|| List of recent Refract-related patents
| Catheter balloon and balloon catheter|
A catheter balloon exhibiting improved pressure resistance of the entire membrane is formed of a membrane as a laminate of at least two layers including a polyamide elastomer layer and a polyamide layer, in which the polyamide elastomer layer is disposed at the inner side of the polyamide layer, a refractive index nr1 in the circumferential direction of a cross-section perpendicular to the axis in the inner side surface of the polyamide layer is greater than a refractive index nr2 in the circumferential direction of a cross-section perpendicular to the axis in the inner side surface of the polyamide elastomer layer, and the difference between the refractive index nr1 and the refractive index nr2 is 0.01 or greater.. .
| Dental restorative material|
The present invention discloses a dental restorative material comprising 10-50 mass % of (a) a polymerizable monomer, 5-80 mass % of (b) an organic-inorganic composite filler which is prepared by dispersing an inorganic fine filler having an average particle diameter of 1 μm or smaller in an organic matrix and has an average particle diameter of 5.0-50 μm, and 10-60 mass % of (c) a third component, i.e., an inorganic filler having an average particle diameter of 1.1-5.0 μm, wherein the absolute value of the difference between the refractive index [nc] of the inorganic filler (c) and the refractive index [nb] of the organic-inorganic composite filler (b) (i.e., . .
| [cu(thp)4]n[x]-n compounds for the treatment of a broad range of human solid tumors, including refractory tumors|
Cu(i) complexes of the type [cu(thp)4]n[x]−n, wherein thp is a tris(hydroxymethyl)phosphine, x is a counteranion, n=1-4, for the use as antineoplistic agents against solid tumors in humans.. .
| Method for processing semiconductors using a combination of electron beam and optical lithography|
Forming an alignment mark on a semiconductor structure using an optical lithography to form a metal alignment mark on a substrate of the structure, using the formed metal alignment mark to form a first feature of a semiconductor device being formed on the substrate using optical lithography, and using the formed metal alignment mark to form a second, different feature for the semiconductor using electron beam lithography. In one embodiment, the first feature is an ohmic contact, the second feature is a schottky contact, the metal alignment mark is a refractory metal or a refractory metal compound having an atomic weight greater than 60 such as tan and the semiconductor device is a gan semiconductor device.
| Multi-stage polymer composition and films and polarizer plates made therefrom|
A multi-stage polymer composition comprising a crosslinked core component, one or more intermediate layer components and an outermost layer component in which the refractive index of each of the crosslinked core, the one or more intermediate layers and the outermost layer are within 2% of the refractive index of each adjacent component; wherein the crosslinked core component comprises from 75 to 99.9 weight percent of units derived from at least one first monomer selected from the group consisting of alkyl, aryl, and cycloalkyl (meth)acrylate monomer, optionally from 1 to 20 weight percent of units derived from a second monomer selected from the group consisting vinyl monomers; and from 0.1 to 5 weight percent of units derived from cross-linking monomers, graft-linking monomers, or combination thereof, and has a tg of from −75 to −35° c.; wherein each of the one or more intermediate layer components comprises from 71 to 99.9 weight percent of units derived from a third monomer selected from the group consisting alkyl, aryl and cycloalkyl (meth)acrylate monomers, from 0 to 5 weight percent of units derived from a cross-linking monomer, graft-linking monomer, or combination thereof, optionally from 1 to 10 weight percent of units derived from one or more functional monomers, from 0 to 14 weight percent of vinyl monomers, and has a tg of from −35 to 100° c.; and wherein the outermost layer component comprises from 90 to 100 weight percent units derived from a fourth monomer selected from the group consisting of alkyl (meth)acrylate having from one to twelve carbon atoms, optionally from 0.5 to 10 weight percent of units derived from one or more functional monomers, and has a tg of from 80 to 130° c. Is provided.
| Wide-view optical film having reversed wavelength dispersion|
An optical compensation film is disclosed herein, which is made by uniaxially or biaxially stretching of a multilayer film including a first polymer film having a refractive index profile satisfying the equations of (nx+ny)/2≧nz and . .
