Abstract: A reflecting base material that can reliably prevent the occurrence of uneven brightness, a backlight unit that uses the same, and a method for manufacturing the same are provided. Surface profile information of the reflecting base material 7 is obtained by a laser displacement gauge 3. Next, the unevenness information obtained is subjected to Fourier transform, and the relationship between frequency and intensity for the surface unevenness profile of the reflecting base material is obtained. Next, the calculated relationship between the frequency and intensity is compared with a preset standard data. When the intensity exceeds 0.6 at a predetermined range of frequency domain, a judgment of rejection is made; when no data exceeding 0.6 exists in said judgment domain, a judgment of acceptance is made.

Abstract: A diaphragm for a planar speaker and a planar speaker having a long-term stability and a high reliability and exhibiting a flat sound pressure frequency property. The diaphragm for a planar speaker includes a voice coil formed by winding a wire conductor, two adhesive layers sandwiching the voice coil therebetween, and bases bonded to the two adhesive layers on the side opposite to the voice coil. The planar speaker employs the diaphragm.

Abstract: A diaphragm for a planar speaker and a planar speaker having a long-term stability and a high reliability and exhibiting a flat sound pressure frequency property. The diaphragm for a planar speaker includes a voice coil formed by winding a wire conductor, two adhesive layers sandwiching the voice coil therebetween, and bases bonded to the two adhesive layers on the side opposite to the voice coil. The planar speaker employs the diaphragm.

Abstract: A wiring system is provided. Using the system, a wire conductor is stuck on a surface of a substrate by causing a three-dimensional relative movement between a wiring head for guiding the wire conductor and the substrate such that the wiring head relatively moves along an adhesive layer on the surface of the substrate and the wiring head and the adhesive layer intermittently come close to each other for point contact.

Abstract: An optical attenuator (8) has a substrate (glass substrate) (1) and an optical attenuation film (2) that attenuates an input light with a predetermined optical attenuation factor, and the optical attenuation film (2) is disposed on a light input face (3) of the substrate (1). An angle defined by the light input face (3) and the light output face (4) of the substrate (1) is set to 0.15° to 0.5°. A protective film (5) for preventing the deterioration of the optical attenuation film (2) is formed on a surface of the optical attenuation film (2).

Abstract: A wiring method is provided, in which a wire conductor is stuck on a surface of a substrate by causing a three-dimensional relative movement between a wiring head (2) for guiding the wire conductor (5) and the substrate (11) such that the wiring head relatively moves along an adhesive layer (12) on the surface of the substrate and the wiring head and the adhesive layer intermittently come close to each other for point contact. A wiring apparatus for carrying out the wiring method includes a table (1) for supporting the substrate, a wiring head arranged for reciprocating motion between a close position in which the wiring head can be in point contact with the adhesive layer and a distant position in which the wiring head is most distant from the adhesive layer, and a moving mechanism (3) for causing a translational motion of the wiring head along the surface of the substrate under the control of a control section (4).

Abstract: A wiring method is provided, in which a wire conductor is stuck on a surface of a substrate by causing a three-dimensional relative movement between a wiring head for guiding the wire conductor and the substrate such that the wiring head relatively moves along an adhesive layer on the surface of the substrate and the wiring head and the adhesive layer intermittently come close to each other for point contact.

Abstract: An optical attenuator (8) has a substrate (glass substrate) (1) and an optical attenuation film (2) that attenuates an input light with a predetermined optical attenuation factor, and the optical attenuation film (2) is disposed on a light input face (3) of the substrate (1). An angle defined by the light input face (3) and the light output face (4) of the substrate (1) is set to 0.15° to 0.5°. A protective film (5) for preventing the deterioration of the optical attenuation film (2) is formed on a surface of the optical attenuation film (2).

Abstract: A wiring method is provided, in which a wire conductor is stuck on a surface of a substrate by causing a three-dimensional relative movement between a wiring head (2) for guiding the wire conductor (5) and the substrate (11) such that the wiring head relatively moves along an adhesive layer (12) on the surface of the substrate and the wiring head and the adhesive layer intermittently come close to each other for point contact. A wiring apparatus for carrying out the wiring method includes a table (1) for supporting the substrate, a wiring head arranged for reciprocating motion between a close position in which the wiring head can be in point contact with the adhesive layer and a distant position in which the wiring head is most distant from the adhesive layer, and a moving mechanism (3) for causing a translational motion of the wiring head along the surface of the substrate under the control of a control section (4).

Abstract: An apparatus for assembling and inspecting optical fibers and a connector which attaches the connector to at least one cord end of a plurality of optical fibers and inspects connection loss etc. due to connection of the connector. A process of connecting the connector to the cord ends where the connector is assembled which is linked to a process of processing the other cord ends and then inspecting connection loss etc. of the optical fibers due to a connection of the connector.

Abstract: Disclosed a method of assembly and inspection of optical fiber connectors which attaches connectors to at least one cord end of a plurality of optical fiber cords in which single or multiple optical fibers are accommodated and inspects connection loss etc. due to connection of the connectors.A process of connecting the connectors to cord ends where the connectors are assembled is linked to a process of processing the other cord ends and then inspecting connection loss etc. of the optical fibers due to a connection of the connectors.