公开(公告)号：PL1656248T3

公开(公告)日：2011-12-30

申请号：PL04769153

申请日：2004-08-20

Applicant: ESSILOR INT

Inventor： MANDLER ROLAND ,  DANHARDT WALTER ,  RIALL DAN ,  SILVA MARC

IPC: B24B13/005 ,  B29D11/00 ,  G02C7/02

公开(公告)号：MY143436A

公开(公告)日：2011-05-13

申请号：MYPI20053571

申请日：2005-08-01

Applicant: ESSILOR INT

Inventor： RIALL JAMES DANIEL ,  DANNHARDT WALTER ,  MANDLER ROLAND ,  MULLER TOBIAS

IPC: B23C3/16

Abstract: [0050] A RASTER CUTTING APPARATUS AND METHOD FOR PRODUCING ACCURATELY FORMED, ASPHERIC OPHTHALMIC LENSES HAVING A GOOD QUALITY SURFACE FINISH. THE ACCURATE FORM AND GOOD SURFACE FINISH ARE OBTAINED BY USING A SUBSTANTIALLY SPHERICALLY SHAPED CUTTING TOOL HAVING A LARGE RADIUS. THE METHODS INCLUDE UTILIZING A CUTTING PATH WHICH PROVIDES SUBSTANTIALLY CONSTANT CUTTING-FORCE, SUCH AS A CONSTANT SURFACE-CUTTING-SPEED RASTER PATTERN.

公开(公告)号：AT449656T

公开(公告)日：2009-12-15

申请号：AT05782713

申请日：2005-08-03

Applicant: ESSILOR INT

Inventor： RIALL JAMES ,  DANNHARDT WALTER ,  MANDLER ROLAND ,  MULLER TOBIAS

IPC: B23C3/16 ,  B23Q15/00 ,  B24B13/06 ,  G05B19/18

Abstract: A raster cutting apparatus and method for producing accurately formed, aspheric ophthalmic lenses having a good quality surface finish. The accurate form and good surface finish are obtained by using a substantially spherically shaped cutting tool having a large radius. The methods include utilizing a cutting path which provides substantially constant cutting-force, such as a constant surface-cutting-speed raster pattern.

公开(公告)号：CA2535957A1

公开(公告)日：2005-03-03

申请号：CA2535957

申请日：2004-08-20

Applicant: ESSILOR INT

Inventor： DANNHARDT WALTER ,  MANDLER ROLAND ,  SILVA MARC ,  RIALL DAN

IPC: B29D11/00 ,  B24B13/005 ,  G02C7/02

Abstract: For manufacturing ophthalmic lenses and other optical form bodies made of plastic material, plastic form parts are used which are made by non-cutting shaping and are then further worked by mechanical production steps. Said plastic form parts are circular blanks (1) made of two different plastic materials which are firmly joined to each other. Thereby, an interior lens element (2) that consists of a high-quality material is concentrically surrounded by a ring fixture (3) which consists of a low priced material. Either surface of the lens element (2) may feature any given geometry. Durin g mechanical working, the ring fixture (3) is used for mounting as well as for depositing and, in addition, for stabilizing the workpiece (9). For this reason it is partially maintained throughout the mechanical working and is c ut off at the end only.

公开(公告)号：PL1773528T3

公开(公告)日：2010-05-31

申请号：PL05782713

申请日：2005-08-03

Applicant: ESSILOR INT

Inventor： RIALL JAMES DANIEL ,  DANNHARDT WALTER ,  MANDLER ROLAND ,  MULLER TOBIAS

IPC: B23C3/16 ,  B23Q15/00 ,  B24B13/06 ,  G05B19/18

公开(公告)号：AU2005271466A1

公开(公告)日：2006-02-16

申请号：AU2005271466

申请日：2005-08-03

Applicant: ESSILOR INT

Inventor： DANNHARDT WALTER ,  RIALL JAMES DANIEL ,  MANDLER ROLAND ,  MULLER TOBIAS

IPC: B23C3/16 ,  B23Q15/00 ,  B24B13/06 ,  G05B19/18

Abstract: A raster cutting apparatus and method for producing accurately formed, aspheric ophthalmic lenses having a good quality surface finish. The accurate form and good surface finish are obtained by using a substantially spherically shaped cutting tool having a large radius. The methods include utilizing a cutting path which provides substantially constant cutting-force, such as a constant surface-cutting-speed raster pattern.