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7605548 |
Electricity controller, device for lighting discharge tube, display device and electric power control method
An electricity controller is provided which comprises a first power control means for controlling output power from power generator 4 to a first level during a first period of start-up time for...
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7545101 |
Multi-zone closed loop daylight harvesting having at least one light sensor
A multi-zone daylight harvesting method and apparatus having a closed loop system utilizing a single light sensor is disclosed herein. This light control system includes an ambient light sensor...
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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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7517132 |
Light-emitting and light-receiving backlight unit, and information device using the light-emitting and light-receiving backlight unit
A multifunctional-type backlight unit, including a light guiding plate having a first incident/exit surface and a second incident/exit surface which are capable of receiving and emitting light, a...
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7446480 |
Apparatus and method for switching a light source
An apparatus and its corresponding method for switching a light source are provided. The apparatus includes a light sensor, a decision device and a light source. The light sensor senses the ambient...
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7429828 |
Method and system for luminance characterization
A system for luminance characterization of a luminaire includes a ballast coil and a multi-tap capacitor connected in series with the ballast coil. The multi-tap capacitor has a plurality of tap...
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7417378 |
Apparatus for controlling lighting lamp with security function and lighting control method using the same
An apparatus for controlling a lamp with a security function and a lighting control method are disclosed. The apparatus includes a security switch for selecting a security mode, a light emitting...
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7405524 |
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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7397202 |
Brightness control circuit and backlight control module
A brightness control circuit is used to control brightness of a light emitting module. A light sensor module generates a first current through itself according to a light intensity. A charging...
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7377658 |
System and method for automated projector lamp management
An information handling system projector tracks lamp usage to generate a lamp order form for order of a replacement lamp when lamp usage is a predetermined usage. The lamp order form is...
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7355349 |
Apparatus and methods for providing emergency safety lighting
The present invention transforms existing electrical wall outlets into an emergency lighting system for homes, hospitals, hotels, nursing homes and businesses. The lighting device, designed as a...
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7339471 |
Nighttime-controlled lighting system
A time-controlled security lighting system records the length of nighttime and is capable of automatically adjusting for seasonal nighttime hours. The time duration between the initial nighttime...
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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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7324076 |
Methods and apparatus for setting the color point of an LED light source
In one embodiment, a user-selected color point is received. RGB tristimulus values are then derived for the color point. It is also determined whether the user-selected color point is outside a...
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7290903 |
Projection display
A projection display includes a housing, a display panel, a power plug for electrically connecting to an external power source and receiving power provided by the external power source, a light...
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7268682 |
Room monitoring and lighting system
A system for improving the safety of a room occupied by a patient includes a sensor for monitoring when the patient is out of bed. The sensor sends a signal that gives an alert to a care giver that...
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7242313 |
System for providing pathway indications through unlit areas
An auxiliary lighting system contains at least one photoelectric cell to convert ambient light into energy and at least one light emitting diode. The photoelectric cell converts ambient light into...
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7211960 |
Burglar-proof wireless light adjusting module
A burglar-proof wireless light adjusting module is provided wherein a transmission socket of a control module is connected with a lamp and a local power, respectively, whereas a control socket at...
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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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7106010 |
Backlight module for reducing interference
A backlight module for reducing interference includes: a plurality of radiating units, a plurality of transferring units, and a phase control unit. Each transferring unit is connected to a...
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7091675 |
Driving apparatus for cold cathode fluorescent lamps
A driving apparatus ( 2 ) for cold cathode fluorescent lamps (CCFLs) includes a primary and a secondary driving circuits ( 22, 21 ), a primary and a secondary light tubes ( 24, 23 ), a primary and...
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7081715 |
Method of providing break-in conditioning for a bi-level illumination system
High level and low level illuminating use of lamps in an office stairwell of the nature requiring a lamp break-in period of conditioning, wherein normally the former level is used during work hours...
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7081714 |
Incandescent light bulb life extending apparatus
An incandescent light bulb life extending apparatus operates by modifying or wave shaping the A.C. power that supplies power to a lamp or light fixture, using a phase control circuit that is fixed...
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7064492 |
Automatic ambient light compensation for display backlighting
Control circuitry is used to control the backlighting of electronic displays. A light sensor (such as a phototransistor) is used to continuously measure ambient light conditions that are associated...
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7045975 |
Apparatus and methods for providing emergency safety lighting
The present invention transforms existing electrical wall outlets into an emergency lighting system for homes, hospitals, hotels, nursing homes and businesses. The lighting device, designed as a...
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7019662 |
LED drive for generating constant light output
An LED light source drive includes an LED current generating circuit and an LED drive controller. The current generating circuit is operable to receive power from a power source and to generate a...
