公开(公告)号：EP1986967B1

公开(公告)日：2013-04-17

申请号：EP07711172.2

申请日：2007-02-12

申请人： DOCTER OPTICS GMBH

发明人： MÜHLE, Peter ,  WINTZER, Wolfram

IPC分类号： C03B11/08 ,  C03B19/02

CPC分类号： C03B11/08 ,  C03B11/12 ,  C03B19/025 ,  C03B2215/71

公开(公告)号：EP1986967A1

公开(公告)日：2008-11-05

申请号：EP07711172.2

申请日：2007-02-12

申请人： DOCTER OPTICS GMBH

发明人： MÜHLE, Peter ,  WINTZER, Wolfram

IPC分类号： C03B11/08 ,  C03B19/02

CPC分类号： C03B11/08 ,  C03B11/12 ,  C03B19/025 ,  C03B2215/71

摘要： The invention relates to a method and a device for producing a technical glass part with high requirements in terms of definition and surface finish, in particular a precision lens. In said method, a blank (41) with a moulded-on sprue (42, 43, 44) is produced by means of an injection pressing process, wherein the blank (41) is cooled and subsequently heated, and wherein the blank (41) is subsequently blank-pressed, in particular on both sides, to form a technical glass part with high requirements in terms of definition and surface finish, in particular a precision lens. The invention also relates to a method, wherein a blank is cooled and subsequently heated in such a way that the temperature gradient of said blank is reversed.