US4952046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical lenses with selective transmissivity functions
Assignee: SunTiger Inc
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Filing: 1988-07-25
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Granted: 1990-08-28
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Expires: 2008-07-25
Abstract
Abstract An opthalmic spectacle or contact sharp cut-on orange lens that improves visual acuity and substantially reduces eye damage in a bright sunlit environment. The lenses substantially eliminate ultraviolet radiation and blue light shorter than 515 nm. The ultraviolet radiation has been implicated as a cause of cateractogenisis. The blue light is implicated in senile macular degenerations, night blindness and snow blindness. The lens is substantially transparent to wavelengths greater than 636 nm which are most useful for high visual acuity in bright sunlit environment.
Inventors
- 👤 James B. Stephens
- 👤 Charles G. Miller, deceased
- 👤 executrix by Ann S. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:15
CPC Classifications
G; G02; G02C; G02C7/00; G02C7/10; G02C7/104; G02C7/02; G02C7/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
98 words
A lens worn in front of the eyes by humans, in an outdoor sunlit environment, where said lens is a filter barrier to photons deleterious to the eyes and that is also a transmitter of visible light most useful for high visual acuity, where said lens comprises: (a) a transparent, organic plastic matrix material, and (b) a sharp cut-on orange dye incorporated into said material that allows the lens to transmit at least 90% of the visible sunlight with wavelengths longer than 636 nm and block more than 99% of all sunlight with wavelengths shorter than 515 nm.
Claim 2
Dependent Claim
98 words
A lens worn in front of the eyes by humans, in an outdoor sunlit environment, where said lens is a filter barrier to photons deleterious to the eyes and that is also a transmitter of visible light most useful for high visual acuity, where said lens comprises: (a) a transparent, organic plastic matrix material, and (b) a sharp cut-on orange dye incorporated into said material that allows the lens to transmit at least 90% of the visible sunlight with wavelengths longer than 636 nm and block more than 99% of all sunlight with wavelengths shorter than 515 nm.
Claim 3
Dependent Claim
35 words
The lens as specified in claim 1 wherein said sharp cut-on orange dye is from the group of commercially available dyes known as Color Index Dispersed Orange Dye 3 also known as Color INdex 11005.
Claim 4
Dependent Claim
18 words
The lens as specified in claim 2 wherein said sharp cut-on orange dye is Ciba-Geigy Cebacet Orange 2R.
Claim 5
Dependent Claim
28 words
The lens as specified in claim 1 wherein said sharp cut-on orange dye is from the group of commercially available dyes known as Color Index Solvent Orange Dye.
Claim 6
Dependent Claim
18 words
The lens as specified in claim 4 wherein said sharp cut-on orange dye is Ciba-Geigy Orasol Orange G.
Claim 7
Dependent Claim
24 words
The lens as specified in claim 1 wherein said lens is designed to eliminate the ultraviolet-radiation hazard which in turn, reduces incidents of cateractogenisis.
Claim 8
Dependent Claim
26 words
The lens as specified in claim 1 wherein said lens is designed to reduce the blue-light hazard which in turn, reduces incidents of senile macular degeneration.
Claim 9
Dependent Claim
17 words
The lens as specified in claim 1 wherein said lens is designed to achieve the visual acuity.
Claim 10
Dependent Claim
18 words
The lens as specified in claim 1 wherein said lens is designed for use as a spectacle lens.
Claim 11
Dependent Claim
18 words
The lens as specified in claim 1 wherein said lens is designed for use as a contact lens.
References Cited (Backward Citations)
US4740070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |