US4169664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining peripheral vision
Assignee: SYNEMED Inc
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Filing: 1977-11-30
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Granted: 1979-10-02
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Expires: 1997-11-30
Abstract
Abstract An apparatus for use in determining the peripheral vision extent of a patient's eye includes a contact lens type construction detachably fitted to the eye having multiple optical fibers each extending to an illuminating source. Upon illumination of a selected fiber, light is directed into the eye and the patient's response noted. The fibers are distributed so as to extend radially outwardly on the lens and thus a patient's responses provide a so-called "map" of peripheral vision extent.
Inventors
- 👤 Paul F. Bailey, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/12; A61B3/125; A61B3/02; A61B3/024; A61B3/11; A61B3/112; A61B3/14
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
62 words
Apparatus for use in determining the peripheral vision extent of an eye comprising: contact means for detachable fitting on the cornea; and light emitting means operable for selectively directing light into the eye including multiple optical fibers distributed over the area bounded by the periphery of said contact means at discrete locations radially spaced from the central axis of said contact means.
Claim 2
Dependent Claim
62 words
Apparatus for use in determining the peripheral vision extent of an eye comprising: contact means for detachable fitting on the cornea; and light emitting means operable for selectively directing light into the eye including multiple optical fibers distributed over the area bounded by the periphery of said contact means at discrete locations radially spaced from the central axis of said contact means.
Claim 3
Dependent Claim
16 words
The apparatus of claim 1, wherein at least a portion of said contact means is nontransparent.
Claim 4
Dependent Claim
31 words
The apparatus of claim 1 further including an illuminator means, each of said fibers having one end connected to said contact means and the other end disposed adjacent said illuminator means.
Claim 5
Dependent Claim
17 words
The apparatus of claim 3, wherein said illuminator means is operable for selectively illuminating a preselected fiber.
Claim 6
Dependent Claim
20 words
The apparatus of claim 4, wherein said illuminator means is operable for selectively regulating light intensity in an illuminated fiber.
Claim 7
Dependent Claim
25 words
The apparatus of claim 5, wherein said illuminator means includes multiple light producing elements, each being selectively positionable for illuminating preselected ones of said fibers.
Claim 8
Dependent Claim
14 words
The apparatus of claim 6, wherein recorder means are provided for recording fiber illumination.
Claim 9
Dependent Claim
80 words
Apparatus for use in determining the peripheral vision extent of an eye comprising: contact means for detachable fitting on the cornea; multiple optical fibers each having one end connected to said contact means, said fibers being distributed over the area bounded by the periphery of said contact means at discrete locations radially spaced from the central axis of said contact means; and illuminator means including a plurality of selectively operable light producing elements for illuminating preselected ones of said fibers.
Claim 10
Dependent Claim
80 words
Apparatus for use in determining the peripheral vision extent of an eye comprising: contact means for detachable fitting on the cornea; multiple optical fibers each having one end connected to said contact means, said fibers being distributed over the area bounded by the periphery of said contact means at discrete locations radially spaced from the central axis of said contact means; and illuminator means including a plurality of selectively operable light producing elements for illuminating preselected ones of said fibers.
Claim 11
Dependent Claim
32 words
The apparatus of claim 8, wherein said contact means includes a first member having a generally concave surface for accommodating the eye's curvature and a second member mounted on said first member.
Claim 12
Dependent Claim
19 words
The apparatus of claim 9, wherein said members have at least a portion of their adjacent surfaces spaced apart.
Claim 13
Dependent Claim
15 words
The apparatus of claim 10, wherein said optical fibers are connected to said second member.
Claim 14
Dependent Claim
19 words
The apparatus of claim 11, wherein at least a portion of said second member is nontransparent to external light.
Claim 15
Dependent Claim
21 words
The apparatus of claim 8 wherein said light producing elements are each selectively positionable for illuminating preselected ones of said fibers.
Claim 16
Dependent Claim
25 words
The apparatus of claim 13, wherein each of said light producing elements is operable for selectively regulating light intensity in a fiber illuminated by it.
Claim 17
Dependent Claim
26 words
The apparatus of claim 14 wherein an iris myrograph is provided on said contact means for detecting pupil responses to an illuminated one of said fibers.
Claim 18
Dependent Claim
30 words
The apparatus of claim 8 wherein said fibers are connected to said contact means in a plurality of rows which extend radially from the central axis of said contact means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-01 | 1983-04-02 | 1983-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-01 | 1987-04-02 | 1987-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-01 | 1991-04-02 | 1991-10-02 | $7700.00 | Window Closed / Lapsed |