Abstract: There is provided a fast curing composition comprising an alpha, beta-unsaturated amido-containing organosilicon compound, useful in making water absorbing silicone-hydrogel films for biomedical devices, such as contact lens, and a process for producing these monomers. This invention also provides for hydrogels made from the alpha, beta-unsaturated amido-containing organosilicon compound described herein.

Abstract: A Fresnel lens and a pyroelectricity sensor module are provided. The Fresnel lens includes unit lens groups having different refractive indexes, and each of the unit lens groups includes unit lenses. Between two unit lenses of the same unit lens group at least one unit lens included in a different lens group is arranged. The pyroelectricity sensor module includes a Fresnel lens which condenses infrared light; a detecting sensor disposed to receive the condensed infrared light and detect the infrared light; and a signal processing board on which the detecting sensor is mounted and configured to control an output signal of the detecting sensor. The Fresnel lens includes unit lens groups having different refractive indexes, and each of the unit lens groups includes unit lenses, and between two unit lenses of the same unit lens group, at least one unit lens included in a different lens group is arranged.

Abstract: Provided is a display device including a light-diffusing member that includes a substrate, a plurality of light-shielding layers, and a light-diffusing section, and a polarizing plate.

Abstract: A retroreflector device is described, which includes a lens component operable for focusing radiation, which is incident thereto at an angle of incidence. The retroreflector also includes a mirror component operable for reflecting the radiation focused by the lens component back along the angle of incidence. The lens component and/or the mirror component includes a quasi-periodic array of elements, each of which comprises a dimension smaller than a wavelength of the radiation.

Abstract: A color filter substrate, a manufacturing method thereof and a display device are provided. The color filter substrate includes: a transparent base (1); a color filter layer (2) disposed on the transparent base (1) and at least including a plurality of color filter units; a protective layer (3) disposed on the color filter layer (2); a plurality of auxiliary electrodes (4) disposed on the protective layer (3), with a position of each of the auxiliary electrodes (4) corresponding to a connecting position between two adjacent the color filter units; a black matrix (5) disposed on the auxiliary electrode (4) and partially covering the auxiliary electrode (7); a spacer (6) disposed on the black matrix (5); and a transparent electrode (7) disposed on the spacer (6) and electrically connected with the auxiliary electrode (4) in an area of the auxiliary electrode (4), not covered by the black matrix (5).

Abstract: An electromagnetic energy-absorbing optical product useful particularly for automotive and architectural window films is disclosed. The electromagnetic energy-absorbing optical product includes a polymeric substrate and a composite coating with the composite coating including first and second layers each containing a binding group component which together form a complimentary binding group pair.

Abstract: The present invention provides a method for manufacturing a photochromic article having a photochromic compound containing layer. The method includes the step of coating a casting face of at least one mold section with a photochromic host layer. The photochromic host layer is treated to minimize damage during subsequent steps, and a mold is then assembled so that it includes the mold section having the photochromic host layer. The mold is then filled with a photochromic article monomer composition and the monomer composition is subsequently cured to form a photochromic article substrate adhered to the photochromic host layer. The photochromic compound is introduced into the photochromic host layer.

Abstract: The present invention provides a retardation film web having sufficient reversed wavelength dispersion characteristics and favorable for film lamination according to a roll-to-roll system. A retardation film web of the present invention includes a polycarbonate resin or a polyester carbonate resin, an orientation angle ? which is an angle between a slow axis and a width direction satisfies the following formula (I), and a ratio of an in-plane retardation R450 measured at a wavelength of 450 nm to an in-plane retardation R550 measured at a wavelength of 550 nm satisfies the following formula (II): 38°???52°??(I) R450/R550<1??(II).

Abstract: A polarizing plate includes an outer protective film and a polarizer. The sum S of the product of the modulus of elasticity and the cube of the thickness in each layer is up to 150,000 Pa·mm3, and the value obtained by dividing the sum S by the Knoop hardness k of the outer protective film is 200 or more but up to 450. The polarizing plate is excellent in surface pencil hardness even when its thickness is reduced.

