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Refract patents



      
           
This page is updated frequently with new Refract-related patent applications. Subscribe to the Refract RSS feed to automatically get the update: related Refract RSS feeds. RSS updates for this page: Refract RSS RSS


Low-mode high power fiber combiner

Anti-peeping privacy device

Imaging lens

Date/App# patent app List of recent Refract-related patents
08/28/14
20140243931
 Method and apparatus for application of a neural stimulus patent thumbnailnew patent Method and apparatus for application of a neural stimulus
A method of applying a neural stimulus with an implanted electrode array involves applying a sequence of stimuli configured to yield a therapeutic effect while suppressing psychophysical side effects. The stimuli sequence is configured such that a first stimulus recruits a portion of the fibre population, and a second stimulus is delivered within the refractory period following the first stimulus and the second stimulus being configured to recruit a further portion of the fibre population.
08/28/14
20140243695
 Method and system for evaluating stability of cardiac propagation reserve patent thumbnailnew patent Method and system for evaluating stability of cardiac propagation reserve
A method of determining the susceptibility to ventricular arrhythmias in a subject, comprises the steps of: (a) collecting (e.g., by surface ekg or intracardiac ekg) at least one qt and di interval data set from the subject during a stage of gradually increasing heart rate or a stage of gradually decreasing heart rate; (b) determining (e.g., by applying low- and high pass filtering) low-frequency qt-di interval trends and high-frequency qt-di fluctuation signals in said at least one qt and di interval data set; (c) finding a plurality of correlated and anti-correlated portions between said high-frequency qt-di fluctuation signals; (d) determining corresponding regression lines for said correlated and anti-correlated portions; (e) finding a plurality of (or in some embodiments all) steady state qt-di points designated by intersections between said low frequency qt-di trends and said corresponding regression lines; (f) fitting action potential durations computed from a rate dependent reaction-diffusion model to corresponding ones of said steady state qt-di points to give (i) a model excitation threshold and (ii) a minimal level of refractoriness at a plurality of (or in some embodiments all of) said steady state qt-di points; (g) at the steady state qt-di point corresponding to the highest heart rate in said qt and di interval data set, determining the difference between said minimal level of refractoriness and a model critical excitation threshold for a stable solitary pulse corresponding to the rate dependent reaction diffusion model of step (f) to give a reserve of refractoriness (ror); (h) fitting action potential durations computed from a rate dependent reaction-diffusion model to said correlated and anti-correlated portions to give a rate of adaptation of each model excitation threshold to a corresponding steady state value at a plurality of (or in some embodiments all of) said steady state qt-di points; (i) at the steady state qt-di point corresponding to the highest heart rate in said qt and di interval data set, determining the inverse of said rate of adaptation to give a reserve of memory (rom); (j) combining said reserve of refractoriness (ror) and said reserve of memory (rom) to produce a metric of stability-of-propagation reserve (sopr) in said subject, a higher value of sopr indicating lower susceptibility to ventricular arrhythmias in said subject. Systems and apparatus for carrying out the method are also described..
08/28/14
20140243443
 Hydrophilicity alteration system and method patent thumbnailnew patent Hydrophilicity alteration system and method
A system/method allowing hydrophilicity alteration of a polymeric material (pm) is disclosed. The pm hydrophilicity alteration changes the pm characteristics by decreasing the pm refractive index, increasing the pm electrical conductivity, and increasing the pm weight.
08/28/14
20140242865
 Transparent composite substrate and display element substrate patent thumbnailnew patent Transparent composite substrate and display element substrate
A transparent composite substrate according to the present invention includes a composite layer containing a glass cloth formed of an assembly of glass fibers and a resin material impregnated in the glass cloth. The assembly of the glass fibers itself has a variation in a refractive index and a difference between a maximum value and a minimum value of the refractive index is equal to or less than 0.008.
