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Refraction patents

      

This page is updated frequently with new Refraction-related patent applications.




 Adaptable operating frequency of a variable focal length lens in an adjustable magnification optical system patent thumbnailAdaptable operating frequency of a variable focal length lens in an adjustable magnification optical system
An imaging system is provided for a precision machine vision inspection or metrology system. The imaging system optical path includes a variable magnification lens portion and a variable focal length lens portion.
Mitutoyo Corporation


 Photoelectric conversion device and  producing photoelectric conversion device patent thumbnailPhotoelectric conversion device and producing photoelectric conversion device
A photoelectric conversion device according to the present invention has a plurality of photoreceiving portions provided in a substrate, an interlayer film overlying the photoreceiving portion, a large refraction index region which is provided so as to correspond to the photoreceiving portion and has a higher refractive index than the interlayer film, and a layer which is provided in between the photoreceiving portion and the large refraction index region, and has a lower etching rate than the interlayer film, wherein the layer of the lower etching rate is formed so as to cover at least the whole surface of the photoreceiving portion. In addition, the layer of the lower etching rate has a refractive index in between the refractive indices of the large refraction index region and the substrate.
Canon Kabushiki Kaisha


 Method and device for determining characteristic properties of a transparent particle patent thumbnailMethod and device for determining characteristic properties of a transparent particle
The invention relates to a method for determining the size d of a transparent particle, according to which method the particle is illuminated with light from a light source, a radiation detector measures a time-resolved intensity profile of light of the light source scattered by the particle, a reflection peak (10) and a refraction peak are determined in the intensity profile and the size d of the particle is determined based on a time difference between the reflection peak (10) and the refraction peak. The method according to the invention is characterized in that the time-resolved intensity profile is measured at a definable scattering angle θs, a first second-order refraction peak (11) and a second second-order refraction peak (12) having a mode different from that of the first refraction peak (11) being determined, a characteristic variable γ being determined as the ratio of a first time difference Δt01 between the reflection peak (10) and the first refraction peak (11) and of a second time difference Δt02 between the reflection peak (10) and the second refraction peak (11), and the size of only those particles being determined for which the characteristic variable γ corresponds to a definable value..
Technische Universitaet Darmstadt


 Passive method to measure strength of turbulence patent thumbnailPassive method to measure strength of turbulence
Disclosed is a method to passively measure and calculate the strength of turbulence via the index of refraction structure constant cn2 from video imagery gathered by an imaging device, such as a video camera. Processing may occur with any type computing device utilizing a processor executing machine executable code stored on memory.
National Security Technologies, Llc


 Light-emitting diode lamp patent thumbnailLight-emitting diode lamp
A light-emitting diode (led) lamp includes and optically-transparent lens and an led. The lens includes a parabolic section defined about an axis and having a focus.
Vitrulux Limited Liability Company


 Capsular membrane implants to increase accommodative amplitude patent thumbnailCapsular membrane implants to increase accommodative amplitude
A support is coupled to the lens capsule to increase accommodation. The support may be adjustable, such that patient refraction and accommodation can be adjusted following surgery.
Abbott Medical Optics Inc.


 Footwear with refractive internal illumination patent thumbnailFootwear with refractive internal illumination
Twice-refracted light, produced by emitting light for refraction from a translucent body, reflection between said translucent body and an opaque section of an upper, and refraction again by the upper, is applied to footwear to create an enhanced internal illumination effect. To create this, at least one light source is connected to a power source and installed into a footwear.

 Asymmetric optical waveguide grating resonators & dbr lasers patent thumbnailAsymmetric optical waveguide grating resonators & dbr lasers
Monolithic asymmetric optical waveguide grating resonators including an asymmetric resonant grating are disposed in a waveguide. A first grating strength is provided along a first grating length, and a second grating strength, higher than the first grating strength, is provided along a second grating length.

