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142results about How to "Accurate lighting" patented technology
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Distributed dimmable lighting control system and method
ActiveUS7019276B2Accurate lightingLow costMaterial analysis by optical meansPhotoelectric discharge tubesOperating energyEffect light
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 comprises obtaining an ambient light intensity level for the building area; comparing the ambient level to the predetermined level of light intensity; if the ambient level differs from the predetermined level, calculating an artificial lighting input to be generated in the building area to attain the predetermined level. It can further comprise generating the artificial lighting input in the building area and carrying out the steps of obtaining, comparing and calculating a second time to determine a quality of the calculating and modify the generating.
Owner:UTC CANADA CORP MICRO THERMO TECH DIV
Illumination control system
ActiveUS20140285113A1Prevent alarms from going off and interruptingSave energyElectrical apparatusElectroluminescent light sourcesLatitudeWireless data transmission
An illumination control system provides wireless data transmission with a lamp through a mobile communication device. The lamp has a built-in wireless communication module and a microcontroller. The microcontroller stores a location of the lamp with latitude-longitude values and height values. Accordingly, a user may use the mobile communication device to read the latitude-longitude values and height values of the lamps to achieve an indoor positioning function by calculating a positioning information of the user through indoor positioning algorithms, and thereby enable illumination control through the mobile communication device according to the positioning information.
Owner:INT MOBILE IOT
Light emitting device and method for fabricating light emitting device
ActiveUS20050012454A1Precise patternAvoid problemsDischarge tube luminescnet screensElectroluminescent light sourcesAuxiliary electrodeBrightness gradient
It is an object of the present invention to provide a method for fabricating a light emitting device, in which brightness gradient due to potential drop of a counter electrode can be prevented from being observed and an auxiliary electrode can be formed without increasing the number of steps, even when the precision of a light emitting device is improved. It is another object of the invention to provide a light emitting device fabricated according to the method. The light emitting device has a light emitting element and an auxiliary electrode in each pixel. The light emitting element includes a first electrode, a second electrode, an electroluminescent layer provided between the first and the second electrodes. Further, the first electrode is overlapped with the electroluminescent layer and the second electrode formed over an insulating film by means of a first opening formed in the insulating film. Still further, the auxiliary electrode is overlapped with the second electrode by means of a second opening formed over the second insulating film.
Owner:SEMICON ENERGY LAB CO LTD
Dot position correcting apparatus, optical scanning apparatus, imaging apparatus, and color imaging apparatus
InactiveUS20060285186A1Without costAccurate lightingPrintingPictoral communicationOptoelectronicsOptical scanning
An optical scanning apparatus is disclosed that includes a light source unit having plural main light sources that are two-dimensionally arranged in the main scanning direction and the sub scanning direction, and plural sub light sources that are arranged between rows of the main light sources aligned in the main scanning direction. The optical scanning apparatus also includes an optical system configured to scan light emitted from the light source unit on a scanning object to form an image on the scanning object, and a control apparatus configured to adjust a main scanning direction image position by controlling two of the main light sources that are juxtaposed to each other with respect to the main scanning direction and adjust a sub scanning direction image position by controlling a main light source and a sub light source that are adjacent to each other.
Owner:RICOH KK
LED driver circuit with over-current protection during a short circuit condition
InactiveUS20100156324A1Avoid damageAvoid further damageElectrical apparatusElectroluminescent light sourcesDriver circuitCurrent limiting
An LED driver circuit is provided for protecting one (or more) LEDs connected in series from over-current damages which may result from a short circuit condition. The driver circuit includes a current control circuit for receiving an input signal from a power source and providing a current output for powering the LED. A voltage sensor detects a voltage across the LED. An LED current restriction circuit such as a switching element restricts a current flow into the LED. A short circuit response circuit controls the LED current restriction circuit dependent on a comparison between the voltage detected by the voltage sensor and a predetermined threshold value. When the detected voltage is less than or equal to the threshold value, the response circuit determines a short circuit, and a signal is sent to the current restriction circuit to restrict current flow into the one or more LEDs.
