Abstract: Systems and methods described herein include improved data gathering, climate modeling and weather forecasting techniques. In particular, the systems include using Global Positioning System (GPS) measurements obtained from a network of GPS devices for simultaneously determining atmospheric parameters such as water vapor content, temperature and pressure, and correcting for errors in the GPS measurements, themselves. The systems and methods described herein include a central processor for receiving data from a plurality of GPS devices and updating a computerized climate or weather forecasting model. Advantageously, by using data from a plurality, and in some embodiments a very large number of GPS devices, the systems and methods described herein may solve for both propagation velocity of electromagnetic signals through the atmosphere (used for calculating atmospheric parameters useful in climate modeling) and GPS position error values (used for error correction at each GPS device).

Abstract: Disclosed is a non-aqueous dispersant which is excellent in dispersibility and dispersion stability and able to form a resin layer with excellent hydrolysis resistance; a color material dispersion liquid containing the non-aqueous dispersant; and a color resin composition containing the non-aqueous dispersant.

Abstract: A method is provided for manufacturing ophthalmically-acceptable, distortion-free silicone hydrogel contact lenses without the use of volatile organic solvents in the manufacturing process. The contact lenses are extract with an extraction liquid comprising an aqueous solution of a non-volatile organic solvent, such as ethyl lactate.

Abstract: The present invention relates to biomedical devices, and particularly contact lenses comprising a polymer having entangled therein at least one polymer comprising repeating units from N-(2-hydroxyalkyl)(meth)acrylamide.

Abstract: An optical member set which has a first optical member formed by curing a composition of curable resins, and a second optical member which is covered by the first optical member, in which the contact angle with water on a surface, which comes into contact with a first optical member, of the second optical member is 70 to 97° and the contact angle with the water on a surface of the opposite side to the side, which comes into contact with the second optical member, of the first optical member is 80 to 115°.

Abstract: An optical film assembly includes an anti-reflection film including a plurality of stacked anti-reflection layers, a side surface of the anti-reflection film being inclined with respect to an upper surface of a display panel, the anti-reflection layers having different thicknesses and different refractivities, and an anti-fingerprint film on the anti-reflection film, the anti-fingerprint film being integral with the anti-reflection film, the anti-fingerprint film being hydrophobic.

Abstract: The invention relates to an optical article having antireflection properties, optionally antistatic properties, having a high thermal and abrasion resistance, as well as the method for producing the same. The article of the invention comprises a substrate and, starting from the substrate: a sub-layer comprising a SiO2-based layer, said SiO2-based layer having a thickness greater than or equal to 75 nm et free from Al2O3; and a multilayered antireflection coating comprising a stack consisting in at least one high refractive index layer and at least one low refractive index layer, all the low refractive index layers of which comprising a mixture of SiO2 and Al2O3, and the high refractive index layers of which are not layers that do absorb in the visible region comprising a substoichiometric titanium oxide and reducing the relative visible light transmission factor (Tv) of the optical article by at least 10% as compared to a same article without any of said visible light absorbing layers.

Abstract: It is proposed an optical substrate of which at least one surface is combined with an optical member made of a material that is different from that of the optical substrate, so as to form an optical element, in which an edge face is formed on at least a portion of an outer circumferential face of the optical substrate, and the edge face is formed in a tapered shape that is centripetally reduced from a side of the surface combined with the optical member towards an opposite side thereof.

Abstract: Aspheric variable focal length lens systems and methods are described herein. One example of a system for aspheric variable focal length lens includes a first surface coupled to a second surface by a number of concentric rings that creates a void, wherein the first surface is a variable aspheric surface, an optical material within the void between the first surface and the second surface, a first actuator located at a first end of the first surface and a first end of the second surface, and a second actuator located at a second end of the first surface and a second end of the second surface.

Abstract: A beam focuser for focusing an entrance bundle of approximately collimated beams around an optical axis in a focus area around a focal point. Along the optical path from the light inlet to the light outlet, a first axicon with an axicon angle, and subsequently a second axicon with the same axicon angle are arranged on the inlet side, and an imaging optical system is arranged on the outlet side. The first and second axicon are disposed mirror-symmetrically along the optical axis. The imaging optical system has a focal point which faces the outlet side of the beam focuser.