 Birefringent ocular for augmented reality imaging patent thumbnailBirefringent ocular for augmented reality imaging
A display apparatus has a birefringent ocular having a first index of refraction for light having a first polarization axis and a second index of refraction, lower than the first index by at least 0.1, for light having a second polarization axis that is orthogonal to the first polarization axis, wherein the birefringent ocular defines an eye box for a viewer. An image source emits image-bearing light having the first polarization axis.

 Light guide apparatus and fabrication method thereof patent thumbnailLight guide apparatus and fabrication method thereof
A light guide apparatus that can redirect light impinging on the apparatus over a wide range of incident angles and can concentrate light without using a tracking system and methods for fabrication. This apparatus uses conditions of total internal reflection and refraction near the critical angle for total internal reflection (near tir) in order to trap light within the apparatus..
Agira, Inc.


Systems and methods for identifying s-wave refractions utilizing supervirtual refraction interferometry

A system and method for identifying s-wave refractions using supervirtual refraction interferometry is disclosed. The method includes receiving a seismic data set from data generated by a plurality of receivers, and calculating crosscorrelations of pairs of common receiver gathers from the seismic data set for each of the receivers.
Cgg Services Sa

Organic light emitting diode display apparatus

Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, each of the inorganic layers has a thickness of about 40 nm to about 1000 nm and an index of refraction of about 1.41 to about 2.0, each of the organic layers has a thickness of about 0.2 μm to about 15 μm and an index of refraction of about 1.4 to about 1.65, and the organic layers are formed of an encapsulating composition.
Samsung Sdi Co., Ltd.

Light guide apparatus and fabrication method thereof

A light guide apparatus that can redirect light impinging on the apparatus over a wide range of incident angles and can concentrate light without using a tracking system and methods for fabrication. This apparatus uses conditions of total internal reflection and refraction near the critical angle for total internal reflection (near tir) in order to trap light within the apparatus..
Agira, Inc.

Illuminated keyboard

A light guide is provided for illuminating innumerable constructions, but which is ideally suited for illuminating the keys of a keyboard. The light guide includes a translucent planar plate having a top, a bottom and sides.

Image display device

An image display device, includes: a projection optical system projecting, at infinity, image light corresponding to an arbitrary image; and a first propagation optical system. The first propagation optical system includes: a first diffractive element diffracting the image light emitted from the projection optical system; a first light guide portion formed like a plate having a first plane and a second plane parallel and opposing to each other, the first light guide portion propagating in the first direction the image light deflected by the first diffractive element, between the first plane and the second plane while causing the image light to be repeatedly reflected therebetween; and a first triangular prism array deflecting through reflection or refraction, in a direction substantially perpendicular to the first plane, part of the image light propagating through the first light guide portion..
Olympus Corporation

Tunable acoustic gradient index of refraction lens and system

A tunable acoustic gradient index of refraction (tag) lens and system are provided that permit, in one aspect, dynamic selection of the lens output, including dynamic focusing and imaging. The system may include a tag lens and at least one of a source and a detector of electromagnetic radiation.

Optical semiconductor device

An optical semiconductor device in which a first optical waveguide 407 comprising a silicon-containing amorphous semiconductor layer and a second optical waveguide 409 containing a silicon-containing i-type semiconductor layer as a constituent element are disposed in different layers in a range in which optical interaction can occur. An electro-optical modulator 409 having a pin junction structure comprising a p-type semiconductor layer 403, an i-type semiconductor layer 404, and an n-type semiconductor layer 405 is provided to at least a portion of the second optical waveguide 409, and the index of refraction of the second optical waveguide is varied by the electro-optical modulator, whereby light waves propagated through the first optical waveguide are modulated..
National Institute Of Advanced Industrial Science And Technology

Contact lens for presbyopia

The present, invention relates to a contact lens for presbyopia including: a lens foody; long distance portions and short distance portions arranged on the lens body, the long distance portions having refraction for long distance and the short distance portions having refraction for short distance, wherein the lens body is divided into concentric circles as well as in top/bottom and left/right directions and the long distance portions and the short distance portions are arranged repeatedly and alternately on the neighboring divisions on the lens body.. .

