Patent ID: 6103990
Filing Date: 2000-08-15
Classification: B23K,G11B

Abstract:
Apparatus for forming textured spots in a surface moving in a first direction, wherein said apparatus comprises:a laser producing a continuous laser beam;a modulator deflecting said continuous laser beam into a deflected beam path, wherein said laser beam is deflected by said modulator into said deflected beam path with lateral movement in a second direction, wherein said laser beam is moved out of said deflected beam path by said modulator with lateral movement in said second direction, wherein said modulator includes a multi-faceted rotating mirror wheel, and an aperture plate including a hole through which a reflection of said continuous laser beam is driven by rotation of said mirror wheel, wherein said lateral movement in said second direction is caused by movement of said laser beam into and out of said hole; andoptical projection means extending between said modulator and a stationary point at said surface moving in a first direction, wherein said optical projection means projects said laser beam on said surface moving in a first direction so that said lateral movement in a second direction is projected as lateral movement in said first direction.