Abstract: The present technology provides an illustrative method for preparing fibers with desirable optical characteristics. The method includes providing a fiber that comprises a core layer and a cladding layer located around the core layer. The method further includes applying a nanostructure template to the cladding layer to form one or more photonic nanostructures having nanostructure scales and compressing the core layer to cause the core layer to bulge and form air gaps between the core layer and the one or more photonic nanostructures.

Abstract: The first aspect of the instant claimed invention is a method of formulating radiation curable Supercoatings for application to an optical fiber used in a telecommunications network. A Multi-layer Film Drawdown Method useful in the Method of formulating radiation curable Supercoatings is also described and claimed. Single mode Optical fibers coated with specific radiation curable Supercoatings are also described and claimed.

Abstract: A LGP plate-to-plate manufacturing includes the steps of: preparing an optical substrate with a first surface and a second surface; mechanically extruding a first integrated microstructure on the first surface of the optical substrate; coating an optical layer on the first or second surface of the optical substrate; and curing the optical layer to directly form a second microstructure on the first or second surface of the optical substrate; wherein the first integrated microstructure and the second microstructure are separately formed at a time to provide a light guide plate structure. In an embodiment, an additional optical layer is provided on the optical substrate.

Abstract: The first aspect of the instant claimed invention is a method of formulating radiation curable Supercoatings for application to an optical fiber used in a telecommunications network. A Multi-layer Film Drawdown Method useful in the Method of formulating radiation curable Supercoatings is also described and claimed. Single mode Optical fibers coated with specific radiation curable Supercoatings are also described and claimed.

Abstract: A transfer molding method has a transfer molding step of performing transfer molding to a resin sheet between a first die and a second die, which are disposed while facing each other, by heating at least one of the first and second dies, and a cooling step of cooling the resin sheet. The cooling step includes a first cooling step of cooling the resin sheet while an applied pressure is maintained at a first setting value smaller than a value of an applied pressure in the transfer molding step, and a second cooling step of cooling the resin sheet while the applied pressure is reduced to a second setting value smaller than the first setting value.

Abstract: A method comprises depositing an optical filter layer on a glass wafer, then cutting the wafer into dice. The dice are positioned on a carrier and encapsulated in a molding compound to form a reconstituted wafer, and the wafer is back-ground and polished. Lens faces are positioned on opposing surfaces of the glass dice and spacers are positioned on one side of the wafer. The wafer is then cut into lens modules, each having two side-by-side lenses with an opaque molding compound barrier between. The individual modules are attached to devices that require dual lenses, such as, e.g., proximity sensors that use a light source and a light receiver or detector.

Abstract: An optical device, in particular for an automotive vehicle, such as a lighting or signaling device, comprising at least one light source, and at least one light guide designed to guide at least some of the light emitted by the light source, the light guide comprising at least one output face and at least one reflection face designed to reflect, towards the output face, light being propagated in the guide, wherein the light guide exhibits a cylindrical sheet form and/or the output face is not completely planar.

Abstract: An article of manufacture includes first and second micro-features of well-defined shape. In some embodiments, the article of manufacture is a light guide or redirecting film and the second micro-features are micro-optical elements configured to disrupt a specular optical path that includes the second micro-optical element. In other embodiments, the article of manufacture is a patterning tool for use in making an optical substrate. Embodiments of the optical substrate are formed by injection molding or embossing using the patterning tool.

Abstract: A fiber-optic (FO) element-based sensing probe for use in monitoring parameters of a biological environment. A straight FO-element, embedded and cast in a polymeric body of the probe delivers excitation light from a light source on one side of the FO-element to a chamber, inside the body, that is filled with an indicator matrix responsive to the excitation light and to the presence of a biological environment. The same straight FO-element collects light from the chamber and delivers it, in an opposite direction, from the chamber to an optical detector. The chamber may be configured to be co-axial with the FO-element and to have a transverse dimension, across the axis of the FO-element, exceeding the outer diameter of the core of the FO-element. A membrane permeable to an analyte of the biological environment is disposed in a recess of the chamber adjoining the aperture defined by the chamber in an outer side surface of the polymeric body.

