Abstract: A waveguide sensor according to an embodiment of the present invention includes: a substrate; a first underclad arranged on one side of the substrate; a first sensing core arranged on outer side of the first underclad and having a stripe pattern which extends in one direction; a first overclad arranged on outer side of the first sensing core; a second underclad arranged on another side of the substrate; a second sensing core arranged on outer side of the second underclad and having a stripe pattern which extends in a direction not parallel to the direction in which the first sensing core extends; and a second overclad arranged on outer side of the second sensing core. A first grooved part which extends in a direction not parallel to the direction in which the first sensing core extends is formed on the first overclad, so that the first grooved part and the first sensing core together form a first grating in a plane view.

Abstract: An apparatus, an optical touch panel, a waveguide, and a process for producing a double layered waveguide structure are provided. The apparatus includes a waveguide having a plurality of transmission waveguide elements and a plurality of reception waveguide elements; a light source coupled to the waveguide; a light detector coupled to the waveguide; and a reflector, spaced apart from the waveguide, the reflector reflecting light emitted from the plurality of transmission waveguide elements towards the reception waveguide elements. The waveguide includes a substrate, a first cladding layer, a reception waveguide, a second cladding layer, a transmission waveguide, and a third cladding layer. The optical touch panel includes a waveguide section comprising a waveguide; a mirror; a surface emitting laser; and a detector.

Abstract: An optical waveguide device comprises a first under-cladding layer, a light emitting element provided on an upper surface of the first under-cladding layer and having a light emitting portion which emits light, and a core provided on the upper surface of the first under-cladding layer and having a light receiving portion which receives the light emitted from the light emitting portion of the light emitting element. The light receiving portion of the core has a generally U-shape as seen in plan, and the emitted light is projected into an opening of the generally U-shaped light receiving portion.

Abstract: A film-shaped optical waveguide production method which ensures easy production of individual film-shaped optical waveguides without the need for cutting and stamping. A plurality of film-shaped optical waveguide formation regions are defined on a substrate (1). Then, film-shaped optical waveguides (W) are produced in the respective film-shaped optical waveguide formation regions by forming under-cladding layers (2) in the respective regions and forming cores (3) on the respective under-cladding layers (2). Subsequently, the film-shaped optical waveguides (W) are separated from the substrate (1).

Abstract: A waveguide sensor according to an embodiment of the present invention includes: a substrate; a first underclad arranged on one side of the substrate; a first sensing core arranged on outer side of the first underclad and having a stripe pattern which extends in one direction; a first overclad arranged on outer side of the first sensing core; a second underclad arranged on another side of the substrate; a second sensing core arranged on outer side of the second underclad and having a stripe pattern which extends in a direction not parallel to the direction in which the first sensing core extends; and a second overclad arranged on outer side of the second sensing core. A first grooved part which extends in a direction not parallel to the direction in which the first sensing core extends is formed on the first overclad, so that the first grooved part and the first sensing core together form a first grating in a plane view.

Abstract: A suspension board with circuit includes a metal supporting board, an insulating base layer formed on the metal supporting board, a conductive pattern formed on the insulating base layer, an insulating cover layer formed on the insulating base layer so as to cover the conductive pattern, and an optical waveguide.

Abstract: An optical waveguide device which is free from interference with an optical path between a light emitting element and an optical waveguide thereof, and to provide a method of manufacturing the optical waveguide device. A light emitting element (5) is provided on an upper surface of a first under-cladding layer (21), and a second under-cladding layer (22) is provided on the upper surface of the first under-cladding layer (21), covering the light emitting element (5). A core 3 which receives light emitted from the light emitting element (5) through the second under-cladding layer (22) is provided on an upper surface of the second under-cladding layer (22). The core (3) is located in a position such that the light emitted from the light emitting element (5) is incident on the core (3).

Abstract: A suspension board with circuit includes a metal supporting board, an insulating base layer formed on the metal supporting board, a conductive pattern formed on the insulating base layer, an insulating cover layer formed on the insulating base layer so as to cover the conductive pattern, and an optical waveguide including a core layer having a curved portion and a metal thin film covering a surface of the curved portion.

Abstract: A film-shaped optical waveguide production method which ensures easy production of individual film-shaped optical waveguides without the need for cutting and stamping. A plurality of film-shaped optical waveguide formation regions are defined on a substrate (1). Then, film-shaped optical waveguides (W) are produced in the respective film-shaped optical waveguide formation regions by forming under-cladding layers (2) in the respective regions and forming cores (3) on the respective under-cladding layers (2). Subsequently, the film-shaped optical waveguides (W) are separated from the substrate (1).

Abstract: An optical waveguide production method for producing an optical waveguide comprising the steps of: forming an under-cladding layer and an alignment mark from the same material on a substrate; forming a thin metal film on the alignment mark; forming a first transparent photosensitive resin layer on the resultant substrate to cover the under-cladding layer and the thin metal film; positioning an exposure mask with reference to the thin metal film formed on the alignment mark; and selectively exposing a predetermined portion of the first photosensitive resin layer on the under-cladding layer via the exposure mask to form a core defined by the exposed portion of the first photosensitive resin layer.

Abstract: An optical waveguide device comprises a first under-cladding layer, a light emitting element provided on an upper surface of the first under-cladding layer and having a light emitting portion which emits light, and a core provided on the upper surface of the first under-cladding layer and having a light receiving portion which receives the light emitted from the light emitting portion of the light emitting element. The light receiving portion of the core has a generally U-shape as seen in plan, and the emitted light is projected into an opening of the generally U-shaped light receiving portion.

Abstract: An optical waveguide includes a substrate, a core formed on the substrate and serving as a passageway for light, and a metal film, in which at least a portion of the core is covered with the metal film.

Abstract: A method of manufacturing an optical waveguide which is capable of preventing upper portions of cores from bulging widthwise when the cores are made high. After coating the surface of an under-cladding layer (2) and the like with an ultraviolet curable resin, a resulting coating layer (3a) is irradiated with ultraviolet light (L) having a wavelength within the range of 330 to 400 nm in a predetermined pattern, and an irradiated portion of the coating layer is cured to form cores.

Abstract: A suspension board with circuit includes a metal supporting board, an insulating base layer formed on the metal supporting board, a conductive pattern formed on the insulating base layer, an insulating cover layer formed on the insulating base layer so as to cover the conductive pattern, and an optical waveguide.