Optical positioning device

摘要

The optical position measuring unit has a measuring scale (10) with a measuring division which is arranged along a measuring direction (x) in a movable manner, where the measuring scale has a spatially limited marking (15) at a defined position along the measuring direction. The marking differs from the measuring division. Another measuring scale (20) is provided with another measuring division which is arranged along another measuring direction in a movable manner. The latter measuring scale has a reference marking (25) at a position.