|| List of recent Refract-related patents
|High temperature vacuum furnace heater element support assembly|
An electrical insulating and heating element support assembly for a high temperature vacuum furnace having a threaded support rod for connecting a heating element to the insulated hot-zone support ring in an electrically non-connected position includes insulator sleeves and washers surrounding the rod in contact with a series of refractory metal washers which may include graphite and/or molybdenum as shielding liners used to protect electrical insulators from having electrical short path means due to deposition of conductive materials onto the non-conducting insulators, and the use of threaded nuts and bushings to anchor the rod and shielding arrangement within the furnace hot zone. The non-conducting insulators and washers are made from materials with high thermal and electrical resistance, such as preferably alumina or mullite, and radially surround the support rod and the heating element.
|Image pickup element and image pickup apparatus|
An image pickup element includes: light-receiving elements, a pair thereof in a row direction outputting pixel signals forming a pair of captured images that have parallax of an object, a group of light-receiving elements being formed by a central light-receiving element being disposed between the light-receiving elements in the pair; a microlens that refracts light from the object and causes the light-receiving elements to receive the light; a color filter that transmits light in accordance with color and is one of r, g, and b for each pair of light-receiving elements, r/g or b/g alternating in the row direction, and a different color being disposed for the pair and the central light-receiving element; and wiring, between the light-receiving elements in the row direction, that transmits i/o signals of the light-receiving elements. The microlens is a cylindrical lens that extends in the column direction and covers the group of light-receiving elements..
|Low profile camera and vision sensor|
A camera configured for a predetermined environment can be made low profile in the following manner. The camera includes an image sensor that has a light sensitive portion that can sense light from the predetermined environment.
|Multimode optical transmission system employing modal-conditioning fiber|
A multimode optical fiber transmission system that employs an optical fiber with at least one modal-conditioning fiber is disclosed. The system includes a single-mode transmitter that generates modulated light having a wavelength between 800 nm and 1600 nm; an optical receiver configured to receive and detect the modulated light; a multimode optical fiber that defines an optical path between the single-mode transmitter and the optical receiver, the multimode optical fiber having a core with a diameter d40 and a refractive index profile configured to optimally transmit light at a nominal wavelength of 850 nm; and at least one modal-conditioning fiber operably disposed in the optical path to perform at least one of modal filtering and modal converting of the optical modulated light..
Corning Optical Communications Llc
|Device for electro-optical sampling of a microwave frequency signal|
A device for electro-optical sampling of a microwave frequency signal is disclosed. In one aspect, the device includes a microwave transmission line for transmitting a microwave signal, the microwave line including an interruption zone configured to be rendered conducting under the effect of an optical control signal so as to carry out a function of optically controlled interrupter switch.
Université Pierre Et Marie Curie (paris 6)
|High temperature thermoelectrics|
In accordance with one embodiment of the present disclosure, a thermoelectric device includes a plurality of thermoelectric elements that each include a diffusion barrier. The diffusion barrier includes a refractory metal.
Marlow Industries, Inc.
|Method for manufacturing semiconductor light emitting apparatus and semiconductor light emitting apparatus|
A method for manufacturing a semiconductor light emitting apparatus includes causing a semiconductor light emitting device and a mounting member to face each other. The semiconductor light emitting device includes a stacked structure unit including a first semiconductor layer, a second semiconductor layer, and a light emitting layer provided between the first semiconductor layer and the second semiconductor layer, a first electrode provided on a major surface of the stacked structure unit to connect to the first semiconductor layer, a second electrode provided on the major surface of the stacked structure unit to connect to the second semiconductor layer, and a dielectric stacked film provided on the first semiconductor layer and the second semiconductor layer of the major surface not covered by the first electrode and the second electrode, formed of stacked dielectric films having different refractive indexes, and including a protruding portion erected on at least a portion of a rim of at least one of the first and second electrodes.
Kabushiki Kaisha Toshiba
Provided is a display device that even in the case where microlenses are formed to increase the light extraction efficiency, can decrease damage on an oled caused by the production of the microlenses. The display device includes a first substrate; light emitting elements provided on the first substrate and located in correspondence with pixels arrayed in a matrix; a second substrate; a light collection layer provided on the second substrate and including, on the side facing the light emitting elements, at least one convex lens in correspondence with each of the pixels; and a light-transmissive layer that is provided between the first substrate and the second substrate so as to be in contact with the lens and has a refractive index lower than that of the light collection layer..