Abstract: Various embodiments are disclosed herein that relate to the molding of an item having a non-uniform thickness and an undercut structure. One disclosed embodiment provides an injection molding device for molding a part having a non-uniform thickness and an undercut structure, the injection molding device comprising a pair of opposing end walls, a first mold surface being stationary with respect to the pair of opposing end walls, and a second mold surface being movable toward the first mold surface such that a first end of the second mold surface is movable a larger travel distance toward the first mold surface than a second end during a molding process. Further, the pair of opposing end walls comprises a slider with an undercut mold surface that is movable in a direction transverse to a direction in which the second mold surface is movable toward the first mold surface.

Abstract: Embodiments of the invention relate to a light guide plate, a method for fabricating the same and a backlight unit. The light guide plate comprises a low density region and a plurality of high density regions, wherein the plurality of high density regions are separately disposed on a light incident side of the light guide plate.

Abstract: Various embodiments are disclosed relating to fabrication of an optical wedge. For example, one embodiment provides a method for manufacturing an optical wedge comprising inserting a wedge blank into a vacuum molding tool and applying a vacuum to the vacuum molding tool to temporarily hold the wedge blank against a molding surface of the vacuum molding tool. The method further comprises removing a layer from a top surface of the wedge blank to expose a machined surface of the wedge blank, and casting a finish layer on the machined surface to form a finish layer of a finished optical wedge.

Abstract: A non-zero dispersion shifted optical fiber (NZDSF) includes a central core, an inner cladding, and an outer cladding. The central core has an outer radius r1 and a maximum refractive index difference Dn1 with respect to the outer cladding. The inner cladding includes a first intermediate cladding and a buried trench. The first intermediate cladding has an outer radius r2 and a refractive index difference Dn2 with respect to the outer cladding. The buried trench has an outer radius r3, a width w3, and a negative refractive index difference Dn3 with respect to the outer cladding. In some embodiments, the inner cladding includes a second intermediate cladding having an outer radius r4 and a refractive index difference Dn4 with respect to the outer cladding. For a radius of curvature of 30 millimeters at a wavelength of 1625 nanometers, the optical fiber typically exhibits bending losses of about 0.5 dB/100 turns or less.

Abstract: A light-conducting component, in particular finished concrete part in the form of a masonry brick, for constructions and building. The component is produced in a casting mold by casting into at least one casting building material and the optical waveguide is made of a light-conducting building material, e.g. PMMA polymer or glass, which is accessible at at least two positions on the outer surface of the light-conducting component for the input of light and output of light. The optical waveguide is configured as a self-supporting 2D or 3D lattice body composed of rods having a thickness/diameter of greater than 1 mm. The self-supporting 2D or 3D lattice body has approximately the same or an only slightly smaller width (W), or length (L), or base dimensions (W, L), or total external dimensions (W, L, H) than the casting mold itself.

Abstract: A low cost molded optical probe with astigmatic correction, fiber port, low back reflection, and highly reproducible in manufacturing quantities is provided. The molded optical probe, includes a fiber receiving portion defining a groove defined along a longitudinal axis for receiving an optical fiber; a spacer portion having a spacer portion surface non-orthogonal to the longitudinal axis of the groove, the spacer portion surface configured to cooperate with a distal end of the optical fiber; a prism portion positioned adjacent the spacer portion and having a prism surface non-parallel to the spacer portion surface and non-orthogonal to the longitudinal axis and configured to reflect light transmit through the optical fiber off perpendicular to the longitudinal axis; and a lens portion positioned adjacent the prism portion and having a lens surface configured to focus light received through the optical fiber.