Owner:PANASONIC CORP
Light emitting device and method for fabricating light emitting device
ActiveUS7221095B2Increasing number of stepAccurate lightingDischarge tube luminescnet screensElectroluminescent light sourcesAuxiliary electrodeBrightness gradient
It is an object of the present invention to provide a method for fabricating a light emitting device, in which brightness gradient due to potential drop of a counter electrode can be prevented from being observed and an auxiliary electrode can be formed without increasing the number of steps, even when the precision of a light emitting device is improved. It is another object of the invention to provide a light emitting device fabricated according to the method. The light emitting device has a light emitting element and an auxiliary electrode in each pixel. The light emitting element includes a first electrode, a second electrode, an electroluminescent layer provided between the first and the second electrodes. Further, the first electrode is overlapped with the electroluminescent layer and the second electrode formed over an insulating film by means of a first opening formed in the insulating film. Still further, the auxiliary electrode is overlapped with the second electrode by means of a second opening formed over the second insulating film.
Owner:SEMICON ENERGY LAB CO LTD
Video conferencing lighting system
ActiveUS7893953B2Easy to detectAccurate lightingTelevision conference systemsOperating tablesEngineeringVideo recording
A system for lighting at least one individual positioned about a piece of furniture during a video recording process includes a piece of furniture having a work surface and at least one non-work surface. A lighting source is arranged along either the work surface or the non-work surface of the piece of furniture to project non-visible light away from the piece of furniture toward an individual positioned proximate to the piece of furniture to light the individual or recording during a video recording process.
Owner:STEELCASE INC
Ring illuminator
InactiveUS6857762B2Improve accuracyLow costPoint-like light sourceOperating tablesDirect illuminationOptical axis
A plurality of light emitting elements comprise a number of groups having light emitting colors different from each other. The light emitting element groups are arranged in ring shapes about an optical axis of an optical system in a plane or planes substantially orthogonal to the optical axis. A combining unit combines radiation light beams of different light emitting colors to generate illumination light having a given hue. The combining unit is provided downstream of the light emitting elements along a light emitting direction. A focusing unit focuses the illumination light in the direction toward the optical axis and is provided downstream of the combining unit. Accordingly, it is possible to direct illumination light having uniform and non-irregular hue, the hue corresponding to a surface color of an object to be measured, to the object to be measured.
Owner:MITUTOYO CORP
System and Method for Managing Information Handling System Display Illumination
InactiveUS20090109129A1Reduce system costAccurate ambient lightCathode-ray tube indicatorsDigital output to display deviceDisplay deviceHandling system
A webcam integrated in a portable information handling system captures ambient light for analysis and application in automatically adjusting settings of a display integrated in the information handling system. As an example, a histogram of the webcam is analyzed to determine ambient light intensity and color temperature, which is then applied to adjust the brightness, contrast and color settings of the display.
Owner:DELL PROD LP
Endoscope apparatus
InactiveUS20110118547A1Positively performAccurately laser lightSurgeryEndoscopesLaser lightIrradiation
An endoscope apparatus includes first and second light sources, an endoscope leading end portion, an irradiation window, an observation window, a light irradiation unit and an emission angle changing unit. The first light source outputs laser light for diagnosis. The second light source outputs laser light for therapy. The laser light for therapy is different in spectrum from the laser for diagnosis. The irradiation window and the observation window are provided in the endoscope leading end portion. The light irradiation unit emits the laser light for diagnosis and the laser light for therapy to the object through the irradiation window. The emission angle changing unit changes an emission angle at which the laser light for therapy is emitted through the irradiation window to be smaller than an emission angle at which the laser light for diagnosis is emitted. The object to be examined is observed through the observation window.
