Patent ID: 6341037
Filing Date: 2002-01-22
Classification: G01B,G02B

Abstract:
A positioning stage comprising: a table for a workpiece to be rested; a base for supporting the table; and a feeding mechanism interposed between the table and the base for moving the table relative to the base in a predetermined movement direction along a surface of the table,the feeding mechanism comprising: a pair of pulley supported by either one of the table and the base; a loop-shaped drive force transmission member stretched between the pair of pulley, at least a part of the drive force transmission member extending in the movement direction; a joint for connecting the other one of the table and the base with a part of the drive force transmission member extending in the movement direction; and a pinch mechanism provided to the either one of the table and the base for holding a part of the drive force transmission member to drive the drive force transmission member.