Abstract: The invention relates to a computer mouse which is one kind of coordinate input devices for a computer, and more particularly to a computer mouse which is suitably used for a portable computer. The mouse has: a thin mouse case in which an upper face portion opposing a palm when the mouse is used is formed into a downward-concaved shape; and a plate-like member having a shape which extends along the downward-concaved upper face of the mouse case, and the plate-like member is attachable to the downward-concaved upper face of the mouse case in both an upward-convex direction and a downward-concave direction.

Abstract: An optical coupling component for use in an optical communication connector is provided which comprises a pair of columnar sending side and receiving side optical functional sections and a joint section integrally molded with the optical functional sections and made from the same material as the material of the optically functional sections and having joint regions adjoining the side walls of the optical functional sections, the joint regions of the joint section having a circumferential length along the side walls of the optically functional sections which is equal to or less than a half circumference of the optically functional sections.

Abstract: The object of the present invention is to suppress a decrease in the optical function of a sleeve by ensuring that a liquid chemical substance is not apt to remain on a peripheral surface of the sleeve even when the liquid chemical substance enters a connector. The present invention relates to an optical connector which is connected to an optical plug holding an optical fiber to a terminal end of which a ferrule is attached. The optical connector of the present invention has a guide pipe into which a ferrule is inserted and on an inner circumferential surface of which a supporting portion (a convexity) is formed, a light-emitting device, a light-receiving device, and a sleeve which is positioned by the supporting portion and optically connects the light-emitting device, the light-receiving device and the optical fiber.

Abstract: An optical coupling component for use in an optical communication connector is provided which comprises a pair of columnar sending side and receiving side optical functional sections and a joint section integrally molded with the optical functional sections and made from the same material as the material of the optically functional sections and having joint regions adjoining the side walls of the optical functional sections, the joint regions of the joint section having a circumferential length along the side walls of the optically functional sections which is equal to or less than a half circumference of the optically functional sections.

Abstract: There is provided a monocrystalline gallium nitride localized substrate suitable for manufacturing electronic-optical united devices in which electronic devices and optical devices are mixedly mounted on the same silicon substrate. An area in which monocrystalline gallium nitride 410 is grown is locally present on a silicon substrate 100 by forming silicon carbide 200 on the silicon substrate 100 to locally form the monocrystalline gallium nitride 410 on the above-mentioned silicon carbide 200. Silicon nitride 220 is used as a mask in forming the above-mentioned monocrystalline gallium nitride 410.

Abstract: An optical coupling component for use in an optical communication connector is provided which comprises a pair of columnar sending side and receiving side optical functional sections and a joint section integrally molded with the optical functional sections and made from the same material as the material of the optically functional sections and having joint regions adjoining the side walls of the optical functional sections, the joint regions of the joint section having a circumferential length along the side walls of the optically functional sections which is equal to or less than a half circumference of the optically functional sections.

Abstract: An optical connector to be connected to an optical plug holding optical fibers includes: a light-emitting element; a light-receiving element; and sleeves that optically connect the light-emitting element and the light-receiving element to optical fibers of the optical plug, respectively, in which a transmission sleeve and a reception sleeve are connected to each other via a link section to form a sleeve unit. The sleeve unit is secured by press-fitting the link section into a connector body. A stress caused by the press fitting is not exerted to the transmission sleeve and the reception sleeve, so that the optical functions (optical properties) of the sleeves can be prevented from being compromised by the stress.

Abstract: A prism 11 is formed which has a first face 11a opposing an end face of an optical fiber 21 and receiving a light-to-be-received from the optical fiber, second and third faces 11b and 11c adjoining opposite ends of the first face 11a at right angles and opposing each other, a fourth face 11d for reflecting the light-to-be-received from the face 11a toward the face 11b, and a fifth face 11e reflecting a light-to-be-transmitted as projected from a light source through the face 11c toward the face 11a. First and second light-to-be-received converging lenses 12 and 13 are disposed on the faces 11a and 11b of the prism 11 and first and second light-to-be-transmitted converging lenses 14 and 15 are disposed on the faces 11a and 11c. The tilt angles ?1 and ?2 of the faces 11d and 11e with respect to the optical fiber axis 21a are less than 45°.

Abstract: An optical connector with a shutter which minimizes the accommodating space for the shutter of inward opening type. The shutter opening inward in accordance with the insertion of the plug is provided near the inlet of the plug inserting hole of the case. A shutter biasing spring holding the shutter in the closed position is a torsion coil spring including a pair of arms projecting in two directions from the coil part. The shutter biasing spring is arranged so that the coil part faces towards the hole back side between the back surface of the shutter and the inner wall surface of the case. When the shutter opens and lies along the inner wall surface, both arms are sandwiched between the shutter and the inner wall surface of the case, and the coil part is positioned outside between the shutter and the inner wall surface of the case.

