Other

Sumitomo Electric Industries, Limited

Sumitomo Wiring Systems, Limited

Autonetworks Technologies, Limited

Yuji Nakura

Kazuhiro Asada

Hitoshi Imazu

Tomomi Sano

Kiyoshi Kato

Masayuki Inoue

Ryosuke Hata

Mitsuaki Nishie

Hiroshi Tateishi

Masayoshi Yamaguchi

Kiyoshi Katou

An optical assembly includes a circuit board including an electrically conductive path formed by printed wiring technology, a photoelectric conversion element connected to the circuit board via the electrically conductive path, a resin member made of light transmissive synthetic resin and attached to the circuit board, and a shielding member made of metal. The resin member includes a sleeve into which a ferrule attached to an end of an optical fiber is inserted and integrally includes a lens through which an optical path passes. The optical path extends between the sleeve and the photoelectric conversion element. The shielding member is connected to the circuit board and arranged to cover the photoelectric conversion element. The shielding member includes a window through which the optical path extends to the photoelectric conversion element.

Optical assembly

A method of manufacturing an optical module includes the steps of applying the invisible light onto the resin member and the optical device, observing, with use of a camera, a part of the resin member located at the optical fiber coupling plane and an image formed at the optical fiber coupling plane by the optical device active layer while applying the invisible light onto the resin member and the optical device, aligning positions of the resin member and the circuit board with respect to each other while observing the part of the resin member located at the optical fiber coupling plane and the image formed at the optical fiber coupling plane, and fixing the resin member to the circuit board while maintaining the aligned positions of the resin member and the circuit board.

Optical module and method of manufacturing optical module

An optical connector includes a housing, a photoelectric conversion circuit board on which a photoelectric conversion element is mounted, and a resin member made of a light transmissive synthetic resin and arranged on a plate surface of the photoelectric conversion circuit board so as to cover the photoelectric conversion element. The photoelectric conversion circuit board is housed in the housing. The resin member includes a sleeve to which a ferrule attached to an end of an optical fiber is fitted. The sleeve of the resin member is arranged such that an axial direction thereof is substantially perpendicular to the plate surface of the photoelectric circuit board. The resin member integrally includes a lens on an axial line of the sleeve such that the lens faces the photoelectric conversion element.

Optical connector having resin member including lens

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.

Holding structures for optical elements of an optical connector

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.

Optical connector device

Optical connector with a surface mounted shield

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 thermally 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 and therefore heat, generated by the optical element, is transferred to the metal shield cover from the metal shield casing and is easily radiated from the metal shield cover to the exterior. The metal shield casing and the metal shield cover may be formed integrally to constitute a shield member.

Optical connector with electromagnetic noise shielding and heat radiating properties

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.

Optical connector

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.

Connector device and connector

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

Optical connector device and optical connector

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

Optical connector and shield connector therefor

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

Optical connector and structure of optical connector-packaging/mounting portion

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.

Connector for optical fiber cord

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.

Growing community of inventors

Nagoya, Japan

Yuji Nakura