Chemical nano-identification of a sample using normalized near-field spectroscopy

Apparatus and method for nano-identification a sample by measuring, with the use of evanescent waves, optical spectra of near-field interaction between the sample and optical nanoantenna oscillating at nano-distance above the sample and discriminating background backscattered radiation not sensitive to such near-field interaction. Discrimination may be effectuated by optical data acquisition at periodically repeated moments of nanoantenna oscillation without knowledge of distance separating nanoantenna and sample.
Bruker Nano, Inc.

Scintillation array apparatus and use thereof

A scintillation material is longitudinally packaged in a circumferentially surrounding sheath, where the sheath has a lower index of refraction than the scintillation material, to form a scintillation optic or scintillation fiber optic. The scintillation material yields secondary photons upon passage of a charged particle beam, such as a positively charged residual particle beam having transmitted through a sample.

Nanophotonic hyperspectral/lightfield superpixel imager

Systems and methods are described that relate to an optical system including an image sensor optically-coupled to at least one nanophotonic element. The image sensor may include a plurality of superpixels.
Verily Life Sciences Llc

Method of forming an infrared filter associated with an image sensor

An image sensor having a portion including interconnection levels formed on a semiconductor substrate covered with a first layer of a dielectric material, including conductive tracks separated from one another by insulating layers interconnected by vias crossing the insulating layers, and an infrared bandpass filter comprising filter levels adjacent to the interconnection levels formed by an alternation of second layers of the dielectric material and of silicon layers, the refraction index of the dielectric material being smaller than 2.5 at the maximum transmission wavelength of the filter, one of the second dielectric layers of each filter level being identical to the insulating layer of the adjacent interconnection level.. .
Commissariat à I'Énergie Atomique Et Aux Énergies Alternatives

Led ceiling lamp

Disclosed is an led ceiling lamp, comprising a base, a lampshade, an led assembly and a protective cover, wherein the lampshade is permanently connected with the base to form an enclosed space where the led assembly and the protective cover are accommodated; the led assembly includes a lamp panel and several led lamp beads arranged on the lamp panel, and the side of the lamp panel away from the led lamp beads is fixed on the base; the protective cover includes a cover body, arranged on the lamp panel and connected with the base, and several lenses arranged in the cover body with one lens shade on each led lamp bead. For the led ceiling lamp above, refraction of the light from the led lamp beads by the lens shades provides better light distribution and uniform luminance, making the light more uniform and softer and producing fewer dark regions..
Unilumin Group Co., Ltd.

Lens with controlled light refraction

A lens for distribution of light from a light emitter having an emitter axis. The lens including an outer surface receiving light from the inner surface which defines an inner cavity and includes an axial inner-surface portion of a conical shape formed by a substantially cross-sectionally linear inner region extending outwardly from positions at the emitter axis toward an open end of the inner cavity.
Cree, Inc.

Optometric apparatus

According to one embodiment, an optometric apparatus includes a movement mechanism system and left and right optometry units. The movement mechanism system is suspended from an arm.
Topcon Corporation

Organic light-emitting display device

An organic light-emitting display device that includes a substrate, first and second electrodes facing each other on the substrate, an organic light-emitting layer between the first and second electrodes, a thin-film encapsulation (tfe) film on the second electrode, a reflection reduction layer on the tfe film, and a refraction adjustment layer between the reflection reduction layer and the organic light-emitting layer.. .
Samsung Display Co., Ltd.