Japan Display Inc.
|Optical information recording medium and recording/reproducing device|
An optical information recording medium has: a recording layer; a super-resolution functional layer; and a protective layer. Letting n be the refractive index of the protective layer with respect to a laser beam focused by a focusing optical system, λ, be the wavelength of the laser beam, and ds be the depth of recording marks, when the super-resolution functional layer is irradiated by the focused laser beam, it forms a focused light spot including central light that irradiates the recording marks and peripheral light that irradiates a region outside the central light.
Mitsubishi Electric Corporation
Implementations disclosed herein allow a signal detected by a magnetoresistive (mr) sensor to be improved by providing for one or more alloyed layers that each includes a ferromagnetic material and a refractory material. The alloyed layers are provided adjacent to a shield element or between soft magnetic layers of the sensor stack..
Seagate Technology Llc
Improvements in tir-based optical touch systems of projection-type
A touch-sensitive apparatus operates by light frustration (ftir) and comprises a light transmissive panel (1) that defines a front surface (5) and a rear surface (6), light emitters optically connected to the panel (1) so as to generate light that propagates by total internal reflection inside the panel, and light detectors (3) optically connected to the panel (1) so as to define a grid of propagation paths inside the panel (1) between pairs of light emitters and light detectors (3). Each light detector (3) is optically connected to the panel (1) via an angular filter (20).
Flatfrog Laboratories Ab
Dynamically calculated refractive index for determining the thickness of roofing materials
Disclosed is a system for measuring and controlling the thickness of asphalt roofing materials during manufacturing. Light beams are used to generate a time of flight signal that is used to determine the thickness of the asphalt roofing layer.
Tamko Building Products, Inc.
Spatial light modulator including nano-antenna electrode and display apparatus including the spatial light modulator
A spatial light modulator including an electrode having a nano-antenna structure, and a display apparatus including the spatial light modulator are provided. The spatial light modulator includes a refractive index changing layer, and a pixel electrode and a common electrode which are configured to apply an electric field to the refractive index changing layer, and at least one of the pixel electrode and the common electrode include a nano-antenna pattern structure configured to resonate light..
Samsung Electronics Co., Ltd.
Lens for myopic eye
An ophthalmic lens element includes an upper distance viewing zone and a lower near viewing zone. The upper distance viewing zone includes a central region with a first refractive power for clear distance vision and peripheral regions that are relatively positive in power compared to the first refractive power.
Brien Holden Vison Institute
Multifocal ophthalmic lens
A multifocal ophthalmic lens, comprising a far vision (“fv”) area and a near vision (“nv”) area. When a value attained by subtracting the refractive power of said fv area from the refractive power of said nv area is an addition power add, an average surface power d11 of said fv area and an average surface power d12 of the nv area of a surface on a side of the object (“front surface”), and an average surface power d21 of said fv area and an average surface power d22 of a surface on a side of the eye (“back surface”), satisfy the relationship d21−d22=add−(d12−d11), wherein d11 and d12 satisfy the relationship d12-d11>add, wherein said front surface has a toric component with a cylinder value greater than 0.25 d in modulus; and wherein said front surface has an inflection point and/or a plateau..
Essilor International (compagnie Generale D'optique
Optical imaging system for pickup
An optical imaging system for pickup, sequentially arranged from an object side to an image side, comprising: the first lens element with positive refractive power having a convex object-side surface, the second lens element with refractive power, the third lens element with refractive power, the fourth lens element with refractive power, the fifth lens element with refractive power; the sixth lens element made of plastic, the sixth lens with refractive power having a concave image-side surface with both being aspheric, and the image-side surface having at least one inflection point.. .
Largan Precision Co., Ltd
A lens assembly includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens is with refractive power and includes a convex surface facing the object side.
Ao Ether Corporation
Optical lens for image pickup
This invention discloses an optical lens for image pickup, in order from an object-side to an image-side including a first lens, a second lens, a third lens and fourth lens. The first lens has positive refractive power.
