The invention relates to a method for producing a lighting device, comprising the steps of: (a) weaving a fabric comprising warp and weft yarns that form the core of the fabric, weft- or warp-woven optical fibres within the fabric, said optical fibres being formed by a core and a sheath surrounding the core, and binding yarns forming part of the warp or weft yarns, maintaining the optical fibres inside the fabric; (b) treating the surface of the fabric comprising the binding yarns in order to form surface modifications on the surface of the fibres; (c) removing the optical fibres fully from the treated textile; and (d) inserting a portion of the fibres, grouped together in a bundle, into a translucent casing.

The purpose of the present invention is to provide an optical member and the like which enable suppression of diffusion of stray light due to a pigment even when the optical member and the like are used adjacent to a light guiding part through which incident light is transmitted. The optical member is configured to be used adjacent to the light guiding part through which the incident light is transmitted and to attenuate the incident light. The optical member has a dispersed carbon particle part that is formed as a result of dispersion of carbon particles in a particular region in a silicone resin. The carbon particles are stray light diffusion suppressing particles for suppressing the intensity of light being incident onto the carbon particles and diffused.

The purpose of the present invention is to provide an optical member and the like which enable suppression of diffusion of stray light due to a pigment even when the optical member and the like are used adjacent to a light guiding part through which incident light is transmitted. The optical member is configured to be used adjacent to the light guiding part through which the incident light is transmitted and to attenuate the incident light. The optical member has a dispersed carbon particle part that is formed as a result of dispersion of carbon particles in a particular region in a silicone resin. The carbon particles are stray light diffusion suppressing particles for suppressing the intensity of light being incident onto the carbon particles and diffused.

A composite coating having a high refractive index, high Abbe number, low haze and high transmittance, suitable for fabricating nanoscale optical surface features includes a resin with a crosslinked polymer matrix having polymers with repeat units derived from acrylic or methacrylic monomers or oligomers and inorganic nanoparticles disposed within the resin, wherein the composite coating has a refractive index equal to or greater than 1.7 and a glass transition temperature equal to or greater than 60 C.

A technique, and its applications, for high resolution, rapid, and simple nanopatterning. The general method has been demonstrated in several forms and applications. One is patterning nanophotonic structures at an optical fiber tip for refractive index sensing. Another is patterning nanoresonator structures on a sensor substrate for plasmonic effect related detection of VOCs. In the latter example, a graphene oxide coated plasmonic crystal as a gas sensor capable of identifying different gas species using an array of such structures. By coating the surface of multiple identical plasmonic crystals with different thicknesses of Graphene-Oxide (GO) layer, the effective refractive index of the GO layer on each plasmonic crystal is differently modulated when exposed to a specific gas. Identification of various gas species is accomplished using pattern recognition algorithm.

Methods and structures for shielding optical waveguides are provided. A method includes forming a first optical waveguide core and forming a second optical waveguide core adjacent to the first optical waveguide core. The method also includes forming an insulator layer over the first optical waveguide core and the second optical waveguide core. The method further includes forming a shielding structure in the insulator layer between the first optical waveguide core and the second optical waveguide core.

Provided is an aromatic polycarbonate resin composition, including, with respect to 100 parts by mass of an aromatic polycarbonate resin (A), 0.01 part by mass to 0.1 part by mass of an alicyclic epoxy compound (B), 0.2 part by mass to 0.6 part by mass of a polyether compound (C) having a polyoxyalkylene structure, and 0.005 part by mass to 1 part by mass of a phosphorus-based compound (D), wherein a difference between a YI value of a 5-millimeter thick molded body, which is obtained by molding the aromatic polycarbonate resin composition at 320 C., after a lapse of 3,000 hours under an environment at 85 C. and a humidity of 85%, and an initial YI value thereof is 3.0 or less.

Disclosed are a backlight unit for planar lighting apparatuses and a manufacturing method thereof. The backlight unit simplifies a layer structure to be formed into the shape of a vehicle interior trim part, and has a thin thickness and improved flexibility. The backlight unit includes a light emitting device configured to emit light; a light guide panel having polycarbonate and configured to disperse the light received from a light emitting device; a reflective sheet having fibers and provided below the light guide panel to reflect the light dispersed by the light guide panel; and an acrylic adhesive sheet interposed between the light guide panel and the reflective sheet. The reflective sheet includes pores.

A probe structure includes a monolithically integrated waveguide and lens. The probe is based on SU-8 as a guiding material. A waveguide mold is defined using wet etching of silicon using a silicon dioxide mask patterned with 45 angle with respect to the silicon substrate edge and an aluminum layer acting as a mirror is deposited on the silicon substrate. A lens mold is made using isotropic etching of the fused silica substrate and then aligned to the silicon substrate. A waveguide polymer such as SU-8 2025 is flowed into the waveguide mask+lens mold (both on the same substrate) by decreasing its viscosity and using capillary forces via careful temperature control of the substrate.

A polycarbonate resin composition for an optical component, the composition comprising 0.1 to 4 parts by mass of a polyalkylene glycol (B) and 0.005 to 0.5 parts by mass of a phosphorus-containing stabilizer (C) relative to 100 parts by mass of a polycarbonate resin (A), wherein the polyalkylene glycol (B) contains 40 to 80 mol % of a tetramethylene glycol unit (b1), 5 to 45 mol % of a (2-methyl)ethylene glycol unit (b2), and 5 to 50 mol % of an ethylene glycol unit (b3), and wherein at least two units selected from the tetramethylene glycol unit (b1), the (2-methyl)ethylene glycol unit (b2), and the ethylene glycol unit (b3) are contained as a copolymer component obtained by copolymerizing them.