Abstract:
An opto-electric composite transmission module includes a printed wiring board, an electrical connector provided on the printed wiring board, and an opto-electric hybrid board which is electrically connected to the printed wiring board via the electrical connector. The opto-electric hybrid board has a long shape. The opto-electric hybrid board includes an opto-electric conversion portion including a flexible wiring board, a metal support layer, and an optical waveguide film in order in a thickness direction, and an electrical connection portion disposed in one end portion in a longitudinal direction of the opto-electric hybrid board and including the flexible wiring board, and the metal support layer and/or the optical waveguide film. The electrical connection portion is inserted into the electrical connector.
Abstract:
An opto-electric hybrid board that sequentially includes an optical waveguide and an electric circuit boardtoward one side in a thickness direction. The electric circuit boardincludes a metal supporting layer, an insulating base layerdisposed on a one-side surface in the thickness direction of the metal supporting layer, a plurality of conductive layers sequentially disposed at one side in the thickness direction, and an intermediate insulating layerdisposed between the conductive layers . At least one layer selected from the group consisting of the metal supporting layer and the conductive layers is electrically insulated from the other layers.
Abstract:
The optical communication cable includes an optical cord, a connector, a first housing, a second housing, and a resin for fixing the optical cord. An end portion of the optical cord for connection to the connector has a first end region and a second end region. A tip portion of the plastic optical fibers in the first end region is connected to the connector. The resin is disposed so as to be in contact with the end portion of the optical cord and the second housing. Expression is satisfied:
t 1
≤
t 2
+ 5
( 1 )
where t1 is the coefficient of linear expansion of the resin and t2 is the coefficient of linear expansion of the plastic optical fibers.
Abstract:
The present invention provides a CIGS film production method which ensures that a CIGS film excellent in conversion efficiency can be produced at lower costs with higher reproducibility, and a CIGS solar cell production method using the CIGS film production method. The CIGS film production method includes: a stacking step of stacking an (A) layer containing indium, gallium and selenium and a (B) layer containing copper and selenium in this order in a solid phase over a substrate while heating at a temperature of higher than 250° C. and not higher than 400° C.; and a heating step of further heating the resulting stack of the (A) layer and the (B) layer to melt a compound of copper and selenium in the (B) layer into a liquid phase, whereby copper is diffused from the (B) layer into the (A) layer to cause crystal growth to provide a CIGS film.
Abstract:
A photoelectric conversion module plug includes a PCB, an electrical connector, an opto-electric hybrid board, an optical fiber, a photonic device, and a casing that accommodates them. The opto-electric hybrid board includes a core. The core includes a mirror surface. The electrical connector and the optical fiber are separately arranged in the first direction. The casing includes a first wall and a second wall that face each other at an interval in the thickness direction. The first wall has a first intermediate surface extending in a direction away from the second wall in the thickness direction. The first intermediate surface faces an electrical connector side in an arrangement direction in which the electrical connector and the optical fiber are arranged.
Abstract:
An opto-electric composite transmission module includes a motherboard and an opto-electric hybrid board. The opto-electric hybrid board includes an optical waveguide and an electric circuit board sequentially in the thickness direction. The optical waveguide includes a core layer, an under-cladding layer, and an over-cladding layer. The core layer includes a mirror. The electric circuit board includes a first terminal and a second terminal. The optical waveguide is disposed so that an opto-electric conversion element, which is electrically connected to the first terminal, can optically be connected to the mirror. The second terminal is electrically connected to the motherboard.
Abstract:
Provided is an optical connector that includes a ferrule and an optical fiber as a plastic optical fiber. The ferrule has a leading end face and a through hole for holding a fiber, the through hole having an opening end in the leading end face. The optical fiber has a leading end. The leading end of the optical fiber is inserted in the through hole and located at a retraction position retracted from the leading end face.