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Document Title |
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7633232 |
Electronic candle and method of use
A portable electronic light providing a light resembling a candle that can be turned off by blowing on the light or by generating other predetermined sounds. The electronic light comprises a sound...
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7626509 |
Solar light for home security signs
An easily deployable miniature, LED light unit specifically for home security yard signs that is rechargeable by means of a solar cell array having a light sensor which automatically activates the...
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7608807 |
Closed loop daylight harvesting light control system having auto-calibration
An apparatus and method for enabling an automatic calibration sequence for a light control system having a daylight harvesting scheme is disclosed herein. An ambient light sensor connects to a...
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7466302 |
Display apparatus and method of driving the same
A light generating part generates a first light based on a first control signal. A first driving part outputs a panel driving signal. A display panel receives the first light or a second light that...
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7432659 |
Back light unit and liquid crystal display device using the same
A back light unit and an LCD device using the same in which current which flows in a plurality of light emitting diodes (LEDs) is uniformly controlled having a small PCB is provided. The back light...
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7327090 |
Electronic module, methods of manufacturing and driving the same, and electronic instrument
An electronic module includes an EL section; a first substrate on which the EL section is formed; a second substrate attached to the first substrate; an integrated circuit chip mounted on the...
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7239309 |
Display drivers
Display driver circuitry for electro-optic displays, in particular active matrix displays using organic light emitting diodes. The circuitry includes a driver to drive an electro-optic display...
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7157856 |
Apparatus and method for controlling headlight in vehicle and headlight lamp having multifunction structure
The present invention relates to a headlight lamp ( 110 ) having a multifunction structure in which a lighting angle of a headlight of a vehicle is automatically and manually controlled based on a...
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7113541 |
Method for software driven generation of multiple simultaneous high speed pulse width modulated signals
Systems and methods can provide, in one aspect, a method for modulating the pulse width of control signals generated on a plurality of separate channels. In one practice, the methods described...
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6979953 |
Auto-operated dip switching mechanism
An auto-operated dip switching mechanism includes a strong-light detector, a strong-light signal circuit, and a switching control circuit. The strong-light detector is mounted to a front end of a...
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6841947 |
Systems and methods for controlling brightness of an avionics display
The present invention provides for systems and methods for dimming a LED matrix functioning as a backlight to an avionics display. A system according to an embodiment of the present invention...
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6583573 |
Photosensor and control system for dimming lighting fixtures to reduce power consumption
A lighting control system provides a desired illumination level at a task location while saving power. Controlled electric light is produced having an intensity responsive to a control signal. The...
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6353291 |
Electroluminescent lamp controller
Electronic sensing circuits monitor multiple sized EL cells, referred to as a lamp, and compensate for variations in contrast between cells, while maintaining a fixed contrast between the luminance...
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6344641 |
System and method for on-chip calibration of illumination sources for an integrated circuit display
An on-chip system and method for calibrating an illumination source includes a photo-detector and intensity sense and control circuitry resident on an integrated circuit. The integrated circuit is...
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6300721 |
Photocontrol arrangement with mechanically held contacts for controlling an outdoor lighting system
A photocontrol arrangement for operating an outdoor lighting system includes a stepper relay whose contacts are mechanically held together or apart, and which is electrically energized briefly only...
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6275163 |
Automatic switch dimmer device
An occupancy sensor and an automatic dimmer are connected in series with a light source. The detection of motion in the viewing area of the sensor starts the automatic dimmer which moves from its...
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6175196 |
Photo-sensitive illuminated skate wheel
The disclosed safety light (15) is designed to provide automatic operation for safety lights placed on rotating assemblies such as wheels, flying disks, and etc. Safety light (15) comprises a...
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6160352 |
Automated switching device with feedback resistance for lighting means
An automatic switching device for flourescent light has a light sensing element that reacts to ambient light and a switching unit designed to react to an output signal from the light sensing...
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6153985 |
LED driving circuitry with light intensity feedback to control output light intensity of an LED
An LED indicator system with at least one LED, and driving circuitry for driving the at least one LED. A power supply supplies a drive current to the at least one LED. A photodetector detects a...
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6114812 |
Remote control unit for incandescent lamp
A remote control unit for an incandescent lamp for remotely controlling the incandescent lamp by using a remote controller. The remote control unit includes a remote controller for transmitting a...
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6075324 |
Small portable apparatus with EL device producing reduced noise
The invention provides a portable apparatus which eliminates noise generated by vibrations of an EL device without adhering a vibration preventing sheet to the apparatus. Microprocessor 3 of the...
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6060838 |
Illumination device
An illumination device employs electroluminescent lamps which may be used alone or may cooperate with mask layers to define one or more rows of illuminated indicia which may be easily replaced to...
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6016035 |
Light assembly, preferably tail light assembly, of a vehicle, preferably a motor vehicle
A light assembly for a motor vehicle has at least one light source connected to a circuit, wherein the at least one light source has a light output that is adjustable according to external light...
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6005350 |
Electroluminescent driving apparatus with photodetector
An EL driving apparatus is composed of a display portion, a photodiode as changing means for changing a reference voltage for controlling an increased voltage based on ambient brightness and a...
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5998929 |
Control system for automotive vehicle headlamps and other vehicle equipment
A control system is provided for controlling the energization of the headlamps on a first automotive vehicle, the headlamps being electrically energizable and each having a high beam state and a...