Smart ar coated grin lens design collimator
Anti-reflective (ar) coating on the back side of the grin lens with a specific coating performance to match the index of refraction of fiber glass, such as 1.47, and then to select an index matching resin to join the components with the same index of refraction as the rear ar coated lens and fiber in the ferrule, such as 1.47 again, thus to provide virtually lossless cavity, where n1, n2 and ng are all the same, so reflective loss (rl) is almost infinite and no fabry perot effects are observed.. .
Advanced Fiber Products, Llc
Multimode optical fiber and system including such
A multimode optical fiber comprising: a core with a diameter d40 and a refractive index profile configured to optimally transmit light at a wavelength λ1=850 nm and to propagate lp01 mode at another wavelength λo, where λo>950 nm, the multimode fiber has a lp01 mode field diameter lp01mfdmmλ0 and 8.5 μm<lp01mfdmmλ0<11 μm.. .
Optical fiber and optical fiber silica glass base material
An optical fiber silica glass base material comprising a core formed of silica glass doped with a positive dopant that increases a refractive index; an intermediate layer adjacent to the core and surrounding the core on a radial outside thereof; a trench layer adjacent to the intermediate layer, surrounding the intermediate layer on a radial outside thereof, and formed of silica glass doped with a negative dopant that decreases a refractive index; and a cladding layer adjacent to the trench layer, surrounding the trench layer on a radial outside thereof, and formed of silica glass. Thickness of the intermediate layer in a radial direction is greater than thickness of the trench layer, and a region of the intermediate layer nearer the core is more heavily doped with the positive dopant and/or a region of the intermediate layer nearer the trench layer is more heavily doped with the negative dopant..
Shin-etsu Chemical Co., Ltd.
Front light guide module and electrophoresis display having the same
A front light guide includes a light guide plate, a light source, a functional material layer and a first adhesive layer. The light guide plate has a side surface, a first surface and a second surface opposite to the first surface.
E Ink Holdings Inc.
Light guide plate, dual-view backlight module and dual-view display device
A light guide plate, a dual-view backlight module having the light guide plate and a dual-view display device having the dual-view backlight module are provided. A lower surface of the light guide plate includes at least one v-shaped groove configured to reflect a light ray, which is incident onto the lower surface of the light guide plate from sides thereof, onto an upper surface of the light guide plate by sides of the at least one v-shaped groove, the reflected light ray leaving the light guide plate from the upper surface thereof.
Boe Technology Group Co., Ltd.
Image capturing element and image capturing apparatus
[solving means] an image capturing element according to an embodiment of the present technology includes an on-chip lens, a low refractive index layer and an infrared absorption layer. The on-chip lens is composed of a high refractive index material.
Nanoporous layers for optical applications
The invention relates to a layer structure comprising a substrate layer and a layer, which comprises a plurality of silicon oxide particles, wherein said silicon oxide particles have a positively charged surface (a pcs layer), which pcs layer is at least partially superimposed to the substrate layer and wherein the refractive index of the pcs layer is less than 1.2, a process for preparing the layer structure having a substrate and a pcs layer, a layer structure obtainable by the process, an optical device comprising the layer structure and the use of a pcs layer.. .
Ilford Imaging Switzerland Gmbh
Anti-glare and anti-sparkle transparent structures
A distortion-reducing anti-glare (drag) structure is disclosed, wherein the drag structure includes first and second transparent mediums. The first transparent medium has a first refractive index and a first light-scattering anti-glare (ag) surface.
Decomposing full-waveform sonic data into propagating waves for characterizing a wellbore and its immediate surroundings
A method for estimating parameters of a propagating wave field, such as the direction of propagation in 3d space of an acoustic wave from borehole-acoustic data. The estimation technique uses phase delays between recordings made by the individual receivers related to a plane wave travelling across the receiver array.
Image sensor and measuring refractive index
An image sensor and method for measuring a refractive index of a material includes a semiconductor substrate having an exposed surface for facing the material, an array of pixels on the semiconductor substrate spaced from the exposed surface, and a light source on the semiconductor substrate configured to emit light into the semiconductor substrate toward the exposed surface to reflect the light off the exposed surface toward the array of pixels, wherein the array of pixels detect the light reflected by the exposed surface for calculating the refractive index of the material.. .
Semiconductor Components Industries, Llc
Method and measuring device for continuously measuring the abbe number
Nd=refractive-index of process liquid to measure at 589.3 nm; nf=refractive-index at 486.1 nm; and nc=refractive-index at 656.3 nm.. .
