WO2004113959B1 - Bifocal multiorder diffractive lenses for vision correction - Google Patents

Bifocal multiorder diffractive lenses for vision correction

Info

Publication number
WO2004113959B1
WO2004113959B1 PCT/US2004/019009 US2004019009W WO2004113959B1 WO 2004113959 B1 WO2004113959 B1 WO 2004113959B1 US 2004019009 W US2004019009 W US 2004019009W WO 2004113959 B1 WO2004113959 B1 WO 2004113959B1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
diffractive
multiorder
lens according
optical element
Prior art date
Application number
PCT/US2004/019009
Other languages
French (fr)
Other versions
WO2004113959A3 (en
WO2004113959A2 (en
Inventor
G Michael Morris
Dale A Buralli
Richard J Federico
Original Assignee
Apollo Optical Systems Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Apollo Optical Systems Llc filed Critical Apollo Optical Systems Llc
Priority to AU2004250644A priority Critical patent/AU2004250644C1/en
Priority to JP2006517283A priority patent/JP2006527867A/en
Priority to NZ544127A priority patent/NZ544127A/en
Priority to CA002529383A priority patent/CA2529383A1/en
Priority to EP04755286A priority patent/EP1634115A4/en
Publication of WO2004113959A2 publication Critical patent/WO2004113959A2/en
Publication of WO2004113959A3 publication Critical patent/WO2004113959A3/en
Publication of WO2004113959B1 publication Critical patent/WO2004113959B1/en
Priority to IL172320A priority patent/IL172320A0/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/044—Annular configuration, e.g. pupil tuned
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/041—Contact lenses for the eyes bifocal; multifocal
    • G02C7/042—Simultaneous type
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses 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
    • A61F2/1616—Pseudo-accommodative, e.g. multifocal or enabling monovision
    • A61F2/1618—Multifocal lenses
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
    • A61F2/16—Intraocular lenses
    • A61F2/1613—Intraocular lenses 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
    • A61F2/1654—Diffractive lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/20—Diffractive and Fresnel lenses or lens portions

Abstract

A bifocal multiorder diffractive lens (10) is provided having a lens body (11) with one or more first regions (14) having a first multiorder diffractive structure providing near vision correction, and one or more second regions (16) having a second multiorder diffractive structure providing distance vision correction, in which the lens (10) defines an aperture divided between the first and second regions (14, 16).

