conditioning electronics such as fluorescent lamp ballasts. The novel printed...
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4912371 |
Power saving fluorescent lamp substitute
An improved non-lighting fluorescent lamp substitute to replace one lamp in a two-lamp series connected circuit so that the circuit is completed through the remaining lamp allowing it to light,...
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4841200 |
Circuit for driving a multiple-element display
A circuit for driving a display device having n display elements, where n is a positive integer greater than one, comprises a device for poviding a repetitive digital signal having a predetermined...
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