Optical device utilizing fiber bragg grating and narrowband light with non-bragg wavelength
In certain embodiments, an optical device and a method of use is provided. The optical device includes a fiber bragg grating having a substantially periodic refractive index modulation along a length of the fiber bragg grating.
The Board Of Trustees Of The Leland Stanford Junior University
A sensor is provided, with the sensor including a reflective element and an optical fiber positioned relative to the reflective element such that light emitted from the optical fiber is reflected by the reflective element and propagates in an optical cavity between the optical fiber and the reflective element. A first material is within the optical cavity and has a coefficient of thermal expansion and a thickness that compensate a refractive index change with temperature of a second material within the optical cavity..
The Board Of Trustees Of The Leland Stanford Junior University
Method and combusting fuel and burner therefor
Method and burner for combusting a main fuel with a main oxidizer, whereby flows of the main fuel and the main oxidizer are injected via an injector end, comprising at least one metallic injector, said injector end being positioned in the upstream section of a main passage of a refractory block and whereby multiple jets are injected into the downstream section of the main passage to increase mixing and turbulence of the flows of the main fuel and the main oxidizer.. .
L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude
A catalytic burner includes a porous diffuser member and a porous distributor member. At least one seal extends between the porous diffuser member and the porous distributor member thereby defining an oxidation chamber.
3m Innovative Properties Company
Corrosion resistant object with alloying zone
This invention relates to objects having a corrosion resistant surface improving the overall corrosion resistance of the object relative to the core material, preferably being titanium or titanium based. The surface layer preferably contains at least 80% by mass of a refractory metal such as tantalum, or an alloy based on one or more refractory metals, to ensure a good adhering of the surface to the base material an alloy layer is created between a core element and the surface layer having a thickness at least twice that of the surface layer, where the alloy layer itself has corrosion resistant properties..
Danfoss A/s Tantalum Technologies
Printing form precursor having elastomeric cap layer and a preparing a printing form from the precursor
The invention pertains to a printing form precursor, a method of preparing a printing form from the precursor, and a process of preparing the precursor. The printing form precursor includes a photopolymerizable layer, an elastomeric layer having at least an elastomeric binder and particulate, and an actinic radiation opaque material on, adjacent, or disposed above the elastomeric layer opposite the photopolymerizable layer.
E I Du Pont De Nemours And Company
Method of performing sacroiliac fusion
A method of performing an orthopedic procedure in a sacroiliac region. At least a portion of an undercutting system is inserted at least partially into an aperture in at least one of an ilium and a sacrum.
Zyga Technology, Inc.
Equivalent phantom and evaluating quality of x-ray talbot imaging apparatus with the same
An equivalent phantom is used for an x-ray talbot imaging apparatus which includes an x-ray source, a plurality of gratings and an x-ray detector. The apparatus captures at least a moire image from which a differential phase image of an object is generated.
Konica Minolta, Inc.
A bendable end-effector is described, used in endoscopic surgery which requires very large refraction angle, being capable of obtaining large internal space, as well as, transmitting safely a torque to a surgical instrument in curved state. The bendable end-effector includes a fixing block coupled at a driving unit, a bendable block coupled to the end of the fixing block and bending to a user's desired direction and angle, and a surgical instrument coupled to the end of the bendable block..
Koh Young Technology Inc.
Image pickup apparatus
Provided is an image pickup apparatus including a zoos lens and a solid-state image pickup element. The zoom lens includes a first lens unit having a negative refractive power, an aperture stop, and a second lens unit having a positive refractive power.
Canon Kabushiki Kaisha
The present invention relates to a solar collector or a light collector by means of which light, generally sunlight, can be directed onto an energy conversion unit. In particular, it relates to a light collector (10) that has an optical unit (20) and an energy conversion unit, wherein the energy conversion unit is comprised of a number of conversion cells (12, 14, 16) that are located along a first main axis, wherein the optical unit (20) triggers a refraction of light and surrounds the energy conversion unit at least partially, and the optical unit (20) focuses parallel incident light in a focal area, wherein the focal area has its largest dimension along a second main axis and the second main axis extends along the first main axis..