Abstract: The present invention provides a thin polarizing film which has only a small environmental load and has excellent optical characteristics. The thin polarizing film is produced by forming a polyvinyl alcohol-based resin layer on a thermoplastic resin substrate. The thin polarizing film has a thickness of 10 ?m or less, a single axis transmittance of 42.0% or more, a polarization degree of 99.95% or more, and an iodine content of 17.6 grams per 400×700 square millimeters or less, which is measured by an ion chromatography method.

Abstract: To provide an inorganic polarizing plate which, when used in structures having different used wavelength bands, can reduce reflectance by using a common structure, making it possible to achieve a predetermined light extinction ratio. The inorganic polarizing plate has a substrate that is transparent to light in a used bandwidth, a reflective layer that is composed of grids that are formed on one surface of the substrate with a pitch that is smaller than a wavelength of light in the used bandwidth, a dielectric layer that is stacked on the reflective layer, and an absorbing layer containing FeSi fine particles.

Abstract: A projection system includes at least one projector and a holographic projection film. The projector projects a first image to a projection surface. The holographic projection film mirrors the first image on the projection surface to form a second image on an imaging surface. The projection surface and a standard surface define a first angle therebetween. The first angle is Y degrees. The holographic projection film and the standard surface define a second angle therebetween. The second angle is 45+X degrees. Y and X substantially satisfy: Y=2X.

Abstract: A display module including a backlight module and a display panel is provided. The backlight module includes a light guide plate and a light source module. The light guide plate has a light incident surface, a light-exiting surface, a light-guiding inclined surface, a bottom surface, and a lateral surface, wherein the light-guiding inclined surface is connected to the light incident surface and the light-exiting surface; the light incident surface, the light-guiding inclined surface, and a portion of the bottom surface constitute a wedge portion while the light-exiting surface, the lateral surface, and other portions of the bottom surface constitute a plate portion. The light source module is disposed at the light incident surface and emits light into the wedge portion. The display panel is disposed on the light guide plate and has a side. The side of the display panel has a projection disposed in the light-guiding inclined surface or the plate portion.

Abstract: A bottom chassis includes a base chassis which accommodates a light source part emitting a light, a reflective film disposed on a bottom plate of the base chassis and including a reflective material to reflect the light, a cladding film disposed on the reflective film, and a light guide film disposed on the cladding film, receiving the light from the light source part through a first surface thereof, and guiding the received light to exit through a second surface thereof as a plane light, where the cladding film has a refractive index smaller than a refractive index of the light guide film.

Abstract: A light guide plate includes an extracting light guide layer having a pair of main surfaces. The extracting light guide layer includes a base portion having a pair of main surfaces, and a plurality of light diffusing portions provided in the base portion. The light guide plate can obscure extracting elements for extracting light.

Abstract: Provided is a backlight unit, which includes at least one supporter, at least one light guide panel, and at least one light emitting module. The supporter includes a recess stepped at a lower height than that of a first region of an upper surface. The light guide panel is disposed on the supporter and is coupled to the supporter. The light emitting module is disposed in the recess of the supporter and provides light through a side surface of the light guide panel.

Abstract: An image pickup apparatus includes an imaging optical system; an image pickup device; and an optical fiber bundle constituted by plural optical fibers configured to guide light from the imaging optical system to the image pickup device. A light incident surface of the optical fiber bundle is concave with respect to the imaging optical system. An optical fiber distant from an optical axis of the imaging optical system satisfies: ? + sin - 1 ? [ sin ? ( ? - ? ) N ? ? 1 ] - cos - 1 ? ( N ? ? 2 N ? ? 1 ) ? ? < ? where ? is an inclination angle of the optical fiber with respect to the optical axis, ? is an inclination angle of the light incident surface with respect to the optical axis, ? is an angle, with respect to the optical axis, of a principal ray from the imaging optical system incident on the optical fiber, N1 is a refractive index of a core of the optical fiber, and N2 is a refractive index of a clad of the optical fiber.