| Automotive catalyst composites having a two-metal layer|
Provided are catalyst composites whose catalytic material is effective to substantially simultaneously oxidize carbon monoxide and hydrocarbons and reduce nitrogen oxides. The catalyst composites have a two-metal layer on a carrier, the two-metal layer comprising a rhodium component supported by a first support comprising a refractory metal oxide component or a first ceria-zirconia composite; a palladium component supported by a second support comprising a second ceria-zirconia composite; one or more of a promoter, stabilizer, or binder; wherein the amount of the total of the first and second ceria-zirconia composites in the two-metal layer is equal to or greater than the amount of the refractory metal oxide component.
| Liquid filled light distributor and a method of use|
The present invention relates to liquid filled light distributor comprising an elongated tubular body with a tube wall defining an in inner lumen filled with a liquid, said tubular body having—a proximal end closed by first closing means—a distal end closed by second closing means. Wherein the proximal end is arranged to be in optical communication with a light source and wherein the refractive index of the tube wall is n1 and the refractive index of the fluid is n2 and n1/n2<1 so that light from the light source travels along the longitudinal direction of the tubular body and that a part of the light is emitted through the tube wall along at least a part of the tubular body.
| Vertical optical coupler for planar photonic circuits|
Described herein are an apparatus, system, and method for providing a vertical optical coupler (voc) for planar photonics circuits such as photonics circuits fabricated on silicon-on-insulator (soi) wafers. In one embodiment, the voc comprises a waveguide made from a material having refractive index in a range of 1.45 to 3.45, the waveguide comprising: a first end configured to reflect light nearly vertical by total internal reflection between the waveguide and another medium, a second end to receive the light for reflection, and a third end to output the reflected light.
| Light source module using lasers as light source|
A light source module includes a double refraction prism, an optical plate, a first laser source, a second laser source, and a third laser source. A first laser beam emitted from the first laser source and a second laser beam emitted from the second laser source are mixed by the double refraction prism and these are mixed together with a third laser beam emitted from the third laser source by the optical plate..
| Lens, led backlight module and display device|
This invention is suitable for optical technology field. A lens, led back light module and display device are provided.
| Lens module|
A lens module with an optical axis passing therethrough from an object side to an image side includes a lens housing and two lenses disposed in the lens housing. The first lens has a first refract portion and a first positioning portion encircling the first refract portion.
| Subminiature optical system and portable device including the same|
There are provided a subminiature optical system having a miniature size and capable of obtaining a narrow view angle using only five sheets of lenses, and a portable device having the same. The subminiature optical system includes a first lens convex toward the object side and having positive refractive power.
| Imaging lens and imaging apparatus|
An imaging lens substantially consists of six lenses of a negative first lens, a negative second lens, a positive third lens, a positive fourth lens, a negative fifth lens and a positive sixth lens in this order from an object side. An object-side surface of the second lens has a shape having negative refractive power at a center, and including a part having positive refractive power in an area between the center and an effective diameter edge, and having negative refractive power at the effective diameter edge (concave shape facing the object side), and the refractive power at the effective diameter edge being weaker than the refractive power at the center.
| Endoscope objective lens|
An object is to provide an endoscope objective lens in which the aberrations are less susceptible to manufacturing errors and in which the variation in field curvature caused by focusing is small. There is provided an endoscope objective lens including: in sequence from an object side, a front group having negative refractive power, an aperture stop, and a rear group having positive refractive power; and a focusing lens that has a negative refractive power and that can be inserted into an optical path between the front group and the rear group.
| Optical system with catadioptric optical subsystem|
An optical system to form an image on an image plane includes, a catadioptric optical subsystem configured to collect light from an object plane; and a refractive optical subsystem configured to form the image on the image plane, the catadioptric and refractive optical subsystems being arranged in order from the object plane to the image plane along an optical axis of the optical system. A baffle to shut off light traveling toward the image plane without being reflected by the catadioptric optical subsystem is placed in the optical system, in order to form a shielded portion in a center of an exit pupil plane of the optical system, and the catadioptric optical subsystem includes a partially transparent surface around the optical axis of the optical system so that transmissivity of a region, other than the shielded portion, at the exit pupil plane varies in a radial direction of the exit pupil plane..