Owner:FUJIFILM CORP
Wall switch for lighting load management system for lighting systems having multiple power circuits
InactiveUS20090058193A1Minimize disruptionReduce power consumptionBoards/switchyards circuit arrangementsProtective switchesLighting systemPower circuits
A wall switch is provided for an automatic lighting control system for a space equipped with multiple lamps for illuminating the space and multiple power circuits for supplying power to different groups of said lamps. The wall switch includes at least one sensor detecting conditions or events that indicate that increased illumination of the space by the lamps is needed or decreased illumination of the space by the lamps is allowable. Normal control of the electric lighting is thus automatic to a large degree. But, at least two manually operable switches are coupled to the microcontroller to provide the microcontroller with ON and OFF command signals for at least two of the lamp groups powered by different power circuits. A separate status indicator light for each of the switches is controlled by the wall switch and provides an indication of whether the lamp group associated with each manual switch is currently ON or OFF as a safety and economy feature.
Owner:SQUARE D CO
Transmission Electron Microscope Sample Holder with Optical Features
InactiveUS20100102248A1Accurate directionAccurate lightingElectric discharge tubesMachines/enginesLight beamBeam direction
A sample holder for holding a sample to be observed for research purposes, particularly in a transmission electron microscope (TEM), generally includes an external alignment part for directing a light beam in a predetermined beam direction, a sample holder body in optical communication with the external alignment part and a sample support member disposed at a distal end of the sample holder body opposite the external alignment part for holding a sample to be analyzed. The sample holder body defines an internal conduit for the light beam and the sample support member includes a light beam positioner for directing the light beam between the sample holder body and the sample held by the sample support member.
Owner:BROOKHAVEN SCI ASSOCS
Sample Holder with Optical Features for Holding a Sample in an Analytical Device for Research Purposes
InactiveUS20120293791A1Accurately light beamAccurate lightingMaterial analysis using wave/particle radiationElectric discharge tubesLight beamSpectroscopy
A method for performing time resolved imaging, spectroscopy or diffraction techniques involving a sample held in an analytical device. The method generally includes supporting a sample within an analytical device with a sample holder, conveying a light beam through an internal conduit of a sample holder body of the sample holder and directing the light beam between the sample holder body and the sample with a first light beam positioner of a sample support member of the sample holder, such that the light beam and an energy pulse emitted by an energy source of the analytical device converge on the sample supported by the sample holder within the analytical device.
Owner:BROOKHAVEN SCI ASSOCS
Cooperative adaptive lighting system using vehicle to target or object communication
ActiveUS9731645B1Accurate distance measurementAccurate measurementVehicle headlampsElectrical apparatusMobile vehicleEngineering
A cooperative adaptive lighting system for motor vehicles in which a vehicle transmits its geographic coordinates and receives similar coordinates from other vehicles, pedestrians, and stationary warning devices. Using the coordinates, the vehicle computes distances, and relative position more specifically, to those entities. When the distances become sufficiently small, indicating that the entities fall within headlight range, the vehicle alters its headlight beams to either (1) throw more light on an entity, (2) reduce light reaching the entity as appropriate, or (3) change a lighting pattern as appropriate.
Owner:VALEO NORTH AMERICA
Adjustment tool
InactiveUS7219581B2Reliably held upon desired target nutEasy to placeSleeve/socket jointsSpannersBubble ringCollet
An adjustment tool, having a body with a bore extending between a first end and a second end. A shaft is positioned within the bore having a plurality of outward spreading spring fingers coupled to a tool end. A spring biases the shaft towards the second end of the body. A collet coupled to a first end of the body has an inner surface which restricts the spring fingers to a closed position as movement of the shaft towards the second end of the body retracts the spring fingers into the collet. A bubble ring may be coupled to the body. Graduated indicia associated with the bubble ring indicates rotation of the tool for entry of precise rotational adjustments.
