Patent US1933636A successfully refreshed from Google Patents.
Patent US5877839A successfully refreshed from Google Patents.
US5877839A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multifocal ophthalmic lens
Assignee: Johnson and Johnson Surgical Vision Inc
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Filing: 1997-03-05
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Granted: 1999-03-02
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Expires: 2017-03-05
Abstract
Abstract An improved opthalmic lens is disclosed which has a plurality of alternating power zones with a continuously varying power within each zone, as well as in transition from one zone to another. In other words, a plurality of concentric zones (at least two) are provided in which the variation from far to near vision correction is continuous, i.e., from near correction focal power to far correction focal power, then back to near, and again back to far, or vice versa. This change is continuous (progressive), without any abrupt correction changes, or "edges". Two versions of the invention are disclosed. In the first version continuous, alternating power variation is accomplished by a continuously changing curvature of the lens posterior surface, thereby altering the angle of impact of light rays on the eye. In the second version continuous, alternating power variation is accomplished by creating non-homogeneous surface characteristics having refractive material indexes which continuously vary in the lens radial direction (out from the optical axis).
Inventors
- 👤 Valdemar Portney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:29
CPC Classifications
A; A61; A61L; A61L27/00; A61L27/36; A61L27/3604; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; A61F2/1616; A61F2/1618; A61F2/145; A61F2/1451; G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/041; G02C7/042; G02C7/044; G02C7/06; G02C7/061; G02C7/068; A61B; A61B17/00; A61B2017/00969
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
86 words
A method of vision correction comprising shaping first, second and third regions of a surface to provide the first region with a first vision correction power, the second region with a second vision correction power which is different from the first vision correction power to enhance vision at first and second different distances, respectively, and the third region between said first and second regions to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers.
Claim 2
Independent Claim
86 words
A method of vision correction comprising shaping first, second and third regions of a surface to provide the first region with a first vision correction power, the second region with a second vision correction power which is different from the first vision correction power to enhance vision at first and second different distances, respectively, and the third region between said first and second regions to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers.
Claim 3
Dependent Claim
39 words
A method of vision correction as defined in claim 1 wherein the step of shaping is carried out to provide the first region with a near vision correction power and the second region with a far vision correction power.
Claim 4
Dependent Claim
57 words
A method of vision correction as defined in claim 1 wherein the step of shaping includes shaping a fourth region of the surface to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers, said second region being between the third region and the fourth region.
Claim 5
Independent Claim
101 words
A method of vision correction comprising: shaping first and second annular regions of a surface to provide the first region with a first vision correction power and the second region with a second vision correction power which is different from the first vision correction power to enhance vision at first and second different distances, respectively; and shaping a third annular region of the surface between said first and second regions to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers, said second annular region circumscribing the first annular region.
Claim 6
Independent Claim
101 words
A method of vision correction comprising: shaping first and second annular regions of a surface to provide the first region with a first vision correction power and the second region with a second vision correction power which is different from the first vision correction power to enhance vision at first and second different distances, respectively; and shaping a third annular region of the surface between said first and second regions to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers, said second annular region circumscribing the first annular region.
Claim 7
Dependent Claim
50 words
A method of vision correction as defined in claim 4 including shaping a fourth annular region of the surface to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers, said fourth annular region circumscribing the second annular region.
Claim 8
Dependent Claim
40 words
A method of vision correction as defined in claim 4 including shaping a central region of the surface to provide a vision correction power intermediate the first and second vision correction powers, said first annular region circumscribing the central region.
Claim 9
Dependent Claim
84 words
A multifocal surface with a first region having a configuration which provides a first vision correction power, a second region having a configuration which provides a second vision correction power which is different from the first vision correction power to enhance vision at first and second different distances, respectively, and a third region between the first and second regions having a configuration which provides progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers.
Claim 10
Dependent Claim
84 words
A multifocal surface with a first region having a configuration which provides a first vision correction power, a second region having a configuration which provides a second vision correction power which is different from the first vision correction power to enhance vision at first and second different distances, respectively, and a third region between the first and second regions having a configuration which provides progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers.
Claim 11
Dependent Claim
19 words
A multifocal surface as defined in claim 7 wherein the first and second distances are near and far, respectively.
Claim 12
Dependent Claim
25 words
A multifocal surface as defined in claim 7 wherein the first, second and third regions are annular and the second region circumscribes the first region.
Claim 13
Dependent Claim
51 words
A multifocal surface as defined in claim 7 which has a fourth region with a surface configuration to provide progressive vision correction powers which include progressive vision correction powers which are between the first and second vision correction powers, said second region being between the third region and the fourth region.