| Optical device|
An optical device (20) that comprises at least two refractive optical elements (1, 2) arranged along an optical axis (oa) of the device, each refractive optical element having a surface profile. The device has an optical aperture common to the at least two refractive optical elements and wherein at least one refractive optical element is arranged to rotate relative to another refractive optical element around a rotation axis which intersects the aperture of the device.
| Zoom lens|
A zoom lens includes a first lens group, a second lens group, a third lens group and a fourth lens group, all of which are arranged in sequence from an object side to an image side along an optical axis. The first lens group is with positive refractive power.
| Zoom optical system and imaging device having the same|
A zoom optical system has, in order from an object: a first lens group g1 having positive refractive power; a second lens group g2 having negative refractive power; a third lens group g3 having positive refractive power; and a fourth lens group g4 having negative refractive power, wherein the mutual distance between the lens groups g1 to g4 change upon zooming, and one of the third lens group g3 and the fourth lens group g4 includes at least one diffractive optical element pf.. .
| Switchable lens apparatus and method|
A switchable window apparatus capable of being placed in a transparent condition in which light passes through the window unobstructed, and in an obstructed condition in which light passing through the window is obstructed by an optical element in the window. The switchable window apparatus is placed in the transparent state by contacting a lens element with a material of matching refractive index, and placed in the obstructed state by contacting the lens element with a material with a non-matching refractive index..
| Projection optical assembly and projector device|
There is provided a projection optical system (1) that projects from a first image plane on a reducing side to a second image plane on an enlargement side, including a first refractive optical system (11) that includes eight lenses (l1) to (l8) and forms a first intermediate image (31) on the enlargement side using light that is incident from the reducing side, a second refractive optical system (12) that includes six lenses (l9) to (l14) and forms the first intermediate image (31) on the reducing side into a second intermediate image (32) on the enlargement side, and a first reflective optical system (20) that includes a first reflective surface (21a) with positive refractive power that is positioned closer to the enlargement side than the second intermediate image (32).. .
| Liquid crystal display device|
The present invention provides a liquid crystal display device, comprising: a light source, a light guide plate having a light-exiting surface, a substrate having a first surface and a second surface opposite to the first surface, a display area of the second surface comprising a pixel area and at least one non-pixel area, and a gap provided between the light-exiting surface of the light guide plate and the first surface of the substrate, wherein, at least one slot is provided on the light-exiting surface of the light guide plate; a part of the light generated by the light source and entering the light-exiting surface of the light guide plate, after being refracted by the slot and the gap sequentially, is refracted by the first surface of the substrate into the substrate, and then enters the pixel area. According to the present invention, it is able to change the light transmission path, thereby to effectively reduce the light entering a non-pixel area..
| Reflective liquid crystal display device and electronic apparatus provided therewith|
A reflective liquid crystal display device includes a first substrate provided with a reflective electrode, a second substrate provided with a transparent electrode, a liquid crystal layer disposed between the first substrate and the second substrate, and an anisotropic scattering member formed on the second substrate. The anisotropic scattering member has first and second surfaces each including a first refractive index region and a second refractive index region having a refractive index different from that of the first refractive index region.
| 2d and 3d switchable display device and liquid crystal lenticular lens thereof|
The present invention provides a liquid crystal lenticular lens including a first substrate, a second substrate, a liquid crystal layer, two first electrodes, two second electrodes, and a common electrode. The second substrate and the first substrate are disposed opposite to each other.
| Defect observation method and device therefor|
This invention relates to a method for performing an analysis of defective material and the refractive index, and a three-dimensional analysis of very small pattern shapes including the steps of imaging by a scanning electron microscope to acquire an image of the position of a defect under observation using information of inspection results obtained by an optical inspection device, creating a model of the defect by using the acquired image of the defect under observation, calculating the values detected by the detector when reflected and scattered light emitted from a defect model is received by the detector when light is irradiated onto the defect model thus created, comparing the detection values thus calculated and the values detected by the detector, which has received light actually reflected and scattered from the sample, to obtain information relating to the height of the defect under observation, the material, or the refractive index.. .