Solid-state image-capturing device and production method thereof, and electronic appliance

A high degree of phase difference detection accuracy can be obtained using a phase difference pixel (2b) with a simpler configuration. A solid-state image-capturing device includes a pixel array unit in fig.
Sony Corporation

Optical lens

An optical lens is provided. The optical lens having an optical axis comprises, in order from an object side to an image-forming side, a first lens having negative refraction power, a second lens having positive refraction power, a third lens having positive refraction power, a fourth lens having negative refraction power, a fifth lens having positive refraction power, and a sixth lens having refraction power.
h13/h13

Method for modifying power of light adjustable lens

A method for adjusting a light adjustable lens in an optical system includes providing a light adjustable lens in an optical system; providing an ultraviolet light source to generate an ultraviolet light; and irradiating the generated ultraviolet light with a light delivery system onto the light adjustable lens with a center wavelength and with a spatial irradiance profile to change a dioptric power of the light adjustable lens by changing a refraction of the light adjustable lens in a refraction-change zone, thereby causing a wavefront sag, defined as half of a product of the change of the dioptric power and the square of a radius of the refraction-change zone, to be within 10% of its maximum over an ultraviolet spectrum.. .
Calhoun Vision, Inc.

Ceramic wavelength converter having a high reflectivity reflector

There is herein described a ceramic wavelength converter having a high reflectivity reflector. The ceramic wavelength converter is capable of converting a primary light into a secondary light and the reflector comprises a reflective metal layer and a dielectric buffer layer between the ceramic wavelength converter and the reflective metal layer.
Osram Sylvania Inc.

Treatment system for liquids and interior surfaces of a fixture

A disinfecting device including a conduit configured to carry a flowing liquid. The conduit has a first index of refraction.
Kavo Dental Technologies, Llc

Optical amplifier based on electro-optic effect for electrical signals and its application as semiconductor radiation detector preamplifier

An amplifier for amplification of an electrical signal comprises an electro-optic (eo) medium for receiving the electrical signal, wherein applying the electrical signal to the eo medium causes a change to an effective index of refraction, a device configured for measuring a light phase change for measuring the change to the effective index of refraction, and a photodetector configured to convert the change to the effective index of refraction into an amplified electrical current output signal.. .

Organic light emitting diode display

An organic light emitting diode display includes: a substrate; an organic light emitting element on the substrate; and a capping layer on the organic light emitting element and including a high refraction layer formed of an inorganic material having a refractive index which is equal to or greater than about 1.7 and equal to or less than about 6.0, wherein the inorganic material includes at least one selected from cui, thallium iodide (tli), agi, cdi2, hgi2, sni2, pbi2, bii3, zni2, mni2, fei2, coi2, nii2, aluminium iodide (ali3), thorium(iv) iodide (thi4), uranium triiodide (ui3), mgs, mgse, mgte, cas, case, cate, srs, srse, srte, bas, base, bate, sns, pbs, cds, cas, zns, znte, pbte, cdte, snse, pbse, cdse, cuo, cu2o, wo3, moo3, sno2, nb2o5, ag2o, cdo, coo, pr2o3, bi2o3, fe2o3, alas, gaas, inas, gap, inp, alp, alsb, gasb, and insb.. .
Samsung Display Co., Ltd.

Microstructured optical fibre with selectively enlarged spaces of reduced refraction index, especially for the generation of nonlinear effects and stress measurements

Microstructured optical fibre with selectively enlarged spaces of reduced refraction index, especially for the generation of non-linear effects and stress measurements with a ring configuration of spaces, located around a cladded core, where the spaces demonstrate cross-section shape close to circle and decreased diffraction index, especially for the generation of non-linear effects and stress measurements, made of glass, preferably of silica glass or polymer and are located in nodes of hexagonal lattice with distances between the lattice nodes equal to the lattice constant, in which, around a single-mode core, there are, at least two rings with spaces of decreased diffraction index, filled with gas or fluid or a polymer, where the diameter of every-second space with decreased diffraction index in, at least, one ring, is enlarged to be lower from the double lattice constant, while the diameters d of all the enlarged spaces with decreased diffraction index are similar in size and the diameters d of non enlarged spaces with decreased diffraction index are close in size and lower from the lattice constant and the ratio of the diameter d of non enlarged space to the lattice constant is within the range from 0.30 to 0.45.. .
Polskie Centrum Fotoniki I SwiatlowodÓw