Owner:ASC SIGNAL CORP
Light source device and liquid crystal display unit
InactiveUS20100097412A1High light emission luminanceImprove precisionElectroluminescent light sourcesSolid-state devicesVIT signalsLiquid-crystal display
A light source device, performing partial lighting operation and having a function of detection of illuminated light with improved precision is provided. The light source device including: a light source section having a plurality of partial lighting sections each controlled separately; a drive means for time-divisionally driving the light source section with a pulse signal so that a whole lighting time period and a partial lighting time period are mixed along time base; a photoreception device receiving light from the light source section; and a sampling means for sampling, at a timing in the partial lighting time period, a photoreception signal from the photoreception device. The drive means controls a width of the pulse signal immediately before a transition from the whole lighting time period to the partial lighting time period so that the width is equal to or less than a given threshold value.
Owner:SONY CORP
LED driver circuit with over-current protection during a short circuit condition
InactiveUS8274237B2Avoid further damageSimple configurationElectrical apparatusElectroluminescent light sourcesDriver circuitCurrent limiting
An LED driver circuit is provided for protecting one (or more) LEDs connected in series from over-current damages which may result from a short circuit condition. The driver circuit includes a current control circuit for receiving an input signal from a power source and providing a current output for powering the LED. A voltage sensor detects a voltage across the LED. An LED current restriction circuit such as a switching element restricts a current flow into the LED. A short circuit response circuit controls the LED current restriction circuit dependent on a comparison between the voltage detected by the voltage sensor and a predetermined threshold value. When the detected voltage is less than or equal to the threshold value, the response circuit determines a short circuit, and a signal is sent to the current restriction circuit to restrict current flow into the one or more LEDs.
Owner:PANASONIC CORP
Image display method and apparatus
ActiveUS20130044126A1Accurate identificationAccurate informationImage enhancementImage analysisSuperimpositionImaging data
A visible image based on light output from a region to be observed by illumination of the region to be observed with visible light, and a special image based on light output from the region to be observed by illumination of the region to be observed with special light in a wavelength band that is different from the wavelength band of the visible light are obtained. An extraction image is generated by extracting a part of image data representing the visible image. A superimposition image is generated by superimposing the generated extraction image on the special image. The generated superimposition image is displayed.
Owner:FUJIFILM CORP
Light emitting diode floodlight
InactiveUS20120155077A1Accurately transmit lightIncrease light intensityNon-electric lightingLighting support devicesLight sourceDeuteron radiation
A light emitting diode floodlight includes a hollow housing, a lens, a cover, a light source, an illumination reflector, an intermediate portion, and a power source. The cover is coupled to the end of the housing and configured to hold and support the lens. The light source has a pyramidal frustum-shaped portion installed at an opposite end of the housing. The illumination reflector is installed within the housing so as to surround a periphery of the pyramidal frustum-shaped portion of the light source. The intermediate portion is connected to a first heat sink of the light source and has a second heat sink on an outer peripheral surface thereof. The power source has a power supply electrically connected to the light source.
Owner:YUYANG D&U CO LTD
Image processing apparatus, method, and computer program
InactiveUS20060132870A1High precisionAccurate lightingColor signal processing circuitsImaging processingIlluminance
An image processing apparatus comprises a light source presumption unit adapted to presume a light source on the basis of a plurality of feature information including illuminance information of first image signals obtained by image capturing, information of signals belonging to a hue region of a predetermined color among the first image signals, and information of a color temperature associated with second image signals obtained by image capturing before the first image signals; and a white balance control unit adapted to perform white balance control in accordance with light source information presumed by the light source presumption unit.
Owner:CANON KK
Video Conferencing Lighting System
ActiveUS20070291466A1Overcomes drawbackEasy to detectTelevision conference systemsOperating tablesEngineeringLighting system
A system for lighting at least one individual positioned about a piece of furniture during a video recording process includes a piece of furniture having a work surface and at least one non-work surface. A lighting source is arranged along either the work surface or the non-work surface of the piece of furniture to project non-visible light away from the piece of furniture toward an individual positioned proximate to the piece of furniture to light the individual or recording during a video recording process.