Abstract: Provided is a color improving film comprising a base layer, a high refractive light diffusion layer including an organic light diffuser on the base layer, a high refractive resin layer on the high refractive light diffusion layer, and a low refractive resin layer in which a lenticular lens pattern is formed on the high refractive resin layer, wherein the organic light diffuser comprises particles coated with a black pigment and non-coated particles, and wherein the lenticular lens pattern is formed on a surface of the low refractive resin layer facing the high refractive resin layer. According to the color improving film, a change in color sensitivity according to an angle of view is small, an external light reflectivity is low, and a light transmittivity and a light diffusibility are substantially improved. Also, the method of preparing the color improving film has excellent processiblity and economic efficiency.

Abstract: Embodiments of the present invention disclose a display motherboard and a manufacturing method thereof. The display motherboard includes a plurality of process areas, the process area includes a plurality of display panels and the display panel includes a color filter substrate and an array substrate provided opposite to each other. The technical solution of the present invention first determines the process area, to which the display panel belongs, by the predetermined number for transitional sub-pixels in the part of the non-display area on one side of the display area on the color filter substrate, and then determines the specific position of the display panel in the process area, to which the display panel belongs, by the location identifier on the array substrate, so that the identification for the display panel is realized, which improves capacity of production line while optimizing design space of peripheral area for the display panel.

Abstract: The belt ply feeder and a feeding method include: when a belt ply is conveyed to the front end of a conveying forming board, a force is exerted by a perpendicular adjustment device to drive a conveying forming board bracket to swing upward and rotate around a pivot shaft of a rack to positions at which the upper surface of the conveying forming board is tangential to the periphery of a belt ply drum. According to this arrangement, the belt ply is tangential to the belt ply drum all the time and a belt ply is in firm contact with a belt ply drum regardless of the size of the belt ply drum when wrapping the belt ply around the belt ply drum. Accordingly, the quality of tire shaping can be improved.

Abstract: An optical filter is disclosed including two laterally variable bandpass filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. This happens because an oblique beam transmitted by the upstream filter is displaced laterally when impinging on the downstream filter. The lateral displacement causes a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap.

Abstract: A process for producing an optically anisotropic film having a high ?n and superior optical performance is provided. The process includes the following steps (A) and (B) carried out in order: (A) a step of applying a composition for forming an optically anisotropic film to a substrate, the composition containing a photopolymerization initiator, a solvent and a polymerizable liquid crystal compound having a maximum absorption wavelength in a range of 250 nm to 370 nm, and (B) a step of applying light with wavelengths in the range of 200 nm to 500 nm that has an allowable variation range of less than 250 nm in wavelength.

Abstract: The present invention addresses the problem of providing an optical compensation thin film which contains a cellulose acylate and an additive and which when laminated on a polarizer with a photocurable adhesive, exhibits high adhesiveness to the polarizer and can reduce the occurrence of curling and the deterioration of polarization degree. An optical compensation film which contains a cellulose acylate having an acylation degree of 2.0 to 2.5 and an additive and which has a film thickness of 15 to 40 ?m, characterized in that when 50 pl of hydroxyethyl acrylate droplets are dropped on the film at 23 C and 55% RH, at least one surface of the film exhibits a permeability of 10 to 25 pl/15 sec to the droplets.

Abstract: An optical system (110) includes a lens unit (112) with a plurality of lenses. An out-of-focus point spread function of the lens unit (112) includes an annular intensity distribution with at least one ring-shaped side peak at a radial distance to a center point. A birefringent device (115) in an optical path of the optical system (110) is adapted to selectively attenuate the ring-shaped side peak in the out-of-focus point spread function of the lens unit (112).

Abstract: An optical assembly comprises light sources and a light emitting panel member having an input edge to which each of the light sources is optically coupled at a different location along the input edge. Different sets of individual optical deformities on or in at least one of the sides of the panel member each have at least one surface that is shaped or oriented to extract light propagating in the same direction through the panel member in different directions for viewing from different angles through one of the sides of the panel member.