Light refraction imaging to measure liquid volume

A method to measure the volume of fluid present that relies on the pattern of light refraction as it passes though an airway surface liquid (asl) meniscus. The method comprises allowing epithelial cells to grow on a membrane in a well so as to form a fluid meniscus about the perimeter of the well.
University Of Pittsburgh - Of The Commonwealth System Of Higher Education

Uv-protective film for oleds

The present invention concerns a plastic foil, comprising at least one first layer of a plastic composition containing a first transparent plastic, as well as 0.01 to 15 wt. % transparent polymer diffusion particles, related to the total mass of the first layer, and at least one second layer of a plastic composition, containing a second transparent plastic and 0.01 to 5 wt.
Osram Oled Gmbh

Microstructured multicore optical fibre (mmof), a device and the fabrication a device for independent addressing of the cores of microstructured multicore optical fibre

Microstructured multicore optical fibre with a microstructure area, in which, at least two basic cells are embedded, where each of them contains a core, preferably made of glass, specifically including doped silica glass or polymer, together with the surrounding it longitudinal areas with lower refraction index vs. That of the cladding, which areas may adopt the shape of holes, filled with gas, in particular with the air or a fluid or a polymer or spaces of another glass with doping allowing to reduce refractive index (further referred to as holes), embedded in a matrix of glass, in particular of silica glass or polymer.
Inphotec Sp. O. O.

Photonic hybrid receive antenna

Methods and systems for determining true time delay from each receiving element of an ‘active electronically scanned array’ (aesa) or a phased array antenna. Embodiments of the invention can include electromagnetic em elements, optical waveguides, and wavelength selective fgbs are collectively configured as a plurality of dual purpose elements that couples an em field and uses an induced voltage to change an index of refraction of the optical waveguide's electro-optic (eo) material, where the eo material will also function as a dielectric in an antenna element, where the signals comprising optical signals propagate through em element acting as phase delay elements, where the measuring system compares the reflected signals with a reference signal with no phase delay to determine said signals phase delay..
The United States Of America As Represented By The Secretary Of The Navy

Lamp or display comprising at least one light panel on a carrier plate

The present invention relates to a lamp or a display, comprising at least one light panel (10), in particular an oled panel, lying on or against an at least partially light-permeable carrier plate (13) in a planar manner, wherein according to the invention a liquid or viscous adhesive medium (11) is arranged between the adjacent surfaces of the light panel (10) and of the light-permeable carrier plate (13). In this way, lamps or displays in which one or more light panels (10) lie on an at least partially light-permeable carrier plate (13) can be created, wherein a full-area connection between the light panel (10) and the carrier plate (13) having minimized light losses is achieved and at the same time the connection between the light panel (10) and the carrier plate (13) can be undone.
Emdedesign Gmbh

Computerized refraction and astigmatism determination

The present disclosure relates generally to a system and method for determining the refractive error of a patient, more particularly determining the patient's refractive error by using a computerized screen, and providing the patient with a prescription for the patient's preferred type of corrective lenses. The system and method do not require the trip or expense of a doctor visit, and are optimized for convenience and cost effectiveness.

Semiconductor device and manufacturing semiconductor device

Described herein is a semiconductor device comprising: a semiconductor substrate; a trench provided at a surface of the semiconductor substrate; a first insulating layer covering an inner surface of the trench; and a second insulating layer located at a surface of the first insulating layer in the trench. A refraction index of the first insulating layer is larger than a refraction index of the second insulating layer..
Toyota Jidosha Kabushiki Kaisha

Tunable acoustic gradient index of refraction lens and system

A tunable acoustic gradient index of refraction (tag) lens and system are provided that permit, in one aspect, dynamic selection of the lens output, including dynamic focusing and imaging. The system may include a tag lens and at least one of a source and a detector of electromagnetic radiation.

