US 11,931,244 B2
Diffractive artificial ophthalmic lens with optimised apodization and method for the production of such artificial ophthalmic lens
Laszlo Ferenc Kontur, Budapest (HU); Bence Papdi, Szeged (HU); Peter Koncsar, Budapest (HU); Daniel Bercsenyi, Erd (HU); Balazs Fekete, Gyal (HU); and Gabor Erdei, Budapest (HU)
Assigned to MEDICONTUR ORVOSTECHNIKAI KFT., Zsambek (HU)
Appl. No. 16/958,306
Filed by MEDICONTUR ORVOSTECHNIKAI KFT., Zsambek (HU)
PCT Filed Dec. 28, 2018, PCT No. PCT/HU2018/050053
§ 371(c)(1), (2) Date Jun. 26, 2020,
PCT Pub. No. WO2019/130030, PCT Pub. Date Jul. 4, 2019.
Claims priority of application No. P1700547 (HU), filed on Dec. 28, 2017.
Prior Publication US 2021/0059812 A1, Mar. 4, 2021
Int. Cl. A61F 2/16 (2006.01)
CPC A61F 2/1654 (2013.01) [A61F 2240/001 (2013.01)] 10 Claims
OG exemplary drawing
 
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.