| Photon beam diffusion|
An efficient numerical method for accurately rendering translucent materials using photon beam diffusion is provided that can account for multilayer materials and directional incident and exitant effects at the surface. In an embodiment, refracted incident light is represented continuously as a photon beam instead of as discrete photons.
| Independent cushion extension and thigh support|
A vehicle seating assembly includes a seat frame. A first leg support is pivotally coupled with a forward portion of the seat frame.
| Solid state imaging device and imaging apparatus|
A solid-state imaging device has, in a semiconductor substrate, plural pds arranged two-dimensionally and signal reading circuits which are formed as mos transistors and read out signals corresponding to charges generated in the respective pds. Microlenses for focusing light beams are formed over the respective pds.
| Composite high reflectivity layer|
A high efficiency light emitting diode with a composite high reflectivity layer integral to said led to improve emission efficiency. One embodiment of a light emitting diode (led) chip comprises an led and a composite high reflectivity layer integral to the led to reflect light emitted from the active region.
| Nitride semiconductor light emitting device|
A nitride semiconductor light emitting device includes a substrate, a multi-layer structure, a light-transmitting concave-convex structure and a light emitting structure. The multi-layer structure has layers of a first layer and a second layer such that the first and second layers have different refractive indexes and are alternately stacked.
| Semiconductor light emitting device|
A semiconductor light emitting device includes a light-transmissive substrate, a light-transmissive buffer layer disposed on the light-transmissive substrate, and a light emitting structure. The light-transmissive buffer layer includes a first layer and a second layer having different refractive indices and disposed alternately at least once.
| Organic light-emitting panel and method for producing same|
An organic light-emitting panel includes a reflective electrode, a functional layer, having a single or multi-layer structure, located on the reflective electrode, an organic light-emitting layer located on the functional layer, a transparent electrode located above the organic light-emitting layer, a low refractive index layer located on the transparent electrode, and a first thin-film sealing layer located on the low refractive index layer. The low refractive index layer has a lower refractive index than both the transparent electrode and the first thin-film sealing layer.
| Photoelectric conversion device and fabrication method therefor|
A photoelectric conversion device comprises a high-refractive-index portion at a position close to a photoelectric conversion element therein. And, the high-refractive-index portion has first and second horizontal cross-section surfaces.
| Refractive body panels (vehicle refractive panels)|
Refractive body panels replace traditional metal or fiberglass panels and consist primarily of dyed and moldable plastic in a prism configuration under clear polycarbonate; a bi-layer unit working in concert to scatter and/or change the direction of light to illuminate the exterior and increase safety and performance; the bi-layer unit works together to reduce the weight of a vehicle; the dyed prism allows for panels in various colors: the panels attach to a vehicle's frame as a direct pre-market or post-market replacement (including polyurethane bumpers) and require minimal modifications to the structural design of foot-powered vehicles, motorcycles, cars, trucks, boats, etc.. .
| Nozzle exchange device and nozzle unit|
A nozzle unit for use in a nozzle exchange device in a continuous metal casting apparatus comprises a loading opening and guiding means for sliding the nozzle unit through said opening into casting position with respect to the nozzle exchange device, wherein said nozzle unit comprises a nozzle plate made of a refractory material clad in a metal can. In order to prevent said plate from being presented to the loading opening with the wrong orientation, i.e., with the trailing edge first, said plate is provided with at least one lug at or adjacent the trailing edge, said at least one lug disposed such that the loading opening allows engagement of the base of the nozzle plate but not of the at least one lug..
|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.
|Polycarbonate compositions having improved thermal dimensional stability and high refractive index|
Disclosed herein are methods and compositions of polycarbonate compositions having, among other characteristics, improved thermal dimensional stability, hydrolytic stability and high refractive index. The resulting polycarbonate copolymer composition, comprising a polycarbonate and a polysulfone, can be used in the manufacture of articles for optical applications.
