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2845 results about "Fluorescent light" patented technology
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Simply put, fluorescent lighting is a kind of lighting technology which depends on a chemical reaction inside of a glass tube to create light. This chemical reaction involves gases and mercury vapor interacting, which produces an invisible UV light.
Retrofit light emitting diode tube
An LED light tube for replacement for fluorescent light tubes includes an elongated cylindrical transparent envelope, a base cap at each end of the envelope, and at least one LED device in electrical communication with the base cap. The LED light tube is adapted for use in troffer light fixtures.
Owner:MULE LIGHTING
Organic devices, organic electroluminescent devices and organic solar cells
ActiveUS20060008740A1Reduce harmLower barrier heightElectric discharge tubesElectroluminescent light sourcesOrganic solar cellSimple Organic Compounds
An organic device, including an organic compound having charge-transporting ability (i.e., transporting holes and / or electrons) and / or including organic light emissive molecules capable of emitting at least one of fluorescent light or phosphorescent light, has a charge transfer complex-contained layer including a charge transfer complex formed upon contact of an organic hole-transporting compound and molybdenum trioxide via a manner of lamination or mixing thereof, so that the organic hole-transporting compound is in a state of radical cation (i.e., positively charged species) in the charge transfer complex-contained layer.
Owner:MITSUBISHI HEAVY IND LTD +1
LED lighting system
ActiveUS7307391B2Improve reliabilitySufficient heat dissipation capabilityLighting support devicesPoint-like light sourceOperating energyEffect light
Owner:LED SMART
LED lighting device
InactiveUS20110156584A1Prevent glareSpread widelyPlanar light sourcesPoint-like light sourceAir cycleUltrasound attenuation
The present invention relates to a lighting device using an LED. One embodiment of the invention provides a lamp-shaped LED lighting device that can replace a known lighting device. The lamp-shaped LED lighting device promptly emits the heat generated by an LED element, which influences the optical output and the lifespan of the LED lighting device, through a lamp-shaped frame with a heat-ventilation structure that facilitates air circulation. In addition, the lamp-shaped LED lighting device prevents glare from an LED light source by using a lateral reflecting member, a diffusion lens and a diffusion cover and diffuses the light from the light source widely without optical attenuation. Another embodiment of the invention provides a tube and panel-shaped LED lighting devices that can be replaced with a previous tube-shaped fluorescent light and a panel-shaped lighting device. The tube and panel-shaped LED lighting devices rapidly emit the heat generated by an LED element, which influences the optical output and the life span of the LED lighting device, through a tube and panel-shaped frame with a heat-sink structure. In addition, the tube and panel-shaped LED lighting devices prevent glare from the LED light source by optically arranging a curved reflecting plate, a diffusion plate and a diffusion window which include a diffusion lens at the upper portion of the LED element. Furthermore the tube and panel-shaped LED lighting devices diffuse the light from the LED light source widely without optical attenuation.
Owner:SOLARKOR
Methods and algorithms for cell enumeration in low-cost cytometer
InactiveUS20060024756A1Simple designReduce operating costsBioreactor/fermenter combinationsBiological substance pretreatmentsWhite blood cellCcd camera
The enumeration of cells in fluids by flow cytometry is widely used across many disciplines such as assessment of leukocyte subsets in different bodily fluids or of bacterial contamination in environmental samples, food products and bodily fluids. For many applications the cost, size and complexity of the instruments prevents wider use, for example, CD4 analysis in HIV monitoring in resource-poor countries. The novel device, methods and algorithms disclosed herein largely overcome these limitations. Briefly, all cells in a biological sample are fluorescently labeled, but only the target cells are also magnetically labeled. The labeled sample, in a chamber or cuvet, is placed between two wedge-shaped magnets to selectively move the magnetically labeled cells to the observation surface of the cuvet. An LED illuminates the cells and a CCD camera captures the images of the fluorescent light emitted by the target cells. Image analysis performed with a novel algorithm provides a count of the cells on the surface that can be related to the target cell concentration of the original sample. The compact cytometer system provides a rugged, affordable and easy-to-use technique, which can be used in remote locations.
