EP 0782420 A1 19970709 - DEVICE FOR SHAPING THE CORNEA
Title (en)
DEVICE FOR SHAPING THE CORNEA
Title (de)
VORRICHTUNG ZUR FORMUNG DER CORNEA
Title (fr)
DISPOSITIF DE FA ONNAGE DE LA CORNEE
Publication
Application
Priority
- DE 9501629 W 19951122
- DE 4441579 A 19941122
- DE 19530476 A 19950818
Abstract (en)
[origin: WO9615742A1] The description relates to a device for shaping the cornea with a laser, the beam of which has a circular mode distribution and a beam shaping and guiding device which directs the laser beam to the cornea. In the invention, to make the energy density uniform over the radiation cross-section, the beam shaping device has a focussing lens to focus the broadened laser beam, a diffracting component which is arranged at a short distance from the focal plane of the focussing lens and the maximum diffractions of which interfere with the minima of the mode distribution, and an image field diaphragm arranged at a point optically conjugated with the cornea.
IPC 1-7
IPC 8 full level
A61F 9/007 (2006.01); A61F 9/01 (2006.01); G02B 27/09 (2006.01)
CPC (source: EP US)
A61F 9/00814 (2013.01 - EP US); A61F 9/00817 (2013.01 - EP US); G02B 27/09 (2013.01 - EP US); G02B 27/0927 (2013.01 - EP US); G02B 27/0944 (2013.01 - EP US); A61F 2009/00872 (2013.01 - EP US)
Citation (search report)
See references of WO 9615742A1
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
WO 9615742 A1 19960530; EP 0782420 A1 19970709; JP H09508306 A 19970826; US 5895384 A 19990420
DOCDB simple family (application)
DE 9501629 W 19951122; EP 95936949 A 19951122; JP 51644996 A 19951122; US 67634096 A 19961007