Doci Innovations Gmbh
Cmos image sensor including color microlens, and manufacturing same
The present invention relates to a cmos image sensor including a color microlens, in which the color characteristics of a microlens are improved by replacing a microlens made of a transparent material with a material having characteristics similar to those of a color filter, and a manufacturing method thereof. In accordance with the cmos image sensor including a color microlens and the manufacturing method thereof according to the present invention, color characteristics is improved.
Siliconfile Technologies Inc.
Image sensing device
An image sensing device includes: a semiconductor substrate with a photo-sensing element; a passive layer disposed over the semiconductor substrate, having a first refractive index; a color pattern disposed over the passive layer, wherein the color pattern aligns to the photo-sensing element and has a color selected from the group consisting of red (r), green (g), blue (b), and white (w), and a second refractive index; and an electromagnetic wave guiding element disposed in at least one of the color pattern and the passive layer, having a third refractive index, and the third refractive index is greater than the first refractive index or the second refractive index, and a first difference between the third refractive index and the first refractive index is at least 0.2, and a second difference between the third refractive index and the second refractive index is at least 0.2.. .
Visera Technologies Company Limited
3d image display device and 3d image display method
A 3d image display device includes an image projection unit for projecting a first image; a first polarization unit disposed on a projection path of the first image for linearly polarizing the first image to have a first linear polarization direction; a lens array disposed on the projection path of the first image for refracting an image having a second linear polarization direction, the second linear polarization direction being different from the first linear polarization direction; a first quarter-wave plate disposed on the projection path of the first image for converting polarization direction of an image between a linear polarization direction and a circular polarization direction; and a reflection unit disposed on the projection path of the first image for reflecting the first image transmitted from the first quarter-wave plate back to the first quarter-wave plate.. .
Au Optronics Corp.
Color separation devices and image sensors including the same
Color separation devices, and image sensors including the color separation devices and color filters, include at least two transparent bars that face each other with a gap therebetween. Mutually-facing surfaces of the at least two transparent bars are separated from each other by the gap such that the at least two transparent bars allow diffraction of visible light passing therebetween.
Samsung Electronics Co., Ltd.
Zoom lens, optical apparatus and manufacturing the zoom lens
Provided is a zoom lens (zl) including, in order from an object along an optical axis: a first lens group (g1) having negative refractive power; a second lens group (g2) having positive refractive power, and a third lens group (g3) having a positive refractive power. At least the first lens group (g1) and the second lens group (g2) are moved along the optical axis upon zooming from a wide-angle end state to a telephoto end state, so that the distance between the first lens group (g1) and the second lens group (g2) decreases, and the distance between the second lens group (g2) and the third lens group (g3) increases, the first lens (g2) includes one positive lens, and the second lens (g2) includes one negative lens..
Variable magnification optical system, optical device, and production variable magnification optical system
Composing, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having positive refractive power and a fifth lens group; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group, a distance between the third lens group and the fourth lens group and a distance between the fourth lens group and the fifth lens group being varied, and predetermined conditional expression being satisfied, thereby providing a small-size variable magnification optical system having a high zoom ratio and a high optical performance, an optical apparatus, and a method for manufacturing the variable magnification optical system.. .
Lens module and image apzoom lens
A zoom lens including a first lens group, a second lens group, and a third lens group is provided. The first lens group is disposed between an object side and an image side and has at least one aspheric surface.
Young Optics Inc.
A lens assembly includes a first lens group, a stop and a second 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 includes a first lens and a second lens, wherein the first lens is with negative refractive power and the second lens is with positive refractive power.
Asia Optical International Ltd.
Imaging lens composed of six optical elements
A compact low-profile low-cost imaging lens with an f-value of 2.4 or less which offers a wide field of view and corrects aberrations properly. It includes elements arranged from an object side: a first positive lens having a convex surface on the object side as a first optical element; a second negative lens having a concave surface on an image side as a second optical element; a third positive lens as a third optical element; a fourth negative lens as a double-sided aspheric lens having a convex surface on the image side as a fourth optical element; and a fifth lens as a double-sided aspheric lens having a concave surface on the image side as a fifth optical element.
Kantatsu Co., Ltd.
Optical system and image pickup apparatus including the same
Provided is an optical system, which retains enhanced optical performance at any object distance, and has compact and light-weight focus lens units. Provided is an optical system including a plurality of lens units, in which an interval between adjacent lens units changes during focusing, the optical system including: a positive lens unit arranged closest to an object side; first and second focus lens units having negative refractive powers configured to move during focusing; and an intermediate lens unit having a positive refractive power and arranged between the first and second focus lens units.