Abstract: The present disclosure provides a light conducting device, a backlight module and a display device. The light conducting device cooperates with a light source to form a backlight module. The light conducting device includes at least one light receiving surface. The light receiving surface includes a plurality of annular sub-receiving surfaces configured to cause received light from the light source to be emitted in a single direction.

Abstract: A light source includes a light emitter configured to emit light, and a light guiding member located at a side of the light emitter. The light guiding member includes a first light entering face, a first light exiting face and a top face connecting the first light entering face and the first light exiting face. The first light entering face is coupled to the light emitter. The first light entering face is opposite to the first light exiting face. The first light entering face has a height larger than that of the first light exiting face. The top face includes a first connecting face and a second connecting face extending from an angle relative to the first connecting face. The light guiding member is configured to receive the light from the light emitter via the first light entering face and output the light via the first light exiting face.

Abstract: A waveguide body comprises a length from a first end to a second end. The waveguide body further comprises a central section extending along the entire length of the waveguide body and comprising a first thickness. First and second opposed side sections extend away from the central section along the length of the waveguide body and comprise second and third thicknesses, respectively, less than the first thickness. A coupling portion is located in the central section, wherein the coupling portion comprises first and second coupling surfaces defining at least in part an elongate coupling cavity extending along the length of the waveguide body. The coupling portion further comprises first and second control surfaces, and the first and second coupling surfaces are configured to direct light onto the first and second control surfaces. The first and second control surfaces are configured to direct light into at least one of the first and second side sections.

Abstract: Extended area lighting devices include a light guide and diffractive surface features on a major surface of the light guide. The diffractive surface features provide low distortion for viewing objects through the light guide. Light from discrete light source(s) is injected into the light guide, and the diffractive surface features interact with the injected light to couple guided-mode light out of the light guide. The out-coupled light produces one or more bands whose apparent shape changes with viewing position. The bands may be bright bands that correspond to the discrete light sources, or dark bands associated with an optional non-uniform reflective structure extending along a side surface of the light guide. Multiple bands may form a pattern that changes with viewing position, the pattern of bands having a 3-dimensional appearance for at least some viewing positions. The lighting devices can be used as luminaires for general lighting or decorative lighting.

Abstract: An optical waveguide body includes a first layer of optically transmissive material and a second layer of optically transmissive material in contact with the first layer. At least one of the first and second layers is tapered and the first layer has a first index of refraction and the second layer has a second index of refraction less than the first index of refraction and the first and second indices of refraction are both greater than about 1.0.

Abstract: An optical member including a wavelength conversion layer to convert a wavelength of an incident light; an upper anti-reflective layer of at least two layers disposed on a first surface of the wavelength conversion layer; and a lower anti-reflective layer of at least two layers disposed under a second surface of the wavelength conversion layer opposite to the first surface. Further, wherein the at least two layers of the lower anti-reflective layer have different refractive indices.

Abstract: Optical films, optical stacks including the optical films, and display systems including the optical films are described. The optical film includes a first major surface that may include a plurality of first microstructures that extend along a first direction. The optical film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%.

Abstract: This invention relates to light guide devices and methods of manufacture. The light guide device is suitable for use in a range of applications, particularly in connection with the backlighting of displays, for example, liquid crystal displays.

Abstract: A light unit is provided. The light unit includes a PCB mounted with a plurality of LEDs, and a light guide member having a plurality of reception grooves piercing therethrough and receiving the LEDs, wherein the light guide member includes one surface and the other surface opposite to the one surface, and the one surface of the light guide member is further coated with the resin material. The reception grooves are formed in the light guide member and are filled with a fluid resin material, thus preventing the damage to the LED caused by the difference between the thermal expansion rates of the components such as the light guide member, the reflection film and the PCB.

Abstract: A buffer element and a manufacturing method thereof, a backlight module, and a display device are disclosed. When the buffer element is applied to the backlight module, the problem caused by thermal expansion of the light guide plate can be effectively solved without needing to reserve a gap in the backlight module, the relative movement of the light guide plate is avoided and the optical quality of the backlight module is improved. The buffer element comprises a buffer body, wherein the buffer body comprises a curable adhesive, and a negative thermal expansion material dispersed in the curable adhesive.

