Abstract: A composite cable 21 with a plug 22 attached thereto includes optical fibers, metal wires, a tensile strength fiber 21a, and an envelope 21b for enveloping them and the plug 22 includes a ferrule 210 of the plug for connecting the optical fiber, a cable clamp 221 and a Kevler holder 222 (first fixing mechanism) for fixing the tensile strength fiber 21a, and a gasket 223 (second fixing mechanism) for blocking a twist of the envelope 21b and further includes a joint mechanism (227) of a detachable traction cap for pulling the composite cable 21 and inserting the composite cable 21 into piping.

Abstract: The present invention provides an optical DVI cable and optical signal transmission equipment which can prevent the leakage of laser light to the outside. The optical DVI cable includes (1) a transmission side unit having a laser light emitting element unit, and configured and arranged to convert input electrical signals into optical signals and to transmits the optical signals, (2) a reception side interface unit configured and arranged to receive the optical signals transmitted from the transmission side interface unit, and (3) a connecting cable having metal wires to supply power to the laser light emitting element unit, and optical fibers to transmit optical signals. The transmission side unit may include a power supply terminal. In this case, the metal wires supply power to the laser light emitting element unit from the transmission side unit via the reception side unit.

Abstract: A digital signal transmission cable and digital video display system are configured to transmit digital signals over long distances. The digital signal transmission cable has a first metal wire and a male digital visual interface connector that is mounted to one end of the first metal wire and equipped with a compensation circuit. The compensation circuit is configured to shape and amplify digital signals that propagated through the first metal wire. The digital video display system has a digital signal transmission cable and an image input device and an image output device that are connected by the digital signal transmission cable.

Abstract: A composite cable 21 with a plug 22 attached thereto includes optical fibers, metal wires, a tensile strength fiber 21a, and an envelope 21b for enveloping them and the plug 22 includes a ferrule 210 of the plug for connecting the optical fiber, a cable clamp 221 and a Kevler holder 222 (first fixing mechanism) for fixing the tensile strength fiber 21a, and a gasket 223 (second fixing mechanism) for blocking a twist of the envelope 21b and further includes a joint mechanism (227) of a detachable traction cap for pulling the composite cable 21 and inserting the composite cable 21 into piping.

Abstract: The object of the present invention is to provide a digital signal transmission cable and digital video display system capable of accomplishing good transmissions of digital signals over long distances even when an image output device not provided with an internally installed compensation circuit for shaping and amplifying digital signals is used. The digital signal transmission cable has a first metal wire; and a male digital visual interface connector that is mounted to one end of the first metal wire and equipped with a compensation circuit configured to shape and amplify digital signals that propagated through the first metal wire. The digital video display system has a digital signal transmission cable according to the present invention and an image input device and an image output device that are connected by the digital signal transmission cable.

Abstract: The present invention provides an optical DVI cable and optical signal transmission equipment which can prevent the leakage of laser light to the outside. The optical DVI cable includes (1) a transmission side unit having a laser light emitting element unit, and configured and arranged to convert input electrical signals into optical signals and to transmits the optical signals, (2) a reception side interface unit configured and arranged to receive the optical signals transmitted from the transmission side interface unit, and (3) a connecting cable having metal wires to supply power to the laser light emitting element unit, and optical fibers to transmit optical signals. The transmission side unit may include a power supply terminal. In this case, the metal wires supply power to the laser light emitting element unit from the transmission side unit via the reception side unit.

Abstract: An interface module for transmitting a digital video signal includes: a transmitting interface unit which is designed to be connected to a host device for outputting a video signal, and which has a cable connection consisting of a 4-core optical fiber cable and a 4-core male connector provided at one end thereof; a receiving interface unit having a cable connection designed to be connected to a video output display unit and consisting of a 4-core optical fiber cable and a 4-core male connector provided at one end thereof; and an optical cable unit for transmitting TMDS signals consisting of RGB signals and clock signals. The transmitting and receiving interface units are interconnected by the optical cable unit. The transmitting interface unit includes a second integrated circuit outputting identification information (DDC signal) associated with the video output display unit.

Abstract: A digital video signal interface module that can suppress an increase in connection losses while allowing transmission of high-resolution digital images and requires less space on the backside is provided. The module includes (1) a transmission side interface unit that has an EO converter that converts digital video signals to optical signals, a first connector, and a first optical fiber that connects the EO converter and the first connector, (2) a reception side interface unit that has an OE converter which converts the optical signal to an electric signal, a second connector, and a second optical fiber that connects the OE converter and the second connector, and (3) a cable unit that has a third optical fiber and connects the transmission side interface unit and the reception side interface unit, wherein the numerical aperture of the first optical fiber is smaller than the that of the third optical fiber.

Abstract: An interface module for transmitting a digital video signal includes: a transmitting interface unit which is designed to be connected to a host device for outputting a video signal, and which has a cable connection consisting of a 4-core optical fiber cable and a 4-core male connector provided at one end thereof; a receiving interface unit having a cable connection designed to be connected to a video output display unit and consisting of a 4-core optical fiber cable and a 4-core male connector provided at one end thereof; and an optical cable unit for transmitting TMDS signals consisting of RGB signals and clock signals. The transmitting and receiving interface units are interconnected by the optical cable unit. The transmitting interface unit includes a second integrated circuit outputting identification information (DDC signal) associated with the video output display unit.

Abstract: A multi-core-fiber optical connector includes a first ferrule and a second ferrule. The first ferrule has a first step defining a first upper surface and a first lower surface. The first upper surface has a plurality of first receiving grooves for receiving the vicinities of leading end portions of optical fibers and engaging portions formed on opposite sides of the first upper surface. The second ferrule has a second step being abuttable against the first step, and defining a second lower surface opposite to the first upper surface and a second upper surface opposite to the first lower surface. The second lower surface has a plurality of second receiving grooves receiving the leading end portions of the optical fibers. The second upper surface has engaged portions engageable with said engaging portions, and is formed with a recess receiving a band-like elastic cushioning member therein.

Abstract: A fiber fixing device for a linear lightguide comprises a tubular chuck and an elastic tubular body. The chuck includes a hollow part along its axis for receiving an optical fiber, a grasp part for grasping the received optical fiber, and a coupling part supporting the grasp part. The elastic tubular body is elastically expanded outwardly in the radial direction and in this state is fitted onto the grasp part of the chuck. Thus, the elastic tubular body exerts an elastic restoring force to radially inwardly press the grasp part which thereby grasps the optical fiber.

Abstract: There are provided a connector body having an accommodating recess in which a pair of ferrules and a pair of springs, respectively fitted over a pair of optical fibers, are accommodated, as well as a connector cover. The connector cover is provided with fixing pins, and the connector body is provided with fixing holes into which the fixing pins are press fitted. A spring pressing portion is provided on the connector cover for pressing the spring with a natural length in the direction toward its distal end at two positions when the fixing pins are press fitted into the fixing holes, and for holding the spring in a compressed state when the fixing pins have been press fitted. A guide taper is formed at a tip of the spring pressing portion. A pressing-portion fitting groove for inserting and guiding the spring pressing portion is provided in the connector body.