Patent US6024447A successfully refreshed from Google Patents.
US6024447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enhanced monofocal ophthalmic lens
Assignee: Johnson and Johnson Surgical Vision Inc
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Filing: 1998-01-27
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Granted: 2000-02-15
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Expires: 2018-01-27
Abstract
Abstract An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus is adapted to be implanted into an eye, placed over the eye, or to be disposed in a cornea of the eye. The ophthalmic lens includes a baseline diopter power for far vision correction, a first zone having a first vision correction power, and a second zone having a second vision correction power. The second zone is located radially outwardly of the first zone. The first zone includes a near vision correction power, and the second zone includes a far vision correction power. A maximum diopter value of the first zone is approximately 0.7 diopters above the baseline diopter, and a minimum diopter value of the second zone is approximately 0.5 diopters below the baseline diopter power. The first zone is adapted for focusing light at a first predetermined distance from the retina of the user, and the second zone is adapted for focusing light at a second predetermined distance from the retina of the user. The second predetermined distance is approximately opposite and equal to the first predetermined distance. A third zone, which is substantially similar to the first zone, is located radially outwardly of the second zone, and a fourth zone, which is substantially similar to the second zone, is located radially outwardly of the third zone. A third vision correction power of the third zone is approximately the same as the first vision correction power of the first zone, and a fourth vision correction power of the fourth zone is approximately the same as the second vision correction power of the second zone.
Inventors
- 👤 Valdemar Portney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:44
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; G02C7/04; G02C7/041; G02C7/044; A; A61; A61F; A61F2/00; A61F2/02; A61F2/14; A61F2/16; A61F2/1613; G02C7/042; G02C7/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
126 words
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus, the ophthalmic lens having a central optical axis and a baseline diopter power for far vision correction and comprising: a first zone surrounding and extending from the central optical axis and adapted for focusing light at a first predetermined distance in front of a retina of a user; and a second zone located radially outwardly of the first zone for focusing light at a second predetermined distance behind the retina of the user, the second predetermined distance being approximately equal to the first predetermined distance, the first and second zones being adapted to assist the ophthalmic lens in providing a monofocal vision correction power with an enhanced depth of focus.
Claim 2
Dependent Claim
126 words
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus, the ophthalmic lens having a central optical axis and a baseline diopter power for far vision correction and comprising: a first zone surrounding and extending from the central optical axis and adapted for focusing light at a first predetermined distance in front of a retina of a user; and a second zone located radially outwardly of the first zone for focusing light at a second predetermined distance behind the retina of the user, the second predetermined distance being approximately equal to the first predetermined distance, the first and second zones being adapted to assist the ophthalmic lens in providing a monofocal vision correction power with an enhanced depth of focus.
Claim 3
Dependent Claim
63 words
The ophthalmic lens as recited in claim 1, further comprising: a third zone located radially outwardly of the second zone and adapted for focussing light at the first predetermined distance from the retina of the user; and a fourth zone located radially outwardly of the third zone and adapted for focussing light at the second predetermined distance from the retina of the user.
Claim 4
Dependent Claim
63 words
The ophthalmic lens as recited in claim 2, further comprising: a fifth zone located radially outwardly of the fourth zone and adapted for focussing light at the first predetermined distance from the retina of the user; and a sixth zone located radially outwardly of the fifth zone and adapted for focussing light at the second predetermined distance from the retina of the user.
Claim 5
Dependent Claim
172 words
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus, the ophthalmic lens having a central optical axis and a baseline diopter power for far vision correction and comprising: a first zone extending from the central optical axis and having a vision correction power that progressively changes from the baseline diopter power along a radially outwardly direction to a first diopter power, and then progressively changes back to the baseline diopter power; and a second zone circumscribing the first zone and having a second vision correction power that progressively changes along a radially outwardly direction from the baseline diopter power to a second diopter value, and then progressively changes back to the baseline diopter power, the first zone and the second zone being adapted for focusing light at approximately equal distances in front of and behind a retina of a user, the first and second zones being adapted to assist the ophthalmic lens in providing a monofocal vision correction power with an enhanced depth of focus.
Claim 6
Dependent Claim
172 words
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus, the ophthalmic lens having a central optical axis and a baseline diopter power for far vision correction and comprising: a first zone extending from the central optical axis and having a vision correction power that progressively changes from the baseline diopter power along a radially outwardly direction to a first diopter power, and then progressively changes back to the baseline diopter power; and a second zone circumscribing the first zone and having a second vision correction power that progressively changes along a radially outwardly direction from the baseline diopter power to a second diopter value, and then progressively changes back to the baseline diopter power, the first zone and the second zone being adapted for focusing light at approximately equal distances in front of and behind a retina of a user, the first and second zones being adapted to assist the ophthalmic lens in providing a monofocal vision correction power with an enhanced depth of focus.
Claim 7
Dependent Claim
111 words
The ophthalmic lens as recited in claim 4, further comprising: a third zone circumscribing the second zone, the third zone having a vision correction power that progressively changes along a radially outwardly direction from the baseline diopter power to a diopter power similar in magnitude to the first diopter power, and then progressively changes back to the baseline diopter power; and a fourth zone circumscribing the third zone, the fourth zone having a vision correction power that progressively changes along a radially outwardly direction from the baseline diopter power to a diopter power similar in magnitude to the second diopter power, and then progressively changes back to the baseline diopter power.