Abstract: A beam combiner is disclosed that comprises a planar lightwave circuit that is based on undoped silicon nitride-based surface waveguides, wherein the planar lightwave circuit comprises a plurality of input ports, a mixing region, and an output port, and wherein the mixing region comprises a plurality of directional couplers that are arranged in a tree structure. Embodiments of the present invention are capable of combining a plurality of light signals characterized by disparate wavelengths on irregular spacings with low loss. Further, the present invention enables high-volume, low cost production of beam combiners capable of combining three or more light signals into a single composite output beam.

Abstract: The invention can prevent a leading end of a ferrule including a core portion from being damaged in an erroneous insertion. A shutter plate is provided with a clearance for receiving in a non-contact manner a leading end portion of a ferrule which is inserted from a diagonally upward direction side before a fitting portion. The clearance is formed into a rectangular shape, a trapezoidal shape, a circular arc shape, a bowl-like recess shape or an opening shape from a front surface side of the shutter plate toward an inner side, and the shutter plate is structured such that the shutter plate is pushed away and opened by a leading end opening edge portion of a coupling sleeve which is provided so as to cover a periphery of the ferrule, at the same time of receiving the leading end portion of the ferrule by the clearance in a non-contact state.

Abstract: Apparatus and methods for stripping tight-buffered optical fibers are disclosed. The apparatus is configured to perform one or more of the functions of stripping a tight buffer layer, removing a coating layer, and cleaving the fiber, in a single motion.

Abstract: A waveguide polarization rotator includes a substrate having a surface and a waveguide coupled to the surface of the substrate and operable to support a light beam along a direction of beam propagation. The waveguide includes a slab having a support surface and a second surface opposing the support surface and a rib protruding from the second surface of the slab in a direction substantially normal to the surface of the substrate and extending along the direction of beam propagation. The rib includes a first portion extending to a first height above the second surface of the slab and a second portion adjacent to the first portion and extending to a second height above the second surface of the slab. The second height is less than the first height.

Abstract: An optical probe has an optical fiber, a deflecting element, and a protective tube. The optical fiber includes a glass filament having a first diameter for transmitting light between the proximal and distal ends thereof and a resin layer for covering the filament except for the distal end thereof. The deflecting element is made of glass in a circular form having a second diameter larger than the first diameter, and it is connected with the optical fiber and has an end-face having a normal vector whose angle relative to the central axis is larger than the critical angle. The protective tube surrounds a portion of the optical fiber and the entire length of the deflecting element and is adhered to the side of a deflecting optical element, whereas the inside diameter of the part covering the optical fiber is smaller than that of the part covering the deflecting element.

Abstract: Fiber burning and/or overheating of the fiber feedthrough in high-power laser modules, which may cause catastrophic and/or collateral damage, may be addressed by providing an optical fiber assembly designed to withstand overheating due to errant high power laser light that is directed toward the input core of a fiber but may be at least partially misaligned. The optical fiber may be secured within a mount having a passageway such that the end face of the optical fiber extends past an opening of the passageway to a focal plane of the incident light. The end of the optical fiber may include a section that has a reduced or absent cladding layer (e.g., etched to form a tapered cladding region) so as to reduce the amount of light captured by the cladding and/or to leak the light out quickly.

Abstract: The present disclosure relates to optical touch sensing technology. Provided is an apparatus comprising an emitting optical waveguide comprising input and output areas, an emitting optical distributed band pass filter disposed at the output area, a receiving waveguide disposed at a spaced apart location from the emitting waveguide, and a receiving distributed band pass filter at an input area of the receiving waveguide. The apparatus may comprise a tunable light source for cycling through a plurality of frequency bands of light for scanning a length of the waveguides for an obstruction (e.g. a touch). The apparatus may be used in place of the plurality of light source/photo detector pairs found in conventional touch screen devices.

Abstract: A grating-coupler assembly with a small mode-field diameter for photonic-integrated-circuit systems is disclosed. The assembly includes a silicon waveguide supported by a silicon-on-insulator substrate, and a grating coupler supported by the substrate and optically coupled to the silicon waveguide. The assembly has an optical fiber with a mode-field diameter in the range from 5 ?m to 6 ?m. One end of the optical fiber is disposed adjacent the grating coupler to define a coupling efficiency of 0.7 or greater.

