EP 0035317 A1 19810909 - Method for the manufacture of lens-like articles.
Title (en)
Method for the manufacture of lens-like articles.
Title (de)
Verfahren zum Herstellen linsenähnlicher Gegenstände.
Title (fr)
Procédé pour la fabrication d'articles en forme de lentille.
Publication
Application
Priority
- JP 2759880 A 19800304
- JP 5925580 A 19800501
- JP 12088180 A 19800828
Abstract (en)
The method comprises carrying out a first machining operation to machine one side of a workpiece (100) into a curved configuration, attaching a machinable piece (101) to the machined surface of the workpiece to form a composite article (100, 101) which facilitates handling and further machining of the workpiece (100), carrying out a second machining operation to machine the other side of the workpiece (100) (and part of the machinable piece 101), and disassembling the machined workpiece (100) from the machinable piece (101). A single holding device (202, 204) is used to hold the workpiece (100) during the first and second machining operations, and the machinable piece (101) is mounted in the holding device (202, 204) after the first machining operation has been carried out, so as to present the other surface of the workpiece (100) for the second machining operation.
IPC 1-7
IPC 8 full level
B24B 13/00 (2006.01)
CPC (source: EP)
B24B 13/00 (2013.01)
Citation (search report)
EP 0023800 A2 19810211 - NAGAURA YOSHIAKI
Designated contracting state (EPC)
CH DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 81300173 A 19810115; CA 369293 A 19810126