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Refraction patents



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


Bend compensated filter fiber

Bend compensated filter fiber

Bend insensitive gradient index multi-mode light conducting fiber

Bend insensitive gradient index multi-mode light conducting fiber

Date/App# patent app List of recent Refraction-related patents
11/13/14
20140336973
 Method and apparatus for motion compensation in interferometric sensing systems patent thumbnailMethod and apparatus for motion compensation in interferometric sensing systems
An optical interrogation system, e.g., an ofdr-based system, measures local changes, of index of refraction of a sensing light guide subjected to a time-varying disturbance. Interferometric measurement signals detected for a length of the sensing light guide are transformed into the spectral domain.
11/13/14
20140334788
 Bend compensated filter fiber patent thumbnailBend compensated filter fiber
An optical fiber includes a core region having a longitudinal axis. A cladding region surrounds the core region.
11/13/14
20140334787
 Bend insensitive gradient index multi-mode light conducting fiber patent thumbnailBend insensitive gradient index multi-mode light conducting fiber
The invention relates to a bend insensitive gradient index multi-mode light conducting fiber comprising a leakage mode dependent optical core diameter that is uniform over its length and a numerical aperture that is uniform over its length, a core (1), an inner cladding (2), a refraction index trench (3) and an outer cladding (4), wherein the core (1) includes a core radius r1, an alpha-refraction index profile and a core refraction index difference dn1 with respect to the outer cladding (4), wherein the refraction index trench (3) includes a refraction index trench radius r3 and a trench refraction index difference dn3 with respect to the outer cladding (4), wherein the outer cladding (4) includes an outer cladding radius r4 and a refraction index between 1.40 and 1.55, wherein for a light wavelength of 850 nm and a full core excitation (ofl), the optical core diameter for a fiber length in a range between 2 m and 300 m decreases by less than 5% and the numeric aperture decreases by less than 2.5% and the bend related attenuation increase for two windings and a bend radius of 7.5 mm is less than 0.2 db.. .
11/13/14
20140333897
 Universal objective refraction patent thumbnailUniversal objective refraction
Is the spherical equivalent of a predetermined object distance d for close viewing.. .
11/13/14
20140332508
 Process of laser welding with a calibration unit with refraction means patent thumbnailProcess of laser welding with a calibration unit with refraction means
Provided is a laser welding process, including: emitting and propagating a laser beam having a diameter of between 30 pm and 1.5 mm along a first optical axis; refracting said laser beam including deviating the faster beam along a second optical axis that is different to said first optical axis; and moving the laser beam simultaneously with said refracting step, comprising rotating said laser beam in relation to an axis of rotation substantially parallel to said first optical axis maintaining the arrangement of said second optical axis constant with respect to said first optical axis, wherein said moving step, said second optical axis is moved in a feed direction so as to execute a helicoidal weld bead, and said rotation is performed at a speed of between 10 hz and 500 hz, and in that said laser beam has a diameter of between 30 pm and 1.5 mm.. .
11/06/14
20140328069
 Optical lens patent thumbnailOptical lens
Disclosed is an optical lens having an incident surface on which the light emitted from a light emitting diode is incident and having a concave portion into which the light is received and an emitting surface emitting the light incident on the incident surface therethrough, the optical lens including: a plurality of refraction prevention portions protruded unitarily from the emitting surface to allow the light around a light axis emitted through the emitting surface to travel straight, without having any refraction, each refraction prevention portion having an orthogonal surface formed thereon to the advancing direction of the light incident through the incident surface.. .
11/06/14
20140327892
 Method of operating a microlithographic projection exposure apparatus and projection objective of such an apparatus patent thumbnailMethod of operating a microlithographic projection exposure apparatus and projection objective of such an apparatus
A projection objective of a microlithographic projection exposure apparatus has a wavefront correction device comprising a first refractive optical element and a second refractive optical element. The first refractive optical element comprises a first optical material having, for an operating wavelength of the apparatus, an index of refraction that decreases with increasing temperature.