08/28/14
20140242736
 Mixed metal-silicon-oxide barriers patent thumbnailnew patent Mixed metal-silicon-oxide barriers
A method of forming a thin barrier film of a mixed metal-silicon-oxide is disclosed. For example, a method of forming an aluminum-silicon-oxide mixture having a refractive index of 1.8 or less comprises exposing a substrate to sequences of a non-hydroxylated silicon-containing precursor, activated oxygen species, and metal-containing precursor until a mixed metal-silicon-oxide film having a thickness of 500 Ångstroms or less is formed on the substrate..
08/28/14
20140242269
 Coating compositions for inorganic casting molds and cores, comprising formic acid esters, and use thereof patent thumbnailnew patent Coating compositions for inorganic casting molds and cores, comprising formic acid esters, and use thereof
The subject matter of the invention relates to coating compositions comprising formic acid esters, an aqueous carrier liquid and pulverulent refractory material, and to the use thereof for casting molds, in particular those produced using water glass as a binder.. .
08/28/14
20140242090
 Methods for the treatment of il-1beta related conditions patent thumbnailnew patent Methods for the treatment of il-1beta related conditions
Disclosed are methods and materials for inhibiting (e.g., treating or preventing) uveitis in a subject, including treatment refractory uveitis, using anti-il-1β binding molecules (e.g., il-1β binding antibodies or binding fragment thereof).. .
08/28/14
20140241949
 Radiant heat tube chemical reactor patent thumbnailnew patent Radiant heat tube chemical reactor
A radiant heat-driven chemical reactor comprising a generally cylindrical pressure refractory lined vessel, a plurality of radiant heating tubes, and a metal tube sheet to form a seal for the pressure refractory lined vessel near a top end of the pressure refractory lined vessel. The metal tube sheet has a plurality of injection ports extending vertically through the metal tube sheet and into the refractory lined vessel such that biomass is injected at an upper end of the vessel between the radiant heating tubes, and the radiant heat is supplied to an interior of the plurality of radiant heating tubes.
08/28/14
20140241686
 Optical fiber and method of manufacturing the same patent thumbnailnew patent Optical fiber and method of manufacturing the same
An optical fiber is provided. The optical fiber has a refractive index profile that includes a central core, an inner cladding layer, a trench layer, and an outer cladding layer.
08/28/14
20140241685
 Multimode optical fibers and methods of manufacture thereof patent thumbnailnew patent Multimode optical fibers and methods of manufacture thereof
The present invention generally relates to the field of fiber optics, and more specifically to optical fibers, methods of manufacturing optical fibers, and methods of classifying optical fibers. In an embodiment, the present invention is a multimode optical fiber which comprises a core and clad material system where the refractive indices of the core and cladding are selected to minimize chromatic dispersion in the 850 nm wavelength window and the refractive index profile is optimized for minimum modal-chromatic dispersion in channels utilizing vcsel transceivers.
08/28/14
20140241684
new patent Low attenuation optical fibers with an f-graded index core
An optical fiber is provided that includes a fiber configured to transmit optical data in a plurality of modes or in a single mode; a core region in the fiber that comprises fluorine-doped silica; and a cladding in the fiber that surrounds the core region and that comprises fluorine-doped silica. The core region has a graded refractive index profile with an alpha of about 0.5 to 5.
08/28/14
20140241663
new patent Ultra-high power multimode combiner
An ultra-high power fiber laser system includes a multimode combiner which is configured with a plurality of low mode fibers bundled together and tapering toward its downstream end. The system further includes a clad mode absorber extending along the tapered downstream end of the combiner and extending over a portion of the combiner's output fiber.
08/28/14
20140241662
new patent Optical device module and optical communication network system using the same
An optical device module includes a substrate, an interlayer insulating layer on the substrate, an optical waveguide on the interlayer insulating layer, an optical device on the optical waveguide, and a prism disposed between the optical device and the optical waveguide. The prism has a refractive index greater than a refractive index of the optical waveguide..
08/28/14
20140241661
new patent Subwavelength grating coupler
A method, system or device for configuring an optical coupling device including obtaining characteristics of an optical signal and ambient conditions for storage in memory, utilizing a processor for identifying an optimum effective subwavelength area refractive index and a grating period for the input signal and ambient characteristics stored in memory, and utilizing the processor for identifying a preferred filling factor for a transverse polarization.. .
