Abstract: The present invention concerns a method of processing marine gravity data and a processing apparatus for the same. According to the present invention, the processing method comprises obtaining an initial free-air anomaly per profile from raw data; obtaining a filtered free-air anomaly by filtering high-frequency components from the initial free-air anomaly; shifting free-air anomaly by correcting the filtered free-air anomaly based on a reference free-air anomaly; and showing a per-profile free-air anomaly using the reference corrected free-air anomaly.

Abstract: A motion sensing device includes an infrared radiation (IR) sensor configured receive signal IR from a warm object and background IR to produce a direct current output. A first transformation filter receives the direct current output and produces a filtered background. A second transformation filter receives the direct current output and produces a filtered signal. A rating compares the filtered signal and the filtered background to produce a result signal based on a detected difference between the filtered signal and the filtered background.

Abstract: According to the present invention, a method and a device for determining a physical quantity at a plurality of locations are provided. The method according to the invention comprises approaching the plurality of locations in a first predetermined direction, wherein at each location of the plurality of locations a first measured value of the physical quantity is measured, approaching the plurality of locations in a second predetermined direction substantially opposite to the first predetermined direction, wherein at each location of the plurality of locations a second measured value of the physical quantity is measured, and establishing a determination value for the physical quantity at a respective location of the plurality of locations based on the first and second measured values of the physical quantity which have been measured at the respective location.

Abstract: A multipurpose weather measurement instrument sensor system in which a fan circulates air past temperature and other sensors to ensure their accurate operation, a basin collects rainwater and precisely directs the rainwater into a tipping receptacle to measure the amount of rainwater collected per unit time and a wind speed gauge is provided with a counter-balanced toggle beam to product wobble-free rotation.

Abstract: The invention relates to nanoparticles having a core that is fully or partially formed by at least one UV-absorbing organic compound in crystallized form and coated with an outer layer formed by at least one hydrophilic polymer, said UV-absorbing organic compound(s) and hydrophilic polymer(s) being associated in a weight ratio of organic compound(s) to hydrophilic polymer(s) varying between 0.2 and 0.4.

Abstract: Provided is a lens array in which a plurality of convex lenses bidimensionally regularly-arranged along a predetermined reference face. The plurality of convex lenses is arranged so as to be inclined variedly mutually among the plurality of convex lenses around a vertex of a convex face of a reference posture as a rotation axis with respect to the reference posture mutually common to the plurality of convex lenses.

Abstract: There is provided a metal-based particle assembly comprising 30 or more metal-based particles separated from each other and disposed in two dimensions, the metal-based particles having an average particle diameter in a range of from 200 to 1600 nm, an average height in a range of from 55 to 500 nm, and an aspect ratio, as defined by a ratio of the average particle diameter to the average height, in a range of from 1 to 8, wherein the metal-based particle assembly has in an absorption spectrum for a visible light region a maximum wavelength of a peak at a longest side in wavelength, and an absorbance at the maximum wavelength is higher as compared with that of a reference metal-based particle assembly, on the premise that the numbers of the metal-based particles are the same. The metal-based particle assembly of the present invention presents significantly intense plasmon resonance.

Abstract: The present invention provides an antiglare film that has a thin antiglare layer and suppresses generation of scintillation and white muddiness at significantly high levels, while maintaining the hard-coating property and antiglare property, thereby providing favorable high-contrast display images.

Abstract: The invention relates to a mold having an irregularly uneven surface structure in which an average inclination angle is from 20 to 80 degrees; an optical article having an irregularly uneven surface structure in which an average inclination angle is from 20 to 80 degrees; a method for manufacturing an optical article having an irregularly uneven surface structure by transferring an uneven structure of a mold; a transparent substrate for a surface light emitter which uses an optical article having an irregularly uneven surface structure; and a surface light emitter having a transparent substrate for a surface light emitter.

Abstract: A light diffusion reflecting plate having a high degree of whiteness and excellent light diffusion properties and antiglare properties includes a substrate having thereon at least a ground coat layer and a top coat layer in contact with this ground coat layer. The ground coat layer is a white coating film layer. The top coat layer contains a white pigment from 2 to 15% by mass and two kinds of spherical particles, i.e., (A) a spherical particle having an average particle size of from 5 to 30 ?m and (B) a spherical particle having an average particle size of from 15 to 45 ?m, each of which is contained in an amount of from 5 to 17% by mass. A difference in the average particle size between the spherical particle (A) and the spherical particle (B) is 10 ?m or more.

