公开(公告)号：JP2006323361A

公开(公告)日：2006-11-30

申请号：JP2006078305

申请日：2006-03-22

Applicant: 3 D SYSTEMS INC

Inventor： KEREKES THOMAS A ,  PARTANEN JOUNI P

IPC: G02B26/10 ,  B23K26/00 ,  B23K26/08

Abstract: PROBLEM TO BE SOLVED: To keep exposure constant along a vector in a method for vector-scanning a laser beam. SOLUTION: A laser beam from a laser light source is oriented to a scanner which is provided with a first mirror 146 connected to a first rotary motive device 148 for positioning the first mirror and a second mirror 147 connected to a second rotary motive device 149 for positioning the second mirror 147. The laser beam is oriented from the first mirror to the second mirror, and then to a working face. By providing commanded-position signals to each of the first and the second rotary motive devices to rotate respective mirrors, the laser beam is scanned along the vector, each mirror undergoing acceleration at the beginning and the end of the vector, wherein the commanded-position signals are calculated based on physical mathematical modeling of the acceleration of the mirrors taking into account effects of inertia of the scanning system. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2003181941A

公开(公告)日：2003-07-03

申请号：JP2002345125

申请日：2002-11-28

Applicant: 3 D SYSTEMS INC

Inventor： LEYDEN RICHARD N ,  THAYER JEFFREY S ,  BEDAL BRYAN J L ,  ALMQUIST THOMAS A ,  CHARLES W HULL ,  EARL JOCELYN M ,  KEREKES THOMAS A ,  DENNIS R SMALLEY ,  MEROT CHRISTIAN M ,  FEDCHENKO RICHARD P ,  LOCKARD MICHAEL S ,  PANG THOMAS H ,  THAT DINH TON

IPC: B22F3/00 ,  B29C35/08 ,  B29C41/12 ,  B29C41/36 ,  B29C67/00 ,  B29K63/00 ,  G06T17/00

Abstract: PROBLEM TO BE SOLVED: To accurately and rapidly form a support structure together with a three-dimensional article in an apparatus for manufacturing the three- dimensional article by laminating a fluidized material having a higher curing temperature than an ambient temperature on each layer for constituting a section of the three-dimensional article. SOLUTION: A high-speed trially forming apparatus of the three-dimensional article with the support structure supplies the fluidized material having the higher curing temperature than the ambient temperature to be discharged from a print head 9 to each layer for constituting the three-dimensional article on a material supply base 18, and accurately decides a thickness of the layer by a smoothing member 11 having a rotary cylinder 18a. The layer for constituting the section is formed of data of the three-dimensional article and data of the support structure, and the article and the structure are simultaneously laminated in a vertical direction at the same speed. COPYRIGHT: (C)2003,JPO