Owner:UNIVERSITY OF TWENTE
Method of forming LED-based light and resulting LED-based light
ActiveUS7976196B2Raise the ratioIncrease surface areaPoint-like light sourceLighting support devicesConductive materialsEngineering
Owner:ILUMISYS
Lighting assembly with swivel end connectors
A lighting assembly has an elongated housing which contains a plurality of light emitting diodes that send light from one side of the housing. Connectors at the ends of the housing are provided to connect the lighting assembly into standard sockets of a fluorescent light fixture that has been modified to power the light emitting diodes. At least one of the connectors has a releasable holding mechanism that allows the housing to be rotated with respect to the sockets to aim the light is a desired direction and then hold the housing in that orientation.
Owner:BE AEROSPACE INCORPORATED
Lighting unit with heat-dissipating chimney
ActiveUS20110199769A1Avoid problemsLighting support devicesPoint-like light sourceLight equipmentEffect light
The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.
Owner:SATCO PRODS
Confocal self-interference microscopy from which side lobe has been removed
The present invention relates to confocal self-interference microscopy. The confocal self-interference microscopy further includes a first polarizer for polarizing reflected or fluorescent light from a specimen, a first birefringence wave plate for separating the light from the first polarizer into two beams along a polarizing direction, a second polarizer for polarizing the two beams from the first birefringence wave plate, a second birefringence wave plate for separating the two beams from the second polarizer into four beams along the polarizing direction, and a third polarizer for polarizing the four beams from the second birefringence wave plate, in the existing confocal microscopy. Optic-axes of the first and second birefringence wave plates exist on the same plane, optic-axes of the first and second birefringence wave plates are inclined from an optical axis of the entire optical system at a predetermined angle, and self-interference spatial periods of the first and second birefringence wave plates are different from each other.
Owner:KOREA ADVANCED INST OF SCI & TECH
Light source device and projector
ActiveUS20100328632A1Simple processEasy to manufacturePhotometryProjectorsOptoelectronicsFluorescent light
A light source device includes: a light emitting plate that has a plurality of segment regions including a transmissive portion that transmits light and a reflective portion on which a fluorescent substance layer; a light source that irradiates the fluorescent substance layer of the light emitting plate with the excitation light; a dichroic mirror that is disposed between the light source and the light emitting plate to transmit the excitation light and reflect fluorescent light from fluorescent substances of the fluorescent substance layer; and an optical device that condenses the excitation light transmitted by the transmissive portion of the light emitting plate and the fluorescent light reflected by the dichroic mirror on a single optical path to form a condensed light and radiate the condensed light toward the same direction.
Owner:CASIO COMPUTER CO LTD
Fluorescent light and motion detector with quick plug release and troubleshooting capabilities
InactiveUS6091200APromote repairEasy maintenanceEngagement/disengagement of coupling partsElongate light sourcesMotion detectorLED display
An energy saving fluorescent light fixture for small confined areas predominant in residential settings, having a motion detector with a quick plug connector capable of attaching and detaching the detector from the light fixture base. Additional trouble-shooting capabilities are provided by dedicated electronic circuitry and LED display indicators. The LED display indicators signal a nontechnical consumer when maintenance is required, and isolate the failures to the sub-system level, i.e., the detector or fixture base circuitry. The detector is attached through the quick plug connector and concurrently supported by either an elbow joint with rigid wire supporting segments, a flexible arm, or a ball-swivel joint with rigid wire supporting segment. The supporting means enables the user to control the sensor viewing area. A simplified trouble-shooting method enabling the user to use the LED display indicators and quick plug connector facilitates sub-system replacement by nontechnical operators.