Abstract: A black edge prism sheet is disclosed, having a substrate and a shadowless glue film layer molded on one side of the substrate. The shadowless glue film layer includes: a central region having multiple first geometry structures arranged in parallel to each other, forming a surface of prisms, and a peripheral region. The peripheral region has multiple second geometry structures arranged adjacent to each other. The peripheral region is located outside the central region and extends to edge of the shadowless glue film layer. An ink layer is printed on the multiple second geometry structures.

Abstract: An expanded cold mirror is provided. The mirror includes a substrate and a coating deposited on the substrate. The coating includes a first coating stack comprising at least one period of a low refractive index metal oxide coating layer and a high refractive index metal oxide coating layer, a second coating stack comprising at least one period of a low refractive index metal fluoride coating layer and a high refractive index metal oxide layer, and a third coating stack comprising at least one period of a low refractive index metal fluoride coating layer and a high refractive index metal fluoride coating layer.

Abstract: Methods for rapidly fabricating color image display for any given color image from a prefabricated generic stamp comprising arrays of structural pixels. The pixels are composed of micro-gratings and/or sub-wavelength structures that give structural colors. Different methods based on micro-patterning techniques may be used to fabricate the color image display devices, including: 1) selectively masking the generic stamp and imprinting from the masked stamp; 2) imprinting from the generic stamp and thermal-optical patterning on an imprinted layer. The fabricated color image display device can further function as a stand-alone display device or a color image stamp for replicating multiple color image display devices.

Abstract: A multilayer diffractive optical element includes a first substrate, a second substrate, a first resin layer having a first diffraction grating pattern and interposed between the first substrate and the second substrate, and a second resin layer having a second diffraction grating pattern and interposed between the first substrate and the second substrate. The first resin layer includes a first region provided at a peripheral portion adjacent to a portion of the first diffraction grating pattern. The first resin layer includes a second region provided at a peripheral portion adjacent to the first region.

Abstract: The description relates to capturing or sensing color images of scenes and information about the type of light (e.g., light source) that illuminated the scene. One example can include an image sensor manifest as an array of pixels. This example can also include a lens configured to focus an image from a scene on the array of pixels. The array of pixels can entail first pixels that are configured to sense the image and second pixels that are configured to capture information about lighting of the scene.

Abstract: An integrated swept wavelength optical source uses a filtered ASE signal with an optical amplifier and tracking filter. This source comprises a micro optical bench, a source for generating broadband light, a first tunable Fabry Perot filter, installed on the bench, for spectrally filtering the broadband light from the broadband source to generate a narrowband tunable signal, an amplifier, installed on the bench, for amplifying the tunable signal, and a second tunable Fabry Perot filter, installed on the bench, for spectrally filtering the amplified tunable signal from the amplifier. A self-tracking arrangement is also possible where a single tunable filter both generates the narrowband signal and spectrally filters the amplified signal. In some examples, two-stage amplification is provided. The use of a single bench implementation yields a low cost high performance system. For example, polarization control between components is no longer necessary.

Abstract: A stereo viewing device comprises a first lens comprising a first lens filter, and a second lens comprising a second lens filter. The first lens filter comprises a first set of light absorbing dyes that define a first set of rejection bands. The first set of light absorbing dyes comprises at least a first polymethine dye. The second lens filter comprises a second set of light absorbing dyes that define a second set of rejection bands different from the first set of rejection bands. The second set of light absorbing dyes comprises at least a second polymethine dye.

Abstract: The present invention relates to a laminate including an unstretched polymer film; and an unstretched polyvinyl alcohol-based film attached to at least one surface of the polymer film, and a preparing method for a thin polarizer using the laminate.

Abstract: A polarizer includes a base substrate, a polarizing layer disposed on the base substrate and including a plurality of first linear extensions spaced apart from each other, and an ultraviolet (UV)-blocking layer including a plurality of second linear extensions spaced apart from each other and crossing the first linear extensions. The polarizer may block an external UV light.

Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3), the second phase difference layer has a thickness of 0.2 ?m to 2.0 ?m, and further, the optical film has optical properties represented by the formulae (1) and (2): Re(450)/Re(550)?1.00??(1) 1.00?Re(650)/Re(550)??(2) nx?ny<nz??(3).

Abstract: Complex spectral and angular diffractive optical elements in photosensitive materials based on Moiré pattern are proposed and demonstrated. The process is based on the recording of multiple volume Bragg gratings with controlled difference of the periods in the same volume of photosensitive material. Filters with ultra-narrow bandpass in the range of a few picometers to a few tens of picometers or apodized diffractive optical elements across large aperture are demonstrated. Several methods to fabricating such Moiré Bragg gratings are proposed. Experimental demonstration of a Moiré ultra-narrowband diffractive optical element in PTR glass is performed.

Abstract: A light source system includes an intermediary adapter which mechanically connects a first light source module, a first irradiation module, a second light source module and a second irradiation module, a first connection mechanism which connects the first light source module and the intermediary adapter and a second connection mechanism which connects the second light source module and the intermediary adapter. The first irradiation module and the second irradiation module are interchangeably connected to the intermediary adapter in the same plane of the intermediary adapter.

Abstract: An optical device is provided for coupling an external optical signal into a plurality of on-chip photonic sub-circuits provided on a substrate. The optical device comprises: a planar waveguide layer on the substrate; a diverging grating coupler configured to couple the external optical signal to the planar waveguide layer and to thereby create an on-chip diverging optical beam in the planar waveguide layer; and a plurality of channel waveguides formed in the waveguide layer. Each channel waveguide of the plurality of channel waveguides comprises a waveguide transition structure having a waveguide aperture oriented towards the diverging grating coupler. For each channel waveguide of the plurality of channel waveguides the position and the width of the corresponding waveguide aperture and the angle and the shape of the waveguide transition structure are individually selected to capture a predetermined portion of the on-chip diverging optical beam.

Abstract: An optical device includes an optical guide adapted for propagating a light beam by successive total internal reflections and an injection device adapted for injecting the light beam into the optical guide via an injection section. A polarizing material is present between the optical guide and the injection device at the injection section. The injection device includes a prism and an assembly formed by a quarter-wave plate and curved mirror, the injection device being arranged so that a light beam reflected by the polarizing material in the direction of the curved mirror passes through the quarter-wave plate and is then reflected by the curved mirror in the direction of the polarizing material and passes through the quarter-wave plate again.

Abstract: Provided is a method for a light conversion member including forming a plurality of grooves etched by a predetermined depth from a top surface to a bottom surface of a first substrate, forming a plurality of first connection members disposed in a first unit area partitioned by each of the grooves and having a closed loop shape surrounding each of the grooves on the top surface of the first substrate, forming a quantum dot member in the groove, forming a plurality of second connection members disposed in each of second unit areas partitioned on a bottom surface of a second substrate, cutting the second substrate along boundaries of the second unit areas; bonding a plurality of second sub substrates cut along the second unit areas to the top surface of the first substrate so as to overlap the first unit areas.

Abstract: Disclosed are an optical member and a display device. The display device includes a light guide plate; a light source on a lateral side of the light guide plate; and a wavelength conversion member between the light source and the light guide plate. The wavelength conversion member includes a receiving part between the light source and the light guide plate; a host in the receiving part; and a plurality of wavelength conversion particles in the host. The receiving part includes a convex part between the light source and the host; and a concave part between the light guide plate and the host.

Abstract: This document describes techniques and apparatuses for implementing backlight dimming film. These techniques may be performed using a side entry lightguide structure having a receiving side and an output surface. The lightguide structure receives light through the receiving side and redirects the light so that it is output through the output surface. The techniques are also performed relative to a cover screen structure that receives light from the output surface of the lightguide structure and filters the light to display an image. A dimming film is disposed between the output surface of the lightguide structure and the cover screen structure. The dimming film is controlled to block light output from the output surface of the lightguide structure from being received at the cover screen structure.

Abstract: Disclosed are a backlight unit and a liquid crystal display device including the same to stably fix a light guide plate. The backlight unit includes a guide disposed between a cover bottom, on which a light guide plate is mounted, and the light guide plate, the guide having a plurality of projections in an area in which the guide contacts the light guide plate.