08/28/14
20140241605
new patent Methods and computer program products for quantitative three-dimensional image correction and clinical parameter computation in optical coherence tomography
Methods and computer program products for quantitative three-dimensional (“3d”) image correction in optical coherence tomography. Using the methods and computer program products, index interface (refracting) surfaces from the raw optical coherence tomography (“oct”) dataset from an oct system can be segmented.
08/28/14
20140241485
new patent Unknown
A nuclear fuel cladding tube for a liquid-metal or molten-salt cooled reactor includes a tubular body of metal material and a protective coating applied on an outer surface of the tubular body, to contact the coolant. The coating includes at least one layer of coating material selected from the group consisting of ceramic materials, refractory metals, and fecraly alloys, and includes a matrix composed of the coating material in amorphous phase, inside which nanodomains composed of the coating material in crystalline phase are dispersed..
08/28/14
20140241390
new patent Semiconductor light emitting device and method for manufacturing same
According to an embodiment, a semiconductor light emitting device is configured to emit light by energy relaxation of an electron between subbands of a plurality of quantum wells. The device includes an active layer and at least a pair of cladding layers.
08/28/14
20140241389
new patent Semiconductor light emitting device and method for manufacturing same
According to an embodiment, a semiconductor light emitting device is configured to emit light by energy relaxation of an electron between subbands of a plurality of quantum wells. The device includes an active layer and at least a pair of cladding layers.
08/28/14
20140241385
new patent Low-mode high power fiber combiner
A high power fiber laser system is configured with a combiner end fiber spliced to a combiner output fiber. The system further includes a light stripper extending along the combiner end and output fibers and configured with sequentially located zones which are provided with respective refractive indices.
08/28/14
20140240962
new patent Cup with twinkling light effects
This invention provides a cup with twinkling light effects, primarily comprising an inner cup, an outer cup, and a light unit, with the lower half of the inner cup having a number of arched convex strips, and the base of which has diamond-facet of concave and convex cones. As a result, when the light unit at the base of the outer cup is activated, the effects of the arched convex strips and diamond facets cause the cup to produce numerous refractions of the light source, creating twinkling rays of light with dazzling variation..
08/28/14
20140240960
new patent Display having a backplane with an edge surface that makes an angle with the top surface
A display is disclosed. The display has a backplane with a top surface and an edge surface.
08/28/14
20140240853
new patent Imaging lens
An imaging lens includes an object-side lens group having positive refractive power; an aperture stop; and an image plane-side lens group having positive refractive power, arranged in this order from an object side to an image plane side. The object-side lens group includes a first lens having positive refractive power; a second lens having negative refractive power; and a third lens having positive refractive power.
08/28/14
20140240852
new patent Imaging lens assembly
An imaging lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface.
08/28/14
20140240851
new patent Imaging lens and imaging apparatus
Wherein sagsp1 is the sag of a reference spherical surface at the edge of the effective diameter of the object side surface of the negative lens, sagas1 is the sag of the aspherical surface of the lens, re1 is the effective diameter of the object side surface of the lens, and ndab is the average refractive index of the positive lens and the negative lens.. .
08/28/14
20140240847
new patent Zoom lens
A zoom lens includes a first lens group, a second lens group, a third lens group, a fourth lens group, a fifth lens group and a sixth lens group, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens group is with positive refractive power.
08/28/14
20140240830
new patent Optical film and method of adjusting wavelength dispersion characteristics of the same
There is provided an optical film. The optical film includes at least one retardation film and at least one isotropic layer made of an isotropic material, herein the difference in average refractive index between the retardation film and the isotropic layer is at least 0.1 or more.
