Omron Corporation

Omron Tateisi Electronics Co.

Yoichi Nakanishi

Kazumi Sako

Ryuji Kawamoto

Kazuki Fukuda

Yuichi Suzuki

Kiyoshi Imai

Hirokazu Tanaka

Ryuichi Sato

Masayuki Noda

Tetsuya Onishi

Toshifumi Tsuruta

Muneo Nakata

Yuji Fujita

Mitsuhiro Kawai

Masao Yajima

Hidekazu Yoneyama

Hiroyuki Sagawa

Sadayoshi Yasuda

Yuichi Kariya

Ikuo Takegahara

Ryutaro Tsuchiya

Tomoki Uesugi

Junichi Kanetani

Eiji Fujisawa

An optical switch device () of such a type that the COUPLED state of light guides is switched by moving a light reflective member capable of securely preventing a movable body with the light reflective member from being displaced and allowing a reduction in thickness, comprising a pressing member () switching the movable body () with a prism mirror () mounted thereon between a clamped state and an unclamped state, a twisted spring () energizing the pressing member in a clamping direction, and a magnetic drive circuit () for clamping driving the pressing member () in the unclamped state against the torsion spring (). The magnetic drive circuit () for clamping further comprises a clamp coil () on the fixed member () side and clamp magnets () on the pressing member () side. The clamp magnets () are disposed so as to hold the clamp coil () from the inside and outside of the opening thereof with the different poles thereof opposed to each other.

Optical switch device

A first light reflection surface () and a second light reflection surface () are formed on a lower half of a mirror block () in a state that these light reflection surfaces (), () make 90 degrees therebetween. A first light reflection surface () and a second light reflection surface () are also formed on an upper half of the mirror block () in a state that these light reflection surfaces (), () make 90 degrees therebetween. A third light reflection surface () and a fourth light reflection surface () are formed between the first light reflection surface () and the second light reflection surface () such that these light reflection surfaces (), () make 90 degrees therebetween. According to this optical switch, by changing a region which reflects the light between the upper half and the lower half of the mirror block (), the coupling relationship between an input optical fiber and an output optical fiber can be changed over.

Optical switch

Two mirrors () and () making an angle of 90 degrees are formed on a front face of a mirror member (). An optical fiber for input () and an optical fiber for output () are held in a fiber array () with a predetermined interval, and an emission lens () and an injection lens () are provided on a front face of the fiber array () in a way that they are opposed to end faces of the optical fiber for input () and the optical fiber for output () respectively. According to the variable optical attenuator, when the mirror member () is straightly moved by an actuator (), light attenuation can be varied thereby.

Variable optical attenuator

An optical switch device for driving a movable member mounting a light reflection member thereon by a magnetic drive circuit, wherein, in an optical waveguide switching device () as an optical switch device, a movable member () mounting thereon an optical waveguide switching prism mirror () is driven in an X direction by a magnetic drive circuit while being floated from a fixing-side member () in order to improve stability of a light outputting position. When the movable member () is moved to a desired position in the X direction, power supply to solenoids () is stopped in a clamp mechanism (), and a clamp plate () presses the movable member () against the fixing-side member () to fix it. A V-groove () formed in the movable member () and a V-groove () formed in the fixing-side member () mesh each other to position the movable member () in the X direction.

The present invention provides an optical switch that is provided with a plurality of output side optical transmission means; at least one input side optical transmission means; reflecting meanswhich moves to be positioned with respect to any one of the output side optical transmission meansand reflects an optical signal to the input side optical transmission means; and driving meanswhich moves the reflecting meansto each of the output side optical transmission means

An object of this invention is to provide an electromagnetic relay with better isolation characteristics. The invention discloses an isolation wall and an isolation rib in an electromagnetic relay for separating a movable iron member from a movable contact member to provide better isolation characteristics.

Electromagnetic relay

Closed type electromagnetic relay

An electromagnetic relay of the present invention has a large dielectric strength between a coil and each contact because of an insulative member interposed therebetween. Even if the straight distance between the coil and each contact is small, it is possible to obtain a sufficient dielectric strength without an extra process. Moreover, since a leg part of the coil terminal is coated with an insulative resin, the dielectric strength between the coil terminal and a movable iron element or a movable contact piece is enhanced. An insertion window formed in an insulating plate of the coil helps to insert a thickness gauge with high positioning accuracy.

An electromagnetic relay where a movable stand is retained by a pair of opposing leaf springs, the movable stand is operated in the opposing direction of the leaf spring in accordance with the energization, deenergization of the electromagnet, the movable terminal is disengageably brought into contact against the fixing terminal supported through the support stand, and the movable stand is provided with a through hole in the vertical direction to be press-fitted, mounted in it, a groove in the vertical direction in the contact portion of the movable stand and the leaf spring, and a passage for guiding into the groove portion the bonding agent to be put into the through hole.

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Kyoto, Japan

Yoichi Nakanishi