Owner:LENZ MARK
Endoscope system for fluorescent observation
An endoscope system is disclosed for detecting fluorescent light emitted in the near-infrared region by a plurality of fluorescent labeling materials introduced into a living tissue. An illumination system generates illumination light in the wavelength range 600 nm-2000 nm which serves as excitation light for the plurality of fluorescent labeling materials, and a detection system that can separately detect different ones of the plurality of fluorescent light emissions that are emitted at different wavelengths from among the plurality of fluorescent labeling materials is provided. The endoscope system may include a conventional-type endoscope having an insertion section, or a capsule endoscope that wirelessly transmits image data. By superimposing the image data obtained using reflected light in the visible region and fluorescent light emitted by the fluorescent labeling materials, improved diagnostic capabilities are provided.
Owner:OLYMPUS CORP
Dual-mode stereo imaging system for tracking and control in surgical and interventional procedures
InactiveUS20130274596A1Change is minimalSurgical navigation systemsDiagnostics using spectroscopyDual modeFluorescent light
System and method for tracking and control in medical procedures. The system including a device that deploys fluorescent material on at least one of an organ under surgery and a surgical tool, a visual light source, a fluorescent light source corresponding to an excitation wavelength of the fluorescent material, an image acquisition and control element that controls the visual light source and the fluorescent light source, and captures and digitizes at least one of resulting visual images and fluorescent images, and an image-based tracking module that applies image processing to the visual and fluorescent images, the image processing detecting fluorescent markers on at least one of the organ and the surgical tool.
Owner:CHILDRENS NAT MEDICAL CENT
Retrofitting of fluorescent tubes with light-emitting diode (LED) modules for various signs and lighting applications
A method and device for replacing a fluorescent tube lamp with an LED lamp. The LED lamp includes an elongated electrical assembly having ends terminating in first and second electrical connectors, and a plurality of LEDs mounted to the elongated electrical assembly. Mounting adaptors connect with the first and second electrical connectors, and have protruding pins to connect with conventional lamp socket connectors. The mounting adaptors have rotating connectors for connecting with the first and second electrical connectors of the LED lamp, so that the LED lamp orientation can be rotated after the LED lamp is fully mounted to the lamp socket connectors.
Owner:LEOTEK ELECTRONICS
Apparatus for dental oct imaging
An apparatus (10) for obtaining an image of a tooth (20) includes an image sensor and a white light source (12) providing broadband polychromatic light and an ultraviolet light source providing narrow-band light. A combiner (15) directs broadband polychromatic light and narrow band light along a common illumination path to illuminate the tooth. A polarization beamsplitter (18) directs polarized light from the illumination path along an optical axis (216). An optical coherence tomography (OCT) imaging apparatus (70) splits the low coherence light into a sample path and a reference path and a dichroic element (78) directs the polarized illumination and the sample path low coherence light along the optical axis. An image processor (100) identifies a region of interest according to either a white light image (124), a fluorescent light image (120), or both and the OCT imaging apparatus obtains an OCT image over the region of interest.
Owner:CARESTREAM HEALTH INC
LED light bulb with active ingredient emission
InactiveUS7246919B2Effectively and efficiently deliverMore energyCoupling device connectionsLight source combinationsEngineeringFluorescent light
Owner:SC JOHNSON & SON INC
Quantum dot color filter and manufacturing method thereof and display device
InactiveCN103278876AImprove transmittanceImprove display qualityNanoopticsNon-linear opticsColor gelTransmittance
The invention relates to the technical field of displaying, in particular to a quantum dot color filter, a manufacturing method thereof and a display device. The quantum dot color filter comprises a plurality of pixels, a substrate and a filter layer, wherein each pixel comprises a plurality of color sub-pixels in different colors; at least one color sub-pixel is formed by a quantum dot material; the color of light generated by exciting the quantum dot material is the same as that of a corresponding color sub-pixel; and the filter layer is used for absorbing light rays of the non-excited quantum dot material. The color filter is formed since quantum dots can present physical features of fluorescent light of different colors under the irradiation of a backlight source, so that the transmittance of the color filter is increased, the brightness and colors of pictures are improved and enriched greatly, the display quality of images is improved, the user experience is enhanced, and meanwhile, the production cost is reduced to the maximum extent.