Canon Kabushiki Kaisha
Method for production of optical waveguides and coupling and devices made from the same
Novel processing methods for production of high-refractive index contrast and low loss optical waveguides are disclosed. In one embodiment, a novel waveguide is produced by first depositing or growing a first low refractive index material layer as a cladding layer on top of a base substrate.
Provided is an optical element having an optical waveguide region that can propagate azimuthally polarized light or radially polarized light while maintaining the direction of polarization. The optical element has a resin layer and an optical waveguide region that is formed in the resin layer and guides light in the lengthwise direction of the resin layer.
Citizen Holdings Co., Ltd.
A light emitting element and a taper rod having the area of its emission plane larger than that of its incidence plane are provided, and a transparent resin is filled between the light emitting element and the taper rod. At least part of the taper rod has a refractive index higher than that of the transparent resin..
Cabinet capable of guiding light
A cabinet capable of guiding light, which is used for detecting a biological sample strained with a fluorescent dye, includes a main body, at least one light source, and at least one light guiding structure. The main body has a sample table to place the biological sample.
Smobio Technology, Inc.
Optical film for reducing color shift and organic light-emitting display device employing the same
Optical films, and organic light-emitting display devices employing the same, include a high refractive index pattern layer including a lens pattern region and a non-pattern region alternately formed, wherein the lens pattern region includes a plurality of grooves each having a depth larger than a width thereof, and the non-pattern region has no pattern; and a low refractive index pattern layer formed of a material having a refractive index smaller than a refractive index of the high refractive index pattern layer, wherein the low refractive index pattern includes a plurality of filling portions filling the plurality of grooves.. .
Cheil Industries Inc.
Anti-reflective film having superb optical characteristics
Provided is an anti-reflective film having a stacked structure comprising a transparent substrate, a high refraction layer and a low refraction layer, and more specifically, the low refraction layer may comprise, as a binder, a siloxane compound synthesized by reacting alkoxysilane and organosilane having a fluoroalkyl group.. .
Lg Hausys, Ltd.
Retardation film, polarizing plate and liquid crystal display
(wherein nx represents a refractive index in the slow axis direction in the film plane, ny represents a refractive index in the direction perpendicular to the slow axis in the film plane, nz represents a refractive index in the thickness direction of the film, and d represents a film thickness (nm), respectively).. .
Seismic data processing
Described herein are implementations of various technologies for a method for processing seismic data corresponding to a region of interest. The method may receive the seismic data.
Fiber optic sensor and detecting shock wave pressure and mass velocity in solid media
A fiber optic pressure and mass velocity sensor for measuring a shock wave pressure in a solid media includes an optical fiber having a means for measuring a change in an optical path length (opl) of the fiber when positioned in the solid media caused by the shock wave altering the physical length of the fiber and the refractive index of the fiber. The means for measuring the change in the opl is coupled at one end to a laser and at its second end to a means for detecting the change in opl.
The Government Of The United States Of America As Represented By The Secretary Of The Navy
Dynamic measurement of density using terahertz radiation with real-time thickness measurement for process control
A method of determining a density of a roller compacted ribbon is disclosed. The method comprises compacting dry pharmaceutical powder between press rollers of a roller compactor to produce a compact ribbon.
Electronic field enhancement element, analysis device, and electronic apparatus
An electronic field enhancement element includes: a metal layer; a dielectric layer provided on the metal layer; and a plurality of fine metal structures provided on the dielectric layer. A refractive index n of the dielectric layer satisfies n′=n+iκ and is in a range of 1≦n<1.46, wherein a complex refractive index of the dielectric layer is n′, an imaginary unit is i, and an extinction coefficient is κ..