08/28/14
20140240819
new patent Multi-core amplification optical fiber and multi-core optical fiber amplifier
A multi-core amplification optical fiber includes a plurality of rare-earth-doped core portions and a cladding portion positioned at an outer periphery of the core portions and having refractive index lower than those of the core portions. When a doping concentration of the rare-earth of each of the core portions is 250 ppm to 2000 ppm, a relative refractive index difference of each of the core portions relative to the cladding portion is 0.5% to 2% at a wavelength of 1550 nm, and a core diameter of each of the core portions is 1 μm to 5 μm, a separation distance between each of the core portions and adjacent one of the core portions is set at equal to or larger than 30 μm and at equal to or smaller than 60 μm so that a light-crosstalk between the adjacent core portions is equal to or lower than −30 db..
08/28/14
20140240627
new patent Anti-peeping privacy device
An anti-peeping privacy device is provided, including a polarizing element, a liquid crystal member and a diffusing element. The liquid crystal member is disposed on the polarizing element.
08/28/14
20140240583
new patent Finder optical system and image pickup apparatus including the same
A finder optical system includes an erecting optical system, an eyepiece optical system, and a light metering optical system. An optical axis of the light metering optical system is non-parallel to an optical axis of the eyepiece optical system.
08/28/14
20140239534
new patent Nano-structured refractory metals, metal carbides, and coatings and parts fabricated therefrom
Refractory metal and refractory metal carbide nanoparticle mixtures and methods for making the same are provided. The nanoparticle mixtures can be painted onto a surface to be coated and heated at low temperatures to form a gas-tight coating.
08/28/14
20140239524
new patent Hydrophilicity alteration system and method
A system/method allowing hydrophilicity alteration of a polymeric material (pm) is disclosed. The pm hydrophilicity alteration changes the pm characteristics by decreasing the pm refractive index, increasing the pm electrical conductivity, and increasing the pm weight.
08/28/14
20140239516
new patent Carbosilane polymer compositions for anti-reflective coatings
A silicon polymer material, which has a silicon polymer backbone with chromophore groups attached directly to at least a part of the silicon atoms, the polymer further exhibiting carbosilane bonds. The film forming composition and resulting coating properties can be tailored to suit the specific exposure wavelength and device fabrication and design requirements.
08/28/14
20140239431
new patent Image sensor and computing system having the same
An image sensor includes a light receiving element, an anti-reflection layer, a high refractive pattern, a color filter, and a micro lens. The light receiving element is formed on a semiconductor substrate to generate charges responsive to incident light.
08/28/14
20140239251
new patent Semiconductor light emitting element and display device
A semiconductor light emitting element is provided in which an optical intensity distribution of light to be emitted is the normal distribution and which can form a highly fine image. In the semiconductor light emitting element, first regions and second regions are periodically and alternately arranged in an optical waveguide along an extending direction thereof, and when the number of the first regions and the number of the second regions are represented by p1 and p2, respectively, if (p1−p2)=1, p2 is an integer of 2 or more, and if (p2−p1)=1, p1 is an integer of 2 or more.
08/28/14
20140239202
new patent Gas refraction compensation for laser-sustained plasma bulbs
A laser-sustained plasma illuminator system includes at least one laser light source to provide light. At least one reflector focuses the light from the laser light source at a focal point of the reflector.
08/28/14
20140239181
new patent Film thickness measurement method
A measurement target including a semiconductor substrate, and a first epitaxial layer and a second epitaxial layer stacked in this order on the semiconductor substrate and having no difference in refractive index of a real part from the semiconductor substrate is subjected to reflection interference analysis using a fourier transform infrared spectroscopy. The thickness of the first epitaxial layer is used as a fitting parameter so as to prevent shift between an interference waveform of a resultant reflection interference pattern containing distortion appearing in a wave number range near an abnormal dispersion range of a refractive index caused by phonon absorption and an interference waveform of a numerically calculated reflection interference pattern in the same wave number range.
08/28/14
20140238975
new patent Monolithic thermal heating block made from refractory phosphate cement
The invention relates to the field of resistance heating in industrial resistance furnaces and, more specifically, to monolithic cement thermal heating blocks. The monolithic thermal heating block having a heating element disposed therein, the symmetry axes of which coincide with the symmetry axes of the monolithic thermal heating block, is made of nonelectrically but thermally conductive refractory phosphate cement.