Abstract: A solution for fabricating a structure including a light guiding structure is provided. The light guiding structure can be formed of a fluoropolymer-based material and include one or more regions, each of which is filled with a fluid transparent to radiation having a target wavelength, such as ultraviolet radiation. The region(s) can be created using a filler material, which is at least substantially enclosed by the fluoropolymer-based material and subsequently removed from each region. The structure can further include at least one optical element integrated into the light guiding structure.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optical communications. In one aspect, an optical circulator array includes a plurality of stacked three port circulators each having a respective first port of a first port array, a respective second port of a second port array, and a respective third port of a third port array, wherein each of the plurality of stacked three port circulators share optical components including: a first Wollaston prism coupled to the first port array, a first lens, a first half wave plate, a polarization dependent beam path separator, a second half wave plate, a second lens, a propagation direction dependent polarization rotation assembly, a second Wollaston prism coupled to the second port array, and a third Wollaston prism coupled to the third port array.

Abstract: A photonic integrated circuit (PIC) is described. This PIC includes an inverse facet mirror on a silicon optical waveguide for optical proximity coupling between two silicon-on-insulator (SOI) chips placed face to face. Accurate mirror facets may be fabricated in etch pits using a silicon micro-machining technique, with wet etching of the silicon <110> facet at an angle of 45° when etched through the <100> surface. Moreover, by filling the etch pit with polycrystalline silicon or another filling material that has an index of refraction similar to silicon (such as a silicon-germanium alloy), a reflecting mirror with an accurate angle can be formed at the end of the silicon optical waveguide using: a metal coating, a dielectric coating, thermal oxidation, or selective silicon dry etching removal of one side of the etch pit to define a cavity.

Abstract: A method and system are described for reducing a thermo-optic effect in silicon photonics. In described embodiments, the system comprises a silicon photonic device with a silicon core that includes a cladding layer comprising titanium adjacent to the silicon core. In described embodiments, the method comprises providing a silicon core and depositing a cladding layer adjacent to the silicon photonic core, wherein the cladding layer comprises titanium.

Abstract: A semiconductor structure is provided, the semiconductor structure comprising: a semiconductor substrate processed to comprise at least an optical aspect comprising at least a silicon photonics device and at least an electronic aspect comprising at least an electronic device; at least an interlayer dielectric layer provided on the semiconductor substrate, and at least an electrically interconnecting layer provided on the interlayer dielectric layer, wherein: the semiconductor structure further comprises at least a functional-oxide crystalline layer provided in relation to the interlayer dielectric layer before the interconnecting layer is provided on the interlayer dielectric layer, the functional-oxide crystalline layer comprising at least a functional-oxide material and is processed to comprise at least an active optical device, and the interlayer dielectric layer comprises a first surface and a second surface, the first surface being in common to at least a respective part of the optical aspect and the ele

Abstract: A semiconductor substrate, an insulating layer made of silicon oxide formed on the semiconductor substrate and a semiconductor layer made of silicon formed on the insulating layer are provided, and the semiconductor layer constitutes an optical waveguide in an optical signal transmission line section and an optical modulator in an optical modulation section. Also, the insulating layer is removed except for a part thereof to have a hollow structure with a cavity, and both side surfaces and a lower surface of each of the semiconductor layers constituting the optical waveguide and the optical modulator are exposed and covered with air.

Abstract: A digital system has a dielectric core waveguide that has a longitudinal dielectric core member. The core member has a body portion and a transition region, with a cladding surrounding the dielectric core member. The body portion of the core member has a first dielectric constant. The transition region of the core member has a graduated dielectric constant value that gradually changes from the first dielectric constant value adjacent the body portion to a third dielectric constant.

Abstract: Provided is an optical waveguide photosensitive resin composition containing a resin component and a photopolymerization initiator, in which the resin component contains an aliphatic resin having a polymerizable substituent as a main component. Accordingly, when, for example, the core layer of an optical waveguide is formed by using the optical waveguide photosensitive resin composition, the optical waveguide has high transparency, and vibration absorption derived from a resin skeleton at a wavelength of 850 nm serving as the wavelength of light propagating through the optical waveguide can be avoided. As a result, a reduction in loss of the optical waveguide can be realized.