Claims

22
AMENDED CLAIMS received by the International Bureau on 06 April 2005 (06.04.2005) original claims 1-49, replaced by amended claims 1-62
1. A bifocal multiorder diffractive lens comprising: a lens body defining an aperture of the lens; at least one first region on said lens body having a multiorder diffractive structure providing near vision, correction; and one or more second regions on said body having a multiorder diffractive structure providing distance vision correction, in which said aperture of the lens is divided between said first and second regions.
2. The lens according to Claim 1 wherein said multiorder diffractive structure of said first region directs a plurality of different wavelengths to a single focus for near vision correction, and said second regions directs a plurality of different wavelengths to a single focus tor distance vision correction.
3. The lens according to Claim 2 wherein each multiorder diffractive structure of said first and second regions are characterized by a plurality of zones which define zone boundaries at which light incident on the diffractive structure experiences an optical phase shift, and which diffract light of each of said wavelengths in a different diffractive order, m, such that rn ≥ 1 , to the focus for the diffractive structure,
4. The lens according to Claim 1 wherein said lens body has a first surface and a second surface, and said first and second regions are located upon One of said first surface and said second surface.
5. The lens according to Claim 1 wherein said lens body has a first surface and a second surface, and said first region is ro i ed upon said first surface and the second regions arc provided on the second surface.
6. The lens according to Claim 1 wherein said first region comprises a plurality of first annular regions of the multiorder diffractive structure providing near vision correction, and said second regions comprises a central region and a plurality of annular regions of the multiorder diffractive structure providing distance vision correction alternating with said first annular regions towards the edge of said lens.
7. The lens according to Claim 1 wherein said first region is provided by at least one annular ring of the multiorder diffractive structure providing near vision correction, and said second region is provided by the portion of the aperture of the lens not part of said first region,
8. The lens according to Claim 1 wherein said lens body has a first surface and a second surface and first region extends substantially along the one half of said first surface, and said second region extends along a portion of the first surface not part of said first region.
9. The lens according to Claim 1 wherein said lens body has a first and second surface and said first region extends substantially along one half of said first surface, and said second region extends along said second surface.
10. The lens according to Claim 1 wherein said lens body is composed of a single optical element.
11. The lens according to Claim 1 wherein said lens body is composed of a plurality of optical elements.
12. The lens according to Claim 11 wherein said lens body has front and back surfaces and one or more intermediate surfaces between said front and back surfaces depending on the number of optical elements, and said first and second regions are provided along the same intermediate surface to divide the aperture of the lens.
13. The lens according to Claim 11 wherein said lens body has front and back surfaces and one or more intermediate surfaces between said front and back surfaces depending on the number of optical elements, and said first and second regions are provided along different intermediate surfaces to divide the aperture of the lens.
14. The lens according to Claim 1 1 wherein adjacent ones of said plurality of optical elements represent a first adjacent optical element having a back surface and a second adjacent optical element having a front surface facing said back surface, and said first and 24
second diffractive structures are provided on one of said back and front surfaces or on different ones of said back Surface and front surface to divide the lens aperture.
15. The lens according to Claim 14 wherein said front and back surfaces are separated by one of air or a liquid.
16. The lens according to Claim 14 wherein said front and back surfaces mate with each other.
17. The lens according to Claim 1 wherein said lens body has one or more surfaces providing retractive power for near or distance vision correction.
18. The lens according to Claim 11 wherein said plurality of optical elements number two or three.
1 . The lens according to Claim 1 wherein said lens is part of an intraocular implant.
20. The lens according to Claim 1 wherein said lens represents a contact lens.
21. The lens according to Claim 1 wherein said lens represents a spectacle lens.
22. The lens according to Claim 1 wherein said multiorder diffractive structures of one or both of said first and second regions aie optimized for photopic and scotopic vision.
23. The lens according to Claim 1 wherein said multiorder diffractive structures of one or both of said first and second regions correct for astigmatism.
24. A bifocal multiorder diffractive lens comprising: a lens body shaped to refract light to provide distance vision correction, and at leasl one multiorder diffractive structure for adding power to said lens for near vision correction.
25. The lens according to Claim 24 wherein said lens body has a front and back surface and said lens body is provided by two or more optical elements, and has a surface of 25
one of said optical elements, between said front and back surfaces, providing said multiorder diffractive structure.
26. The lens according to Claim 24 wherein said lens body is provided by multiple optical elements successively adjacent to each other, and two of said adjacent optical elements each have a surface facing each other, and said multiorder diffractive structure is provided along a lower region upon the surface of one of said two adjacent optical elements.
27. The lens according to Claim 24 wherein said lens body is provided by multiple optical elements successively adjacent to each other, and said multiorder diffractive structure is provided upon a member positioned between two of said adjacent optical elements.
28. The lens according to Claim 24 wherein said lens body is provided by a single optical element.
29. The multiorder diffractive lens according to Claim 24 wherein one or more said diffractive structures is in accordance with wavelengths for both photopic and scotopic vision.
30. The multiorder diffractive lens according to Claim 29 wherein said photopic and scotopic vision each have a wavelength of peak efficiency, and the wavelength of peak efficiency for both photopic and scotopic vision aligns with a wavelength of peak efficiency for each of said diffractive structures.
31. The multiorder diffractive lens according to Claim 24 wherein one or more of said diffractive structures corrects for astigmatism.
32. A bifocal multiorder diffractive lens comprising: a lens body having a multifocal diffractive structure for distance vision correction, and one or more refractive regions for adding power to said lens for near vision correction.
33. The multiorder diffractive lens according to Claim 32 wherein said lens body is provided by a single optical element, and said lens body has a first surface having said diffractive structure and a second surface having said one or more refractive τegiθns. 26
34. The multiorder diffractive lens according to Claim 32 wherein said lens body is provided by multiple optical elements,
