Fujitsu Corporation

Katsuki Shirai

Taizan Kobayashi

Chikara Nishio

Eiji Takada

Kouji Uesaka

An imprint apparatus includes: a mold that forms a pattern in a resin on a base plate; a press unit that presses the mold against the resin; a flow channel that is formed by a wall of the mold and a surface of the resin, air flowing along the wall and the surface; a supply unit that supplies air to the flow channel; wherein the supply unit supplies air with a first pressure to the flow channel when the mold makes contact with the resin.

Imprint apparatus and imprint method

An optical rotary encoder includes a light source, a rotation body including a reflecting diffraction grating, a light receiving unit including a plurality of light receiving elements, a synthetic unit that combines output signals output from the plurality of light receiving elements to obtain a signal, which represents a fringe pattern component at a certain cycle, included in a light reflected by the reflecting diffraction grating and, and a detection unit that detects a direction based on a first signal and a second signal, the direction being a direction in which a distance between the rotation body and the light receiving unit varies, the first signal and the second signal being obtained by the synthetic unit, the first signal indicating a fringe pattern component having a cycle shorter than the certain cycle, the second signal indicating a fringe pattern component having a cycle longer than the certain cycle.

Optical rotary encoder with correction method reducing variation of a distance between a rotation body and a light receiving unit

A method is provided for detecting an orientation of an optical fiber including a flat surface as a part of a surface of the maintaining member. The method includes directing collimated light to the optical fiber through the flat surface of the maintaining member, receiving reflected light of the collimated light by using an optical sensor device, generating a brightness distribution image according to an output signal from the optical sensor device, identifying a reference point on a brightness distribution line appearing on the generated brightness distribution image, according to a position of the brightness distribution line in relation to a target orientation for the optical fiber, the brightness distribution line detectable on the brightness distribution image in correspondence to the reflected light received by the optical sensor device, and detecting the orientation of the optical fiber according to a coordinate of the reference point on the brightness distribution image.

Optical fiber orientation detection method and apparatus

A displacement measurement device includes a plurality of light receiving elements each of which outputs a signal corresponding to illuminance of interference fringe, the elements being arranged in a range of two periods of the interference fringe and arranged with an interval based on the period of the interference fringe in a movement direction of the interference fringe, a differential processing unit configured to perform differential processing on predetermined combinations of the signals output from the elements to generate four signals, a phase calculation unit configured to calculate a phase of the interference fringe on the basis of the signals output from the elements; and an output signal selection unit configured to select two signals from among the four signals on the basis of the phase of the interference fringe and select a signal of which absolute value is larger from among the two selected signals.

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Yokohama, Japan

Katsuki Shirai