Abstract: Optical switch based on a micro-mirror device such as a DMD for simultaneous switching light from N inputs to M outputs with switching times of about 10 microseconds, where N and M are generally greater than one. The mirrors of the device are oriented according to a pattern calculated based on a Fourier Transform of spatial distribution of M outputs such as to form, in diffraction of light incident on the device, an diffraction light pattern that in the output plane is substantially congruent with the spatial distribution of M outputs. The device can be configured as a modulator of amplitude and/or a modulator of phase of incident light wavefront.

Abstract: A communications connection system includes an SC fiber optic connector including a storage device having memory configured to store physical layer information. The storage device also includes electrical contacts or an RFID antenna coil connected to the memory for transmitting information to a management system. The communications connection system also includes a fiber optic adapter module having one or more media reading interfaces. Each media reading interface is configured to read physical layer information stored on one of the fiber optic connectors received at the adapter module. Example media reading interfaces include electrical contacts and RFID readers.

Abstract: A pluggable module is provided and includes a plug receptacle in which a plug is receivable, a housing coupled to the plug receptacle, a heat removal device partially disposable within the housing to assume and be movable between first and second positions and an armature. The armature is interposed between corresponding portions of the housing and the heat removal device and is configured for selective manipulation to thereby move the heat removal device from the second position to the first position. With the plug received in the plug receptacle and the heat removal device in the first position, the heat removal device forms a thermal pathway with the plug by which heat is removed from the plug.

Abstract: A fabrication method for an optical connector, includes: inserting an optical waveguide sheet, in a direction of an optical path of the optical waveguide sheet, into an insertion hole of an optical connector including lenses disposed in a juxtaposed relationship on a first end face of the optical connector, the insertion hole extending from a second end face of the optical connector at an opposite side to the first end face toward the lenses; and performing first adjustment of adjusting a position of a tip end of the optical path with respect to the lenses by pressing a side end portion of the optical waveguide sheet inserted in the insertion hole from at least one of sides of a first direction along a disposition direction of the lenses, through a first hole portion that is provided in the optical connector and extends to the insertion hole.

Abstract: A cut sleeve for a fiber optic connector adapter includes a cylinder having a discontinuity along an axial length of cylinder. The discontinuity is distributed around at least half of a circumference of the cylinder. The cylinder is sized to receive a first fiber ferrule and a second fiber ferrule with cross-sections having a same size minimum bounding circle.

Abstract: A clip for keeping a first ferrule and a second ferrule in contact with each other includes a base member, one or more spring sections formed at the base member and configured to apply an elastic force to the first ferrule in a contact direction in which the first ferrule and the second ferrule come in contact with each other, and one or more engaging sections formed at the base member and configured to have higher rigidity in the contact direction than in other directions, wherein the engaging sections are configured to engage with the second ferrule.

Abstract: An electronic device having an optical connector that provides and/or receives optical signals through openings or perforations formed at an external surface of the electronic device. These openings can serve as the interface of the optical connector through which the electronic device can engage in one-way or two-way communication with corresponding optical connectors of other electronic devices. These openings can be sized such that they are not visible or not easily visible with the naked human eye. As such, these openings can be too small for communicating with corresponding optical connectors using any single one of these openings. But light that is collectively transmitted through or received through a group of these openings can provide optical signals that can be used to communicate with corresponding optical connectors using optical signals.

Abstract: A device includes integrated circuit chips mounted on one another. At least one component for protecting elements of a first one of the chips is formed in a second one of the chips. Preferably, the chips are of SOI type, the second chip includes an SOI layer having a first thickness sufficient to support the component for protecting elements. The first chip also includes an SOI layer but having a second thickness smaller than the first thickness that is insufficient to support the component for protecting elements. The SOI layer of the second chip may be an optical waveguide layer.

Abstract: An optical module includes: a transparent substrate through which light can pass; a photoelectric conversion element mounted on the transparent substrate and emitting light toward the transparent substrate or receiving light having passed through the transparent substrate; and a support member supporting an optical fiber for transmitting light, the support member and the transparent substrate forming an optical path between the photoelectric conversion element and the optical fiber. A positioning hole is formed in the transparent substrate. A positioning pin having a tapered surface is formed on the support member. The transparent substrate and the support member are positioned with respect to one another by inserting the positioning pin into the positioning hole along the optical axis direction of light between the transparent substrate and the support member and by making the tapered surface of the positioning pin contact the edge of the positioning hole without leaving any space therebetween.

