Abstract: Provided is an optical cable monitoring system for monitoring a health of optical cables including plural optical fibers. The system includes an optical power detector including a light power monitor, a failure determination unit and an alert signal generator, the light power monitor measuring light intensity of an extracted portion of communication light transmitted through each optical fiber and obtaining communication light intensity based on the measured light intensity, the failure determination unit determining presence of failure in each optical fiber based on the measurement result of the light power monitor, and the alert signal generator generating an alert signal when failure is determined to occur by the failure determination unit, and a monitoring device that receives an alert signal from the optical power detector.

Abstract: An optical fiber monitoring system monitors an inter-building optical fiber connecting a first building and a second building. The optical fiber monitoring system includes a first visualization panel provided in the first building and optically connected to an one end of the inter-building optical fiber, a second visualization panel provided in the second building and optically connected to an other end of the inter-building optical fiber, and a monitoring light source provided in the first building to input a monitoring light into the inter-building optical fiber. The first visualization panel includes a first photosensor that partially leaks the monitoring light inputted into the inter-building optical fiber from the monitoring light source and detects an amount of a leaked light. The second visualization panel includes a second photosensor that partially leaks a light from the inter-building optical fiber and detects amount of a leaked light.

Abstract: A load-relieving apparatus includes a wire cable 36 with a free end and a fixed end opposite to the free end, a locking part 361 being attached to the free end, a winding part 334 configured to wind the wire cable 36 from a fixed-end side thereof, a pulley 335 interposed between the winding part 334 and the locking part 361, and configured to stretch the wire cable therebetween, and a cover 336 with a through hole 338H formed therein through which the wire cable 36 is inserted, the cover 336 being interposed between the locking part 361 and the pulley 335, and formed so as to cover at least a part of the pulley 335. Further, the through hole 338H is configured so that a relative position of the through hole 338H with respect to a rotation axis of the pulley 335 changes.

Abstract: Provided is a liquid crystal display element that can be baked at a low temperature when forming a liquid crystal alignment film capable of imparting an alignment regulating property and a pretilt angle developing property via a photoalignment method. Further provided is a liquid crystal display element in which the liquid crystal pretilt angles are highly stable, and display burn-in hardly occurs even due to long usage. Further provided are a vertical liquid crystal alignment film to be used in the liquid crystal display element, and a liquid crystal aligning agent with which it is possible to provide the vertical liquid crystal alignment film.

Abstract: The present invention relates to a liquid crystal aligning agent which contains a polymer that has a site having an isocyanate group and/or a blocked isocyanate group, a site having a photoreactive group having photoalignment, and a site having at least one functional group selected from an amino group and a hydroxyl group in each molecule. The present invention provides a liquid crystal display element which enables baking at low temperatures during the formation of a liquid crystal alignment film by a photoalignment method, the liquid crystal alignment film being able to be imparted with alignment regulating property and pretilt angle developing property.

Abstract: The present disclosure aims to provide an evaluation apparatus and an evaluation method capable of evaluating a walking assistance apparatus by simulating an actual person's walking motion. An evaluation apparatus 1 includes a placement part 5 on which a sole part of a walking assistance apparatus 4 to be evaluated is placed; an actuator 3 configured to apply a load to the walking assistance apparatus 4 in a direction of the placement part 5 in a state in which the sole part faces the placement part 5; and an actuator 6 configured to change a relative positional relation between the placement part 5 and the sole part.

Abstract: It is required to share mounting tools related to a walking assistance apparatus as much as possible. It is also required to omit troublesome work when a user starts using the walking assistance apparatus as much as possible. A cupsole that a user wears and is fixed to a foot sole plate of a walking assistance apparatus that assists a motion of a leg part of the user, the cupsole including: a main body part on which the user's foot is placed; and an index member that is fixed to the main body part and is configured to determine an attachment position with respect to a reference index provided in the foot sole plate, the attachment position varying for each user, in which the index member can be attached to or detached from the main body part is provided.

Abstract: The present invention provides the following: a photo alignment method-use liquid crystal aligning agent used to obtain a photo alignment method-use liquid crystal alignment film that does not cause bright spots even when negative liquid crystals are used, and that is capable of achieving good after-image characteristics; a liquid crystal alignment film obtained from the liquid crystal aligning agent; and a liquid crystal display element provided with the liquid crystal aligning agent. Provided is the liquid crystal aligning agent which contains a polyimide or polyimide precursor obtained from a reaction between: a tetracarboxylic acid dianhydride represented by formula (1) (in the formula, X1 is as set forth in the present specification) or a derivative thereof; and a diamine component that contains a diamine represented by formula (2) (in the formula, R1, Z1 and n are as set forth in the present specification).

Abstract: An optical fiber monitoring system monitors an inter-building optical fiber connecting a first building and a second building. The optical fiber monitoring system includes a first visualization panel provided in the first building and optically connected to an one end of the inter-building optical fiber, a second visualization panel provided in the second building and optically connected to an other end of the inter-building optical fiber, and a monitoring light source provided in the first building to input a monitoring light into the inter-building optical fiber. The first visualization panel includes a first photosensor that partially leaks the monitoring light inputted into the inter-building optical fiber from the monitoring light source and detects an amount of a leaked light. The second visualization panel includes a second photosensor that partially leaks a light from the inter-building optical fiber and detects amount of a leaked light.