Abstract: There is provided an aromatic polycarbonate resin composition exhibiting excellent mechanical strength, transfer property, light transmittance, thermal stability and moldability which is capable of being molded into thin-wall products and large-size products, as well as a light guide plate produced from the resin composition. The present invention relates to an aromatic polycarbonate resin composition for light guide plates, comprising an aromatic polycarbonate resin having a viscosity-average molecular weight of 13,000 to 15,000, and a ratio of a weight-average molecular weight to a number-average molecular weight (Mw/Mn) of 1.5 to 2.7 in terms of polystyrene as measured by gel permeation chromatography; and a stabilizer and a releasing agent blended in the aromatic polycarbonate resin, as well as a light guide plate produced from the resin composition.

Abstract: A method is proposed for access to optical fibres contained in an optical module, with a flexible structure for example, of an optical fibre transmission cable. The optical module includes a protective sheath in which the optical fibres are housed. Such a method includes: extracting the optical module from the transmission cable; degrading a portion to be stripped of the sheath of the optical module by heating to a specific temperature, for a predetermined duration; and accessing the optical fibres by stripping the portion to be stripped that has been degraded.

Abstract: A method for fabricating a light guide plate includes the following steps. Injection molding a light guide plate to obtain a light guide plate with a stub. Cutting away the stub to obtain a light guide plate with a cut edge. Providing a thermal resetting apparatus having an nano release material layer. A thermal melting temperature of the nano release material layer is higher than that of the light guide plate, heating the thermal resetting apparatus to make a temperature of the nano release material layer higher than the thermal melting temperature of the nano release material layer. And resetting the cut edge of the light guide plate by contacting the nano release material layer of the thermal resetting apparatus with the cut edge of the light guide plate to obtain a light guide plate with a smooth edge.

Abstract: Provided are an opto-electric hybrid board and a manufacturing method. The opto-electric hybrid board includes an optical waveguide unit and an electric circuit unit having an optical element mounted thereon. The optical waveguide unit includes socket portions for locating the electric circuit unit, which are formed on a surface of an undercladding layer and formed of the same material as a core. The socket portions are located at predetermined locations with respect to one end surface of a core. The electric circuit unit includes bent portions which are formed by bending a part of an electric circuit board so as to stand, for fitting into the socket portions. The bent portions are located at predetermined locations with respect to the optical element. The optical waveguide unit and the electric circuit unit are coupled in a state in which the bent portions fit into the socket portions.

Abstract: A light guide pate includes: a light guide member with a light incident surface and first and second principal surfaces; and first and second protrusions formed on at least one of the first and second principal surfaces. When the first principal surface is viewed in a normal direction, a distance between the light incident surface and the second protrusion is larger than a distance between the light incident surface and the first protrusion; each of the first and second protrusions has a shape, a length of which in an orthogonal direction orthogonal to a propagation direction of light incident from the light incident surface increases monotonously in the propagation direction; and a minimum value of the length of the second protrusion in the orthogonal direction is larger than a maximum value of the length of the first protrusion in the orthogonal direction.

Abstract: An optical transmission module has an optical transmission path in which optical transmission is performed between a first circuit board and a second circuit board disposed opposite the first circuit board. The optical transmission path has a folded structure having a bending radius. A circumferential portion drawn by the bending radius is provided substantially perpendicular to board surfaces of the first circuit board and the second circuit board.

Abstract: A light diffuser panel for coupling to an optical element, includes a substrate with a first surface that is diffusive to a plurality of wavelengths of light and a second surface, wherein the substrate comprises a material with a refractive index nin that is greater than a refractive index nd of a medium outside of the first surface, ?min is a minimum wavelength of the plurality of wavelengths of light, ?max is a maximum wavelength of the plurality of wavelengths of light, the first surface is a diffractive grating surface with a grating period P, the grating period P is greater than ?max/(nd+nin), and P is smaller than ?min.

Abstract: A method for manufacturing an optical component, the method includes taking an image of an end face of an optical waveguide component including a core and a cladding, aligning a position of the core with a position of a mold, on a basis of the position of the core within the taken image, and forming a lens on a surface of an optical film positioned at the end face of the optical waveguide component by pressing the mold onto the optical film.

