Linear motion device with laser measurement equipment e.g. glass dimension measuring scale, has inner bore on movable runner for accommodating laser beam reflector

摘要

A runner (16) movable on a guide rail (12) has an inner bore (16b) into which a reflector (24) is accommodated. A position measurement equipment (18) used for detecting position of the runner, has a laser diode (20) to emit light towards the reflector.