公开(公告)号：EP0738241A1

公开(公告)日：1996-10-23

申请号：EP94912438.0

申请日：1994-03-30

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

发明人： DÖLL, Walter ,  BEINERT, Joachim ,  ROTH, Marcus ,  SCHINKER, Martin, G. ,  KOLLOFF, Rainer ,  SPIESS, Gerd ,  STAHN, Dieter

IPC分类号： C03B33

CPC分类号： C03B33/0955

摘要： In a process for cutting hollow glassware, especially hollow glassware (3) with a rounded cross-section, an upper (36) and a lower (37) stress region on either side of an intended cut are produced thermally in the glass at a temperature slightly below its softening temperature by two laser beams (33, 34) substantially symmetrically to the intended cut. A crack inducing point (13) brought briefly into contact with the glass surface between the stress regions (36, 37) is used to make an initial crack on a section of the cut line which extends to form a high-grade cut around the entire circumference, thus obviating the need for subsequent grinding of the separation surface. The initial crack may also be made by focussing the laser beams (39, 40) in the area be tween the stress regions (35, 36). It is also possible to use only one laser beam to produce a single stress region, and in this case the initial crack is made substantially in the middle of the single stress region.

公开(公告)号：EP1727772B1

公开(公告)日：2011-02-23

申请号：EP05715091.4

申请日：2005-03-18

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Grenzebach Maschinenbau GmbH

发明人： DÖLL, Walter ,  KOLLOFF, Rainer ,  KORDISCH, Horst ,  KÜBLER, Rainer ,  SPIESS, Gerd ,  FRIEDL, Wolfgang ,  GLASER, Siegfried ,  PÖHLER, Manfred

IPC分类号： C03B33/09

CPC分类号： C03B33/091 ,  B23K26/40 ,  B23K2203/50 ,  Y10T225/12

公开(公告)号：EP1307604B1

公开(公告)日：2004-05-06

申请号：EP01960643.3

申请日：2001-08-09

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： BURMEISTER, Frank ,  DÖLL, Walter ,  KLEER, Günter

IPC分类号： C23C14/04 ,  C03C17/25 ,  C03C19/00 ,  C03B11/08

CPC分类号： C03C17/25 ,  C03B11/082 ,  C03B2215/412 ,  C03C2217/77 ,  C23C14/042

摘要： The invention relates to a method for producing a tool, and a tool which can be used to create optically active surface structures in the sub-νm range. Said tool comprises a support surface to which surface structures are applied by depositing material, said surface structures being raised in relation to the support surface. The invention is characterised in that the support surface is indirectly bonded with a mask (2) in which openings (3) having diameters in the sub-νm range are provided or can be placed; the support surface and the mask are subjected to a coating process during which coating material is deposited onto the support surface via the openings (3) in the mask; the mask is removed from the support surface when a partial amount of the average height of the end structure pertaining to the surface structures is obtained; and the coating process is continued without a mask and with similar or different coating material.

公开(公告)号：EP1009903B1

公开(公告)日：2002-10-23

申请号：EP98951334.6

申请日：1998-08-31

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

发明人： DÖLL, Walter ,  KÖNCZÖL, Laszlo ,  GOMBERT, Andreas

IPC分类号： E06B9/24

CPC分类号： E06B9/24 ,  F21S11/007

摘要： The invention relates to a method and element for illuminating areas by targeted guidance of daylight, comprising an optically transparent base body through which the light shines into said area and in which a plurality of structures are provided, through which light is deviated into said area by means of total reflection. The invention is characterized in that the plurality of structures consist of at least approximately parallel slits or centres of deformation.

公开(公告)号：EP0738241B1

公开(公告)日：1998-08-26

申请号：EP94912438.2

申请日：1994-03-30

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

发明人： DÖLL, Walter ,  BEINERT, Joachim ,  ROTH, Marcus ,  SCHINKER, Martin, G. ,  KOLLOFF, Rainer ,  SPIESS, Gerd ,  STAHN, Dieter

IPC分类号： C03B33/095

CPC分类号： C03B33/0955

摘要： In a process for cutting hollow glassware, especially hollow glassware (3) with a rounded cross-section, an upper (36) and a lower (37) stress region on either side of an intended cut are produced thermally in the glass at a temperature slightly below its softening temperature by two laser beams (33, 34) substantially symmetrically to the intended cut. A crack inducing point (13) brought briefly into contact with the glass surface between the stress regions (36, 37) is used to make an initial crack on a section of the cut line which extends to form a high-grade cut around the entire circumference, thus obviating the need for subsequent grinding of the separation surface. The initial crack may also be made by focussing the laser beams (39, 40) in the area be tween the stress regions (35, 36). It is also possible to use only one laser beam to produce a single stress region, and in this case the initial crack is made substantially in the middle of the single stress region.