Limited echellette lens, systems and methods

• US 10,288,901 B2
• Filed: 01/25/2017
• Issued: 05/14/2019
• Est. Priority Date: 05/13/2008
• Status: Active Grant

• Current Assignee: Amo Groningen B.V (Johnson & Johnson)
• Original Assignee: Amo Groningen B.V (Johnson & Johnson)
• Inventors: Weeber, Hendrik A.
• Primary Examiner(s): Collins, Darryl J
• Application Number:
  US15/415,736
• Publication Number:
  US 20170131565A1
• Time in Patent Office: 839 Days
• Field of Search: 35115901, 35115902, 35115911-15913, 35115915, 35115926, 35115935, 35115944
• CPC Class Codes: A61B 2034/104 Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2/1618 Multifocal lenses
• CPC Class Codes: A61F 2/1637 Correcting aberrations caused by inhomogeneities; correcting intrinsic aberrations, e.g. of the cornea, of the surface of the natural lens, aspheric, cylindrical, toric lenses
• CPC Class Codes: A61F 2/164 Aspheric lenses
• CPC Class Codes: A61F 2/1645 Toric lenses
• CPC Class Codes: A61F 2/1654 Diffractive lenses
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: G02B 27/0075 with means for altering, e.g. increasing, the depth of field or depth of focus
• CPC Class Codes: G02C 2202/20 Diffractive and Fresnel lenses or lens portions
• CPC Class Codes: G02C 7/022 Ophthalmic lenses having special refractive features achieved by special materials or material structures G02C7/049 takes precedence
• CPC Class Codes: G02C 7/027 considering wearer's parameters
• CPC Class Codes: G02C 7/041 bifocal; multifocal
• CPC Class Codes: G02C 7/044 Annular configuration, e.g. pupil tuned
• CPC Class Codes: G02C 7/049 Contact lenses having special fitting or structural features achieved by special materials or material structures
• CPC Class Codes: G02C 7/06 bifocal; multifocal ; progressive G02C7/041 takes precedence
• CPC Class Codes: G02C 7/061 Spectacle lenses with progressively varying focal power

Abstract

An ophthalmic lens with a circular surface structure and limited adjacent echelettes that provides enhanced image quality across an extended range of foci.

Claims

1. An ophthalmic lens, comprising:

an anterior face and a posterior face, the faces disposed about an optical axis; and

at least one diffractive profile imposed on the anterior face or the posterior face, the at least one diffractive profile consisting of an inner echelette and 1 or 2 peripheral echelettes,

wherein the inner echelette and the 1 or 2 peripheral echelettes have respective sizes determined by a plural set of measured pupil dynamics;

wherein the plural set of measured pupil dynamics is measured in a plurality of light levels.

2. The ophthalmic lens of claim 1, wherein at least 2 echelettes are not adjacent to each other.

3. The ophthalmic lens of claim 2, wherein the at least 2 echelettes that are not adjacent to each other are separated by a refractive region.

4. The ophthalmic lens of claim 2, wherein the at least 2 echelettes are not separated by a refractive region.

5. The ophthalmic lens of claim 1, wherein the inner echelette and the peripheral echelette(s) are not separated by a refractive region.

6. The ophthalmic lens of claim 1, wherein the echelettes further comprise of transitions characterized by a step height having a value within a range from about 0.5 μ

m and about 4 μ

m.

7. The ophthalmic lens of claim 6, wherein the step height for at least 2 echelettes differ.

8. The ophthalmic lens of claim 6, wherein the surface area for at least 2 echelettes differ.

9. The ophthalmic lens of claim 1, wherein the inner echelette and the peripheral echelettes are characterized by a constant phase shift.

10. The ophthalmic lens of claim 1 further comprising an outer echelette, wherein the inner and outer echelettes have varying step heights.

11. The ophthalmic lens of claim 1, wherein the set of measured pupil dynamics is based on a group of patients.

12. An ophthalmic lens, comprising:

an anterior face and a posterior face, the faces disposed about an optical axis; and

at least one diffractive profile imposed on the anterior face or the posterior face, the at least one diffractive profile consisting of an inner echelette and 1 or 2 peripheral echelettes, wherein the inner echelette and the 1 or 2 peripheral echelettes have respective sizes determined by a plural set of measured pupil dynamics;

wherein the set of measured pupil dynamics is measured in a plurality of accommodative efforts.

14. The ophthalmic lens of claim 12, wherein at least 2 echelettes are not adjacent to each other.

15. The ophthalmic lens of claim 14, wherein the at least 2 echelettes that are not adjacent to each other are separated by a refractive region.

16. The ophthalmic lens of claim 14, wherein the at least 2 echelettes are not separated by a refractive region.

17. The ophthalmic lens of claim 12, wherein the inner echelette and the peripheral echelette(s) are not separated by a refractive region.

18. The ophthalmic lens of claim 12, wherein the echelettes further comprise of transitions characterized by a step height having a value within a range from about 0.5 μ

m and about 4 μ

m.

19. The ophthalmic lens of claim 18, wherein the step height for at least 2 echelettes differ.

20. The ophthalmic lens of claim 18, wherein the surface area for at least 2 echelettes differ.

21. The ophthalmic lens of claim 12, wherein the inner echelette and the peripheral echelettes are characterized by a constant phase shift.

22. The ophthalmic lens of claim 12 further comprising an outer echelette, wherein the inner and outer echelettes have varying step heights.

23. The ophthalmic lens of claim 12, wherein the set of measured pupil dynamics is based on a group of patients.

13. An ophthalmic lens, comprising:

an anterior face and a posterior face, the faces disposed about an optical axis; and

at least one diffractive profile imposed on the anterior face or the posterior face, the at least one diffractive profile consisting of an inner echelette and 1 or 2 peripheral echelettes, wherein the inner echelette and the 1 or 2 peripheral echelettes have respective sizes has a size determined by a plural set of measured pupil dynamics;

wherein the set of measured pupil dynamics is measured in bright light, in dim light, during far vision, during near vision, and in a plurality of different combinations of the light levels and the accommodative efforts.

24. The ophthalmic lens of claim 13, wherein at least 2 echelettes are not adjacent to each other.

25. The ophthalmic lens of claim 24, wherein the at least 2 echelettes that are not adjacent to each other are separated by a refractive region.

26. The ophthalmic lens of claim 24, wherein the at least 2 echelettes are not separated by a refractive region.

27. The ophthalmic lens of claim 13, wherein the inner echelette and the peripheral echelette(s) are not separated by a refractive region.

28. The ophthalmic lens of claim 13, wherein the echelettes further comprise of transitions characterized by a step height having a value within a range from about 0.5 μ

m and about 4 μ

m.

29. The ophthalmic lens of claim 28, wherein the step height for at least 2 echelettes differ.

30. The ophthalmic lens of claim 28, wherein the surface area for at least 2 echelettes differ.

31. The ophthalmic lens of claim 13, wherein the inner echelette and the peripheral echelettes are characterized by a constant phase shift.

32. The ophthalmic lens of claim 13 further comprising an outer echelette, wherein the inner and outer echelettes have varying step heights.

33. The ophthalmic lens of claim 13, wherein the set of measured pupil dynamics is based on a group of patients.