|Organic light-emitting display and method of manufacturing the same|
An organic light-emitting display and a method of manufacturing the organic light-emitting display are disclosed. In one embodiment, the organic light-emitting display includes: i) a pixel electrode disposed on a substrate, ii) an opposite electrode disposed opposite to the pixel electrode, iii) an organic emission layer disposed between the pixel electrode and the opposite electrode; a light-scattering portion disposed between the substrate and the organic emission layer, including a plurality of scattering patterns for scattering light emitted from the organic emission layer in insulating layers having different refractive indexes.
|Modified polysilazane film and method for producing gas barrier film|
A modified polysilazane film comprising a substrate and a modified polysilazane layer formed thereon, and a method for producing a gas barrier film obtained through such intermediate material, wherein the modified polysilazane layer has a thickness of a value in the range of 10 to 500 nm, and the modified polysilazane layer has a refractive index of a value in the range of 1.48 to 1.63.. .
|Refractory vessels and methods for forming same|
The disclosure relates to methods of forming a vessel and to the resulting vessel. The vessel may be formed by providing a first fumed silica soot layer comprised of primary particles of fumed silica soot, and then providing over the first fumed silica soot layer a second fumed silica soot layer comprised of agglomerated particles formed into an agglomerated form from primary particles of fumed silica soot.
|Multi-core fiber and method of positioning of core of multi-core fiber|
A multi-core fiber for accommodating multiple single mode cores in one optical fiber is provided with multiple types of non-identical cores having different propagation constants. Each of the multiple types of non-identical cores includes a core part and a cladding part covering an outer periphery of the core part.
|High refractive index cladding material and electro-optical polymer optical waveguide|
There is provided an optical waveguide which has appropriate orientation properties, a production process of which is simple so as to be suitable for producing an electro-optical element, and is able to reduce power consumption of the element due to excellent electro-optical properties, and further can be formed into a thin film and be layered; and a material for the optical waveguide. A cladding material of an optical waveguide, characterized by comprising a polymer compound including a triarylamine structure, and a nonlinear optical compound; and an optical waveguide produced by using the cladding material..
|Wavelength modulation heterodyne light source|
The present invention discloses a wavelength modulation heterodyne light source, which comprises: a modulation unit, a wavelength modulated light source and a birefringent crystal. The modulation unit produces a triangular or sine wave modulating signal, and transmits the modulating signal to the wavelength modulated light source to generate a wavelength modulated light signal, then the modulated light signal is refracted by the birefringent crystal with two different optical paths caused by the two different refractivity of the crystal to generate a heterodyne light.
|Light projector and sensor|
A light projector has a light emitting device having a light emitting surface, an optical fiber having an incident end-face to which light emitted from the light emitting surface enters, and a lens arranged between the light emitting surface of the light emitting device and the incident end-face of the optical fiber. The light emitting device, the optical fiber and the lens are arranged on one optical axis.
A lighting device includes a light base, a light shade, a padding element, at least one light emitting element and a wavelength converting shell. The light shade is disposed on the light base and cooperating with the light base to define an accommodating space.
An illumination apparatus includes a transparent case, an opaque member, a ring-shaped light emitting device, and a ring-shaped transparent cover. The transparent case has a central region.
|Endoscope objective optical system|
Wherein df is the distance from a surface of the first lens facing the object side to the aperture stop, f is the focal length of the entire system, n1 is the refractive index of the first lens (d-line), n2 is the refractive index of the second lens (d-line), ih is the maximum image height of the entire system, r1 is the radius of curvature of a surface of the third lens facing the object side, r2 is the radius of curvature of the surface of the third lens facing the image side, and d1 is the center thickness of the third lens.. .
|Optical image capturing lens assembly|
An optical image capturing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface.
According to exemplary embodiments of the present invention, an imaging lens includes, in an ordered way from an object side, a first lens having negative (−) refractive power, a second lens having negative (−) refractive power, a third lens having positive (+) refractive power, a fourth lens having positive (+) refractive power, a fifth lens having negative (−) refractive power, and a sixth lens having negative (−) refractive power, wherein, a conditional expression of 0.5<y6/y10<0.55 is satisfied, where a height of a point 60% of a highest height of an image-forming surface is y6, a full size of an opposite angle within an active area of an image sensor is y10.. .