Claim 14
Dependent Claim
46 words
A multifocal surface as defined in claim 10 wherein each of said first, second, third and fourth regions of the surface is annular with the third region circumscribing the first region, the second region circumscribing the third region and the fourth region circumscribing the second region.
Claim 15
Dependent Claim
48 words
A multifocal surface as defined in claim 11 wherein the progressive vision correction powers include progressive vision correction powers which increase in a radial direction across one of the third and fourth regions and decrease in said radial direction across the other of the third and fourth regions.
Claim 16
Dependent Claim
35 words
A multifocal surface as defined in claim 12 wherein the anterior surface has a central region circumscribed by the first region which provides a vision correction power intermediate the first and second vision correction powers.
Claim 17
Dependent Claim
79 words
A multifocal surface having progressive vision correction powers in first and second at least partially annular regions, said second region at least partially circumscribing the first region, the progressive vision correction powers of one of said first and second regions including progressive vision correction powers which increase in a radial outward direction and the progressive vision correction powers of the other of said first and second regions including progressive vision correction powers which decrease in a radial outward direction.
Claim 18
Dependent Claim
79 words
A multifocal surface having progressive vision correction powers in first and second at least partially annular regions, said second region at least partially circumscribing the first region, the progressive vision correction powers of one of said first and second regions including progressive vision correction powers which increase in a radial outward direction and the progressive vision correction powers of the other of said first and second regions including progressive vision correction powers which decrease in a radial outward direction.
Claim 19
Dependent Claim
16 words
A multifocal surface as defined in claim 14 wherein said first region is substantially completely annular.
Claim 20
Dependent Claim
18 words
A multifocal surface as defined in claim 15 wherein said second region substantially completely circumscribes the first region.
Claim 21
Dependent Claim
30 words
A multifocal surface as defined in claim 14 wherein the progressive vision correction power of each of the first and second regions varies between near and far vision correction powers.
Claim 22
Dependent Claim
106 words
A multifocal surface having progressive vision correction powers in first, second, third and fourth at least partially annular regions, said second, third and fourth regions at least partially circumscribing the first, second and third regions, respectively, the first and third regions constituting a first set of regions and the second and fourth regions constituting a second set of regions, the progressive vision correction powers of said first set of regions including progressive vision correction powers which increase in a radial outward direction and the progressive vision correction powers of said second set of regions including progressive vision correction powers which decrease in a radial outward direction.
Claim 23
Dependent Claim
106 words
A multifocal surface having progressive vision correction powers in first, second, third and fourth at least partially annular regions, said second, third and fourth regions at least partially circumscribing the first, second and third regions, respectively, the first and third regions constituting a first set of regions and the second and fourth regions constituting a second set of regions, the progressive vision correction powers of said first set of regions including progressive vision correction powers which increase in a radial outward direction and the progressive vision correction powers of said second set of regions including progressive vision correction powers which decrease in a radial outward direction.
Claim 24
Dependent Claim
161 words
A multifocal surface having first and second zones with the second zone circumscribing the first zone, said first zone including in radial outwardly extending order a first vision correction power, progressive vision correction powers, a second vision correction power and progressive vision correction powers, said first and second vision correction powers being different and said progressive vision correction powers including progressive vision correction powers between the first and second vision correction powers, said second zone including in radial outwardly extending order a third vision correction power, progressive vision correction powers, a fourth vision correction power and progressive vision correction powers, said third and fourth vision correction powers being different and the progressive vision correction powers of the second zone including vision correction powers between the third and fourth vision correction powers, said surface having a central zone which includes a power intermediate the first and second vision correction powers, said zones being concentric with the first zone circumscribing the central zone.
Claim 25
Dependent Claim
161 words
A multifocal surface having first and second zones with the second zone circumscribing the first zone, said first zone including in radial outwardly extending order a first vision correction power, progressive vision correction powers, a second vision correction power and progressive vision correction powers, said first and second vision correction powers being different and said progressive vision correction powers including progressive vision correction powers between the first and second vision correction powers, said second zone including in radial outwardly extending order a third vision correction power, progressive vision correction powers, a fourth vision correction power and progressive vision correction powers, said third and fourth vision correction powers being different and the progressive vision correction powers of the second zone including vision correction powers between the third and fourth vision correction powers, said surface having a central zone which includes a power intermediate the first and second vision correction powers, said zones being concentric with the first zone circumscribing the central zone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-03-01 | 2002-08-31 | 2003-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-01 | 2006-08-31 | 2007-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-01 | 2010-08-31 | 2011-03-02 | $7700.00 | Window Closed / Lapsed |