EP 1977860 A1 20081008 - Device and method for manufacturing optical elements
Title (en)
Device and method for manufacturing optical elements
Title (de)
Verfahren und Vorrichtung zum Herstellen von optischen Elementen
Title (fr)
Dispositif et procédé de fabrication d'éléments optiques
Publication
Application
Priority
CH 5412007 A 20070404
Abstract (en)
The method involves providing blanks (20), and processing blanks with abrasive fluid jet (32) for carrying materials of blanks. The fluid jet exhibits a radiation diameter, which is larger than the dimension of the blanks in a plane perpendicular to the direction of the fluid jet. The fluid jet is aligned under two different incident angles on the blanks for processing of the blanks in such a manner that a desired stripping profile is reached. An abrasive material such as cerium oxide and silicon carbide, is attached to the fluid jet. Independent claims are also included for the following: (1) a device for manufacturing optical elements e.g. aspherical mini and micro lenses (2) a computer program product, in which a base cutting profile is stored.
Abstract (de)
In einem Verfahren zum Herstellen von optischen Elementen wird auf einem Rohling (20) mit einem abrasiven Flüssigkeitsstrahl (32) Material abgetragen. Der Flüssigkeitsstrahl (32) weist eine Strahldicke (d) auf, die grösser ist als die Dimension (D) des Rohlings (20) in einer Ebene (E) senkrecht zur Richtung (R) des Flüssigkeitsstrahls. Indem der Flüssigkeitsstrahl (32) unter unterschiedlichen Einfallswinkeln (±) auf den Rohling (20) geführt wird, können vordefinierte Abtragprofile in asphärischer Form erzielt werden.
IPC 8 full level
CPC (source: EP US)
Citation (applicant)
O. W. FÄHNLE/H; VAN BRUG/H.; J. FRANKENA: "Fluid Jet Polishing of optical surfaces", APPLIED OPTICS, vol. 37, no. 28, 1998, pages 6771 - 6773
Citation (search report)
- [Y] WO 0249804 A1 20020627 - QED TECHNOLOGIES INC [US]
- [Y] WO 0112386 A1 20010222 - KONINKL PHILIPS ELECTRONICS NV [NL]
- [A] US 2003060132 A1 20030327 - KUROGOUCHI TOSHIO [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 1977860 A1 20081008; EP 1977860 B1 20101215; AT E491547 T1 20110115; US 2008248729 A1 20081009; US 7987015 B2 20110726
DOCDB simple family (application)
EP 08102962 A 20080327; AT 08102962 T 20080327; US 6207408 A 20080403