Abstract: A multi-core optical fiber ribbon easily optically connected to another optical component is provided. A multi-core optical fiber ribbon 1 includes a plurality of multi-core optical fibers 10 arranged parallel to one another and a common resin 20, with which the plurality of multi-core optical fibers 10 are collectively coated. A core arrangement direction in which plurality of cores in each of the plurality of multi-core optical fibers 10 are arranged is parallel to or perpendicular to the fiber arrangement direction in which the plurality of multi-core optical fibers 10 are arranged at least at both ends of the multi-core optical fiber ribbon 1.

Abstract: An optical fiber cable is formed with an optical fiber and a coating layer made up of at least one layer provided on the outer periphery of the optical fiber. The material for forming the coating layer is made of a halogen-free resin composition containing polyolefin resin (A) and melt tension enhancer (B).

Abstract: A cable exit trough is mountable to a lateral trough section either during initial assembly of the cable routing system, or at a later date. The exit trough includes a bracket portion mountable to the top edge of one of the sides of the lateral trough section. Two lead-ins are provided to lead the cable in an upward direction from the lateral trough section to the exit trough. The exit trough includes an exit trough portion extending from the bracket portion upwardly away from the lateral trough section. The exit trough portion includes a convexly curved bottom trough surface, and two convexly curved upstanding sides. The exit trough portion and the lead-ins define a cable pathway from the lateral trough section to an exit point of the exit trough portion which can either lead downwardly relative to the lateral trough section, or horizontally.

Abstract: Teachings of the present disclosure relate to a pulling sleeve for pulling a cable through a conduit. The pulling sleeve is mounted over fibers of a fiber optic cable and a plurality of fiber optic connectors associated with the fibers. The pulling sleeve includes an elongated body formed of two mating pieces to include an interior cavity to receive and house the fibers. The two mating pieces may include half-pieces. The elongated body of the pulling sleeve includes a length that extends along a central axis between first and second ends, where the first end of the elongated body includes a pulling eye. Also, the elongated body of the pulling sleeve defines a plurality of axially spaced-apart circumferential notches for enhancing flexibility along its length. The axially spaced-apart circumferential notches enable the elongated body of the pulling sleeve to conform to a curved conduit path.

Abstract: A binocular has a folding bridge for adapting the distance between the eyepieces to the interpupillary distance of the eyes of the user. A synchronous focusing of the two telescopes is brought about via a differential gear assembly which drives respective spindle drives for corresponding ones of the two telescopes. The conversion of the rotational movement into an axial linear displacement of the focusing element of the optics occurs only at the end of the corresponding spindle drive.

Abstract: A first lens unit performing communication with an image pickup apparatus with a first voltage and a second lens unit performing communication with the image pickup apparatus with a second voltage are selectively attached to the image pickup apparatus. The image pickup apparatus includes a controller configured to operate with a third voltage different from at least one of the first and second voltages to output a signal for the communication with the first and second lens units, and a determiner configured to determine the type of the lens unit attached to the image pickup apparatus. The controller is configured to produce, as a voltage of the signal for the communication, from the third voltage, one of the first and second voltages corresponding to a determination result of the determiner.

Abstract: A mirror driving device includes a lead screw configured to be driven by a drive source, a mirror member configured to be movable between a mirror-down position and a mirror-up position, a mirror driving member configured to rectilinearly move to drive the mirror member between the mirror-down position and the mirror-up position, and a restriction unit configured to switch between a restriction state that restricts a rectilinear movement of the mirror driving member and a restriction release state that releases the restriction state. The restriction unit switches between the restriction state and the restriction release state without allowing the mirror driving member to rectilinearly move when the mirror member is in the mirror-up position or the mirror-down position, and the mirror driving member rectilinearly moves in conjunction with driving of the lead screw after the restriction unit switches from the restriction state to the restriction release state.

