Abstract: An optical connector device to be used in the field of optical communication between equipments in an office automation system, a factory automation system, an automobile and so on. In this optical connector device, a fitting projection portion of a plug-type optical connector is fitted in a fitting recess in a socket-type optical connector. A latch portion, formed at the plug-type optical connector, is releasably and retainingly engaged with a latch retaining portion formed at the socket-type optical connector. An auxiliary lock mechanism is provided between an inner peripheral surface of the fitting recess and an outer peripheral surface of the fitting projection portion. The auxiliary lock mechanism includes a lock recess and a lock projection which are releasably fitted together when the latch portion is to be engaged with the latch retaining portion.

Abstract: In an optical connector, a shield casing 20, having element body portions 1a of optical elements 1 received therein, is received in a connector housing member 11 in such a manner that this shield casing can be contacted with a packaging surface of a packaging board Q.

Abstract: An optical connector is provided for connecting an optical fiber cord to a photoelectric conversion device or for connecting optical fiber cords together. The connector has a housing body including a tubular ferrule portion for receiving and holding an end of an optical fiber cord. A protective hood is formed integrally with the housing body and is disposed around the ferrule portion, extending beyond the terminal end of the ferrule portion. Optionally, the connector is adapted to be connected to a mating optical connector which contains a photoelectric conversion device.

Abstract: A ferrule portion is formed on and projects from a first connector housing, and a plurality of fiber insertion holes for respectively holding end portions of optical fibers are formed in the ferrule portion. End portions of a plurality of optical fibers are held in a second connector housing, and this second connector housing has a ferrule guide hole for receiving the ferrule portion so as to guide the end portions of the optical fibers, held in the ferrule portion, toward the end portions of the optical fibers, held in the second connector housing, respectively. The ferrule portion is formed into a generally oval transverse cross-sectional shape, and the ferrule guide hole is formed into a generally oval transverse cross-sectional shape corresponding to the oval transverse cross-sectional shape of the ferrule portion.

Abstract: An optical coupling connector portion, including ferrule portions, is provided at a widthwise central portion of a connector housing having a shape flattened in a direction of the width thereof. Female connection terminal portions, serving as electrical connection terminals, are provided in a distributed manner at widthwise opposite side portions of the connector housings disposed outwardly respectively of opposite sides of the optical coupling connector portion. An optical coupling connector portion, including ferrule receiving portions for respectively receiving the ferrule portions, is provided at a widthwise central portion of a second connector housing. Male connection terminal portions, serving as electrical connection terminal portions, are provided in a distributed manner at widthwise opposite side portions of the connector housing in corresponding relation to the female connection terminal portions.

Abstract: A shield casing is received and held in a connector housing made of a resin. The shield casing includes a casing body portion for receiving an optical element therein, a guide sleeve portion which guides an optical fiber toward the element body portion, and a radiating portion exposed to the exterior of the connector housing. The casing body portion, the guide sleeve portion and the radiating portion are formed integrally on this casing body portion. The whole of the shield casing is made of a metal material such as aluminum and an aluminum alloy. The shield casing further includes screw-fastening fixing piece portions for fixing the shield casing to a mounting board. The shield casing is connected to a ground wiring circuit on the mounting board via the screw-fastening fixing piece portions.

Abstract: In an optical connector, element body portions of optical elements are fittingly received respectively in receiving recesses formed in a connector housing, and lead terminals of each optical element project outwardly from the receiving recess. The connector housing is made of a metal material, and ground contact surfaces for being held in surface-to-surface contact with a grounding circuit is formed on and projects from a lower surface of the connector housing beyond which the lead terminals project outwardly, and an insulating portion made of an insulating material is formed at a peripheral edge portion of an opening of each receiving recess over an entire periphery thereof.

Abstract: An optical connector according to this invention includes a connector housing having a casing receiving recess formed therein, a metal shield casing for receiving an element body portion of an optical element therein, and a metal shield cover for covering the connector housing. The metal shield casing is received and held in the casing receiving recess. The metal shield casing and the metal shield cover are electrically connected to each other being in mutual contact; the side surface of the metal shield casing is exposed to the exterior of the connector housing to be in surface-to-surface contact with the metal shield cover. The metal shield casing and the metal shield cover may be formed integrally to constitute a shield member.

Abstract: An optical connector is constituted of a connector housing, a shielding case, and optical elements. The shielding case is split into a case main body section and a heatsink mechanism section, both joined together to constitute housing recesses. While the case main body section and the heatsink mechanism section are joined together, element main body sections are held between them. A non-joint plane of the heatsink mechanism section is housed in a case housing recess of the connector housing in an outwardly exposed state. A corrugated heatsink fin section is formed in the non-joint plane. The housing recesses into which the element main body sections are to be housed are partitioned from each other.

Abstract: In an optical connector device configured by a combination of an element-side optical connector 10 which accommodates an optical element D, and a fiber-side optical connector 30 which holds an optical fiber, an element accommodating housing member 11 of the optical connector 10, and a fiber holding housing member 31 of the optical connector 30 are formed by an electrically conductive resin. In a state where the optical connectors 10 and 30 are connected to each other, the fiber holding housing member 31 is electrically connected to the element accommodating housing member 11.

Abstract: In an optical connector, a substantially tubular ferrule portion is formed integrally with a housing body portion 15 of a substantially square tubular shape, and a protective hood portion of a substantially square tubular shape is formed integrally with the housing body portion in surrounding relation to the ferrule portion. A distal end portion of the ferrule portion is disposed in a sequestered position within the protective hood portion, and a notch is formed in a bottom wall of the protective hood portion, and the distal end portion of the ferrule portion is exposed laterally to the exterior through the notch.

Abstract: In an optical connector, a shield casing 20, having element body portions 1a of optical elements 1 received therein, is received in a connector housing member 11 in such a manner that this shield casing can be contacted with a packaging surface of a packaging board Q.

Abstract: An optical connector is housed in a connector housing member 20 while an optical element 1 is housed in a shield case 10. The optical connector includes a connector housing member 20 which is made of resin and has a case storage recess 25 capable of housing the shield case 10, and a metal heatsink 30 which is attached to the connector housing member 20 so as to close a rear opening of the case storage recess 25. The heatsink section 30 comes into contact with the shield case 10 and is fitted into a rear opening of the case storage recess 25 while being exposed to the outside.

Abstract: A substantially tubular ferrule portion 5 is formed integrally with a housing body portion 15 of a substantially square tubular shape, and a protective hood portion 10 of a substantially square tubular shape is formed integrally with the housing body portion 15 in surrounding relation to the ferrule portion 5. A distal end portion of the ferrule portion 5 is disposed in a sequestered position within the protective hood portion 10, and a notch 10a is formed in a bottom wall of the protective hood portion 10, and the distal end portion of the ferrule portion 5 is exposed laterally to the exterior through this notch 10a.

Abstract: The underground-laying depth of an electric power cable is obtained on the basis of temperature data of the electric power cable laid underground, ambient temperature data of a place where the electric power cable is laid underground, calorific power data of the electric power cable, thermal resistivity of soil where the electric power cable is laid underground, and radiation thermal resistivity of the surface of the electric power cable. The ambient temperature means the temperature of a place which is not influenced by the heat of the electric power cable.