08/28/14
20140238850
new patent Tubular target and method of producing a tubular target
A tubular target is formed of refractory metal or a refractory metal alloy. The target has at least one tubular portion x with a relative density rdx and at least one tubular portion y with a relative density rdy.
08/28/14
20140238632
new patent Methods for repairing ceramic cores
A method is provided for repairing defects in a ceramic core adapted for use in a casting process. The ceramic core is formed from a slurry comprising at least one refractory powder material suspended in a liquid vehicle.
08/28/14
20140238594
new patent Method for manufacturing colorless transparent glass-fabric reinforced polyimide film for flexible displays
A method of manufacturing a colorless transparent polyimide film having reinforced glass fabric for flexible displays, suitable for use in increasing optical transmittance of a polyimide substrate having reinforced glass fabric for flexible displays. This method enables the glass fabric and the colorless transparent polyimide film to be matched in refractive index when the glass fabric is reinforced in the colorless transparent polyimide film to enhance thermal and mechanical properties of a substrate for flexible displays, thus satisfying high optical transparency and optical transmittance of 85% or more, required of a substrate for flexible displays, and thereby the colorless transparent polyimide film having reinforced glass fabric can be used as a substrate for flexible displays..
08/21/14
20140235886
Phosphorus-based (meth)acrylate compound and method of preparing the same
This invention relates to a novel compound having high refractive index suitable for use in optical resin materials, etc., without containing a sulfur atom, and to a method of preparing the same, in which the compound is a phosphorus-based (meth)acrylate compound represented by formula (i).. .
08/21/14
20140235749
Acrylonitrile-acrylate-styrene graft copolymer and thermoplastic resin composition comprising thereof
Disclosed are an acrylonitrile-acrylate-styrene graft copolymer having a structure including a seed which comprises at least one of an aromatic vinyl compound, a vinyl cyanide compound and an alkyl(meth)acrylate compound, a core which surrounds the seed and comprises alkyl acrylate, and a shell which surrounds the core and comprises at least one of an aromatic vinyl compound, a vinyl cyanide compound and an alkyl(meth)acrylate compound, and having suitably controlled thicknesses and refractive indexes of the respective layers, and a thermoplastic resin composition comprising the acrylonitrile-acrylate-styrene graft copolymer.. .
08/21/14
20140233895
Fiber-optic connector
A fiber-optic connector for connecting an optical fiber to other optical assemblies is disclosed. The fiber-optic connector includes a top plate having a window of similar refractive index and transmission index as the material of an optic fiber to be contained within the fiber-optic connector.
08/21/14
20140233890
Index matched grating inscription
The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the lensing phenomenon by surrounding an optical fiber with an index-matching material that is held in a vessel with an integrated interferometer (e.g., phase mask, etc.).
08/21/14
20140233888
Index matched grating inscription
The disclosed embodiments provide systems and methods for mitigating lensing and scattering as an optical fiber is being inscribed with a grating. The disclosed systems and methods mitigate the lensing phenomenon by surrounding an optical fiber with an index-matching material that is held in a vessel with an integrated interferometer (e.g., phase mask, etc.).
08/21/14
20140233884
Method of optical self-switching using microresonator optical switch having nanoparticles
An optical switch includes a microresonator comprising a plurality of silicon nanoparticles within a silicon-rich silicon oxide layer. The microresonator further includes an optical coupler optically coupled to the microresonator and configured to be optically coupled to a signal source.
08/21/14
20140233877
Optical modulator and method of manufacturing the optical modulator
An optical modulator includes a dielectric layer and a metal layer arranged on the dielectric layer. In the optical modulator, a first light of a first frequency and a second light of a second frequency that are incident upon the metal layer exit from the metal layer at different refractive angles due to surface plasmon generation..