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5977717 |
Logic lighting control system
A lighting control system comprises a photosensor (12), a comparative circuit (16) and a logic switching circuit (26). The photosensor (12) produces an output (VP) which is a function of the light...
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5892330 |
Manually controlable light feedback adjustment device for gas discharge lighting systems
A light sensor and light feedback adjustment device is provided for use with a control unit for selectively controlling the light output of at least one lamp of a ceiling-mounted luminaire to which...
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5828179 |
Device for preventing a lamp from igniting a cover such as a curtain
An anti-burn device which can prevent a floor lamp from burning material covering thereon is disclosed. The anti-burn device includes a photoresistor and a detecting control circuit. The...
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5814945 |
Lighting fixture control device
A lighting fixture control device has a base casing, an upper cover covering the base casing, an arc-shaped lens disposed on the base casing, an electric circuit board disposed on a bottom of the...
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5744913 |
Fluorescent lamp apparatus with integral dimming control
Dimmable fluorescent lamp apparatus includes a dimming control element housed in an integral adapter having a base which installs directly on an existing incandescent or other lighting fixture. The...
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5736816 |
Automatic on-off vehicle headlight system
A control system for automatically turning on and off at least some of the lights of a vehicle, such as an automobile. The control system includes a vacuum switch connected to a vacuum source on...
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5705808 |
Flash tube devices with a controllable electrical energy
A flash device has a flash tube which generates light in response to electrical energy. The amount of light emitted by the flash tube is monitored by a circuit which is connected to means for...
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5670846 |
Full power light control
A photoelectric control circuit that energizes a light bulb at a certain level of darkness and immediately records the total amount of light that results. A delay circuit prevents the new level of...
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5589741 |
System for creating naturalistic illumination cycles
A naturalistic illumination system for a user at a location having a light source for providing illumination of variable intensity above a non-zero value to the user location. A computer produces a...
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5548188 |
Apparatus and method for controlling illumination of lamp
An apparatus and a method for controlling an illumination of a lamp. The apparatus comprises an illumination detecting circuit for detecting an ambient illumination, a human body detecting circuit...
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5493183 |
Open loop brightness control for EL lamp
An EL lamp characterized by non-linear brightness decay is driven to constant brightness for the life of the lamp by an inverter controlled by a microprocessor. The microprocessor controls the...
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5459373 |
Mini-fluorescent lamp with automatic on/off
A circuit to reduce the amount of time for automatic turn-on of a fluorescent lamp as compared with a thermocouple by using a diode bridge, silicon controlled rectifier, a transistor, and a CdS...
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5455488 |
Miniature light-activated lamp control apparatus and the like
Miniature light-activated lamp control apparatus and the like, including a thin disk-shaped switching unit positionable within a light bulb socket and a thin light conductor having one end attached...
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5446343 |
Anti-flicker night light
A capacitive element is introduced in series with the gate of a switching element in an automatic turn on/off circuit which automatically provides artificial light depending on the ambient light...
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5440207 |
Reference light source device using laser
A reference light source device includes a first laser diode emitting a reference light, a harmonic generating unit for generating an nth harmonic of the reference light, where n is an integer, a...
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5422544 |
Lighting controller with compensation for eye adaptability characteristics
Light control apparatus and method in which commanded changes in luminance in a space are executed in accordance with a rate function generated by a function generator to correspond to adaptability...
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5418429 |
Humidity responsible motor vehicle running lamps control circuit
An automatic control circuit for predetermined running lamps of a motor vehicle having an engine and a voltage source supplying a predetermined voltage comprising a first device to monitor...
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5416385 |
Means for compact spatial optical integration
An apparatus and method of controlling the light intensity in a light source of variable emission affected by a drive signal. Spatial optical integration based upon light summation is incorporated...
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5406173 |
Apparatus and method for adjusting lights according to the level of ambient light
A device for controlling the level of light in an area or room. The device includes a sensor that detects whether the room is occupied, a light meter that detects the level of ambient light...
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5367223 |
Fluoresent lamp current level controller
A method and apparatus for automatically adjusting the light intensity output of a fluorescent lamp of a document scanner. The fluorescent lamp current level control apparatus comprises preheating...
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5349267 |
Lighting and/or indicating apparatus for use in foggy conditions
A lighting and indicating apparatus for a motor vehicle, for use in poor visibility. The unit includes a fog lamp and apparatus for automatically detecting the presence of poor visibility. The...
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5336978 |
Drive circuit for electroluminescent lamps
A drive circuit for an electroluminescent lamp and a novel lamp are disclosed. The drive circuit generates an alternating output voltage which is variable in magnitude and frequency and which may...
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5220250 |
Fluorescent lamp lighting arrangement for "smart" buildings
A fluorescent lamp lighting arrangement controlled by both a motion detector and a light sensing detector operable when said motion detector senses motion.
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5143437 |
Vehicle room illuminating apparatus
The brightness within a vehicle room is adjusted according to external brightness (i.e. illuminance or luminance) at night in such a way that the brightness is increased with increasing external...
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5089748 |
Photo-feedback drive system
A driver circuit for an electroluminescent lamp has a photo-diode for detecting the light intensity of the electroluminescent lamp and providing an output signal responsive to the intensity of the...
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