Owner:BOE TECH GRP CO LTD
Internal biochemical sensing device
InactiveUS7096053B2Easy to carryMaterial analysis by observing effect on chemical indicatorCatheterGratingChemical reaction
Owner:UNIV OF SOUTHERN CALIFORNIA
LED lighting system
ActiveUS20070183156A1Improve reliabilitySufficient heat dissipation capabilityPoint-like light sourceElongate light sourcesOperating energyEffect light
A light emitting diode lighting device and system that can be used for illuminating the interior and / or exterior of vehicles, aircraft, watercraft, signage or buildings is provided. It includes a voltage feedback constant current power supply circuitry and high power LEDs. The printed circuit assemblies are firmly mounted onto a continuous or semi-continuous mounting channel case that also works as a heat sink. By this means, it not only increases the reliability of the LED lighting tube but also it provides sufficient heat dissipation capability for the heat generated by the LEDs. Since the operating temperature of the LEDs is controlled and stays in cool condition, it dramatically increases the LED's lifetime and efficiency. The end caps of this LED lighting device are fully compatible with existing conventional fluorescent light fixtures and can directly replace those fluorescent lighting tubes in vehicles, mass-transit, watercrafts, aircrafts, signage or buildings with minimal modifications.
Owner:LED SMART
Antireflection material and polarizing film using the same
InactiveUS6777070B1Improve anti-reflection effectReduce image contrastSynthetic resin layered productsCoatingsRefractive indexDisplay device
An anti-reflection material and a polarization film which exhibit superior anti-reflection properties by preventing external light such as sunlight, fluorescent light, etc., from being reflected on a display, which yield a clear image without sparkling and reduces image contrast, and which exhibit superior wear resistance, chemical resistance, and contamination resistance, as well as exhibit optical stability. A hard coat layer is provided on one surface or two surfaces of a transparent substrate directly or via another layer, and an anti-reflection film having a lower refraction index than the hard coat layer is further provide on the hard coat layer. The hard coat layer consists of at least {circle around (1 a polymer polymerizing (metha)acrylate compound having a fluorene structure; {circle around (2 a polymer polymerizing urethane (metha)acrylate compound and ultrafine particles having a high refraction index; and {circle around (3 radiation and / or thermosetting resin and surface-treated titanium oxide ultrafine particles.
Owner:TOMOEGAWA PAPER CO LTD
Retrofit light emitting diode tube
Owner:MULE LIGHTING
Lighting unit having lighting strips with light emitting elements and a remote luminescent material
ActiveUS20110199005A1Avoid problemsElectrical apparatusPoint-like light sourceLight equipmentEngineering
The invention provides systems and methods for providing illumination. A lighting unit may have a support structure, and one or more light emitting elements supported by a circuit board contacting the support structure. A first optical element and a second optical element may be provided. A remote luminescent material may be provided on one or more optical elements. Light emitting elements configured to excite the luminescent material such as highly efficient light emitting diodes may be directed towards the luminescent material. The support structure may be a heat dissipating element, which may conduct heat from a heat source to a surface of the support structure. The heat dissipating element may have a passageway permitting the formation of a convection path to dissipate heat from the support structure. Such lighting units may be used to replace conventional fluorescent light tubes or other lighting devices, or may be provided as standalone lighting units.