Abstract: Provided is a release film for producing a light emitting diode having desired concaves and convexes accurately transferred directly to the surface of a resin-sealed portion, at a low cost and in high yield, and a process for producing a light emitting diode. A release film 10 having a plurality of convex portions (convex stripes 12) and/or concave portions (grooves 14) formed on the surface is used as a release film to be placed in a cavity of a mold for forming a resin-sealed portion to seal a light emitting element of a light emitting diode.

Abstract: The present invention relates to a method for producing light guide bodies and to their use in lighting units, for example for liquid crystal displays or for monitors. In particular, the present invention relates to a method for producing light guide bodies which have a thickness of at most 1 mm and contain at least 80 wt % of polymethyl methacrylate and no light-scattering constituents.

Abstract: An optical cable includes an optical fiber, a primary coating coated on the optical fiber, and an outer coating coated on the primary coating. The optical cable is spiral, and can be compressed or stretched. The outer coating comprises about 40 to 70 weight percent of caoutchouc, about 20 to 50 weight percent of neoprene, about 0 to 6 weight percent of magnesium oxide, about 0 to 6 weight percent of zinc oxide, and about 0 to 6 weight percent of vulcanization accelerator.

Abstract: A fabricating method of grid points on light guiding plate, a fabricating method of light guiding plate, and a backlight module comprising the light guiding plate fabricated by the fabricating method of light guiding plate and a display device. The fabricating method of grid points on a light guiding plate comprises following steps of: forming a layer of photosensitive material on a mold for the light guiding plate (S1); and performing photolithography on the photosensitive material in order to form grid points on the light guiding plate (S2). Since the mold for the light guiding plate is not etched directly, the grid points on the light guiding plate can be made without damaging the surface of the mold for the light guiding plate, and the cost for polishing the mold surface is saved and the overall process is simplified.

Abstract: A light guide member includes an optical fiber layer and a light diffusion layer formed on the optical fiber layer. The optical fiber layer has a light incident side surface, the optical fibers are parallel with each other, and ends of the optical fibers are exposed to the light incident side surface. The light diffusion layer has a number of light scattering particles dispersed therein. The light diffusion layer has a light output top surface, and the light output top surface has a number of netted dots configured for diffusing light. Light enters the optical fibers and transmits through a wall of the optical fibers to reach at the light diffusion layer and finally output from the light output top surface of the light diffusion layer. A backlight module and a method for making the light guide member are also provided.

Abstract: The present invention provides a method of manufacturing a nano-layered light guide plate comprising, forming by a coextrusion method a multi-layered molten sheet comprising a plurality of two or more different alternating material layers and casting the coextruded sheet into a nip between a pressure roller and a pattern roller to form a nano-layered sheet having a discrete micro-pattern on at least one principal surface thereof. In addition, the invention further provides cutting and finishing the extruded micro-patterned sheet to form the nano-layered light guide plate, comprising a plurality of two or more different alternating material layers, with each layer having a thickness of less than a quarter wavelength of visible light.

Abstract: This invention relates to an improvement for applying a layered structure onto a convex surface of a lens. After thermoforming the layered structure, a curvature direction of the layered structure is inverted. The structure is then applied on the lens surface by continuously pushing the structure against the lens surface, starting from a contact point between a convex surface of the structure and the convex surface of the lens. The curvature direction of the layered structure is then inverted again, so that it recovers the curvature direction that resulted from thermoforming. Stresses within the layered structure are then reduced, and the structure can be assembled with the lens without defects.

Abstract: A method of making lenses includes the following steps: A. Provide a photo-curing material into a cavity between a first die and a second die. B. Expose the photo-curing material under predetermined light, whereby the photo-curing material is solidified, and a transmittance of the solidified photo-curing material is greater than 75%. C. Remove the first die and the second die to obtain a lens material; and D. Cut the lens material to obtain a plurality of lenses.

Abstract: The present description is directed to a method for fabricating an electrophoretic display device that includes: forming a partition wall on a first substrate; filling a charged particle slurry in a three-dimensional space sectioned by a photo-curable or thermosetting resin layer and a sealant defining an edge on the resin layer; and combining the first substrate and the photo-curable or thermosetting resin layer together to have the partition wall immersed in the charged particle slurry, which fabrication method minimizes the defective proportion of final products and provides an electrophoretic display device with a high contrast ratio and enhanced visibility to implement high-quality text.