Abstract: Provided is an imaging apparatus, including: an imaging optical system including a plurality of lenses; and an image plane which is disposed on an image side of the imaging optical system and is curved so that a concave surface thereof faces an object side of the imaging optical system. The imaging optical system includes an aperture stop. In the imaging optical system, a lens closer to the object side than the aperture stop and a lens closer to the image side than the aperture stop have different positive powers. A focal length of the imaging optical system is substantially equal to a distance from an exit pupil of the imaging optical system to the image plane. A radius of curvature of the image plane is substantially equal to the focal length of the imaging optical system.

Abstract: An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a positive refractive power and has a meniscus shape which is convex toward the object side, a second lens that has a negative refractive power and has a meniscus shape which is concave toward an image side, a third lens that has a meniscus shape which is convex toward the image side, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has at least one inflection point on an image side surface. Further, the imaging lens satisfies predetermined conditional expressions.

Abstract: An imaging lens composed of six lenses of a negative first lens, a positive second lens, a negative third lens, a positive fourth lens, a positive fifth lens, and a negative sixth lens, disposed in order from the object side, and when refractive indices of the third lens to the sixth lens are taken as Nd3 to Nd6 respectively, the imaging lens satisfies conditional expressions (1): Nd3<1.7, (2): Nd4<1.6, (3):Nd5<1.6 and (4): Nd6<1.89.

Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens may comprise an aperture stop and six lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements and designing parameters satisfying at least one inequality, the optical imaging lens may exhibit improved optical characteristics and the total length of the optical imaging lens may be shortened.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, and a rear lens group having a plurality of lens units at least one of which has positive refractive power. The distance between the first lens unit and the second lens unit is greater at a telephoto end than at a wide angle end. The first lens unit includes a positive lens and a negative lens. The rear lens group includes a lens unit R comprising a positive lens and a negative lens. The lens unit R has the highest zoom ratio among the lens units included in the rear lens group. The materials of the positive and negative lenses included in the first lens unit and in the lens unit R are selected appropriately based on predetermined mathematical conditions.

Abstract: A wide-angle lens having a field angle larger than 180 degrees includes, in order from an object side to an image side, a front group, a reflection surface, and a back group, wherein the front group includes three lenses having a negative refractive power, the reflection surface is configured to curve an optical axis of the front group at 90 degrees toward the back group, the back group includes four lenses having a positive refractive power, a front principle point is set between a second lens and a third lens from the object side in the front group, and a focal length of an entire system f and a distance between an intersection of the reflection surface and the optical axis of the front group and the front principle point d satisfy the following condition (1). 7.0<d/f<9.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having positive refractive power, a second lens unit having negative refractive power, a third lens unit having positive refractive power, and a rear lens group including one or more lens units. An interval between adjacent lens units is changed in zooming, the first lens unit is moved closer to the object side at a telephoto end than at a wide-angle end. The first lens unit includes at least four lenses. An Abbe number and a material of a positive lens included in the first lens unit satisfy predetermined values. And, a focal length f1 of the first lens unit, and an amount of movement M1 of the first lens unit at zooming from the wide-angle end to the telephoto end are appropriately set.

Abstract: Composing, in order from an object side: a first lens group having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; a fourth lens group having positive refractive power; and a fifth lens group having positive refractive power; upon zooming from a wide-angle end state to a telephoto end state, a distance between the first lens group and the second lens group, a distance between the second lens group and the third lens group, a distance between the third lens group and the fourth lens group and a distance between the fourth lens group and the fifth lens group being varied; and the given conditional expressions being satisfied; thereby providing a small-size variable magnification optical system having a high zoom ratio and an excellent optical performance.

Abstract: A luminaire includes a earner having a mounting surface, at least two % M-emitting diodes, each light-emitting diode having a radiation exit surface, an optical element having a radiation entrance surface, wherein the light-emitting diodes are arranged on the mounting surface of the carrier, the optical element is arranged on a side of the light-emitting diodes facing away from the carrier, and the radiation exit surface of each light-emitting diode is optically coupled to the radia?on entrance surface of the optical element.