Abstract: Totally six polarization-maintaining optical fibers having the same beat length are arranged at both ends of a single-mode optical fiber and both ends of a single-mode optical fiber coil, respectively. An angle between a principal axis of polarization in a first polarization-maintaining optical fiber and a plane of polarization of linearly polarized light from a light source is 45 degrees. The optical length of each of the six polarization-maintaining optical fibers is larger than a coherent length of the linearly polarized light from the light source. The total of the optical lengths of the six polarization-maintaining optical fibers into which polarization rotation in the process of passing through the single-mode optical fibers is factored is larger than the coherent length of the linearly polarized light from the light source.

Abstract: A connector includes: a contact in which an annular groove is formed on a middle portion; a sleeve that includes a cylindrical portion that allows the contact to be inserted therethrough, tongue pieces that are extended from the cylindrical portion, and are arranged in a circumferential direction of the cylindrical portion, and a claw portion that is protruded inward in a radial direction on each front end of the tongue pieces; a housing in which a step surface facing rearward is formed on an inner wall facing an accommodation space; and a holder that has a C-shaped cross section. The sleeve is attached to the contact in a manner such that the claw portion is fitted into the annular groove. The contact and the sleeve are accommodated in the accommodation space with the tongue pieces abutted on the step surface and are retained in the accommodation space by the holder.

Abstract: In a charging connector, contacts are divided into a first terminal group and a second terminal group. The first terminal group is located upward of the second terminal group. A housing has a first surrounding portion which protrudes from a main surface thereof and surrounds the first terminal group. A mating portion has an attaching portion, a second surrounding portion and an upper protection portion. The attaching portion is attached on the main surface of the housing. The attaching portion is provided with an opening which penetrates therethrough in the front-rear direction. The first surrounding portion of the housing extends forward through the opening. The second surrounding portion is located downward of the opening. The second surrounding portion protrudes forward from the attaching portion and surrounds the second terminal group. The upper protection portion is located upward of the opening and protrudes forward from the attaching portion.

Abstract: A split ring resonator includes a first conductive member having a split ring shape, a second conductive member, and a third conductive member. The second and third conductive members have a split therebetween and are electrically connected with different ends of the first conductive member. The second conductive member includes a first portion belonging to a first layer substantially parallel to a plane to which the first conductive member belongs, a second portion belonging to a second layer substantially parallel to the plane and facing the first layer, and a third portion electrically connecting the first and second portions. The third conductive member includes fourth and fifth portion respectively belonging to the first and second layers, and a sixth portion electrically connecting the fourth and fifth portions. At least parts of the first and fifth portions face each other in a direction substantially perpendicular to the plane.

Abstract: A workpiece processing apparatus comprises a base member formed with a hydraulic chamber fillable with liquid, a punch and a piston. The hydraulic chamber has a workpiece processing chamber and a hydraulic-pressure generation chamber. The punch is movable between an initial position which is apart from the workpiece processing chamber and a received position at which the punch is partially received in the workpiece processing chamber. When the punch is moved from the initial position to the received position, the punch presses the workpiece into the workpiece processing chamber. The piston is partially received in the hydraulic-pressure generation chamber and receives a pressing force directed into the hydraulic-pressure generation chamber in a course of movement of the punch from the initial position to the received position, and the piston is moved in accordance with the pressing force and increases hydraulic pressure of the liquid.

Abstract: A workpiece processing apparatus comprises a base member, a slider located above the base member and a punch projecting downward from the slider. The base member is formed with a hydraulic chamber fillable with liquid. The hydraulic chamber has a workpiece processing chamber and a hydraulic-pressure generation chamber which are coupled together. Each of the workpiece processing chamber and the hydraulic-pressure generation chamber extends in the upper-lower direction and opens upward. The base member comprises a piston which is partially received in the hydraulic-pressure generation chamber. When the slider is moved downward, the punch is moved downward and presses the workpiece into the workpiece processing chamber, and the piston receives a downward force and is moved downward. The thus-moved piston increases hydraulic pressure of the liquid.

Abstract: An atomic interferometer includes: an optical system including an optical modulating device that includes: an optical fiber for a first laser beam to propagate therein; and a frequency shifter connected to the optical fiber and configured to shift the frequency of the first laser beam, the optical system being configured to generate a moving standing light wave from counter-propagation of the first laser beam from the optical modulating device and a second laser beam; and an interference system for making an atomic beam interact with three or more moving standing light waves including the moving standing light wave.

Abstract: An electronic equipment comprises a case and a connector which is attached to the case. The connector comprises a housing and a waterproofing member. The waterproofing member is sandwiched by a mating connector and a side portion of the housing in a second direction when the connector is mated with the mating connector. The waterproofing member has at least one first contact portion, at least one second contact portion, at least one third contact portion and at least one fourth contact portion. The third contact portion is pressed against the side portion in the second direction by elasticity of the waterproofing member upon the mating of the connector with the mating connector. The fourth contact portion is pressed against and in contact with the mating connector in the second direction by the elasticity of the waterproofing member upon the mating of the connector with the mating connector.

Abstract: A device includes a first sealing member, a second sealing member, a first circuit member and a second circuit member. The first sealing member basically includes a first film formed with an opening and includes a frame film. At least one of the first circuit member and the second circuit member includes an exposed portion and a seal portion which surrounds the exposed portion. The frame film has a film-seal portion and a circuit-seal portion. The film-seal portion is bonded to the first film to surround the opening. The circuit-seal portion is bonded to the seal portion to surround the exposes portion. The device is formed with a closed space which is enclosed by the first sealing member and the second sealing member. The exposed portion is exposed to the outer space located outside the device.

Abstract: A device includes a first sealing member, a second sealing member, a first circuit member and a second circuit member. The first sealing member includes, as a base thereof, a first film formed of a film and includes a conductive portion made of conductor. The device is formed with a closed space. The closed space is enclosed by the first sealing member and the second sealing member and is shut off from an outer space located outside the device. The first circuit member and the second circuit member are shut in the closed space and include a first contact point and a second contact point, respectively. At least one of the first circuit member and the second circuit member includes an electrode. The conductive portion is in contact with the electrode in the closed space and is partially exposed to the outer space located outside the device.

Abstract: An adjuster performs simultaneous irradiation of M laser beams to an atomic beam, where M is a predetermined integer satisfying 3??M. The course of each of the M laser beams intersects with the course of the atomic beam. A component, in a direction perpendicular to the course of the atomic beam, of the sum of radiation pressure vectors that the M laser beams respectively have is zero.