Canon Kabushiki Kaisha

Canon Precision Inc.

Seiyo Aizu

Hirotake Ando

Hiroki Kobayashi

Youhei Yamamoto

A gimbal configured to stabilize a supported unit in a predetermined attitude includes an acceleration sensor configured to detect an acceleration of the supported unit, a first calculator configured to calculate attitude information of the supported unit using the acceleration, a rotator including a rotor member rotatable relative to a stator member, an angle detecting sensor configured to detect a rotation angle of the rotator, and a second calculator configured to calculate a correction value for the angle information using the attitude information and the angle information of the rotator based on the rotation angle.

Gimbal and system having the same

A stage apparatus comprises an incremental scale fixed to a movable unit and having a predetermined length shorter than a distance the movable unit can move in a first direction, a first and a second sensor that are arranged in the first direction with an interval therebetween shorter than the predetermined length, and a detection unit that detects an origin point position set in a movable range of the movable unit. In an origin return, if the movable unit is at a position at which both the first sensor and the second sensor can read the scale, the apparatus moves the movable unit to the origin point position by a predetermined distance, then moves the movable unit at a lower speed until the origin point position is detected.

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Tsugaru, Japan

Seiyo Aizu