|Zoom lens system|
A zoom lens system that includes a first lens group including at least one lens and having a negative refractive power, and a second lens group including at least one lens and having a positive refractive power in an order from an object side to an image side, wherein the zoom lens system is configured to perform zooming by changing a distance between the first lens group and the second lens group and satisfies: 2<. .
|Dual-sided daylight redirecting film|
Dual-sided daylight redirecting films include an optical substrate with two solar light redirecting layers disposed on the major surfaces of the optical substrate. The light redirecting layers are microstructured surfaces forming a plurality of prism structures.
|Substrate provided with a multilayer coating having thermal properties, in particular for production of a heated glazing unit|
The invention relates to a substrate (10), especially a transparent glass substrate, equipped with a thin-film multilayer comprising, in alternation, “n” metallic functional films (40, 80, 120), in particular functional films based on silver or a metal alloy containing silver, and “(n+1)” antireflection coatings (20, 60, 100, 140), where n is an integer≧3, each antireflection coating comprising at least one antireflection film, so that each functional film (40, 80, 120) is located between two antireflection coatings (20, 60, 100, 140), characterized in that said multilayer comprises at least two high-refractive-index antireflection films (25, 145), each having a refractive index≧2.15 such that the antireflection coating (20) located under the first, starting from the substrate, functional film (40) and the antireflection coating located on the last, starting from the substrate, functional film each comprise at least one high-refractive-index antireflection film (25, 145) and each antireflection coating (60, 100) located between two functional films does not comprise a high-refractive-index film.. .
|Device for recording and reproducing holographic 3d image, and method for recording and reproducing holographic 3d image|
Devices and methods for recording and reproducing a holographic 3d image are provided. The devices for recording the holographic 3d image comprising: a laser generation unit for emitting a laser beam; a beam splitter unit configured to receive the laser beam from the laser generation unit and split the laser beam into a reference beam and an object beam directed to an object to be photographed; a photorefractive crystal configured to receive the reference beam from the beam splitter and the object beam diffused from the object to form a holographic 3d image; and a rotation unit configured to rotate the photorefractive crystal once every time one holographic 3d image is recorded.
|Balanced-detection spectra domain optical coherence tomography system|
A balanced-detection spectra domain optical coherence tomography system is disclosed. A light beam l emitting from the light source module is passed through the second beam splitter, the first beam splitter in series, and then split to the mirror and the sample respectively, and further simultaneously reflected to the first beam splitter, a light beam l1 and a light beam l2 are refracted by the first beam splitter and the second beam splitter respectively, and then transmitted to the first collimator and the second collimator respectively, and a phase difference between the light beam l1 and the light beam l2 is 180°.
|Enhanced scanning of transparent fibers|
An apparatus and methods for scanning and measuring transparent fibers. One example method includes placing the transparent fibers on a platen of a flat-bed style scanner and compressing the transparent fibers to the platen with a cover including a non-reflective surface adjacent to the transparent fibers.
|Multilayer mirror, method of producing a multilayer mirror and lithographic apparatus|
A multilayer mirror for use in device lithography is configured to reflect and/or pattern radiation having a wavelength in the range of about 6.4 nm to about 7.2 nm. The multilayer mirror has a plurality of alternating layers of materials.
|Photochromic lens for eye glasses|
[problem] to provide a photochromic lens for eye glasses, which has a high refractive index and excellent light-controlling properties and has such a constitution that the weight and thickness of the lens can be reduced. [solution] provided is a photochromic lens for eye glasses, which is produced by polymerizing a polymerizable composition prepared by dissolving a photochromic compound into a monomer mixture comprising a first radically polymerizable monomer represented by general formula (i), a second radically polymerizable monomer represented by general formula (ii) and divinylbenzene that has a purity of 50% or more and contains a divinylbenzene component and an ethylvinylbenzene component at a total content of 90% or more..
A display device includes a reflective image display unit having a sheet-like anisotropic scattering member. The sheet-like anisotropic scattering member has a surface in which both a low refractive index area and a high refractive index area exist.
|Polarizer and liquid crystal display including the same|
A polarizer includes a polyvinyl alcohol (pva) layer, a supporting layer, and a compensation layer. The supporting layer is disposed on the pva layer.