11/06/14
20140327884
 Method for automatic optimization of the calculation of an intraocular lens to be implanted patent thumbnailMethod for automatic optimization of the calculation of an intraocular lens to be implanted
A method for calculating the values of an intraocular lens to be implanted, wherein the results of numerous cataract operations are taken into account in the calculation for intraocular lenses to be implanted in the future. At least the corneal topography, the length of the eye and the depth of the anterior chamber are determined pre-operatively, the values of the iol to be implanted are calculated by means of ray-tracing, and at least the corneal topography, the length of the eye, the depth of the anterior chamber and the objective, wavefront-based residual refraction are determined post-operatively.
10/30/14
20140323978
 Autoinjector patent thumbnailAutoinjector
Described is an autoinjector comprising a case, a drive carriage disposed in the case, and a plunger coupled to the drive carriage. The plunger is adapted to releasably engage a needle retraction mechanism in a syringe.
10/30/14
20140323323
 Silicon-based photonic crystal fluorescence enhancement and laser line scanning instrument patent thumbnailSilicon-based photonic crystal fluorescence enhancement and laser line scanning instrument
A silicon-based photonic crystal includes a silicon substrate, a first dielectric with a grating structure formed therein, and a second dielectric with a higher index of refraction that covers at least a portion of the grating structure. The first dielectric can be formed on the silicon substrate, or a fabry-perot optical cavity can be formed between the silicon substrate and the first dielectric.
10/30/14
20140319116
Transparent pane with electrically conductive coating
A transparent pane is described. The transparent pane has at least one transparent substrate and at least one electrically conductive coating on at least one surface of the transparent substrate.
10/23/14
20140313741
Lamp having an annular light-guiding body
A lamp having an annular light-guiding body includes a light-emitting diode module, a light-emitting diode substrate, a circuit board, a power supply base and a bulb. The bulb is a semi-circular casing structure.
10/23/14
20140312565
Reel belt of gaming machine and gaming machine
Provided is a reel unit for a gaming machine which suppresses decrease in visibility of a reel belt due to the formation of image of light source on a reel even if light emission intensity for illuminating the reel is high. It is provided a first light diffusion sheet with translucency having a light refraction surface including a surface formed thereon for refracting light passing therethrough in various directions, the first light diffusion sheet stacked on a base sheet; and a second light diffusion sheet having the light refraction surface, the second light diffusion sheet stacked on the first light diffusion sheet..
10/16/14
20140307477
Light guide plate with uniform light output and method of manufacturing same
A light guide plate includes a main body and a number of transparent particles. The main body includes a light incident surface, and defines a micro structure in the light incident surface.
10/16/14
20140307476
Multilayer license plate lighting apparatus
A lighting apparatus for illuminating a license plate includes a light source and a multilayer light guide. The multilayer light guide is configured to carry light from the light source and to cast light onto the license plate.
10/16/14
20140307432
Illumination module
An illumination module includes a lens and a plurality of light-emitting elements. The light-emitting elements are symmetrically arranged in a ring shape around a central axis.
10/16/14
20140307307
Diffractive optical element with undiffracted light expansion for eye safe operation
Aspects of the subject disclosure are directed towards safely projecting a diffracted light pattern, such as in an infrared laser-based projection/illumination system. Non-diffracted (zero-order) light is refracted once to diffuse (defocus) the non-diffracted light to an eye safe level.
10/16/14
20140307252
Surveying device
Some embodiments of the invention may relate to an optical surveying device having a base for setting up the surveying device and a targeting unit, which is rotatable in relation to the base about two axes, and which defines a target axis or targeting a target object to be surveyed. In some embodiments, the targeting unit has a first beam path for emitting optical radiation in the direction of the target object to be surveyed and a second beam path for receiving a component of the optical radiation, which is reflected from the target object, by way of an optoelectronic receiving element.
10/09/14
20140302290
Recorded matter, recording method, and image processing method
A recorded matter recorded on a recording medium includes a first layer formed by an ink a on or above the recording medium, the first layer having an index of refraction a; a second layer formed by an ink b on the first layer formed by the ink b, the second layer having an index of refraction b (where b<a); and a third layer formed by an ink c or by a transparent resin material on the second layer, the third layer having an index of refraction c (where c>a) and forming a surface layer of the recorded matter.. .