Abstract: A backlight assembly includes a light guide plate (LGP) having a stepped portion formed at a corner of the LGP, an optical sheet disposed over the LGP and a receiving container receiving the LGP and the optical sheet. The receiving container includes a bottom plate, first through fourth sidewalls and a first LGP fixing portion. The second sidewall is adjacent to the first sidewall. The third sidewall faces the first sidewall. The fourth sidewall faces the second sidewall. The first through fourth sidewalls are extended upwardly from edge portions of the bottom plate. The first LGP fixing portion is formed at the first sidewall such that the LGP fixing portion corresponds to the stepped portion of the LGP. Therefore, a display device is easily assembled. Furthermore, a defilement that may occur during an assembling process may be reduced to enhance productivity.

Abstract: A large area light source includes a narrow space of several millimeters long arranged between adjacent ends of circuit boards of LED bars that are arranged in series in their longitudinal direction, and one end or both ends of a connecting pin is attached movable in its longitudinal direction to a coupling terminal arranged on an end of the circuit board of the LED bar, the LED bar is attached movable in its longitudinal direction to its holder. Even if deformation of distortion, bending, or strain is induced by transportation, installation, or use of the area light source, the movable LED bar as well as the connecting pin absorbs expansion and contraction stress working between the adjacent ends of the circuit boards to securely prevent such breaking of wire incurred by use of a plurality of divided LED bars.

Abstract: A multimode optical fiber is provides, which includes an optical core and an optical cladding surrounding the optical core. The optical core has a refractive graded-index profile. The optical cladding includes: an inner layer surrounding the optical core, an intermediate layer, called a “depressed trench”, surrounding the inner layer, and an outer layer surrounding the depressed trench and having a constant refractive index. The depressed trench has a width W and a negative refractive index difference ?nt with respect to the outer layer, and is designed so as to satisfy the following inequality: |0.585677?114.681×S+13.7287×S2+18.7343×S×W?4.61112×S×?nt.103?0.913789×W×?nt.103|+2×W×?nt.103<?30 wherein: S is the width of the inner cladding, which is included between 0.6 ?m and 1.6 ?m; ?nt is included between ?11.10?3 and ?4.10?3; and W×?nt.103 is lower than ?25 ?m.

Abstract: A semiconductor device employs an epitaxial layer arrangement including a first ohmic contact layer and first modulation doped quantum well structure disposed above the first ohmic contact layer. The first ohmic contact layer has a first doping type, and the first modulation doped quantum well structure has a modulation doped layer of a second doping type. At least one isolation ion implant region is provided that extends through the first ohmic contact layer. The at least one isolation ion implant region can include oxygen ions. The at least one isolation ion implant region can define a region that is substantially free of charge carriers in order to reduce a characteristic capacitance of the device. A variety of high performance transistor devices (e.g., HFET and BICFETs) and optoelectronic devices can employ this device structure. Other aspects of wavelength-tunable microresonantors and related semiconductor fabrication methodologies are also described and claimed.

Abstract: A monolithic optoelectronic device has a spot-size converter optically connected to a waveguide. The overclad extending over the core of the waveguide is thinner and differently doped than the overclad of the spot-size converter. This structure can be made by applying a process of etching and enhanced selective area regrowth to create regions of the overclad of different thickness or doping. The spot-size converter core is made of a different material than the waveguide core by using etching and enhanced selective area regrowth.

Abstract: A connector system comprising: a multi-plug connector, each plug having a housing and a ferrule, said housing having a front and back orientation and having a front face defining an opening, said ferrule being disposed within said opening, said housing defining a first keying element on said front face around said opening, at least two housings of said multi-plug connector having different said first keying elements.

Abstract: An optical circulator integrated into a transceiver for bi-directional communication may include a core configured to pass a transmission signal in a transmit direction and a received signal in a receive direction. The optical circulator may include an input port optically coupled to the core. The input port may be configured to deliver the transmission signal to the core. The optical circulator may include an output port optically coupled to the core. The output port may be configured to receive the received signal from the core. The optical circulator may additionally include a network port optically coupled to the core. The network port may be configured to receive the transmission signal from the core and deliver the transmission signal to a fiber optic cable. The network port may be configured to receive the received signal from the fiber optic cable and deliver the received signal to the core.