Seiko Epson Corporation
A locally resolved pressure measurement
A method and an apparatus for the locally resolved pressure measurement along a pressure region (15), wherein it is proposed according to the invention that by using a glass optical fibre (11) comprising an optical fibre core (11″), an optical fibre cladding (11′), and an outer protective coating (16) and extending inside a tubular enclosure (6) in the longitudinal direction of the enclosure (6), a pressure acting isotropically on a length section of the tubular enclosure (6) arranged along the pressure region (15) is transformed into an asymmetric pressure load on the region of the optical fibre cladding (11′) situated within the length section, wherein the double refraction caused by the asymmetric pressure load in this length section is detected by using a reflection measurement along the optical fibre (11), and the pressure acting on the length section is determined from the asymmetric pressure load determined in this manner. The invention thus allows performing a locally resolved pressure measurement along the optical fibre (11) and determining the progression of pressure along the tubular enclosure (6) arranged in the pressure region (15) in a cost-effective manner..
Fct Fiber Cable Technology Gmbh
Method and system for simultaneous measurement of strain and temperature utilizing dual core fiber
There is provided a system for measuring temperature and strain simultaneously utilizing brillouin scattering within an optical fiber. The system has a cladding, a first optical core within the cladding and a second optical core within the cladding and having a different refractive index profile and/or composition than the first core.
Oz Optics Ltd.
Optical property measurement apparatus and optical property measurement method
An apparatus enabling abnormality detection of a sample. A first interference optical system scans the sample with first signal light from a first sample optical path, making the first signal light interfere with first reference light from a first reference optical path, to detect first interference light.
The University Of Electro-communications
Frame assembly for striker-fired pistol
A frame assembly for facilitating disassembly of a striker-fired pistol is disclosed. The frame assembly facilitates removal of the slide from a striker-fired pistol without trigger manipulation and with minimized potential for a round to be chambered.
Sig Sauer, Inc.
Refractory cooking chambers
A refractory oven includes pieces of refractory material having complementary slots and protrusions shaped and positioned for assembly into an open-ended box that defines a cooking chamber of the refractory oven. The pieces of refractory material can be slab-shaped and flat-packed in a kit for later assembly.
Multiple beam shaping illumination system
The invention provides a multiplicity of light sources—such as a planar array of leds—and a corresponding multiplicity of primary optic lenses, the primary optic lenses being curved and positioned to narrow a source light beam emitted from each of the light sources, and a beam shaper—which could be a beam shaping micro-refractive film or films, or a segmented refractor lens with multiple facets—that is shaped and positioned to receive a light source distribution emitted from the multiplicity of primary optic lenses and to emit an output light path having an angle of distribution different than a corresponding angle of the light source distribution.. .
Robert Bosch Gmbh
Nematic liquid crystal composition
Provided is a liquid crystal composition that has a positive dielectric anisotropy (Δε) and a refractive index anisotropy (Δn) adjusted to a desired level, and sufficiently low viscosity (η) without degrading the nematic phase temperature range. The liquid crystal composition having positive dielectric anisotropy comprises one or more compounds selected from compounds represented by general formula (lc0) and one or more compounds selected from the group of compounds represented by general formula (lc1) to general formula (lc5), wherein the liquid crystal composition comprises a compound in which at least one of y01 to y41 in general formula (lc0) to general formula (lc4) represents a fluorinated c2-c5 alkyl, alkoxy, alkenyl, or alkenyloxy group..
High refractive index (meth) acrylates
Novel aromatic hydrophobic (meth)acrylate monomers of formula i having high refractive index (more than 1.55) are provided herein. The present invention further provides efficient and improved process for the preparation of aromatic hydrophobic monomers of formula (i), wherein the high refractive index property can be advantageously used to make light weight optical materials with high transparency.
Council Of Scientific & Industrial Research
Refractory metal boride ceramics and methods of making thereof
A composition having nanoparticles of a refractory-metal boride and a carbonaceous matrix. The composition is not in the form of a powder.
The Government Of The United States Of America, As Represented By The Secretary Of The Navy
Transparent pane with electrically conductive coating
A transparent pane having at least one transparent substrate and at least one an electrically conductive coating on at least one surface of the transparent substrate. The electrically conductive coating has at least two functional layers arranged one on top of another.
Saint-gobain Glass France
Silica aerogels and their preparation
Silica aerogels with improved properties are disclosed together with methods for synthesizing such aerogels. The improved properties include lower thermal conductivity (better insulating capacity), lower acoustic velocity, lower dielectric constant and improved ductility.
Massachusetts Institute Of Technology
Systems and methods for charging receptacle lock
Methods and apparatus are provided for a charging receptacle lock. The method includes receiving a speed of the vehicle, and receiving sensor data indicating a position of a door covering a receptacle associated with the charging system of the vehicle.