10/09/14
20140300896
Method and apparatus for ofdr-based electrophoresis
An optical interrogation system, e.g., an ofdr-based system, measures local changes of index of refraction of a medium contained within a light guiding tube and includes an optical interferometric interrogator, optical detection circuitry, and a data processor. The data processor initiates a sweep of the light source and guide light from an interrogating light source into a medium contained by a tube which restricts movement of particles provided into the tube, where the medium is subjected to a driving force that overcomes resistance to movement of particles through the medium in the tube.
10/09/14
20140300262
Drive device for moveable furniture component
Drive device for a movable furniture component, particularly for a drawer, comprising an ejection device having an ejection force accumulator for ejecting the movable furniture component into an open position, and a retraction device having a retraction force accumulator for retracting the movable furniture component from an open position into a closed position, wherein the ejection force accumulator can be charged by the retraction force accumulator during refraction of the movable furniture component.. .
10/02/14
20140294208
Light-based detection for acoustic applications
A light-based skin contact detector is described, including a boot having an index of refraction less than or equal to another index of refraction associated with skin at a frequency of light, a light emitter and detector coupled to the boot and configured to measure an amount of light energy reflected by an interface of the boot, and a digital signal processor configured to detect a change in the amount of light energy reflected by the interface.. .
10/02/14
20140293614
Lens and led light module having the same
A lens, which is integrally formed as a single piece, includes a base, a first light diffusion portion and a second light diffusion portion formed on the base. A receiving hole is defined in the second light diffusion portion.
10/02/14
20140293607
Lens module and led lighting module having the same
A lens module for divergently refracting light from an led includes a first lens and a second lens matching with the first lens. The first lens is received in the second lens, and the first lens is spaced from the second lens.
10/02/14
20140291711
Semiconductor light emitting device and package structure thereof
A semiconductor light emitting device and a package structure thereof are provided. The semiconductor light emitting device includes a substrate, an epitaxial structure layer, a first electrode, a second electrode and a patterned film structure.
09/25/14
20140288540
Eye surgery refraction correction
A planning device produces control data for a treatment device for eye surgery which produces at least one cutting surface in a cornea of the eye using a laser device. The planning device includes a calculation module for establishing a cornea cutting surface.
09/25/14
20140288379
Surgical access system and related methods
A surgical access system including a tissue distraction assembly and a tissue refraction assembly, both of which may be equipped with one or more electrodes for use in detecting the existence of (and optionally the distance and/or direction to) neural structures before, during, and after the establishment of an operative corridor to a surgical target site.. .
09/25/14
20140288378
Surgical access system and related methods
A surgical access system including a tissue distraction assembly and a tissue refraction assembly, both of which may be equipped with one or more electrodes for use in detecting the existence of (and optionally the distance and/or direction to) neural structures before, during, and after the establishment of an operative corridor to a surgical target site.. .
09/25/14
20140287254
Heat stable snal and snmg based dielectrics
A transparent dielectric composition comprising tin, oxygen and one of aluminum or magnesium with preferably higher than 15% by weight of aluminum or magnesium offers improved thermal stability over tin oxide with respect to appearance and optical properties under high temperature processes. For example, upon a heat treatment at temperatures higher than 500 c, changes in color and index of refraction of the present transparent dielectric composition are noticeably less than those of tin oxide films of comparable thickness.
09/25/14
20140286047
Transparent display backlight assembly
In embodiments of a transparent display backlight assembly, a backlight panel is operable as a transparent panel, and a light source generates light that the backlight panel directs from the light source to illuminate a display panel of a display device. Light refraction features refract and scatter the light, where the light refraction features are spaced for approximate transparency of the backlight panel and to illuminate the display panel.
09/25/14
20140286031
Lighting device for vehicles and production method thereof
The present invention relates to a lighting device for vehicles including at least one diffuser body suitable for receiving light emitted by a light source so as to diffuse the light externally to the body. The diffuser body includes a solid matrix of transparent polymer material which incorporates a plurality of bubbles or cavities, wherein the solid matrix performs the transmission of light within the body by subsequent reflections and wherein the bubbles perform the diffusion of light and the extraction thereof outside the body by subsequent refractions..
