Abstract: An optical fiber bundle structure includes: plural optical fiber core wires; a crossing preventing member; and a grasping member. Further, the crossing preventing member has slits and the widths of the slits positioned at the respective sides are each equal to or larger than a difference between: a length of one side of a polygon circumscribing the plural optical fiber core wires at a hindmost end portion of the slits at the trailing end; and a length of one side of a polygon circumscribing the plural optical fiber core wires at the leading end.

Abstract: A laser processing apparatus includes: at least two first input optical fibers; an output optical fiber; a coupler configured to optically couple a first end of a bundle portion, in which the at least two first input optical fibers are bundled, to a second end of the output optical fiber; at least one first light source optically connected to one of the first input optical fibers to output laser light; and an optical head optically connected to the output optical fiber to output laser light and passing through the first input optical fiber and the output optical fiber. In a cross section intersecting an axial direction of the first end, a cladding of the first input optical fiber has an extending portion extending linearly in a direction intersecting the axial direction between cores of two first input optical fibers adjacent in a circumferential direction.

Abstract: Provided is a sample analysis apparatus including: a syringe pump; a channel switch valve; a mixing container; a detection unit configured to detect a concentration of a specified substance contained in a sample solution; and a control unit configured to control the syringe pump and the channel switch valve. The channel switch valve includes a sample port, a reagent port, and a detection port connected to a detection pipe on which the detection unit is arranged. The control unit controls the syringe pump and the channel switch valve to draw the reagent solution from the reagent pipe to the mixing container, draw the sample solution from the sample pipe to the mixing container, draw the reagent solution from the reagent pipe to the mixing container, and supply a mixture solution containing the sample solution and the reagent solution from the mixing container to the detection unit.

Abstract: An optical coupler includes: input-type optical fibers; an output-type optical fiber; and radiant light processing units. The input-type optical fibers are bundled at leading end side to form a fiber bundle portion, and leading end portion of the fiber bundle portion is connected to the output-type optical fiber. In at least either the input-type optical fibers or the output-type optical fiber, a tapered portion is formed in which cross-sectional area is tapered to become narrower in light traveling direction indicating direction from the input-type optical fibers toward the output-type optical fiber. The number of the tapered portion is equal to or greater than two. Each radiant light processing unit is disposed to mutually overlap with one of the tapered portions or away from one of the tapered portions in the light traveling direction, and is disposed on outer periphery of the input-type optical fibers or the output-type optical fiber.

Abstract: A surface treatment apparatus includes a treatment vessel including a treatment space in which a metal component is disposed, a spray nozzle that supplies mist of a non-chromate conversion treatment liquid to the treatment space, and a circulation device that collects the non-chromate conversion treatment liquid from the treatment space and supplies the non-chromate conversion treatment liquid to the spray nozzle.

Abstract: An optical fiber bundle structure includes: plural optical fiber core wires; a crossing preventing member; and a grasping member. Further, the crossing preventing member has slits and the widths of the slits positioned at the respective sides are each equal to or larger than a difference between: a length of one side of a polygon circumscribing the plural optical fiber core wires at a hindmost end portion of the slits at the trailing end; and a length of one side of a polygon circumscribing the plural optical fiber core wires at the leading end.

Abstract: An acidic treatment liquid processing apparatus includes: a tank having an interior space; a diaphragm permeable to a metal cation and separating the interior space of the tank into a first chamber and a second chamber; a first electrode disposed in the first chamber; a second electrode disposed in the second chamber; a power supply configured to apply a voltage while using the first electrode as an anode and the second electrode as a cathode; a first liquid passing part configured to pass an acidic treatment liquid containing a dichromate ion and a metal cation into the first chamber; and a second liquid passing part configured to pass an acid aqueous solution into the second chamber.

Abstract: A cleaning apparatus 200 is provided with: a treatment tank 10, which defines a treatment space 15 by the inner surfaces (11a, 11b) thereof and on the inner surfaces of which a water-repellent coating has been applied; a cleaning liquid supply device with nozzles 24a (cleaning liquid spray nozzles) for spraying, into the treatment space 15, a mist of a cleaning liquid CL for cleaning surface treatment processing liquid PL adhering to the surface of a metal part S and/or processing liquid PL adhering to the inner surface; and a drying device, which comprises an air compressor 23a and is for supplying drying air compressed by the air compressor 23a to the treatment space 15.

Abstract: A surface treatment apparatus includes a treatment vessel including a treatment space in which a metal component is disposed, a spray nozzle that supplies mist of a non-chromate conversion treatment liquid to the treatment space, and a circulation device that collects the non-chromate conversion treatment liquid from the treatment space and supplies the non-chromate conversion treatment liquid to the spray nozzle.

Abstract: A plurality of holes are formed in a ferrule. The holes are at sites penetrated by the tips of optical fibers. An opening is formed in the upper surface of the ferrule and an internal housing section is exposed from the opening. The housing section is at a site at which an optical fiber holding member is housed. The optical fibers are held by the optical fiber holding member. The optical fibers are multi-core fibers. In other words, the optical fibers have a specified axis of symmetry in a cross-section vertical to the longitudinal direction of the optical fibers and have orientation relative to a rotation direction having the longitudinal direction as the axis thereof.

Abstract: A connector with built-in bent optical fibers includes an optical fiber array including a plurality of bent optical fibers each having a bent portion and a linear portion formed integrally with the bent portion, a ferrule having a plurality of positioning mechanisms that align end portions of the plurality of bent optical fibers, and a resin portion disposed at an outer periphery of the bent portion. The resin portion is filled in the ferrule. The bent portion has a bending angle of 85°-150°. When the bent portion of one bent optical fiber is divided into a plurality of regions along a longitudinal direction at 10°, a variation in bend radius among the plurality of regions excluding regions corresponding to 10° at both ends is 0.3 mm or less, an outer diameter of the bent portion of the bent optical fiber is smaller than an outer diameter of the linear portion.

Abstract: A plurality of holes are formed in a ferrule. The holes are at sites penetrated by the tips of optical fibers. An opening is formed in the upper surface of the ferrule and an internal housing section is exposed from the opening. The housing section is at a site at which an optical fiber holding member is housed. The optical fibers are held by the optical fiber holding member. The optical fibers are multi-core fibers. In other words, the optical fibers have a specified axis of symmetry in a cross-section vertical to the longitudinal direction of the optical fibers and have orientation relative to a rotation direction having the longitudinal direction as the axis thereof.

Abstract: A connector with built-in bent optical fibers includes an optical fiber array including a plurality of bent optical fibers each having a bent portion and a linear portion formed integrally with the bent portion, a ferrule having a plurality of positioning mechanisms that align end portions of the plurality of bent optical fibers, and a resin portion disposed at an outer periphery of the bent portion. The resin portion is filled in the ferrule. The bent portion has a bending angle of 85°-150°. When the bent portion of one bent optical fiber is divided into a plurality of regions along a longitudinal direction at 10°, a variation in bend radius among the plurality of regions excluding regions corresponding to 10° at both ends is 0.3 mm or less, an outer diameter of the bent portion of the bent optical fiber is smaller than an outer diameter of the linear portion.

Abstract: An electronic apparatus includes a display processor that displays a plurality of routes intended uses of which are specified by a user in different display aspects in accordance with the intended uses of the plurality of routes.