Abstract: A communication light visualization structure includes a duplex LC communication light visualization adapter including an opening portion connected to a first light extraction space and a second light extraction space, and a guide groove formed in the opening portion; and a duplex LC communication light detector including a base portion that has the same cross-sectional shape as the opening portion, a first light receiver that receives first leakage light, a second light receiver that receives second leakage light, a light blocking wall that shields the first light extraction space and the second light extraction space from each other, and a display portion that individually displays a communication status of a first communication path and a second communication path. The guide groove is formed at a position such that cross sections of the opening portion and the base portion fit together in only one direction.

Abstract: A duplex LC communication light detecting adapter for forming two parallel optical transmission lines therein when a duplex LC connector is inserted so as to extract as a leak light a portion of communication light transmitting through the optical transmission lines, including an adapter main body that is opaque to light. The adapter main body includes a first space defined by a first wall and isolated from other spaces to arrange a first optical transmission line of the two optical transmission lines, a first light extraction hole for extracting the leak light from the first space, a second space defined by a second wall and isolated from other spaces to arrange a second optical transmission line of the two optical transmission lines, and a second light extraction hole for extracting the leak light from the second space.

Abstract: A communication light visualization module includes multiple communication light visualization adapters into which an optical connector is fitted and to which the optical connector is optically connected and a housing that houses the communication light visualization adapters in an arrangement manner. Each of the communication light visualization adapters includes a light extraction hole from which part of communication light transmitted through an optical communication path is extracted. The housing includes a common protection cover that collectively covers the light extraction holes of the plurality of communication light visualization adapters or collectively renders the light extraction holes uncovered.

Abstract: A communication light detection adapter includes an adapter main body in which a light extraction hole is formed, a sliding lid attached to the adapter main body so as to slide between a closed position to close the light extraction hole and an open position to open the light extraction hole, and an energizing member to apply a pressure to the sliding lid in a direction from the open position toward the closed position.

Abstract: A communication light visualization structure includes a duplex LC communication light visualization adapter including an opening portion connected to a first light extraction space and a second light extraction space, and a guide groove formed in the opening portion; and a duplex LC communication light detector including a base portion that has the same cross-sectional shape as the opening portion, a first light receiver that receives first leakage light, a second light receiver that receives second leakage light, a light blocking wall that shields the first light extraction space and the second light extraction space from each other, and a display portion that individually displays a communication status of a first communication path and a second communication path. The guide groove is formed at a position such that cross sections of the opening portion and the base portion fit together in only one direction.

Abstract: A communication light visualization module includes multiple communication light visualization adapters into which an optical connector is fitted and to which the optical connector is optically connected and a housing that houses the communication light visualization adapters in an arrangement manner. Each of the communication light visualization adapters includes a light extraction hole from which part of communication light transmitted through an optical communication path is extracted. The housing includes a common protection cover that collectively covers the light extraction holes of the plurality of communication light visualization adapters or collectively renders the light extraction holes uncovered.

Abstract: A duplex LC communication light detecting adapter includes an adapter main body to form two parallel optical transmission lines therein when a duplex LC connector is inserted, the adapter main body including a side in which a light extraction hole is formed, the light extraction hole being located at a vertex of a isosceles triangle having a base that is a line segment connecting centers of the two optical transmission lines in a cross section and opened in a direction perpendicular to the line segment, and a sleeve holder formed integrally with the adapter main body to hold a sleeve that houses a ferrule of the duplex LC connector. The sleeve holder includes an opening section that is opened toward the light extraction hole in a range of more than 30 degrees to less than 120 degrees relative to the line segment in a cross section.

Abstract: A communication light detector is removably attached to a communication light visualizing adaptor with a light extraction hole so as to detect whether a communication light is transmitted through the communication light visualizing adaptor. The detector includes a detector main body including a bottom surface that faces the light extraction hole, mounts a light-receiving element and is formed so as to adapt to a first communication light visualizing adaptor, and an attachment that includes a front surface facing the bottom surface, a back surface facing the light extraction hole and a though-hole penetrating from the front surface to the back surface so that the light-receiving element is exposed from the front surface to the back surface, the front surface being formed so as to adapt to the bottom surface and the back surface being formed so as to adapt to a second communication light visualizing adaptor.

Abstract: A repeater includes a plurality of input-side connectors and a plurality of output-side connectors corresponding to the input-side connectors that are configured such that communication cables connected to the input-side connectors are connected to other communication cables connected to the output-side connectors, and a detection indicating circuit provided between the input-side connectors and the corresponding output-side connectors. The detection indicating circuit includes a detection circuit branching, extracting and outputting a portion of signal transmitted between the input-side connectors and the corresponding output-side connectors, and an indicating circuit for indicating an establishment of information communication according to an output from the detection circuit.

Abstract: A communication light detecting structure includes a communication optical fiber configured to transmit communication light; a leakage optical fiber optically connected to the middle of the communication optical fiber via optical connection portions, the leakage optical fiber being different in core refractive index from the communication optical fiber; and a light detecting unit configured to detect part of the communication light leaking from the optical connection portions as leakage light. A communication light detecting optical connector includes the communication light detecting structure. A communication light detecting optical cable includes the communication light detecting structure. The communication optical fiber and the leakage optical fiber may have the same core diameter. The communication optical fiber and the leakage optical fiber may have the same cladding refractive index.

Abstract: A communication light detector is configured to draw a leak portion of communication light being transmitted via a communication light detecting adapter as a leaky light, receive the leaky light, and detect whether the communication light is being transmitted via the communication light detecting adapter or not. The communication light detector includes a light receiving element configured to receive the leaky light, and an optical filter configured to pass only the leaky light toward the light receiving element.