摘要:
An optical element mounted body is disclosed. The optical element mounted body comprising: an optical semiconductor element having a light-emitting/light-receiving portion and a predetermined structure formed on a primary surface thereof; and a substrate having a mounting surface; wherein said substrate has a first hollow formed on said mounting surface, and wherein said optical semiconductor element is mounted junction-down on said substrate such that said structure of said optical semiconductor element and said first hollow of said substrate face each other.
摘要:
An optical module comprises a substrate (2), formed with wiring patterns for electrical signals and having a mounting surface (2b) mounted with one or more semiconductor optical elements (4), and a package (7, 8) in which the substrate (2) is located. The substrate (2) is formed with at least one first positioning section (2c), the package (7) is formed of a synthetic resin and includes a disposition section (7e) in which one or more optical waveguide components are opposed to the semiconductor optical elements (4), and a second positioning section (7g) adapted to engage the first positioning section, thereby positioning the semiconductor optical elements and the disposition section.
摘要:
A connector adapter including a light emitting element for emitting a laser beam and connected with a plug having an optical fiber, whereby the laser beam emitted from the light emitting element is introdued into the optical fiber. The connector adapter comprises a shutter member fixed in a connector and including a base portion having a first spring portion and a shutter portion connected to the base portion. The base portion undergoes elastic deformation at the first spring portion so that the shutter portion recedes from the optical path of the laser beam when the plug is pushed into the adapter to be attached thereto, and is restored from the elastic deformation so that the shutter portion intercepts the optical path of the laser beam when the plug is drawn out of the adapter to be detached therefrom.
摘要:
An optical module that is easy to manufacture and may arrange and position an optical element mounting substrate and a package with high precision is provided. A substrate side positioning groove portion is formed in an optical element mounting surface of the optical element mounting substrate on which an optical element is mounted, and a package side positioning groove portion is formed in the package on which the optical element mounting substrate is arranged. The optical element mounting substrate and the package are overlapped with each other with the substrate side positioning groove portion and the package side positioning groove portion facing each other. An optical fiber that is a positioning member is inserted between the positioning groove portions. Thus, the optical element mounting substrate and the package are positioned relative to each other. The respective positioning groove portions on the substrate side and on the package side may readily be formed with high precision. Also, the optical fiber may be manufactured with high precision. Thus, it is possible to position the optical element mounting substrate and the package with very high precision.
摘要:
A four-stroke engine for a working machine with a rod is provided, where a tool is attached to one end of the rod in a longitudinal direction and the four-stroke engine is fixed to the other end of the rod in use. The four-stroke engine includes: an oil circulation pathway; and a gas-liquid separating chamber configured to separate oil from blowby gas. The gas-liquid separating chamber includes: an inflow part into which the blowby gas is introduced from the oil circulation pathway; oil discharge parts configured to flow the oil separated from the blowby gas back to the oil circulation pathway; and a blowby gas discharge part configured to discharge the blowby gas not containing oil mist from the gas-liquid separating chamber and supplies the blowby gas to an intake passageway to a combustion chamber.
摘要:
It is an object to form a conductive intermediate layer having a function of maximally preventing a solder leaching phenomenon with a low environment load and with good productivity.There are provided an insulative base material 2, a wiring circuit pattern 3 formed on at least one surface of the insulative base material 2, an electronic part mounting land 31 which is formed as part of the wiring circuit pattern 3 and on which an electronic part 7 is to be mounted, and a conductive intermediate layer 5 made of a sintered conductive ink film on the electronic part mounting land 31.
摘要:
To peel an etching resist easily and reliably without damaging a transparent conductive layer coated with the etching resist. A method for manufacturing a transparent printed circuit in an embodiment of the present invention includes: providing a transparent conductive sheet 3 having a transparent base material 1 and a transparent conductive layer 2 formed on the transparent base material 1, forming an etching resist 4 having a specified pattern on the transparent conductive layer 2, etching the transparent conductive layer 2 with the etching resist 4 as a mask, forming a peeling film 5 on the etching resist 4 and on the transparent base material 1 exposed by etching of the transparent conductive layer 2 so as to cover an area where the etching resist 4 is formed, and peeling the peeling film 5 together with the etching resist 4.
摘要:
The present invention provides a connector unit that can surely position and connect a plurality of optical fiber plugs in a short time and easily release a connected state of optical fiber connectors even if the number of optical fiber connectors increases. A connector unit includes a positioning member for positioning a plurality of optical fiber plugs, an adapter that has plug guide holes for inserting tip ends of the optical fiber plugs to connect with the optical fiber plugs, and guide portions for guiding the positioning member with respect to the adapter and inserting the tip ends of the optical fiber plugs into the plug guide holes of the adapter to connect with the optical fiber plugs.
摘要:
An optical component provided with a waveguide groove having, an waveguide holding plane having a surface shape extending along a specified axial direction and capable of holding at least one optical waveguide while positioning it at at least a part of at least one side face thereof; and an opening extending substantially oppositely to the waveguide holding plane and being smaller in width than the outside diameter of at least one optical waveguide in a specified widthwise direction perpendicular to the specified axial direction.
摘要:
An optical module, in which an optical device can be mounted and repaired without damaging an electrode on an electronic device side, is provided. A photodiode (1) and a pre-amplifier IC (2) are mounted on a base (stem) (4), and except for that, a relay terminal table (7) is provided. The photodiode (1) and the pre-amplifier IC (2) are connected through the relay terminal table (7) by means of bonding wires (3a, 3b). The relay terminal table (7) is connected via the bonding wire (3a) to an electrode (11) of the photodiode (1), as well as via the bonding wire (3b) to an electrode (12) of the pre-amplifier IC (2). In repairing the photodiode (1) only the bonding wire (3a) is removed for re-wiring, so that the electrode (12) of the pre-amplifier IC can be prevented from being damaged.