Owner:SATCO PRODS
Lighting system with removable light modules
ActiveUS20090086478A1Increase heightConvenient lightingMechanical apparatusLighting support devicesOptical ModuleComputer module
A lighting system with removable light modules mounted on a frame by an attractive force between magnetic material of the light module and magnetic material of the frame such that a light module may be installed on, removed from, or relocated on the frame manually without tools or permanent electrical connection. The frame may be one-, two-, or three-dimensional, and it may provide an aesthetic appearance even when the lighting system is not illuminated. The light modules may employ incandescent, quartz-halogen, LED, or fluorescent light sources. Particularly, in LED embodiments, the magnetic materials serve the dual functions of mounting and heat sinking. The lighting system may be utilized as a sign, signaling device, or a building block in larger lighting systems. The lighting system has a wide variety of applications and provides a user with improved ability to control the quantity, direction, and characteristics of the emitted light.
Owner:ABL IP HLDG
Method and systems for dynamic range expansion
ActiveUS7362432B2Improve dynamic rangeSpectrum investigationNanoinformaticsFluorescent lightDynamic range
Owner:LUMINEX
Wavelength conversion element, light source device, and projector
InactiveUS20120106126A1Suppress degradation of optical use efficiencyImprove efficiencyLighting heating/cooling arrangementsProjectorsPhosphorLength wave
The phosphor wheel (wavelength conversion element) includes: a substrate; a light-emitting element having at least a phosphor layer provided on one surface of the substrate; and a first reflective portion provided in at least a first side face of the phosphor layer to change a propagation direction of the light propagating inside the phosphor layer such that an angle with respect to a normal line of the emission face where the fluorescent light is emitted from the light-emitting element is reduced.
Owner:SEIKO EPSON CORP
Combination fluorescent and LED lighting system
LEDs can be added to a conventional fluorescent lighting fixture by providing an LED circuit to the fluorescent lighting fixture pan, by adding LEDs to the fluorescent light tube with an indentation in the light tube rear to receive an LED to influence the apparent color of the the fluorescent light, or by adding an LED to either end cap of the fluorescent light tube to shine down the tube from the interior, added as an add-on band which could clip onto the tube, and could also include a circuit board based LED attached to the rear of the tube and alternatively have LED lighting within a charged fluorescent tube.
Owner:PLASTICS INVENTIONS & PATENTS INC
Flourescent light fixture
InactiveUS6908212B2Easy to installLight source combinationsPoint-like light sourceEngineeringFluorescent light
A fluorescent light fixture is provided for retrofitting light fixtures utilizing conventional fluorescent lamps into light fixtures utilizing energy efficient fluorescent lamps. The fluorescent light fixture is a single unit comprising a reflector, socket plates at each end, lamp sockets, ballast, ballast cover and wiring. The reflector may be slidably mounted onto the socket plates to allow the retrofit to expand and contract. The fluorescent light fixture may include a attachment which temporarily secures the fluorescent light fixture within a light fixture shell.
Owner:RETRO LIGHT
Fluorescence detector, filter device and related methods
ActiveUS20080013092A1Small sizeIncrease costSemi-permeable membranesDischarging arrangementAntigenFluorescent light
Microfluidic assay detectors and microfluidic assay detection methods are disclosed. A microfluidic chip is coupled to a light emitting device, emission filters and excitation filters. Excited fluorescent light is detected by a camera and a lens. The correspondent reading allows parallel detection of features such as antigens and biomarkers. A microfluidic filter and related methods are also disclosed. The filter can be used with on-chip fluid filtration such as whole blood filtration for microfluidic blood analysis. The filter is able to filter the necessary volume of fluid and in particular blood in an acceptable time frame.
Owner:CALIFORNIA INST OF TECH
Systems, methods, and apparatus for multichannel imaging of fluorescent sources in real time
ActiveUS20150182118A1Precise positioningHigh resolutionSenses disorderNervous disorderDiseaseFluorescent light
Presented herein is a multichannel imaging system capable of detecting and distinguishing multiple fluorescent light sources simultaneously. Also described herein are methods of using the system to image disease or cellular abnormalities, e.g., for diagnostic and / or intraoperative purposes.
Owner:QUEST MEDICAL IMAGING BV +2
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