Gm Global Technology Operations Llc
Inorganic film and laminate
There are provided an inorganic film in which the light transmittance is not decreased also when the inorganic film is laminated on organic material such as a resin, and a laminate. An inorganic film 13 which comprises a refractive index gradient film 13a having a refractive index changing continuously from n1 to n2 (n1<n2) and being a functional film; and a refractive index gradient film 13b having a refractive index changing continuously from n3 to n4 (n4<n3) and being a functional film, and in which further, a difference between n2 and n3 is 0.1 or less..
Sekisui Chemical Co., Ltd.
Refractory component for lining a metallurgical vessel
In a metallurgical vessel used for handling molten metal, a preformed refractory component forms part of a refractory structure that covers the bottom wall and side wall of the metallurgical vessel. The preformed refractory component is generally cup-shaped and formed of high-temperature refractory materials..
North American Refractories Company
Image pickup element and image pickup apparatus
An image pickup element includes: light-receiving elements, arranged in row and column directions, that receive light from an object, two pairs of light-receiving elements forming a pair in the column direction and a pair in the row direction and outputting pixel signals forming two pairs of captured images that have parallax of the object; a microlens that refracts light from the object and causes the light-receiving elements to receive the light; a color filter, between the microlens and the light-receiving elements, that transmits light in accordance with color and is one of r, g, and b for each pair of light-receiving elements, r/g or big alternating in the row direction; and wiring, between the light-receiving elements in the row direction, that transmits an input signal or an output signal of the light-receiving elements. A color discrepancy in a left/right pair of captured images is thereby reduced..
Photographing optical lens assembly, image capturing unit and mobile device
A photographing optical lens assembly includes, in order from object side to 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 object-side surface being convex in a paraxial region thereof.
Largan Precision Co., Ltd.
Beam steering modulated vcsel
A vcsel can include: an electro-optic modulator between a lasing active region and a light emitting surface. The electro-optic modulator can include: an electro-optically active region; a modulator mirror region over the electro-optically active region; and at least one electrical insulator region separating the modulator mirror region into at least two separate modulator mirror cavities electrically isolated from each other, wherein each separate modulator mirror cavity and a longitudinally aligned portion of the electro-optically active region form an electro-optic modulator cavity.
Amplifying optical fiber and optical amplifier
The first cladding 52 has a two-layer structure formed of a solid inner layer 62a passed through the center axis of the first cladding 52 and an outer layer 62b enclosing the inner layer 62a and the plurality of cores 51 with no gap. A refractive index n1 of the core 51 is provided higher than refractive indexes n2a and n2b of the inner layer 62a and the outer layer 62b, the refractive indexes n2a and n2b of the inner layer 62a and the outer layer 62b are provided higher than a refractive index n3 of the second cladding 53, and the refractive index n2a of the inner layer 62a is provided lower than the refractive index n2b of the outer layer 62b..
National University Corporation Shimane University
Amplifying optical fiber and optical amplifier
A plurality of cores 51 is disposed around the center axis of a first cladding 52 in a state in which an inter-core distance Λ of cores adjacent to each other is equal, a refractive index n1 of the core 51 is provided higher than a refractive index n2 of the first cladding 52, and the refractive index n2 of the first cladding 52 is provided higher than a refractive index n3 of a second cladding 53. Moreover, 5.8≦Λ/mfd(2λc/(λc+λop))≦8 is satisfied, where the inter-core distance is defined as Λ, a mode field diameter of the core is defined as mfd, a cutoff wavelength is defined as λc, and a wavelength of communication light incident on the core 51 is defined as λop..
National University Corporation Shimane University
Photovoltaic device structure and method
The semiconductor device includes a semiconductor material structure in which a junction is formed and may incorporate a multi-layer anti-reflection coating. The anti-reflection coating is located on a light receiving surface of the semiconductor material structure and comprises a thin layer of thermal expansion mismatch correction material having a thermal expansion coefficient less than or equal to that of the semiconductor material, to provide thermal expansion coefficient mismatch correction.
Sputtering targets and methods
Multi-component sputtering target structures suitable for deposition of metallic alloy films are provided. The multi-component target may be formed by winding wires of different materials around a target support structure to form a dense winding.
Paradigm Shift Technologies Inc.