Patent application number | Description | Published |
20080260341 | Resin Composition for Optical Material, Resin Film for Optical Material and Optical Waveguide Using Same - Disclosed is a resin composition for an optical material which contains a base polymer (A), a photopolymerizable compound (B), and a photopolymerization initiator (C). Also disclosed is a resin film for an optical material which is made of such a resin composition for an optical material. Specifically disclosed is a resin composition for an optical material which has high transparency and high heat resistance, while enabling formation of a thick film with high precision. This resin composition is particularly useful for a resin film which is used for forming optical waveguides. Also specifically disclosed are a resin film for an optical material using such a resin composition and an optical waveguide using such a resin film. | 10-23-2008 |
20090010604 | Flexible Optical Waveguide, Method For Manufacturing Such Flexible Optical Waveguide, and Optical Module - The present invention relates to a flexible optical waveguide prepared by using a resin film for forming an optical waveguide for at least one of a lower cladding layer, a core layer and an upper cladding layer, wherein a ten point average roughness (Rz) on a surface of either one of the lower cladding layer and the upper cladding layer is 0.5 μm or more and 10 μm or less, a production process for the same and an optical module prepared by using the flexible optical waveguide. Provided are a flexible optical waveguide which is excellent in an adhesive property in compounding with an electric printed wiring board and turning a flexible optical waveguide into a multilayer, a production process for the same and an optical module prepared by using the flexible optical waveguide. | 01-08-2009 |
20090062421 | Phenoxy Resin for Optical Material, Resin Composition for Optical Material, Resin Film For Optical Material and Optical Waveguide Using Those - The present invention relates to a phenoxy resin for an optical material obtained by subjecting at least one selected from specific difunctional epoxy resins and at least one selected from specific difunctional phenols to polyaddition reaction, wherein a film comprising the above phenoxy resin has a refractive index of 1.580 or less at 25° C. and a wavelength of 830 nm, a resin composition for an optical material containing the above phenoxy resin, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the above resin composition and/or the above resin film. The present invention can provide a phenoxy resin for an optical material which is excellent in a heat resistance and a transparency and which has a low refractive index, a resin composition for an optical material containing the above phenoxy resin, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the above resin composition and/or the above resin film. | 03-05-2009 |
20090175585 | Flexible Optical Waveguide and Optical Module - The present invention relates to a flexible optical waveguide including a core portion and a cladding layer which has an increment of insertion loss of 0.1 dB or less upon subjecting the waveguide to a 360° bending test at a radius of curvature of 2 mm, as well as an optical module using the flexible optical waveguide. There are provided a flexible optical waveguide having high flexing property, heat resistance and transparency, as well as an optical module using the flexible optical waveguide. | 07-09-2009 |
20090196066 | OPTICAL CONNECTING MEMBER AND DISPLAY APPARATUS - Disclosed is an information processing device with lighting function that realizes reduced power consumption and cost reductions. The optical connecting member | 08-06-2009 |
20090257707 | Optical/Electrical Mixed Mounting Substrate - The present invention provides a hybrid optical/electrical circuit board in which an optical waveguide prepared by an exposing and developing step is combined with an electric circuit, wherein a printed wiring board containing an inorganic filler and a light absorber is used, and it has an optical waveguide core pattern having a high resolution and makes it possible to raise a density of optical wiring. | 10-15-2009 |
20100040339 | RESIN COMPOSITION FOR OPTICAL MATERIAL, RESIN FILM FOR OPTICAL MATERIAL, AND OPTICAL WAVEGUIDE USING THEM - The present invention relates to a resin composition for an optical material comprising (A) a carboxylic acid-modified phenoxy resin, (B) a polymerizable compound and (C) a polymerization initiator, a resin film for an optical material comprising the above resin composition and an optical waveguide having a core part and/or a cladding layer formed by using the same. Provided are a resin composition for an optical material which is excellent in a heat resistance and a transparency and which is soluble in an alkaline aqueous solution, a resin film for an optical material comprising the above resin composition and an optical waveguide produced by using the same. | 02-18-2010 |
20100040986 | PROCESS FOR MANUFACTURING LIGHT GUIDE - The present invention relates to a process for producing an optical waveguide, including the steps of applying a cladding layer-forming resin onto a substrate and curing the resin to form a lower cladding layer; laminating a core layer-forming resin film on the lower cladding layer to form a core layer; subjecting the core layer to exposure to light and development to form a core pattern; and applying a cladding layer-forming resin over the core pattern to embed the core pattern therebeneath, and curing the resin to form an upper cladding layer, wherein the step of forming the core layer includes the steps of (1) allowing the core layer-forming resin film to be temporarily attached onto the lower cladding layer using a roll laminator, and (2) thermocompression-bonding the temporarily attached core layer-forming resin film onto the lower cladding layer under a reduced pressure. There is provided the process for producing an optical waveguide having a uniform core with a good productivity. | 02-18-2010 |
20100119191 | METHOD FOR PRODUCING PHOTOELECTRIC COMPOSITE SUBSTRATE, PHOTOELECTRIC COMPOSITE SUBSTRATE PRODUCED BY THE METHOD, AND PHOTOELECTRIC COMPOSITE MODULE USING THE SUBSTRATE - The present invention provides a production process for a photoelectric composite substrate having an excellent productivity, comprising a step in which a sheet-like adhesive is stuck to an optical waveguide, a step in which a supporting base material of the above sheet-like adhesive is peeled off to prepare the optical waveguide provided with the adhesive, a step in which the above optical waveguide provided with the adhesive is adhered to an electric wiring board to prepare the electric wiring board provided with the optical waveguide and a step in which an optical path conversion mirror is formed in the optical waveguide of the above electric wiring board provided with the optical waveguide, a photoelectric composite substrate produced by using the above production process and a photoelectric composite module produced by using the above photoelectric composite substrate. | 05-13-2010 |