09/25/14
20140285650
Phase distribution measurement method and phase distribution measurement apparatus
A phase distribution measurement method inside a biological sample includes taking in an optical image of the sample formed by a microscope to form a plurality of images with different image contrasts; calculating a component corresponding to phase distribution of the sample and a component corresponding to other than the phase distribution, and dividing the component corresponding to the phase distribution by the component corresponding to other than the phase distribution to forma normalized phase component image; breaking down the phase component image into a plurality of frequency components; performing a deconvolution process to each of the frequency components using an optical response character corresponding to each, and calculating phase distribution of a refraction component and phase distribution of a structure component; and calculating phase distribution of the sample by compounding the phase distribution of the refraction component and the phase distribution of the structure component.. .
09/25/14
20140283905
Solar power brick
A solar power brick includes an optical guide layer, at least one solar cell, at least one electrical connection line and an outer frame. The optical guide layer and the solar cells are provided in the outer frame to combine as an integrated body.
09/18/14
20140275800
Surgical access system and related methods
A surgical access system including a tissue distraction assembly and a tissue refraction assembly, both of which may be equipped with one or more electrodes for use in detecting the existence of (and optionally the distance and/or direction to) neural structures before, during, and after the establishment of an operative corridor to a surgical target site.. .
09/18/14
20140275771
Viewing trocar with integrated prism for use with angled endoscope
Endoscopic light refraction imaging techniques are described for configuring a viewing trocar and/or angled endoscope with a light refracting element, such as glass and/or plastic prism for instance. The light refracting element can be utilized in and/or with the viewing trocar to refract (i.e., bend) light passing into the trocar through the trocar's window.
09/18/14
20140270811
Multi-channel optical receiving module
A multi-channel optical receiving module includes a first substrate disposed on a bench, optical fibers disposed in grooves of the first substrate, a first lens disposed on the first substrate and collimating optical signals through the optical fibers, a second substrate disposed on the bench at a side of the first substrate, a light receiving device disposed on the second substrate, a second lens disposed over the light receiving device, a mirror reflecting the optical signals between the first lens and the second lens, and a block fixing the mirror. The block includes through-holes transmitting the optical signals between the first and second lenses without refraction of the optical signals..
09/18/14
20140270672
Optical waveguide body
An optical waveguide body includes a first layer of optically transmissive material and a second layer of optically transmissive material in contact with the first layer. At least one of the first and second layers is tapered and the first layer has a first index of refraction and the second layer has a second index of refraction less than the first index of refraction and the first and second indices of refraction are both greater than about 1.0..
09/18/14
20140270667
Glass buffers
The present disclosure is directed to optical fibers having glass buffers. As such, some embodiments comprise an optical fiber having a core, a cladding, and a glass buffer.
09/18/14
20140270072
Grain size inspection of a gas turbine component by x-ray refraction
A system and method for inspecting a grain size of a cast alloy component while maintaining the structural integrity of the cast alloy component is disclosed. The method includes recording a radiographic image of the component, identifying areas of the component to be inspected, and locating one or more lines having a pre-determined length on the radiographic image at an area to be inspected.
09/18/14
20140268143
Method 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..
09/18/14
20140268060
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.
09/18/14
20140268056
Wavefront interactive refraction display
Embodiments of this invention generally relate to systems and methods for wavefront interactive refraction display and more particularly to systems and methods for capturing and displaying eye wavefront interactive refraction data based on the desired refractive state of the patient's eye.. .
09/18/14
20140266731
Wearable device assembly having athletic functionality
A wearable device assembly has a housing supporting a controller and a display. The display may comprise one or more light guides, where each guide is operatively coupled to an led.
09/18/14
20140265811
Led light bulb with a phosphor structure in an index-matched liquid
A liquid-filled led bulb including a base and a shell connected to the base forming an enclosed volume. The liquid-filled led bulb also includes a plurality of leds attached to the base and disposed within the enclosed volume.
09/11/14
20140255903
Durable glass articles for use as writable erasable marker boards
The invention relates to glass articles suitable for use as writable erasable marker boards. More particularly, disclosed is a strengthened glass article suitable for use as a writable erasable marker boards, wherein the glass sheet exhibits an ion exchanged glass having a front surface and a back surface and exhibiting a thickness of less than 2.0 mm and having a depth of layer (dol) greater than 20 microns and a surface compressive strength of at least 300 mpa.