35. The multiorder diffractive lens according to Claim 34 wherein said diffractive sftucture is provided on an internal surface of said lens between two of said multiple optical elements,
36. The multiorder diffractive lens according to Claim 32 wherein said diffractive structure is in accordance with wavelengths for both photopic and scotopic vision.
37. The multiorder diffractive lens according to Claim 36 wherein said photopic and scotopic vision each have a wavelength of peak efficiency, and the wavelength of peak efficiency for both photopic and scotopic vision aligns with a wavelength of peak efficiency for said diffractive structure.
38. The multiorder diffractive lens according to Claim 36 wherein said diffractive structure corrects for astigmatism.
39. A multiorder diffractive ptic comprising: one or more multiorder diffractive structures in which each of said diffractive structures is in accordance with wavelengths for both photopic and scotopic vision.
40. The optic according to Claim 39 wherein said photopic and scotopic vision each have a wavelength of peak efficiency, and the wavelength of peak efficiency for both photopic and scotopic vision aligns with a wavelength of peak efficiency for each of said diffractive Structures.
41. A multiorder diffractive optic comprising: a body having two or more multiorder diffractive structures providing different optical powers in which each one of said diffractive structures directs light in a plurality of different wavelengths in different diffractive orders to a single focus in accordance with the optical power of said one of said diffractive structures. 27
42. The optic according to Claim 1 wherein all of said diffractive structures are provided on a single surface of said lens body.
43. The optic according to Claim 41 wherein each of said diffractive structures are provided on different surfaces of said lens body.
44. The optic according to Claim 41 wherein said lens body is provided by a single optical element,
45. The optic according to Claim 41 wherein said lens body is provided by multiple optical elements,
46- The optic according to Claim 41 wherein at least one of said diffractive structures are provided on an internal surface of said lens between two of said multiple optical elements.
47. The optic according to Claim 41 wherein one or more of said diffractive structures is in accordance with wavelengths for both photopic and scotopic vision.
48. The optic according to Claim 47 wherein said photopic and scotopic vision each have a wavelength of peak efficiency, and the wavelength of peak efficiency for both photopic and scotopic vision aligns with a wavelength of peak efficiency for each of said diffractive structures.
49. The optic according to Claim 41 wherein one or more of said diffractive structures corrects for astigmatism.
28
50. The optical element according to Claim 1 wherein at least one of said diffractive structures has peak efficiencies at wavelengths corresponding to selected wavelengths of peak operation efficiencies.
51. The optical element according to Claim 50 wherein said selected wavelengths of peak operation efficiencies are two in number and are associated with photopic and scotopic vision, respectively.
52. The optical element according to Claim 41 wherein said optical clement is multifocal by each of said diffractive structures of different optical power having the ability to direct light to a different focus.
53. A multiorder diffractive optical element comprising: two or more multiorder diffractive structures each having an optical power in which at least two of said diffractive structures have different optical powers; and each of said two or more diffractive structures directs light in different diffractive orders to a single focus, and said single focus of each of said two or more diffractive structures is in accordance with their respective optical power,
54. The optical element according to Claim 53 wherein each of said diffractive Structures of different optical power direct light to different foci, thereby providing multifocal performance to said optical element.
55. The optical element according to Claim 53 wherein each of said two or more multiorder diffractive structures comprises a plurality of zones which define zone boundaries at which light incident on the diffractive structure experiences an optical phase shift, and which diffract light of different wavelengths in different diffractive orders, m, such that m > 1, to the single focus for the diffractive structure.
56. The optical element according to Claim 53 further comprising a single or multiple element lens body having said two or more multiorder diffractive structures. 29
57- The optical element according to Claim 53 wherein at least one of said diffractive slructures has wavelengths of peak efficiency corresponding to wavelengths of peak efficiency associated with photopic and scotopic vision.
58. The optical element according to Claim 53 wherein at least one of diffractive structures corrects for astigmatism.
59. A multiorder diffractive optical element comprising: one or more multiorder diffractive structures; and at least one of said diffractive structures has peak efficiencies at wavelengths corresponding to selected wavelengths of peak operation efficiencies.
60. The optical element according to Claim 59 wherein said selected wavelengths of peak operation efficiencies aTe two in number and are associated with photopic and scotopic vision, respectively,
61. The optical element according to Claim 59 said diffractive structures number two or more, and at least two of said diffractive structures have different optical powers.
62. The optical element according to Claim 61 wherein each of said at least two of said diffractive structures have different optical powers which direct light in different diffractive orders to a different single focus in accordance with their respective optical power, thereby providing an optical element which is multifocal.
PCT/US2004/019009 2003-06-16 2004-06-16 Bifocal multiorder diffractive lenses for vision correction WO2004113959A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU2004250644A AU2004250644C1 (en) 2003-06-16 2004-06-16 Bifocal multiorder diffractive lenses for vision correction
JP2006517283A JP2006527867A (en) 2003-06-16 2004-06-16 Bifocal multi-order diffractive lens for vision correction
NZ544127A NZ544127A (en) 2003-06-16 2004-06-16 Bifocal multiorder diffractive lenses for vision correction
CA002529383A CA2529383A1 (en) 2003-06-16 2004-06-16 Bifocal multiorder diffractive lenses for vision correction
EP04755286A EP1634115A4 (en) 2003-06-16 2004-06-16 Bifocal multiorder diffractive lenses for vision correction
IL172320A IL172320A0 (en) 2003-06-16 2005-12-01 Bifocal multiorder diffractive lenses for vision correction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/462,294 US6951391B2 (en) 2003-06-16 2003-06-16 Bifocal multiorder diffractive lenses for vision correction
US10/462,294 2003-06-16

Publications (3)

Publication Number Publication Date
WO2004113959A2 WO2004113959A2 (en) 2004-12-29
WO2004113959A3 WO2004113959A3 (en) 2005-04-14
WO2004113959B1 true WO2004113959B1 (en) 2005-06-02

Family

ID=33511436

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/019009 WO2004113959A2 (en) 2003-06-16 2004-06-16 Bifocal multiorder diffractive lenses for vision correction

Country Status (11)

Country Link
US (3) US6951391B2 (en)
EP (1) EP1634115A4 (en)
JP (1) JP2006527867A (en)
KR (1) KR20060039863A (en)
CN (1) CN1833192A (en)
AU (1) AU2004250644C1 (en)
CA (2) CA2529383A1 (en)
IL (1) IL172320A0 (en)
NZ (2) NZ544127A (en)
SG (2) SG152958A1 (en)
WO (1) WO2004113959A2 (en)

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