Abstract: A radio-frequency photonic devices employs photon-phonon coupling for information transfer. The device includes a membrane in which a two-dimensionally periodic phononic crystal (PnC) structure is patterned. The device also includes at least a first optical waveguide embedded in the membrane. At least a first line-defect region interrupts the PnC structure. The first optical waveguide is embedded within the line-defect region.

Abstract: A high efficiency optical combiner minimizes core region distortions in the area where fusion splicing between an input tapered fiber bundle (or any other type of “cladding-less” input fiber) and output fiber are joined. The thickness of the output fiber's glass cladding layer in the splice region is reduced (if not removed altogether) so that a core-to-core splice is formed and any necked-down region where the glass flows to join the core regions (while also joining the outer diameters) is essentially eliminated. The reduction of distortions in the core region of the splice improves the transmission efficiency between an input tapered fiber bundle and output fiber, reaching a level of about 99%. This high efficiency optical combiner is particularly well-suited for applications where a number of pump sources are combined and applied as an input to a fiber laser or amplifier.

Abstract: An optical interconnect can be located between a first optical guide with a first optical guide end and a second optical guide with a second optical guide end. The first optical guide and the second optical guide can each have an operational wavelength, which can be substantially the same such that light of such a wavelength can propagate through the optical interconnect. The optical interconnect can include a pressure-sensitive material with a first region with a first refractive index at the operating wavelength. The pressure-sensitive material can include a second region with a second refractive index at the operating wavelength located between the first optical guide end and the second optical guide end. The second region can be induced by a mechanical pressure applied between the first guide end and the second guide end.

Abstract: An optical tap includes a support with a first port facing a first ferrule supporting a first fiber along a first axis. A beamsplitter is connected to the support and intersected by the first axis. A second port is fastened to the support and facing a second ferrule supporting a second fiber along a second axis that intersects the beamsplitter. A third port is fastened to the support and facing a third ferrule supporting a third fiber along a third axis that intersects the beamsplitter, wherein the beamsplitter splits a first light signal from the first port to sends first and second portions of the first signal to the second and third ports, respectively. When the beamsplitter may optionally be configured as a polarizing element and include elements configured to rotate relative to each other to change a ratio of the first and second portions.

Abstract: A semiconductor optical device includes a semiconductor substrate having first to fourth regions, a 90-degree optical hybrid provided in the third region on a principal surface of the semiconductor substrate, first and second waveguides provided in the first region and being optically coupled to the 90-degree optical hybrid, a photodiode provided in the fourth region, a third waveguide provided in the second region to optically couple the 90-degree optical hybrid to the photodiode, and a metal layer provided on a back surface of the semiconductor substrate. The metal layer includes a first part provided in the first region and a second part provided in the second region that is spaced apart from the first part by a distance. The 90-degree optical hybrid has a first length. The distance between the first and second parts is more than or equal to the first length.

Abstract: A system for connecting a fiber optic cable to a laminate has a clip which attaches to a cover on the circuit board. The clip supports ferrules which are connected to a photonic device on the board. The clip has a backplane which supports retainers which hold the ferrules. The clip also has mating attachments for connecting to the cover. The cover additionally serves as a heat dissipator, which can include heat from the photonic device. An adapter is connected to the cover and receives the ferrules supported by the clip. The adapter connects to a standard connector, such as an LC connector. The adapter can be positioned at the edge of the laminate, or can be attached at an angle extending from an interior region of a circuit board to which the laminate is mounted.

Abstract: A method of fabricating an optical coupling device, comprising forming a waveguide mask layer on a substrate platform, wherein the waveguide mask layer comprises an array of openings comprising a first end and a second end opposite to the first end, immersing the substrate platform into a salt melt comprising ions to form an array of waveguides in the substrate platform through an ion diffusion process, and controlling a rate of immersion such that a diffusion depth of the ions varies as a function of a distance in a direction from the first end to the second end, wherein the array of waveguides extends in the direction from the first end to the second end.

