Abstract: A thermosensitive part sensing temperature; a temperature sensor for measurement provided in the unit and measuring temperature by contacting the unit with a body to be measured; a temperature detecting part detecting, from when the unit contacts the body, the time when the sensor senses a difference from an initial temperature of the sensor, and a measured temperature of the sensor at that time, and detecting, from when the difference is sensed, a time after a certain length of time and a measured temperature of the sensor at that time; an estimating part estimating, from the time when the difference is sensed and a time after a certain length of time, the time when the thermosensitive part contacts the body, and the measured temperature at that time; and a heat conduction analyzing part estimating the measured temperature based on output information from the temperature detecting part and the estimating part.

Abstract: A coat removing method of removing a coat of a coated optical fiber 3 made of a glass fiber 3a and the coat of polyimide resin 3b covering the glass fiber 3a includes holding the coated optical fiber 3 with fiber clamps 5 and 7 at two locations spaced by a predetermined distance in a length direction of the coated optical fiber 3, applying tension to the coated optical fiber 3 in the length direction, pressing a coat removal blade 29 to the coated optical fiber 3 in the tension-applied state in a direction crossing the length direction, to bend the coated optical fiber 3, and moving the coat removal blade 29 in the length direction along the coated optical fiber 3 in the bent state, thereby removing the coat.

Abstract: A cutting device for cutting an optical fiber running in a first direction includes a supporting piece having a free end and a fixed end and having resilience, a cutting blade supported by the supporting piece that comes into contact with the optical fiber to make a right angle with the optical fiber at a point of the contact, and a driving device. The driving device is configured to press the supporting piece in a second direction in a plane perpendicular to the first direction, with the second direction not intersecting with the first direction.

Abstract: A coat removing method of removing a coat of a coated optical fiber 3 made of a glass fiber 3a and the coat of polyimide resin 3b covering the glass fiber 3a includes holding the coated optical fiber 3 with fiber clamps 5 and 7 at two locations spaced by a predetermined distance in a length direction of the coated optical fiber 3, applying tension to the coated optical fiber 3 in the length direction, pressing a coat removal blade 29 to the coated optical fiber 3 in the tension-applied state in a direction crossing the length direction, to bend the coated optical fiber 3, and moving the coat removal blade 29 in the length direction along the coated optical fiber 3 in the bent state, thereby removing the coat.

Abstract: A device for setting an optical fiber in place is comprised of: a pedestal capable of supporting the optical fiber; a clamper having the optical fiber gripped between the clamper and the pedestal; and a pressure device having a first elastic member bearing a first load area, a second elastic member bearing a second load area distinct from the first load area, and a limiter device limiting a deformation range of the second elastic member, the pressure device being so linked with the clamper as to, in the deformation range, cause the second elastic member to pressurize the clamper, and, after reaching a limit of the deformation range, cause the first elastic member to pressurize the clamper.

Abstract: An optical fiber feeding mechanism of a scrap collector includes a lower roller and an upper roller for advancing an optical fiber scrap cut out by an optical fiber cutter into a scrap receptacle, and further includes a roller holding member. In a state in which the lower roller and the upper roller are not actuated, the roller holding member forms a clearance enough to keep the lower roller and the upper roller from holding an optical fiber therebetween. After the optical fiber cutter cuts the optical fiber, the roller holding member lowers the upper roller toward the lower roller in accordance with the rotation of the upper roller so that the optical fiber may be held by and between the lower roller and the upper roller.

Abstract: A coat removing method of removing a coat of a coated optical fiber 3 made of a glass fiber 3a and the coat of polyimide resin 3b covering the glass fiber 3a includes holding the coated optical fiber 3 with fiber clamps 5 and 7 at two locations spaced by a predetermined distance in a length direction of the coated optical fiber 3, applying tension to the coated optical fiber 3 in the length direction, pressing a coat removal blade 29 to the coated optical fiber 3 in the tension-applied state in a direction crossing the length direction, to bend the coated optical fiber 3, and moving the coat removal blade 29 in the length direction along the coated optical fiber 3 in the bent state, thereby removing the coat.

Abstract: An optical fiber feeding mechanism of a scrap collector includes a lower roller and an upper roller for advancing an optical fiber scrap cut out by an optical fiber cutter into a scrap receptacle, and further includes a roller holding member. In a state in which the lower roller and the upper roller are not actuated, the roller holding member forms a clearance enough to keep the lower roller and the upper roller from holding an optical fiber therebetween. After the optical fiber cutter cuts the optical fiber, the roller holding member lowers the upper roller toward the lower roller in accordance with the rotation of the upper roller so that the optical fiber may be held by and between the lower roller and the upper roller.

Abstract: A covering device for a high voltage part in an optical fiber fusion splicer includes a cover body, removably connectable to a support table, including an electrode holder adapted to removably hold an electrode rod. The covering device includes an electrode retainer removably connectable to the cover body, adapted to press the electrode rod against the support table.

Abstract: An optical fiber loading device includes a loading stage, which includes a first clamp block, fitted in a first opening defined in a first base portion, including first grooves adapted to position first optical fibers of a first optical fiber cable; and a first clamp arranged to releasably contact the first clamp block to clamp the first optical fibers therebetween, wherein the first clamp block and first base portion are formed of two different materials. The device also includes a first holder adapted to hold the first optical fiber cable, and to move the first optical fiber relative to the loading stage to bring the first optical fibers in contact with second optical fibers of a second optical fiber cable.

Abstract: An optical fiber loading device includes a loading stage, which includes a first clamp block, fitted in a first opening defined in a first base portion, including first grooves adapted to position first optical fibers of a first optical fiber cable; and a first clamp arranged to releasably contact the first clamp block to clamp the first optical fibers therebetween, wherein the first clamp block and first base portion are formed of two different materials. The device also includes a first holder adapted to hold the first optical fiber cable, and to move the first optical fiber relative to the loading stage to bring the first optical fibers in contact with second optical fibers of a second optical fiber cable.

Abstract: A covering device for a high voltage part in an optical fiber fusion splicer includes a cover body, removably connectable to a support table, including an electrode holder adapted to removably hold an electrode rod. The covering device includes an electrode retainer removably connectable to the cover body, adapted to press the electrode rod against the support table.

Abstract: An optical fiber splicer for splicing a plurality of first optical fibers arranged in spaced relationship with each other and a plurality of second optical fibers arranged in opposed relationship with the first optical fibers. The optical fiber splicer includes an XY table movable in XY directions orthogonal to each other, a tray mounted on the XY table, and first and second clamps for respectively clamping a selected one of the first optical fibers and a selected one of the second optical fibers to be spliced to the selected first optical fiber. The optical fiber splicer further includes first and second electrodes extending vertically and aligned with each other, first and second cameras located so as to interpose the first electrode, and an image processing unit for processing images picked up by the first and second cameras.

Abstract: An optical fiber splicer for splicing a plurality of first optical fibers arranged in spaced relationship with each other and a plurality of second optical fibers arranged in opposed relationship with the first optical fibers. The optical fiber splicer includes an XY table movable in XY directions orthogonal to each other, a tray mounted on the XY table, and first and second clamps for respectively clamping a selected one of the first optical fibers and a selected one of the second optical fibers to be spliced to the selected first optical fiber. The optical fiber splicer further includes first and second electrodes extending vertically and aligned with each other, first and second cameras located so as to interpose the first electrode, and an image processing unit for processing images picked up by the first and second cameras.