Abstract: The present invention reduces generation of unevenness on a surface by adjusting unevenness of a reflection pattern in a case where the reflection pattern is formed by an ultrasonic process.

Abstract: A method of manufacturing an optical waveguide device, the method includes: inserting an inclined surface of a mold which is inclined relative to a surface of a substrate including an optical waveguide member into a through hole in which the optical waveguide member is exposed from one surface side of the substrate; locating an optical component above an opening of the through hole on the other surface side of the substrate; injecting an underfill material into between the optical component and the other surface and into the through hole; and curing the underfill material to form a mirror surface.

Abstract: A transparent anti-reflective structured film (10) comprising a structured film substrate (12) having a structured face (14), with anti-reflective structures, for example, in the form of prismatic riblets (16) defining a structured surface. The structured face is anti-reflective to light, with at least a substantial portion of the structured surface comprising a glass-like surface. At least the anti-reflective structures comprise a cross-linked silicone elastomeric material and the glass-like surface comprises an Si02 stoichiometry. A solar light energy absorbing device is disclosed, comprising the transparent anti-reflective structured film disposed so as to be between a source of light energy and a light energy receiving face of a light absorber, when light energy is being absorbed by the light absorber.

Abstract: An optical waveguide device (10) comprises a planar substrate with a lower cladding layer (14), a core layer (16) and an upper cladding layer (18), a groove (20) in the substrate that extends at least into the core layer (16), and a waveguiding channel (22) in the core layer (16), wherein at least a part of the waveguiding channel (22), which may contain a Bragg grating, is sufficiently proximate to the groove (20) in the plane of the substrate for an evanescent field of light propagating in the waveguiding channel (22) to extend laterally into the groove (20). Material contained in the groove modifies the properties of the waveguiding channel, so that a sample of material can be analysed or an active material can be used to modulate the propagating light. The groove (20) can be made before the waveguide (22). The groove (20) can be made by cutting into the substrate with a saw and the waveguide (22) can be made by direct writing in the core layer (16) with an ultraviolet beam.

Abstract: A modified optical fiber comprises one Surface Light Field Emulation (s-LiFE) segment, comprising a core; a cladding; and multiple controlled nanoscale diffusion centers to emit light through the side of the optical fibers. Optionally, the modified optical fiber has a coating. The nanoscale diffusion centers are physical geometric patterns or composition patterns in the cladding or the coating. The s-LiFE optical fiber is a member of an illumination system further comprising a light source. The method of making of said s-LiFE optical fiber comprises a fiber spooning step.

Abstract: A method for manufacturing a flexible optical plate includes steps of: (A) positioning a metallic mask on a surface of a mother substrate; (B) irradiating a carbon dioxide laser beam through the metallic mask to form cavities on the surface of the mother substrate; (C) coating a polymer material on the surface of the mother substrate to fill the cavities; and (D) drying the coated polymer material to form the flexible optical plate, the flexible optical plate having a substrate on the surface of the mother substrate and microstructures protruding from the substrate and each corresponding to one of the cavities.

Abstract: The invention relates to a photonic crystal magneto-optical circulator, which comprises first dielectric material columns in an air background, wherein the first dielectric material columns are arranged in the form of two-dimensional square lattice.

Abstract: Methods for making fiber waveguides include rolling a multilayer structure into a spiral structure and forming the fiber waveguide from the spiral structure. The forming includes drawing a fiber preform derived from the spiral structure.

Abstract: An exemplary light guide plate includes a top light emitting surface, a bottom surface, and a light incident surface. The light incident surface is between the light emitting surface and the bottom surface. The bottom surface defines a plurality of hemispherical micro grooves arranged in an array, a maximum depth of each micro groove along a direction perpendicular to the bottom surface is H, each micro groove has a circular opening, a diameter of the opening is D, and D:H=10:1.

