Patent ID: 7825349
Filing Date: 2010-11-02
Classification: B23K,G02B

Abstract:
1. A laser system for patterning a mold insert, the laser system comprising: a laser source module comprising a laser source for emitting laser beams, a lens module comprising a lens barrel and a first lens assembly which further comprises a first convex lens and a first concave lens positioned coaxially with each other in the lens barrel, with a changeable focal length configured for focusing the laser beams on the surface of the mold insert, a blocking shutter configured for regulating an intensity of the laser beams, and a cooling unit to cool down the temperature of the mold insert; a feedback module, comprising an optical detector and a second lens assembly which further comprises a second concave lens and a second convex lens positioned coaxially with each other, configured for receiving the laser beams reflected from the surface of the mold insert and generating a corresponding feedback signal according to the received laser beams; and a controlling module configured for receiving the feedback signal from the feedback module thereby controlling the laser source according to the feedback signal.