Patent ID: 11931244
Assignee: MEDICONTUR ORVOSTECHNIKAI KFT.
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A multifocal artificial ophthalmic lens that contains an anterior optical surface and a posterior optical surface, where the anterior optical surface and the posterior optical surface have a common optical axis and at least one of the anterior optical surface and the posterior optical surface is a multifocal optics comprising a multifocal optical diffractive profile that shifts continuously from trifocal performance to bifocal performance with an increase of a diameter of an aperture, wherein a cross apodized profile part is formed on the diffractive profile, and five to twenty phase shifting elements are provided next to each other on the diffractive profile that alternately form the elements of a decreasingly apodized series and an increasingly (reversed) apodized series in such a way that the decreasing and increasing elements of the two series define envelope curves that meet at a common intersection point.