Abstract: A waveguide coupler has a compression region and an expansion region for coupling light between a silicon waveguide and an optical fiber. The compression region receives light from the silicon waveguide and compresses an optical mode of the light. Light is transmitted from the compression region to an expansion region. The expansion region expands the light to have a larger cross section. Light is then transmitted to the optical fiber.

Abstract: A micro-electro-mechanical systems (MEMS) mirror array can be constructed using sub-dies that each includes two or more MEMS mirrors. In some implementations, an optical cross-connect system includes a first MEMS mirror array that includes first mirror units. Each first mirror unit can include a first substrate and two or more first MEMS mirrors supported by the first substrate. Each first substrate can be independent from each other first substrate. The cross-connect system can include a second MEMS mirror array that includes second mirror units. Each second mirror unit can include a second substrate and two or more second MEMS mirrors supported by the second substrate. Each second substrate can be independent from each other second substrate.

Abstract: A universal fiber optic connector includes a housing and a fiber attachment element configured to attach an optical fiber in the housing. The attachment element positions the optical fiber such that an end face of the fiber is held within the housing. The fiber end face is positioned such that a beam of light emerging from the fiber end face has a defined wavefront located at a specified interface.

Abstract: An optical fiber assembly includes a housing with a mating face, a ferrule having a plurality of optical fibers, and a beam expanding element generally aligned with each optical fiber. A cover is slidably mounted on the housing adjacent the mating face. One of the housing and the cover includes a retention member. Another of the housing and the cover includes a guide and retention member. The guide and retention member interacts with the retention member to retain the cover to the housing and permit sliding movement of the housing relative to the cover. An assembly of connectors, a method of mating and a tool for mating are also provided.

Abstract: An optical fiber socket for being connected to an optical fiber plug and a first optical fiber cable includes a socket sleeve unit, a socket shell having a surrounding wall that defines a connecting hole for insertion of the first optical fiber cable thereinto and for being engaged with the optical fiber plug, a plurality of spaced-apart receiving holes that extend radially through the surrounding wall and that communicate with the connecting hole, and a plurality of locking members that are movably and respectively disposed in the receiving holes, and a socket guiding unit. When the optical fiber socket is connected to the optical fiber plug, the locking members are urged to move toward and clamp the optical fiber plug.

Abstract: The present invention relates to an MCF and others with a structure for accurately aligning each of core arrangement directions of one or more MCFs to be fixed in a connector. Each of the MCFs has a marker as an index for rotational position. The ends of the MCFs are rotated while monitoring positions of the respective markers with a CCD camera or the like, whereby each of the core arrangement directions is aligned with a specific direction.

Abstract: A fiber optic alignment device includes a first and a second alignment block and a first and a second gel block. A fiber passage extends from a first end to a second end of the fiber optic alignment device. The fiber passage is adapted to receive a first optical fiber through the first end and a second optical fiber through the second end. An intermediate portion of the fiber passage is positioned between the first and the second ends. The intermediate portion is adapted to align the first and the second optical fibers between the first and the second alignment blocks. A first portion of the fiber passage is positioned between the first end and the intermediate portion of the fiber passage. The first portion extends between the first alignment block and the first gel block. A second portion of the fiber passage is positioned between the second end and the intermediate portion of the fiber passage. The second portion extends between the second alignment block and the second gel block.

Abstract: A communication connector with alterable polarity, comprising a main body, a pair of fiber optic plugs, and a casing for signal connection via a fiber optic socket, wherein the pair of fiber optic plugs are installed at the front end of the main body, and the casing provides a sliding cover around the main body. A clip is positioned on the casing. The front end of the clip is used for fixing on the fiber optic socket. Moreover, a pair of grabs is positioned on the surface of the casing corresponding to a neck of the main body. The two grabs are pressed at the same time and separated from the two necks, and the main body and the casing are separated, rotated 180 degrees with regard to each other, and re-assembled. So, the wire jumper polarity exchange is performed by substantially improving convenience and efficacy during operation.

