Patent · US Active

Artificial eye lens with laser-generated birefringent structure and method for producing an artificial eye lens

US11583391B2 · kind B2 · utility

0Cited by

19References

5Claims

0Family size

Assignee

Carl Zeiss Meditec AG · DE

Inventors

Michael Kaschke · Oberkochen, DE
Manfred Dick · Gefell, DE
Mario Gerlach · Hohen Neuendorf, DE

Key dates

Filing date	May 17, 2018
Grant date	Feb 21, 2023
Priority date	—
Expiry date	Jul 14, 2038

Classification

Technology area (CPC G)Physics
CPC primaryG02C7/022
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An artificial eye lens having an integral optical part which has, viewed in the direction of an optical principal axis of the eye lens, a first optical side and an opposite, second optical side. The optical part is formed with a structure having birefringence, where the birefringent structure in the integral optical part is formed as a laser structure. A method for producing an artificial eye lens, where the birefringent structure is produced with a laser apparatus, and a pulsed laser beam having a pulse length of between 100 fs and 20 ps, a wavelength of between 320 nm and 1100 nm, a pulse repetition rate of between 1 kHz and 10 MHz, a focus diameter of less than 5 μm, and a power density of greater than 106 W/cm2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.