Abstract: The object of the present invention is to suppress a decrease in the optical function of a sleeve by ensuring that a liquid chemical substance is not apt to remain on a peripheral surface of the sleeve even when the liquid chemical substance enters a connector. The present invention relates to an optical connector which is connected to an optical plug holding an optical fiber to a terminal end of which a ferrule is attached. The optical connector of the present invention has a guide pipe into which a ferrule is inserted and on an inner circumferential surface of which a supporting portion (a convexity) is formed, a light-emitting device, a light-receiving device, and a sleeve which is positioned by the supporting portion and optically connects the light-emitting device, the light-receiving device and the optical fiber.

Abstract: An EL-illuminated switch which restrains the deterioration of an EL element resulting from outside pressure without causing unevenness of illumination, including an EL sheet, a rubber sheet, a dome switch, and a substrate. In the EL sheet, a luminescent part is formed at a position directly under a key top. The size of the luminescent part is smaller than the key top. A transparent electrode is disposed on the front surface side of the luminescent part, and a back surface electrode is disposed on the rear surface side. The transparent electrode is larger than the luminescent part. The back surface electrode includes an electrode principal part that is in contact with the back surface of the luminescent part and isolated from the lower sheet.

Abstract: The invention relates to a computer mouse which is one kind of coordinate input devices for a computer, and more particularly to a computer mouse which is suitably used for a portable computer. The mouse has: a thin mouse case in which an upper face portion opposing a palm when the mouse is used is formed into a downward-concaved shape; and a plate-like member having a shape which extends along the downward-concaved upper face of the mouse case, and the plate-like member is attachable to the downward-concaved upper face of the mouse case in both an upward-convex direction and a downward-concave direction.

Abstract: A manufacturing method for a buried insulating layer-type semiconductor silicon carbide substrate comprises the step of placing an SOI substrate 100, which has a surface silicon layer 130 of a predetermined thickness and a buried insulator 120, in a heating furnace 200 and of increasing the temperature of the atmosphere within heating furnace 200 while supplying a mixed gas (G1+G2) of a hydrogen gas G1 and of a hydrocarbon gas G2 into heating furnace 200, thereby, of metamorphosing surface silicon layer 130 of SOI substrate 100 into a single crystal silicon carbide thin film 140.

Abstract: An optical connector socket includes: a body having an insertion section in which a socket-side optical element is arranged and into which an optical connector plug is inserted; a cover, covered on the body, having an opening communicated with the insertion section; a shutter, openably/closably attached to the cover, for closing the opening; and a herical spring for elastically urging the shutter in a constant-closing direction. The opening is larger than an outside dimension of the optical connector plug inserted into the cover and smaller than that of the shutter. Therefore, there is no light leakage and dust intrusion, the socket can be attached to a device or a wall so as to direct an opening toward a front face without a cap, and an inspection in a state where the socket is assembled in an electronic device can be performed without attaching/detaching the cap to/from the socket.

Abstract: An optical fiber connector component having a cylindrical light guide member (32) made of a transparent and elastic material, and a pipe (31) for housing the light guide member in the interior, wherein end surfaces (301) and (302) for connecting the light guide member with optical fibers are either convex or concave surfaces, and the distal end of the pipe protrudes past the connecting surfaces in the axial direction of the pipe. The radii of curvature of the connecting end surfaces of the light guide member differ from the radii of curvature of the distal end surfaces of the optical fibers. Therefore, when the distal ends of the optical fibers are inserted through the pipe and pressed against the connecting end surfaces of the light guide member, the connecting end surfaces deform, causing the contact areas to expand outward from the center, and air between the contact surfaces to be expelled.

Abstract: The present invention seeks to provide an optical connector with an in-swinging shutter for closing a plug insertion opening of the connector, to avoid interference between the shutter and a plug holding part provided inside a plug insertion hole, to avoid increase in the outer dimensions of the connector by suppressing the accommodating space of the shutter. The in-swinging shutter has a two-piece hinge configuration in combination of a main shutter on the basal side and a sub shutter on the distal side. The sub shutter is hinge-coupled to the opening side end of the main shutter. The main shutter is elastically held at the closed position by a bias spring. The sub shutter is elastically held by another bias spring in a bent state in which it is bent towards the insertion opening side, or in a straightened state extending along the extended line of the basal side shutter.