US 12,245,931 B2
Achromatic lenses with zone order mixing for vision treatment
Robert Rosen, Groningen (NL); and Franck Gounou, Groningen (NL)
Assigned to AMO Groningen B.V., Groningen (NL)
Filed by AMO Groningen B.V., Groningen (NL)
Filed on Dec. 15, 2023, as Appl. No. 18/542,499.
Application 18/542,499 is a continuation of application No. 17/103,935, filed on Nov. 24, 2020, granted, now 11,844,688.
Claims priority of provisional application 62/955,346, filed on Dec. 30, 2019.
Prior Publication US 2024/0189095 A1, Jun. 13, 2024
Int. Cl. A61F 2/16 (2006.01)
CPC A61F 2/1654 (2013.01) [A61F 2/1618 (2013.01); A61F 2/1621 (2013.01); A61F 2/1656 (2013.01); A61F 2240/001 (2013.01); A61F 2240/002 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method comprising:
receiving an intraocular lens prescription; and
fabricating an optic for an intraocular lens, based on the intraocular lens prescription,
wherein the optic comprises a diffractive achromat configured to direct light to a common focus, with individual zones of the diffractive achromat directing light to the common focus in at least two different diffractive orders utilizing at least two different diffractive powers,
wherein the individual zones of the diffractive achromat comprise a plurality of echelettes comprising a first echelette of the plurality of echelettes having a first width in r-squared space, and second echelette of the plurality of echelettes having a second width in r-squared space that is different than the first width in r-squared space.