Abstract: An optical connector includes: an optical fiber cable in which an optical fiber core wire and a tensile strength material are covered by a sheathing; a ferrule; a housing which holds the ferrule; a crimping sleeve which includes: a tubular portion; a tensile strength material holding projection which is formed on an outer circumference of the tubular portion; and a sheathing holding projection which is formed on the outer circumference so as to lie further rearwards than the tensile strength material holding projection; and a crimping ring which is crimped on to the tubular portion not only to thereby hold the tensile strength material between the tensile strength material holding projection and the crimping ring but also to thereby hold the tensile strength material and the sheathing between the sheathing holding projection and the crimping ring.

Abstract: The present disclosure relates to a fiber optic connector assembly having a fiber optic connector including a main connector body and a rear insert secured within a rear cable termination end of the main connector body. The fiber optic connector assembly has a fiber optic cable that includes an optical fiber, a strength layer and an outer jacket. The optical fiber has a ferrule-less end portion accessible at a front mating end of the main connector body. A first shape recoverable sleeve secures the optical fiber to a substrate anchored to the rear insert. An axial gap exists between the forward end of the outer jacket and the rearward end of the rear insert. A second shape recoverable sleeve secures the outer jacket to the rear insert. An adhesive material at least partially fills the axial gap.

Abstract: The disclosure generally relates to sets of optical waveguides such as optical fiber ribbons, and fiber optic connectors useful for connecting multiple optical fibers such as in optical fiber ribbon cables. In particular, the disclosure provides an efficient, compact, and reliable optical fiber connector that incorporates a unitary substrate combining the features of optical fiber alignment and redirection of the optical beam to a connected optical fiber.

Abstract: A method for monitoring a circuit. The method may include obtaining, using a total current monitoring device, a measurement of a current transmitted through a cathode in a photodetector circuit. The current may include a first photocurrent for a first photodetector and a second photocurrent for a second photodetector. The method may include obtaining, using a differential current monitoring device in a transimpedance amplifier circuit, a differential voltage proportional to a current difference between the first photocurrent and the second photocurrent. The transimpedance amplifier circuit may generate, using the first photocurrent and the second photocurrent, a first output signal and a second output signal. The method may include determining, using the differential voltage and the measurement of the current transmitted through the cathode, an amount of the first photocurrent and an amount of the second photocurrent.

Abstract: An optical connector includes a board including an element that performs conversion between an electric signal and light, a first ferrule and a second ferrule that are butted against each other, an optical waveguide that optically connects the first ferrule with the element, and a guide that guides the optical waveguide disposed between the first ferrule and the element.

Abstract: A photoelectric conversion module includes: a substrate having a wiring layer and a through hole; a photoelectric conversion element having a light emitting unit or light receiving unit and mounted on the substrate such that the light emitting unit or light receiving unit faces the through hole; a protruding portion that has a hole portion communicating with the through hole, and protrudes from one of principal surfaces of one of the substrate and the photoelectric conversion element, one of the principal surfaces facing the other one of the substrate and the photoelectric conversion element; and an adhesive that is filled in a part of a region between the substrate and the photoelectric conversion element, the region being a region outside an inner peripheral surface of the hole portion, and that bonds the substrate to the photoelectric conversion element.

Abstract: Methods and systems for hybrid integration of optical communication systems may comprise in an optical communication system comprising a silicon photonics die and one or more electronics die bonded to said silicon photonics die utilizing metal interconnects: receiving one or more continuous wave (CW) non-modulated optical signals in said silicon photonics die from an optical source external to said silicon photonics die; modulating said one or more received CW non-modulated optical signals in said silicon photonics die using electrical signals received from said one or more electronics die via said metal interconnects; receiving modulated optical signals in said silicon photonics die from one or more optical fibers coupled to said silicon photonics die; generating electrical signals in said silicon photonics die based on said received modulated optical signals; and communicating said generated electrical signals to at least one of said one or more electronics die via said metal interconnects.