Owner:STEELCASE INC
Variable brake light control system using user terminal, and method for controlling the same
InactiveUS20140375448A1Accurate lightingNew feelingSubstation equipmentOptical signallingBrake lightEngineering
The present invention relates to a variable brake light in which a lighting unit can be illuminated in a variety of shapes according to a vehicle operating state or the selection of a driver. The variable brake light comprises: a lighting unit consisting of LED lamps in which a plurality of LEDs are arranged in a brake light according to a specific pattern so as to display designs having various shapes or patterns; a user terminal in which an application program is installed, comprising pattern input means for inputting a brake light pattern using the installed application program, and which transmits the input pattern information to the brake light through wireless communication means; and a brake light control device for receiving the pattern information from the user terminal through the wireless communication means, generating a control signal for controlling flashing of each LED lamp of the lighting unit according to the received pattern information, and transmitting the control signal to the lighting unit.
Owner:LEE IN OK
Photo-receiver arrangement
InactiveUS6906325B2Large dynamic rangeAccurate lightingMaterial analysis by optical meansClose-range type systemsAudio power amplifierComputational physics
A photo-receiver arrangement includes a photo-sensor that captures light being incident thereon within a predetermined range of light intensity values. The photo-sensor also converts the captured incident light into a first electrical signal. A pre-scaler is connected to an output of the photo-sensor for producing a second scaled electrical signal based on and corresponding to said first electrical signal input into the pre-scaler; and a preamplifier is connected to an output of the pre-scaler for amplifying said second scaled electrical signal input into the preamplifier. The preamplifier has a dynamic range of at least substantially linear gain. The pre-scaler and the preamplifier are designed in a mutually matching configuration such that the second scaled electrical signal falls within the said dynamic range of the preamplifier for any light intensity value falling into said predetermined range of light intensity values.
Owner:LITE ON TECH CORP
Illuminating device, electro-optical device, and electronic apparatus
ActiveUS20070242718A1Improve accuracyAccurately illumination lightPhotometry using reference valueLaser detailsPhotovoltaic detectorsLight guide
An illuminating device includes a plurality of light sources, a light guide plate that has plate surfaces on front and rear sides and a plurality of end faces formed around the plate surfaces, receives light emitted from the plurality of light sources through a light incident surface, which is at least one end face among the plurality of end faces, and emits the light through a light-emitting surface, which is one of the plate surfaces, a plurality of photodetectors that are disposed to face the end faces or the plate surfaces of the light guide plate, and a light source control unit that controls light emission of the plurality of light sources on the basis of the output of the plurality of photodetectors. The plurality of photodetectors include at least two photodetectors including light receiving surfaces that face the end faces or the plate surfaces in different directions from each other.
Owner:JAPAN DISPLAY WEST
LED locating lamp, intelligent lighting system based on LED locating lamps and control method
ActiveCN104470152AImprove control immunityImprove intelligenceElectric light circuit arrangementEnergy saving control techniquesIntelligent lightingGeolocation
The invention discloses an LED locating lamp. The LED locating lamp is controlled to be turned on and off according to RSSI values of wireless signals transmitted by a wireless signal receiving and transmitting terminal. The invention further discloses an intelligent lighting system based on the LED locating lamps. The intelligent lighting system comprises a gateway, an upper computer, the wireless signal receiving and transmitting terminal and the three or more LED locating lamps. The LED locating lamps calculate the RSSI values of the received wireless signals and transmit the RSSI values and geographic positions to the wireless signal receiving and transmitting terminal. The wireless signal receiving and transmitting terminal calculates the position of the wireless signal receiving and transmitting terminal through the RSSI values and transmits the position to the upper computer. The upper computer calculates a motion track of the wireless signal receiving and transmitting terminal and controls the LED locating lamps on the track to be turned on according to the motion track. The invention further discloses a control method of the intelligent lighting system based on the LED locating lamps.
