Omron Corporation

Yoshihisa Ishida

Hayami Hosokawa

Akira Enami

Naru Yasuda

Hiroshi Sameshima

Junichi Tanaka

Akihiko Sano

Toshiaki Okuno

Keisuke Uno

Tamio Fujisaki

Yukari Terakawa

Hiroto Nozawa

Toshifumi Sumino

Katsuhiko Kato

Yasunari Kitajima

A light transmission module includes an optical converter for converting an electrical signal to an optical signal; a light transmission path for transmitting the optical signal converted by the optical converter; an electrical transmission path for transmitting an input electrical signal; and a control instructing unit for instructing stop of drive to the optical converter based on a detection of an input electrical signal. When an input electrical signal having a predetermined frequency is detected, the input electrical signal having the predetermined frequency is converted to an optical signal and transmitted in the light transmission path. When input of an electrical signal other than the predetermined frequency is detected, the electrical signal other than the predetermined frequency is transmitted by the electrical transmission path without being converted to an optical signal due to the stop of the drive of the optical converter.

Optical transmission module

A light transmission module has a light transmitting unit having a light emitting portion for outputting an optical signal corresponding to a data signal input as an electrical signal, and a first power supply controller for controlling a drive power supply of the light emitting portion, a light transmission path for transmitting the optical signal introduced from the light transmitting unit, a light receiving unit having a light receiving portion for receiving the optical signal output from the light transmission path and outputting an electrical signal corresponding to the optical signal, and a second power supply controller for controlling a drive power supply of the light receiving portion, and at least one electrical transmission path, connecting the light transmitting unit and the light receiving unit, for transmitting a control signal for controlling power supply to the light emitting portion and the light receiving portion to the first power supply controller and the second power supply controller. The first power supply controller and the second power supply controller control the power supply to the light emitting portion and the light receiving portion based on the control signal input via the electrical transmission path.

Optical transmission module and electronic device

A connection member (), which electrically connects a package () on which an optical element that converts an electric signal to an optical signal or converts an optical signal to an electric signal and at least one end portion including an incident/releasing port for an optical signal of an optical waveguide () that is optically coupled with the optical element to transmit the optical signal are mounted, and a second substrate () to each other, is provided with a holding unit having elasticity, which holds the package (), and a connection unit that is connected to the substrate ().

Optical transmission module, connecting part, and electronic device having optical transmission module

A connection member electrically connects an optical element configured to convert an electric signal to an optical signal or to convert an optical signal to an electric signal, a first substrate including an incident/releasing port of an optical transmission path for an optical signal at least one end portion thereof, and a second substrate to each other. The optical transmission path is optically coupled with the optical element to transmit the optical the connection. The connection member includes a connection unit connected to the second substrate and a holding unit having elasticity and holding the first substrate. The holding unit is provided with an electrode at a connecting position to the first substrate, and the holding unit holds the first substrate by connecting the first substrate to the electrode.

Module for optical wiring, connector for optical wiring, and connector for optical wiring with module for optical wiring

In a waveguideincluding a substrate, a lower clad, an upper clad, and a core, the outline of a cross section perpendicular to the light propagating direction of the coresurrounded by the lower cladhas a shape curved with respect to the center of the cross section. The separation in the waveguide is thereby prevented, and the reliability of the optical property is enhanced.

Waveguide, waveguide module, optical transmission device, and method of manufacturing waveguide

A method of manufacturing a film waveguide includes supplying a precursor consisting of monomer or oligomer of an elastomer having a flexural modulus after curing smaller than or equal to 1,000 MPa to a substrate; pressing a stamper on the precursor of the elastomer, applying pressure to the precursor of the elastomer by the stamper and thinning a film thickness of the precursor of the elastomer; forming a lower clad layer by curing the precursor of the elastomer; forming a core on the lower clad layer; and forming an upper clad layer on the lower clad layer and the core. A film waveguide has at least one of a lower clad layer or an upper clad layer formed by an elastomer having a flexural modulus smaller than or equal to 1,000 MPa. A sum of film thicknesses of the clad layers is less than or equal to 300 mm.

Film waveguide, method of manufacturing film waveguide, and electronic device

An optical element that realizes light path conversion of transmitting light at low loss, allows easy incorporation of functions such as light convergence or the like, and can be easily made into a compact size includes upper and lower main surfaces of a light path converting element of a plane shape are facing each other, and a light incoming surface and a light outgoing surface are adjacent surfaces at about 90 degrees. A curved light path converting surface is formed so as to face the light incoming surface and the light outgoing surface. Light coming in from the light incoming surface repeats full reflection between the upper main surface and the lower main surface and goes on, and is reflected by the light path converting surface, thereby the light path thereof is converted, and light is ejected from the light outgoing surface.

Growing community of inventors

Otsu, Japan

Yoshihisa Ishida