PROTECTIVE GLASS UNIT FOR LASER OPTIC HEAD

摘要

PURPOSE: A protective glass unit for a laser optic head is provided to easily perform an exchange operation conveniently adhering and installing by using a magnetism in an inside adhesion side of an air nozzle by installing an attaching ring in which a magnet pad is adhered to an edge of a protective glass. CONSTITUTION: A protecting glass unit(20) for a laser optic head comprises a circular protecting glass(21), a circular attaching ring(23), and a magnet pad(25). The circular attaching ring is inserted according to an edge of the protective glass. The attaching ring and the protecting glass are adhered to an adhesion side of an air nozzle by using magnetism.