US5648832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decentered noncorrective lens for eyewear
Assignee: Oakley Inc
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Filing: 1995-12-05
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Granted: 1997-07-15
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Expires: 2015-12-05
Abstract
Abstract Disclosed is an optically corrected lens for nonprescription, dual lens eyeglasses. In a preferred embodiment, the anterior surface of the lens lies on a portion of a first sphere having a first center. The posterior surface of the lens lies on the surface of a second sphere having a second center. The first and second centers are offset from one another to provide a tapered lens. The lens is oriented on the head of the wearer by a frame that maintains the lens in a position such that a line drawn through the first and second centers is maintained substantially in parallel to the normal sight line of the wearer. Methods of making the lenses, and eyewear incorporating the lenses, are also disclosed.
Inventors
- 👤 Malcolm Neal Houston
- 👤 James H. Jannard
- 👤 Carlos D. Reyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:56
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/02; A; A61; A61F; A61F9/00; A61F9/02; A61F9/025; A61F9/029; G02C5/00; A61F2009/021
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
147 words
An eyeglass lens, for use in noncorrective dual lens eyewear, in combination with a frame to support the lens in the path of a wearer's normal line of sight, comprising: a lens body; a front surface and a rear surface on the lens body, defining a lens thickness therebetween; the front surface conforming substantially to a portion of the surface of a first sphere having a first center; the rear surface conforming substantially to a portion of the surface of a second sphere having a second center; said first center and said second center offset from one another to taper said lens thickness; wherein said lens is mounted in the frame such that an optical centerline drawn through said first and second centers is spaced from and maintained substantially parallel with the wearer's normal line of sight in each of a horizontal plane and a vertical plane.
Claim 2
Dependent Claim
147 words
An eyeglass lens, for use in noncorrective dual lens eyewear, in combination with a frame to support the lens in the path of a wearer's normal line of sight, comprising: a lens body; a front surface and a rear surface on the lens body, defining a lens thickness therebetween; the front surface conforming substantially to a portion of the surface of a first sphere having a first center; the rear surface conforming substantially to a portion of the surface of a second sphere having a second center; said first center and said second center offset from one another to taper said lens thickness; wherein said lens is mounted in the frame such that an optical centerline drawn through said first and second centers is spaced from and maintained substantially parallel with the wearer's normal line of sight in each of a horizontal plane and a vertical plane.
Claim 3
Dependent Claim
21 words
An eyeglass lens as in claim 1, wherein said first sphere has a base curve of greater than about base 6.
Claim 4
Dependent Claim
21 words
An eyeglass lens as in claim 2, wherein said first sphere has a base curve of greater than about base 8.
Claim 5
Dependent Claim
43 words
An eyeglass lens as in claim 3 wherein said first sphere has a base curve of about base 8.75, and said lens is no thicker at any point than about 1.65 mm and is no thinner at any point than about 1.15 mm.
Claim 6
Dependent Claim
48 words
An eyeglass lens as in claim 1, wherein a horizontal component of the wearer's normal line of sight in a horizontal plane deviates in an as worn orientation by no more than about ±10° from parallel with a horizontal component of said optical centerline in said horizontal plane.
Claim 7
Dependent Claim
40 words
An eyeglass lens as in claim 5, wherein said horizontal component of the wearer's normal line of sight deviates in an as worn orientation by no more than about ±5° from parallel with said horizontal component of said optical centerline.
Claim 8
Dependent Claim
40 words
An eyeglass lens as in claim 6, wherein said horizontal component of the wearer's normal line of sight deviates in an as worn orientation by no more than about ±2° from parallel with said horizontal component of said optical centerline.
Claim 9
Dependent Claim
33 words
An eyeglass lens as in claim 7, wherein said horizontal component of the wearer's normal line of sight is parallel in an as worn orientation with said horizontal component of said optical centerline.
Claim 10
Dependent Claim
48 words
An eyeglass lens as in claim 1, wherein a vertical component of the wearer's normal line of sight in a vertical plane deviates in an as worn orientation by no more than about ±10° from parallel with a vertical component of said optical centerline in said vertical plane.
Claim 11
Dependent Claim
40 words
An eyeglass lens as in claim 9, wherein said vertical component of the wearer's normal line of sight deviates in an as worn orientation by no more than about ±3° from parallel with said vertical component of said optical centerline.
Claim 12
Dependent Claim
33 words
An eyeglass lens as in claim 10, wherein said vertical component of the wearer's normal line of sight is parallel in an as worn orientation with said vertical component of said optical centerline.
Claim 13
Dependent Claim
48 words
An eyeglass lens as in claim 10, wherein a horizontal component of the wearer's normal line of sight in a horizontal plane deviates in an as worn orientation by no more than about ±2° from parallel with a horizontal component of said optical centerline in said horizontal plane.
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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) | 2000-07-14 | 2001-01-13 | 2001-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-07-14 | 2005-01-13 | 2005-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-07-14 | 2009-01-13 | 2009-07-15 | $7700.00 | Window Closed / Lapsed |