20100129045 | Adhesive Composition for Optical Waveguide, Adhesive Film for Optical Waveguide and Adhesive Sheet for Optical Waveguide Each Using the Same, and Optical Device Using Any of Them - The present invention provides an adhesive composition for an optical waveguide which comprises (a) an epoxy resin, (b) a curing agent and (c) a high molecular compound, in which a total light transmittance and a light transmittance in a wavelength of 700 to 1600 nm in a cured matter of the adhesive composition are 80% or more and in which a transparency is consistent with a heat resistance, an adhesive film for an optical waveguide prepared by forming the above adhesive composition into a film form, an adhesive sheet for an optical waveguide comprising the above adhesive composition and a supporting base material and an optical device produced by using them. | 05-27-2010 |
20100266258 | RESIN COMPOSITION FOR OPTICAL MATERIAL, RESIN FILM FOR OPTICAL MATERIAL AND OPTICAL WAVEGUIDE USING SAME - Disclosed is a resin composition for an optical material which contains a base polymer (A), a photopolymerizable compound (B), and a photopolymerization initiator (C). Also disclosed is a resin film for an optical material which is made of such a resin composition for an optical material. Specifically disclosed is a resin composition for an optical material which has high transparency and high heat resistance, while enabling formation of a thick film with high precision. This resin composition is particularly useful for a resin film which is used for forming optical waveguides. Also specifically disclosed are a resin film for an optical material using such a resin composition and an optical waveguide using such a resin film. | 10-21-2010 |
20110013865 | METHOD OF MANUFACTURING WIRING BOARD, METHOD OF MANUFACTURING OPTOELECTRIC COMPOSITE MEMBER, AND METHOD OF MANUFACTURING OPTOELECTRIC COMPOSITE BOARD - A method for producing a circuit board, contains, in this order, a step A of forming a circuit on a first substrate; a step B of laminating a first support on a surface of the first substrate having the circuit formed, through a first releasing layer; and a step C of forming a second substrate or circuit on a surface of the first substrate opposite to the surface having the circuit formed, and a method for producing an optoelectronic composite member, contains, in this order, a step of laminating an electric circuit board on a second support; a step of laminating a first support; a step of releasing the second support; and a step of forming an optical waveguide on a surface where the second support is released. | 01-20-2011 |
20110188827 | OPTICAL WAVEGUIDE AND METHOD FOR MANUFACTURING THE SAME - The invention provides an optical waveguide including a resin substrate containing an inorganic filler, and at least a UV-absorbing layer, a lower cladding layer, a patterned core layer, and an upper cladding layer laminated above the resin substrate in this order, wherein the core layer has been patterned through light exposure and development, and the UV-absorbing layer has a thickness of 10 to 50 μm, and a method for producing an optical waveguide, including a step of forming a UV-absorbing layer on a resin substrate containing an inorganic filler; a step of forming a lower cladding layer on the UV-absorbing layer; a step of forming a core layer on the lower cladding layer; a step of subjecting the core layer to light exposure to thereby transfer a pattern having a given shape to the core layer; a step of developing the core layer to thereby form a core pattern; and a step of forming an upper cladding layer on the patterned core layer. According to the present invention, an optical waveguide having a high-resolution core pattern can be produced. | 08-04-2011 |
20110235964 | OPTICAL WAVEGUIDE, OPTO-ELECTRIC HYBRID BOARD, AND OPTICAL MODULE - The present invention relates to an optical waveguide comprising a lower cladding layer, a patternized core layer and an upper cladding layer, wherein a striking part for positioning is provided in one end part thereof, and an optical path turning mirror face is formed in a position different from a striking part-forming end part in the above core layer. | 09-29-2011 |
20110274389 | OPTO-ELECTRIC COMBINED CIRCUIT BOARD AND ELECTRONIC DEVICES - The present invention relates to a flexible opto-electric combined circuit board in which an optical waveguide film provided with a core and a clad is bonded to a flexible electric wiring board, wherein a reinforcing material is provided to at least a part of an optical waveguide film side in a bent part and electronic devices prepared by using the above flexible opto-electric combined circuit board. | 11-10-2011 |
20120039563 | METHOD FOR PRODUCING OPTICAL WAVEGUIDE, OPTICAL WAVEGUIDE, AND PHOTOELECTRIC COMPOSITE WIRING BOARD - (1) A method for producing a flexible optical waveguide, containing: a step of forming a first cladding layer; a step of forming a first core layer by laminating a resin film for forming a core layer on at least one end portion of the first cladding layer; a step of forming a second core layer by laminating a resin film for forming a core layer on an entire surface of the first core layer and the first cladding layer; a step of forming a core pattern by patterning the first and second core layers; and a step of embedding the core pattern by forming a second cladding layer on the core pattern and the first cladding layer, (2) a flexible optical waveguide containing a lower cladding layer, a core part and an upper cladding layer, the upper cladding layer having a width that is smaller than a width of the lower cladding layer at least in a bent portion, and is equal to or smaller than a width of the lower cladding layer in an end portion, and the lower cladding layer having a width in a bent portion that is equal to or smaller than a width thereof in an end portion, and a method for producing the same. A flexible optical waveguide that is excellent in bending durability and has small optical loss, and a method for producing the same. | 02-16-2012 |
20120219251 | OPTICAL WAVEGUIDE SUBSTRATE AND METHOD FOR MANUFACTURING SAME - According to a manufacturing method of an optical waveguide substrate including a core ( | 08-30-2012 |