公开(公告)号：DE60221280D1

公开(公告)日：2007-08-30

申请号：DE60221280

申请日：2002-12-17

Applicant: ESSILOR INT

Inventor： CHIU HAO-WEN ,  YANG HSINJIN ,  LOCKWOOD MATTHEW

IPC: B29C51/30 ,  B29D11/00 ,  B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29C51/08 ,  B29C51/12 ,  B29C51/14 ,  B29C51/32 ,  B29C51/42 ,  B29L11/00

Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.

公开(公告)号：AT367260T

公开(公告)日：2007-08-15

申请号：AT02804933

申请日：2002-12-17

Applicant: ESSILOR INT

Inventor： CHIU HAO-WEN ,  YANG HSINJIN ,  LOCKWOOD MATTHEW

IPC: B29C51/30 ,  B29D11/00 ,  B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29C51/08 ,  B29C51/12 ,  B29C51/14 ,  B29C51/32 ,  B29C51/42 ,  B29L11/00

Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.

公开(公告)号：AU2002364997A1

公开(公告)日：2003-06-30

申请号：AU2002364997

申请日：2002-12-17

Applicant: ESSILOR INT

Inventor： CHIU HAO-WEN ,  YANG HSINJIN ,  LOCKWOOD MATTHEW

IPC: B29C51/30 ,  B29C43/02 ,  B29C43/36 ,  B29C43/52 ,  B29C51/08 ,  B29C51/12 ,  B29C51/14 ,  B29C51/32 ,  B29C51/42 ,  B29D11/00 ,  B29L11/00

Abstract: The mold comprises two dies mounted in a sheath to slide along the axis of the sheath and each presenting a forming face facing the other. The two dies and the sheath are provided with intrinsic heat transfer means. A parison or preform of said thermoplastic material is placed between the two dies and the assembly is enclosed in the sheath; the dies and the sheath are heated by their intrinsic heat transfer means up to a forming temperature; The dies are moved towards each other to shape the material by plastic deformation until a predetermined relative position is reached corresponding to the thickness desired for the lens; the dies and the sheath are cooled by their intrinsic heat transfer means down to an unmolding temperature; and the finished lens is extracted from the mold.