公开(公告)号：DE69524080T2

公开(公告)日：2002-08-29

申请号：DE69524080

申请日：1995-04-25

Applicant: 3D SYSTEMS INC

Inventor： GIGL J ,  PANG H ,  SMALLEY R ,  ALLEN J ,  VORGITCH J ,  MANNERS R ,  EARL M ,  BEDAL J ,  JACOBS F ,  NGUYEN D ,  LEYDEN N ,  HULL W ,  VANDORIN L

IPC: B29C35/08 ,  B29C67/00 ,  G06F17/50 ,  G06T17/00

公开(公告)号：DE69806476D1

公开(公告)日：2002-08-14

申请号：DE69806476

申请日：1998-04-22

Applicant: 3D SYSTEMS INC

Inventor： PARTANEN P ,  SMALLEY R

IPC: B29C35/08 ,  B29C67/00

Abstract: Methods and apparatus for forming three-dimensional objects from a medium solidifiable when subjected to a beam of pulsed radiation wherein the pulses of radiation are made to occur when the beam is directed to desired pulsing locations on a target surface of the medium. Preferred embodiments of the instant invention include a pulsed laser assembly, including a laser and a pulse generation circuit, a control computer, a plurality of mirrors and mirror encoders. The computer controls the movement of the mirrors which guide the laser beam across the surface of the solidifiable medium. The pulsing of the laser beam is correlated to the position of the mirrors and thus, is not dependent upon time. Pulsing linked to position of beam placement allows controlled and repeatable use of a pulsed beam for the formation of objects.