08/21/14
20140233258
Backlight module
A backlight module includes: a light guiding plate; at least one light guiding point which is formed on a bottom surface of the light guiding plate; an upper light-permeable thin film disposed on a top surface of the light guiding plate; a lower light-permeable thin film disposed on the bottom surface of the light guiding plate and opposite to the upper light-permeable thin film; and a luminous element from which light beams are incident to the light guiding plate. The upper and lower light-permeable thin films respectively have refractive indices lower than that of the light guiding plate so that a total internal reflection of the light beams occurs between the upper and lower light-permeable thin films..
08/21/14
20140233240
Disk having an illuminated switch surface
A disk having an illuminated switch surface is described. The disk has a transparent substrate, an electrically conductive structure, which forms a switch surface, a flat conductor, which is electrically connected to the electrically conductive structure by means of an electrical connecting element, a light-irradiation means, which has at least one light source and is arranged on the flat conductor and on a lateral edge of the substrate.
08/21/14
20140233118
Camera arrangement for a motor vehicle
A camera arrangement for a vehicle includes a camera and a prism. The camera is arranged behind a windshield of the vehicle.
08/21/14
20140233111
Imaging lens
An image lens is disclosed. The image lens includes, arranged in succession from the object side to the image side, an aperture stop s1, a first lens l1 having two convex surfaces and having a positive refractive power, a second lens l2 having a meniscus shape convex toward the object side and having a negative refractive power, a third lens l3 having a positive refractive power, a fourth lens l4 having a meniscus shape convex toward the image side and having a positive refractive power, and a fifth lens l5 having a meniscus shape convex toward the object side and having a negative refractive power..
08/21/14
20140233106
Object with reflection-reducing coating and method for the production thereof
An object with reflection-reducing coating includes a substrate and a coating arranged on the substrate. The coating is multilayered and includes an outer layer having a refractive index n1 and at least one second sub-layer with a refractive index n2 which is adjacent to the outer layer.
08/21/14
20140233104
Optical element, window material, fitting, and solar shading device
An optical element is provided with a wavelength-selective reflection layer having a five-layer configuration in which high-refractive-index layers and metal layers are alternately stacked. The present invention is designed so that the ratio α of an optical film thickness db of the entire metal layer relative to an optical film thickness da of the high-refractive-index layers as a whole, and the ratio β (=d3/d1) of an optical film thickness d3 of the third high-refractive-index layer with respect to the optical film thickness d1 of the first high-refractive-index layer as viewed from either the first optical layer side or the second optical layer side are included within a predetermined range..
08/21/14
20140233101
Image display device
According to an embodiment, an image display device includes an optical element, a voltage controller, and a display. Regarding the optical element, the refractive-index distribution changes according to the voltage applied thereto.
08/21/14
20140233092
Near infrared blocking film and near infrared blocking body
The near-infrared shielding film includes an optical interference film formed by alternately laminating a high refractive index layer containing a first water-soluble polymer and first metal oxide particles and a low refractive index layer containing a second water-soluble polymer and second metal oxide particles, on a substrate, in which the first metal oxide particles are particles formed by coating titanium oxide particles with silicon-containing hydrated oxide.. .
08/21/14
20140233085
Reflective optical limiter
An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering.
08/21/14
20140233033
Optically variable entity authenticating device and method
Disclosed is a device for the authentication of an optically variable entity exhibiting a color shift with changing viewing-angle, the device comprising a plate of light-refractive material, said plate having two surfaces and an array of light-refracting protrusions or recesses on at least one of said surfaces, and being disposed in said device such as to provide, aside each other, a direct view and a view through said plate onto at least parts of said optically variable entity, said view through said plate being an angularly deflected view, resulting from light refraction at said protrusions or recesses. Further disclosed is a method for authenticating an optically variable entity, as well as the use of a plate having two parallel surfaces and an array of positive or negative light-refracting protrusions or recesses on at least one of said surfaces for authenticating an optically variable entity..
08/21/14
20140233011
System and method for compensating instability in an autofocus system
An autofocus system and method designed to account for instabilities in the system, e.g. Due to instabilities of system components (e.g.


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