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7019276 |
Distributed dimmable lighting control system and method
To reduce energy costs in buildings where there is an input of natural light, a method of maintaining an ambient light intensity in a building area at a predetermined level is proposed. It...
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6969955 |
Method and apparatus for dimming control of electronic ballasts
An apparatus and method for providing dimming control of an electronic ballast circuit that includes a electronic ballast circuit that is electrically connected to a plurality of input voltage...
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6940230 |
Modular lamp controller
Methods, apparatus, and systems are provided concerning modular lamp controllers. In one embodiment, a modular lamp controller dims a high intensity discharge lamp based upon occupancy. The lamp...
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6929388 |
Auto headlamp module with integrated photocell
A switch assembly module for controlling operation of a vehicle lamp includes a photocell integrated within the module housing to allow a controller to automatically switch the lamp on or off...
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6927541 |
Multimode motion-activated lighting
A motion detector circuit arrangement having multiple modes of operation for energizing a light at a nominal full-brightness illumination level in response to motion. Background level circuitry...
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6828733 |
Remote lamp control apparatus
A remote lamp control system for controlling the off/on status and dimming of the illumination in a high infrared and EMI noise environment is disclosed. The transmitted control signal is an...
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6784821 |
Synchronizing circuits and methods for parallel path analog-to-digital converters
An Analog-to-Digital (A/D) converter includes signal paths that are responsive to an analog input signal, to generate a multi-bit digital signal. A respective signal path includes a comparator. A...
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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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6709126 |
LED nightlight
A nightlight having a base unit with a central cavity designed to house a light sensor and a printed circuit board. Mounted on the front surface of the base unit is a transversely aligned LED tube....
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6703786 |
System and method for in-line control of electric power
There is disclosed an in-line free-form sensor for controlling power flow to a utilization device. The in-line sensor is contained within a housing attached along a power cord and the housing...
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6686697 |
Circuit to protect a light element
A circuit protects a light element and prevents a breakdown of a laser diode (LD) when electric static discharge (ESD) occurs. The circuit protects the light element in a drive to control an...
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6670597 |
Illumination sensor with spectral sensitivity corresponding to human luminosity characteristic
A solar battery SB for detecting the surrounding brightness is provided and a switching element SW is controlled based on output voltage of the solar battery SB. The switching element SW is made up...
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6624585 |
Ultra-compact igniter circuit for arc discharge lamp
An igniter circuit for an arc discharge lamp comprises a DC to AC converter, a transformer, an AC to DC converter and high-voltage DC energy storage which is capable of discharging electrical...
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6621224 |
Light-controlling device used for vehicle
A light-controlling device of this invention includes a controlling circuit having a function for turning an incandescent lamp and an LED off simultaneously, which have different minimum voltages...
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6617795 |
Multichip LED package with in-package quantitative and spectral sensing capability and digital signal output
A multichip light-emitting-diode package having a support member, at least two light-emitting-diode chips disposed on the support member, at least one sensor disposed on the support member for...
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6593701 |
Decorative lamp
A decorative lamp has a casing with a pervious to light plate, a light source and a control circuit having a power unit, a light detecting unit and an electronic switch. The power unit has at lease...
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6586884 |
Method and device for managing the supply to a discharge lamp
The invention relates to a method for managing the supply to a discharge lamp of a motor vehicle headlight, wherein during the phase of starting up the discharge lamp, the strength of the current...
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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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6580221 |
Method for triggering a sensor-controlled lamp
A sensor-controlled lamp and a method for triggering it. The sensor signals are evaluated by means of a microprocessor, and on the basis of the change over time in the sensor signals, operating...
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6570342 |
Fluorescent lamp and power converter
A fluorescent lamp includes: an emission tube for generating a luminous flux; a first filament provided at one end of the emission tube; a second filament provided at another end of the emission...
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6552495 |
Adaptive control system and method with spatial uniform color metric for RGB LED based white light illumination
The present invention is directed to a control system for generating a desired light color by a plurality of Red, Green and Blue light emitting diodes (LEDs) comprised of a sensor responsive to a...
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RE38036 |
Electronic controller for scheduling device activation by sensing daylight
A device controller synchronizes a counter to the detection of sunrise or sunset by photoelectrically sensing daylight, thereby establishing an approximate time reference for scheduling the timing...
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6509658 |
Device for the automatic shut-off of equipment's stand-by power
The present invention relates to a device for the automatic shut-off of equipment's stand-by power which can switch on or off the power for a set of electric and electronic appliances and can...
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6489725 |
Power saving circuit
A power saving circuit is to save standby power of electronic devices. A capacitor ( 1 ) is connected to an AC power supply ( 6 ), and a phase-leading current component passing the capacitor is...
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