Abstract: Optical switch for adjustable deflection of a light beam from the direction of an input point in the direction of one of several output points. The optical switch includes a switching mirror sensitive to changes in environmental conditions, such as temperature fluctuations. Also included is a rotatable capturing mirror, two beam splitters, and two spatially-resolving detectors. Both mirrors can be rotated around respective axes. A front beam splitter for the partial coupling of the light beam at the front detector that is optically positioned between the capturing mirror and the switching mirror, while the back beam splitter for the partial decoupling of the light beam at the back detector is arranged optically between the switching mirror and each of the output positions. A control unit is adapted to control the drive of the switching mirror on the basis of a signal from the back detector.

Abstract: A female hardened fiber optic connector for terminating an end of a fiber optic cable that is suitable for making an optical connection with another hardened cable assembly and cable assemblies using the same are disclosed. The female hardened fiber optic connector includes a connector assembly, a crimp body, and a shroud. The crimp body has a first shell and a second shell for securing the connector assembly at a front end of the shells and a cable attachment region rearward of the front end for securing a cable. The crimp body fits within the shroud and is secured within the shroud using a locking feature disposed on a rim area of the shroud. The female hardened connector may further include a receptacle having a non-hardened receptacle port and a hardened receptacle port, where alignment fingers of the female hardened connector fit into distinct openings on the non-hardened receptacle port side.

Abstract: A fiber coupling module comprises an optical fiber connector detachable from an optical fiber cable, wherein an end surface of the optical fiber cable is treated with an anti-reflection coat to set the reflectance lower than a predetermined value relative to the light of a first wavelength band and to set the reflectance higher than a predetermined value relative to the light of a second wavelength band excluding the first wavelength band, and the fiber coupling module connects to the optical fiber cable through said optical fiber connector. A main light source outputs the light of the first wavelength band to the optical fiber cable. An aiming light source outputs the light of the second wavelength band to the optical fiber cable. A detection element that detects the connection status of the optical fiber cable to the optical fiber connector based on the light of the second wavelength band reflected from the end surface of the optical fiber cable.

Abstract: An expanded beam (EB) optical connector. In some embodiments, the EB optical connector includes: a rigid, hollow, straight contact tube having a centerline axis; and a collimator assembly having an optical axis and comprising an optical fiber and a collimating lens, wherein the centerline axis of the contact tube is at least substantially aligned with the optical axis such that collimated light produced by the lens from light exiting the fiber travels though the contact tube and the loss of light caused by misalignment of the axes is not more than 2 dB.

Abstract: A multi-channel transmitter optical subassembly (TOSA) with an off-center fiber in an optical coupling is disclosed, and can provide passive compensation for beam displacement introduced by optical isolators. The optical coupling receptacle can include an optical isolator configured to receive a focused light beam from a focus lens within the TOSA. The optical coupling receptacle may be offset such that a center line of the focused light beam entering the optical isolator is offset from a center line of a fiber within optical coupling receptacle. Thus the optical isolator receives the focused light beam from the focus lens and introduces beam displacement such that an optical signal is launched generally along a center line of the fiber. Thus the expected beam displacement introduced by the optical isolator is eliminated or otherwise mitigated by the offset between a center line of the fiber and a center position of the focus lens.

Abstract: An electronic apparatus includes a substrate and an optical connector connected to a waveguide on the substrate. The optical connector includes a ferrule that holds an optical fiber and has front and rear parts along a connecting direction of the optical connector with respect to the substrate. The ferrule has a hook and a presser member provided on a bottom face at the front part of the ferrule, a projection provided on the bottom face at the rear part of the ferrule, and a sloping part including a groove formed in the bottom face to hold the optical fiber. The optical fiber is held obliquely downward toward the substrate by the sloping part. The substrate has holes to receive the hook and the projection, and a groove to receive the optical fiber.

Abstract: A feedthrough assembly includes a main housing, a first inner housing positioned within the main housing and defining a plurality of first inner conduits, a second inner housing positioned within the main housing and defining a plurality of second inner conduits, and a chamber defined by an internal surface of the main housing, a first end of the first inner housing, and a first end of the second inner housing that faces the first end of the first inner housing. Each of the plurality of first inner conduits is aligned with a corresponding one of the plurality of second inner conduits. A cross-sectional area of the chamber varies along a longitudinal axis of the main housing.