Abstract: A method of forming a lighting system comprises providing a cavity having at least a first array of first optical elements and a second array of second optical elements that have a different shape than the first array, filling the cavity with a curable resin, applying a secondary optical element to the curable resin in alignment with the first optical array, curing the resin to form a cured assembly, and removing the cured assembly from the cavity.

Abstract: A protective sheath is provided to prevent mechanical damage to the working channel of the endoscope during insertion of the fiber, insulate the fiber from surrounding cooling fluids, and/or serve as an indicator of overheating that enables early detection of excess heating or burning of tissues or equipment at the treatment site. The protective sheath may include trim markings to facilitate cutting to a desired length, such as the length of the fiber in the scope, may also be arranged to glow when the fiber is pulled too far into the sheath, may be tightly fitted over the fiber to provide a plunger effect, and may include perforations to facilitate sterilization.

Abstract: The present invention provides a light guide plate and a manufacturing method thereof. The manufacturing method firstly forms a plurality of spherical recesses arranged at intervals on a light-emitting surface of a light guide plate body when the light guide plate body is formed by pressing, and then applies a diffuser particle with corresponding shape on a surface of each of the spherical recesses, so as to complete the manufacture of the light guide plate. When being mounted in a backlight module, the light guide plate benefits the backlight module of reducing the use of diffuser films, so as to reduce the thickness and weight of the backlight module.

Abstract: The invention relates to a fiberglass spool comprising a self-supporting roll (12) having layers of windings (20) located one above the other of an optical fiber (13) for transmitting data that may be unwound from the interior of the roll outwards, wherein the windings (20) are fixed to one another by means of an adhesive bonding agent. In order to realize a sufficiently stable, self-supporting roll (12) that may be reliably unwound from the inside outwards without loops being pulled out of the roll (12), the roll (12) is structured as a cross-winding and a hydrocarbon-based, salt water-resistant, chemically inert impregnating material that may be liquefied by heating is used as the bonding agent.

Abstract: A light guide plate mold insert includes a molding surface and a number of uniformly distributed dot-shaped recesses. The molding surface is used for forming a reflective surface of a light guide plate. The uniformly distributed dot-shaped recesses are formed in the molding surface. The molding surface includes a number of frosted regions formed by machining the molding surface using a sand-blasting process. Each of the frosted regions includes a number of dot-shaped micro recesses. A distribution density of the micro recesses are greater than that of the recesses.

Abstract: In harsh and hazardous environments, the presence of elevated levels of hydrogen gas is an indicator of chemical and/or radiological activity. The present hydrogen-sensing optical fiber provides rapid and reliable hydrogen detection and quantification, irrespective of temperature fluctuations. The hydrogen-sensing optical fiber does not exhibit significant irreversible hydrogen-induced attenuation losses after exposure to a hydrogen-rich atmosphere.

Abstract: An object is to provide an optical waveguide that has low optical coupling loss when optically coupled with an optical element and that is capable of performing high-quality optical communication, a method for efficiently producing the optical waveguide, an optical waveguide module that is provided with the optical waveguide and is capable of performing high-quality optical communication, a method for efficiently producing the optical waveguide module, and an electronic apparatus.

Abstract: The invention relates to a solar concentrator, comprising a solid body made of a transparent material, which has a light coupling surface and a convex light decoupling surface, wherein the solid body has a light guide part between the light coupling surface and the convex light decoupling surface, wherein said light guide part is tapered in the direction of the convex light decoupling surface. The invention further relates to a production method, wherein the material is precision-molded between two molds.

Abstract: An optical cable includes an optical fiber, a primary coating coated on the optical fiber, and an outer coating coated on the primary coating. The optical cable is spiral, and can be compressed or stretched. The outer coating comprises about 40 to 70 weight percent of caoutchouc, about 20 to 50 weight percent of neoprene, about 0 to 6 weight percent of magnesium oxide, about 0 to 6 weight percent of zinc oxide, and about 0 to 6 weight percent of vulcanization accelerator.