Claim 8
Dependent Claim
30 words
The ophthalmic lens as recited in claim 5, the first and third zones comprising near vision correction powers and the second and fourth zones comprising far, far vision correction powers.
Claim 9
Dependent Claim
127 words
The ophthalmic lens as recited in claim 6, the third zone and the fourth zone comprising a pair of zones, and the ophthalmic lens further comprising additional pairs of zones, each additional pair of zones comprising: an inner zone having a vision correction power that progressively changes along a radially outwardly direction from the baseline diopter power to a diopter power similar in magnitude to the first diopter power, and then progressively changes back to the baseline power; and an outer zone circumscribing the inner zone and having a vision correction power that progressively changes along a radially outwardly direction from the baseline diopter power to a diopter power similar in magnitude to the second diopter power, and then progressively changes back to the baseline diopter power.
Claim 10
Dependent Claim
27 words
The ophthalmic lens as recited in claim 6, wherein a plot of diopter power versus distance-squared from lens center of the ophthalmic lens resembles a sawtooth line.
Claim 11
Dependent Claim
180 words
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus, the ophthalmic lens having a baseline diopter power for far vision correction and comprising a single set of annular alternating positive and negative vision correction powers relative to the baseline diopter power, which repeats along a radially outwardly direction from an optical axis of the ophthalmic lens, the set of alternating vision correction powers comprising: a first zone having a vision correction power that progressively changes from the baseline diopter power along a radially outwardly direction to a first diopter power, and then progressively changes along a radially outwardly direction back to the baseline diopter power; and a second zone circumscribing the first zone and having a vision correction power that progressively chances along a radially outwardly direction from the baseline diopter power to a second diopter power, and then progressively changes back to the baseline diopter power, the first zone and the second zone being adapted for focusing light at approximately equal distances in front of and behind a retina of a user.
Claim 12
Dependent Claim
180 words
An ophthalmic lens for providing a monofocal vision correction power with an enhanced depth of focus, the ophthalmic lens having a baseline diopter power for far vision correction and comprising a single set of annular alternating positive and negative vision correction powers relative to the baseline diopter power, which repeats along a radially outwardly direction from an optical axis of the ophthalmic lens, the set of alternating vision correction powers comprising: a first zone having a vision correction power that progressively changes from the baseline diopter power along a radially outwardly direction to a first diopter power, and then progressively changes along a radially outwardly direction back to the baseline diopter power; and a second zone circumscribing the first zone and having a vision correction power that progressively chances along a radially outwardly direction from the baseline diopter power to a second diopter power, and then progressively changes back to the baseline diopter power, the first zone and the second zone being adapted for focusing light at approximately equal distances in front of and behind a retina of a user.
Claim 13
Dependent Claim
28 words
The ophthalmic lens as recited in claim 9, the first zone comprising a near vision correction power and the second zone comprising a far, far vision correction power.
Claim 14
Dependent Claim
29 words
The ophthalmic lens as recited in claim 10, a magnitude of the near vision correction power being approximately 1.4 times a magnitude of the far, far vision correction power.
References Cited (Backward Citations)
USRE25286E
Cited
US25286A
Cited
US1483509A
Cited
US2129305A
Cited
US2274142A
Cited
US2405989A
Cited
US2511517A
Cited
US3004470A
Cited
US3031927A
Cited
US3034403A
Cited
US3227507A
Cited
US3339997A
Cited
US3210894A
Cited
US3420006A
Cited
US3431327A
Cited
US3482906A
Cited
US3542461A
Cited
US3693301A
Cited
US4055378A
Cited
US3794414A
Cited
US4062629A
Cited
US3932148A
Cited
US4240719A
Cited
US4073579A
Cited
US4210391A
Cited
US4195919A
Cited
US4315673A
Cited
US4199231A
Cited
US4338005A
Cited
US4340283A
Cited
US4274717A
Cited
US4418991A
Cited
US4307945A
Cited
US4377329A
Cited
US4402579A
Cited
US4618228A
Cited
US4504982A
Cited
US4573775A
Cited
US4641934A
Cited
US4890913A
Cited
US4704016A
Cited
US4637697A
Cited
US4580882A
Cited
US4618229A
Cited
US4813955A
Cited
US4636049A
Cited
US4596578A
Cited
US4636211A
Cited
US4720286A
Cited
US4759762A
Cited
US4693572A
Cited
US4752123A
Cited
US4890912A
Cited
US4938583A
Cited
US4898461A
Cited
US5225858A
Cited
US4769033A
Cited
US5019099A
Cited
US4921496A
Cited
US4917681A
Cited
US4919663A
Cited
US4881804A
Cited
US5000559A
Cited
US4923296A
Cited
US4830481A
Cited
US5002382A
Cited
US5112351A
Cited
US5260727A
Cited
US5106180A
Cited
US5652638A
Cited
US5684560A
Cited
US5864378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-02-14 | 2003-08-16 | 2004-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-02-14 | 2007-08-16 | 2008-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-02-14 | 2011-08-16 | 2012-02-15 | $7700.00 | Window Closed / Lapsed |