Light refraction structure and its manufacture method, color filter substrate and its manufacture method, and display device

The present disclosure provides a light refraction structure and its manufacture method, a color filter substrate and its manufacture method, and a display device. The method for manufacturing the light refraction structure includes steps of: forming on a base substrate a plurality of light-shielding stripes parallel to each other, and forming a protrusion made of a transparent material between the adjacent light-shielding stripes, wherein the protrude is capable of refracting a light beam from the base substrate in a direction close to the light-shielding stripe..
Hefei Boe Optoelectronics Technology Co., Ltd.

Subjective wavefront refraction using continuously adjustable wave plates of zernike function

A wavefront device produces adjustable amplitudes in optical path differences and adjustable axis orientation angles. Two substantially identical wave plates have a wavefront profile of at least the third order zernike polynomial function which are not circularly symmetric, as denoted by z(i,j) where i≧3 and j≠0.

Device and measuring subjective refraction

The invention relates to a device for measuring the subjective refraction of a person in near and/or medium vision, which comprises, according to the invention, for each eye of the person, a correction mounting (3) provided with at least one corrective lens, the correction mountings (3) being arranged such that the person looks through the lenses. The position of each correction mounting (3) is variable such as to adjust an angle (a) between the axes of the lenses..
Essilor International (compagnie Generale D'optique)

System and controlling and measuring steam

A system and method for controlling steam based on a determination of steam quality include a steam conduit defining an interior volume of steam, an emitter for first and second coherent light beams, a receiver for signals resulting from an interference pattern of the first and second coherent light beams after refraction from a droplet in the steam at a convergence point, and a processor to determine steam quality based on the signals. There can be more than one receiver to account for phase differences related to droplet shape and size.
Agar Corporation Ltd.

Optical lens

This present invention provides an optical lens, which includes, in order from an object side to an image-forming side, a first lens group having positive refraction power and a second lens group having negative refraction power. The first lens group comprises a first lens, a second lens, and a third lens.
Ability Enterprise Co., Ltd.

Ophthalmic lens for correcting astigmatism

An ophthalmic lens to be worn on or in a human eye for refractive correction of astigmatism. The lens has an anterior surface and a posterior surface shaped such that at least a zone of the lens said lens has a first dioptric power over a first main meridian, a second dioptric power different from the first dioptric power over a second main meridian intersecting the first meridian, and a dioptric power between the first dioptric power and said second dioptric power over each meridian between the first and second main meridians, the optical power continuously varying from meridian to meridian.
Ophtec B.v.

Tunable lighting apparatus

A luminaire including a housing and a light source carried by the housing. The housing may include a first and second set of light emitting elements and a lens assembly.
Lighting Science Group Corporation

Multi-functional sensor assembly

A sensor assembly has a flexible body, and a plurality of fiber bragg gratings (fbg) sensor inserted into the body, the fbg sensor includes an optical fiber extending in a length direction of the body and a plurality of lattices disposed in the optical fiber, a variation of a wavelength spectrum of light, caused by a variation of an interval of the plurality of lattices, is detected, and at least one of force information applied to the body and temperature information of the body is extracted together with refraction information of the body.. .
Korea Institute Of Science And Technology

Coupling of photodetector array to optical demultiplexer outputs with index matched material

A system is provided for improved coupling of photodetectors to optical demultiplexer outputs, for example an arrayed waveguide grating (awg), using a refractive index matched material. In one embodiment, the system may include an optical demultiplexer including multiple optical outputs corresponding to multiple signal channels and a photodetector array including a plurality of photodiodes aligned with the multiple optical outputs.
Applied Optoelectronics, Inc.



Refraction topics:
  • Refraction
  • Semiconductor
  • Transparent Electrode
  • Scattering
  • Nanoparticle
  • Distributed
  • Liquid Crystal Display
  • Liquid Crystal
  • Irradiation
  • Second Wave
  • Integrated Circuit
  • Light Guide
  • Data Processing
  • Laser Vision
  • Treatments


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    This listing is a sample listing of patent applications related to Refraction for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Refraction with additional patents listed. Browse our RSS directory or Search for other possible listings.


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