09/11/14
20140251557
Retractable cord queue barrier system
A retractable cord queue barrier system uses a spring-biased pulley refraction mechanism acting on a stretchable cord. A constant-force coiled metal spring is used, such that the retraction force on the cord does not increase as the cord is extended—as it would for a helical spring governed by hooke's law.
09/11/14
20140251424
Solar cell
A solar cell is disclosed. The solar cell includes a semiconductor substrate, a conductive region formed at the semiconductor substrate and having a conductive type identical to or different from that of the semiconductor substrate, a passivation film formed on the semiconductor substrate so as to cover the conductive region, and an electrode electrically connected to at least one of the semiconductor substrate and the conductive region.
09/04/14
20140249624
Intraoperative estimation of intraocular lens power
Apparatus for performing intraocular implant surgery, including surgical apparatus for performing intraocular implant surgery, an autorefraction device associated with the surgical apparatus, wherein the autorefraction device is configured to perform autorefraction on the aphakic eye to provide one or more aphakic refraction measurements, and a processor connected to the autorefraction device, wherein the processor is configured to process the aphakic refraction measurements and provide the user of the apparatus with information regarding the power of the intraocular lens.. .
09/04/14
20140247489
Touch screen saver
A stack of laminated transparent lenses consists of two alternating optically clear materials in intimate contact. The materials are a plastic lens and clear adhesive.
09/04/14
20140247449
Athermal channeled spectropolarimeter
A temperature insensitive (athermal) channeled spectropolarimeter (csp) is described. The athermal csp includes a crystal retarder formed of a biaxial crystal.
09/04/14
20140246635
Cylinder-driven lifting mechanism of compaction machine and compaction machine
In one aspect of the disclosure, a cylinder-driven lifting mechanism of a compaction machine includes a cylinder having a first end and a second end, a fixed pulley set, a movable pulley set, a rope having a head end, and a tail end configured to connect a compaction hammer. The first end of the cylinder is connected to a vehicle body of the compaction machine and the second end of the cylinder is connected to the movable pulley set.
08/28/14
20140240962
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
20140239202
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.
08/21/14
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
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
20140231238
Separation processes using divided columns
The claimed invention provides a technique wherein the two column system is combined into a single column. The light components are concentrated on the prefractionation side (feed side) of the column, where they are removed as an overhead top product.
08/21/14
20140230899
Module and method for producing thereof
A module, for example a photovoltaic module, includes among other things a glass plate (11) as a front cover facing the direction of light incidence, a component (photovoltaic element) (15), and a plastic layer (14) provided as an embedding material, wherein the surface of the glass plate (11) on the side facing the plastic layer (14) is treated such that the index of refraction of the layer produced by the surface treatment has a value between the index of refraction of the glass of the cover (11) and the index of refraction of the plastic material of the layer (14).. .
08/21/14
20140230893
Boron nitride anti-reflection coatings and methods
High performance photovoltaic devices are provided. Certain embodiments relate to the use of boron-nitride (bn) thin films as anti-reflection coating (arc) material on si and gaas solar cells.
08/14/14
20140225128
Light collecting module
A light collecting module includes a pliable light guide, an inner light source, and a photocell. A surface of the light guide has a first area, a second area, and a third area.
08/14/14
20140224637
Method for reducing energy consumption by thermal coupling
The claimed invention relates to a method for reducing energy consumption in a distillation process by using thermal coupling. Embodiments of the claimed invention are directed to the inclusion of a side reboiler and a partial condenser in the prefractionation section of a first column, which in turn helps to uniformly distribute the vapor liquid traffic between a first column and a second column..
08/07/14
20140220283
Screen saver
A stack of laminated transparent lenses consists of two alternating optically clear materials in intimate contact. The materials are a plastic lens and clear adhesive.
08/07/14
20140219619
Adapter and methods for cleaning an optical junction and reducing optical back reflection
An adapter includes a housing with opposed openings for receiving a first connector that is mechanically and optically mateable with a second connector to form one or more optical signal communication links. The housing is arranged with a slot for receiving a flexible material having an index of refraction that approximates the index of refraction of aligned pairs of optical fibers.
08/07/14
20140219054
Method of first arrival picking of seismic refraction data
The method of first arrival picking of seismic refraction data is embodied in software that uses the τ-p transform on energy-ratio seismic records. First, the seismic shots are gathered.


Popular terms: [SEARCH]

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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