Owner:SHENZHEN MASON TECH
Image display device
ActiveUS20140192077A1Avoid normal displayAccurate lightingDigital data processing detailsCathode-ray tube indicatorsFrequency spectrumDisplay device
An image display device includes a display section adapted to display an image, a photometric section including a variable wavelength interference filter adapted to transmit light with a predetermined wavelength from incident light and a photosensor adapted to detect light obtained by dispersion, and disposed so as to be opposed to the display section, and a control section adapted to control the display section and the photometric section, and the control section obtains a spectrum of the incident light based on light intensity of the light detected by the photosensor, and then performs a color correction of the display section based on the spectrum.
Owner:SEIKO EPSON CORP
LED directional illumination energy-saving luminaire and manufacturing method thereof
InactiveUS20100302780A1Accurate directional illuminationImprove lighting effectsPlanar light sourcesMechanical apparatusLuminous intensityEffect light
The present invention relates to a LED directional illumination energy-saving luminaire and a manufacturing method thereof. The luminaire comprises: a plane circuit board with an X direction and a Y direction defined; and illumination units including a first illumination unit, which is arranged at the center of the circuit board, and two second illumination units arranged at the both sides of the first illumination unit symmetrically. Each illumination unit includes a plurality of LEDs mounted to said circuit board in a tilted state with said LED bodies being positioned at a predetermined height from the plane circuit board, and said plurality of LEDs are arranged at intervals in an array along said X direction and said Y direction and are symmetrically distributed with respect to the center of said array. Each LED deviates from the X direction and the Y direction at a predeterminative angle, so that the illumination units can form predeterminative project angles in the X direction and the Y direction respectively. The projection angle of the LED is less than 15 degrees, and the luminous intensity thereof is higher than 20000 mcd. The luminaire is capable of achieving an accurate directional illumination, has a well lighting effect and energy-saving effect, and has a well performance of heat dissipation, thus is especially suitable for the street lighting.
Owner:LIU ZHIYONG
Smart band capable of turning on screen in case of hand raising
ActiveCN106037179AAccurately judge true thoughtsAccurate lightingInput/output for user-computer interactionBraceletsComputer moduleSmart card
Owner:盐城韩资工业园产业发展有限公司
Fiber optic rotary joint
InactiveUS20040086222A1Accurate transmissionRapid rise and fall of signal strengthCoupling light guidesFiberSignal on
This invention eliminates the lens / prism assemblies and the multiple pickup fibers that must be multiply lensed to a detector to get sufficient signal strength for the system to work. This invention also compensates for some of the rapid rise and fall time of the present system. A single pick-up, either a fiber or a photodiode, is placed at the end of a waveguide. A lens or lens system is used to focus a single optical signal on to the fiber face or the photodiode active area. Various light injection techniques, such as fibers, fiber / lens assemblies, lensed VCEL, lasers, or LEDs can be utilized because of the location in the system.
Owner:MOOG INC
Light Beam Scanner
InactiveUS20080170284A1Improve productivityIncrease the number ofPrintingOptical elementsOptical axisLight beam
A light beam scanner (1a) comprises a light source device (10) for emitting a laser light of 880 nm and a light deflection mechanism (200) by which a light beam emitted from the light source device (10) is scanned with a light deflector over a predetermined range of angles; the light deflection mechanism (200) has a polygonal mirror (210) as the light deflector. The light source device (10) has a light-emitting source (20) composed of a laser diode and a lens (30) for guiding a light beam emitted from the light emitting device (20) as a converging light that focuses on or in the vicinity of a reflective surface (211) of the polygonal mirror (210) in at least one of the directions, the first direction or the second direction, which are perpendicular to the optical axis direction.
Owner:SANKYO SEIKI MFG CO LTD
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