公开(公告)号：EP2451630B1

公开(公告)日：2016-03-30

申请号：EP10734606.6

申请日：2010-07-02

申请人： 3D Systems, Inc.

发明人： HICKERSON, Kevin ,  WRIGHT, Jay ,  AHSAN, Omar

IPC分类号： G02B19/00 ,  B29C67/00

CPC分类号： G02B19/0014 ,  B29C64/153 ,  G02B19/0028 ,  G02B19/0047 ,  G02B19/009

公开(公告)号：EP2451630A2

公开(公告)日：2012-05-16

申请号：EP10734606.6

申请日：2010-07-02

申请人： 3D Systems, Inc.

发明人： HICKERSON, Kevin ,  WRIGHT, Jay ,  AHSAN, Omar

IPC分类号： B29C67/00

CPC分类号： G02B19/0014 ,  B29C64/153 ,  G02B19/0028 ,  G02B19/0047 ,  G02B19/009

摘要： A imaging assembly (300) for generating a light beam suitable for sintering comprises a lamp housing (350) and a lamp (304) mounted in the lamp housing (350) comprising a filament (306) and a lamp base (308), wherein the lamp (304) is oriented with the lamp base (308) to the side of the filament (306). The imaging assembly (300) further comprises a reflector (302), an aperture (318), and at least one condenser lens (314, 316) configured to focus light emitted by the filament (306) through the aperture (318). The imaging assembly (300) further comprises a set of achromatic doublet lenses (324, 326), each achromatic doublet lens (324, 326) comprising three surfaces optimized to focus light at three wavelengths, wherein the set of achromatic doublet lenses (324, 326) focuses light over a range including the three wavelengths. The imaging assembly (300) further comprises an outer lens (332), wherein the focused light beam exits the imaging assembly (300) through the outer lens (332).