US4334736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet cornea microscope
Assignee: Individual
•
Filing: 1980-05-23
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Granted: 1982-06-15
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Expires: 2000-05-23
Abstract
Abstract A wet cornea microscope enables a viewer to see a substantially magnified image of a sample. The microscope includes a barrel having a hollow tubular interior and first and second ends. An objective lens is coupled to the first end of the barrel and is positionable in close proximity to the sample. An eyepiece forms a fluid-filled chamber and includes an optically transparent window which is positionable in alignment with the second end of the barrel. The cornea of one of the viewer's eyes is completely immersed in the fluid within the fluid-filled chamber. The contact of the fluid with the cornea of the viewer's eye effectively eliminates the refractive effect of the cornea/aqueous humor interface of the viewer's eye and permits the microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Inventors
- 👤 M. Linton Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:38
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0012
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
128 words
A wet cornea microscope for enabling a viewer to see a substantially magnified image of a sample, comprising: a. a microscope barrel having a hollow tubular interior and first and second ends; b. an objective lens coupled to the first end of said barrel and positionable in close proximity to the sample; and c. means, including flat, optically transparent, non-refractive window means, positionable in alignment with the second end of said barrel for forming an optically transparent, fluid-filled chamber around the cornea of one of the viewer's eyes; whereby said fluid-filled chamber means effectively eliminates the refractive effect of the cornea aqueous humor interface in the viewer's eye and permits said microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Claim 2
Dependent Claim
128 words
A wet cornea microscope for enabling a viewer to see a substantially magnified image of a sample, comprising: a. a microscope barrel having a hollow tubular interior and first and second ends; b. an objective lens coupled to the first end of said barrel and positionable in close proximity to the sample; and c. means, including flat, optically transparent, non-refractive window means, positionable in alignment with the second end of said barrel for forming an optically transparent, fluid-filled chamber around the cornea of one of the viewer's eyes; whereby said fluid-filled chamber means effectively eliminates the refractive effect of the cornea aqueous humor interface in the viewer's eye and permits said microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Claim 3
Dependent Claim
39 words
The wet cornea microscope of claim 1 wherein the index of refraction of the fluid within said fluid-filled chamber means is substantially equal to the index of refraction of the fluid within the aqueous humor of the viewer's eye.
Claim 4
Dependent Claim
23 words
The wet cornea microscope of claim 2 wherein the fluid within said fluid filled chamber means includes a solution of sugar and water.
Claim 5
Dependent Claim
20 words
The wet cornea microscope of claim 2 wherein the fluid within said fluid filled chamber means includes a saline solution.
Claim 6
Dependent Claim
23 words
The wet cornea microscope of claim 1 wherein said fluid-filled chamber means includes a fluid-filled eyepiece coupled to the face of the viewer.
Claim 7
Dependent Claim
18 words
The wet cornea microscope of claim 5 wherein said fluid-filled eyepiece surrounds a single eye of the viewer.
Claim 8
Dependent Claim
15 words
The wet cornea microscope of claim 1 wherein said objective lens is a positive lens.
Claim 9
Dependent Claim
28 words
The wet cornea microscope of claim 1 further including a second objective lens positioned in alignment with and in proximity to said objective lens within said microscope barrel.
Claim 10
Dependent Claim
21 words
The wet cornea microscope of claim 1 further including a negative lens coupled to the second end of said microscope barrel.
Claim 11
Dependent Claim
21 words
The wet cornea microscope of claim 1 further including a positive lens coupled to the second end of said microscope barrel.
Claim 12
Dependent Claim
60 words
The wet cornea microscope of claim 1 wherein said objective lens forms a water tight seal with the first end of said barrel and comprises said window of said fluid-filled chamber means, wherein the interior of said barrel is filled with fluid, and wherein said fluid-filled chamber means includes a fluid-filled eyepiece coupled to the second end of said barrel.
Claim 13
Dependent Claim
163 words
A wet cornea microscope for enabling the viewer to see a substantially magnified image of a sample comprising: a. a microscope barrel having a hollow tubular interior and first and second ends; b. an objective lens coupled to the first end of said barrel and positionable in close proximity to the sample; c. a fluid-filled eyepiece adapted to contact the face of the viewer, including a flat, optically transparent, non-refractive window, for forming an optically transparent, fluid-filled chamber around the cornea of one of the viewer's eyes, the index of refraction of the fluid within said eyepiece being substantially equal to the index of refraction of the aqueous humor of the viewer's eye; whereby the contact of the fluid within said chamber with the cornea of the viewer's eye effectively eliminates the refractive effect of the cornea/aqueous humor interface in the viewer's eye and permits said microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Claim 14
Dependent Claim
163 words
A wet cornea microscope for enabling the viewer to see a substantially magnified image of a sample comprising: a. a microscope barrel having a hollow tubular interior and first and second ends; b. an objective lens coupled to the first end of said barrel and positionable in close proximity to the sample; c. a fluid-filled eyepiece adapted to contact the face of the viewer, including a flat, optically transparent, non-refractive window, for forming an optically transparent, fluid-filled chamber around the cornea of one of the viewer's eyes, the index of refraction of the fluid within said eyepiece being substantially equal to the index of refraction of the aqueous humor of the viewer's eye; whereby the contact of the fluid within said chamber with the cornea of the viewer's eye effectively eliminates the refractive effect of the cornea/aqueous humor interface in the viewer's eye and permits said microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Claim 15
Dependent Claim
20 words
The wet cornea microscope of claim 12 further including a negative lens coupled to the second end of said barrel.
Claim 16
Dependent Claim
32 words
The wet cornea microscope of claim 12 further including means coupled to said eyepiece and to said viewer for maintaining the eyepiece in a fixed position on the face of the viewer.
Claim 17
Dependent Claim
38 words
The wet cornea microscope of claim 14 wherein said eyepiece maintaining means includes a strap having a first end coupled to one side of said eyepiece and a second end coupled to the other side of said eyepiece.
Claim 18
Dependent Claim
31 words
The wet cornea microscope of claim 12 wherein the second end of said barrel includes a negative lens for causing the light rays traveling through said eyepiece to converge less steeply.
Claim 19
Dependent Claim
14 words
The wet cornea microscope of claim 12 further including means for illuminating said sample.
Claim 20
Dependent Claim
155 words
A wet cornea microscope for enabling a viewer to see a substantially magnified image of a sample, comprising: a. a microscope barrel having a hollow tubular interior and first and second ends; b. an objective lens coupled to the first end of said barrel and positionable in close proximity to the sample; and c. means including an optically transparent window positionable in alignment with the second end of said barrel for forming an optically transparent, fluid-filled chamber around the cornea of one of the viewer's eyes, said fluid-filled chamber means including a hollow tubular barrel having an outer diameter less than the inner diameter of said microscope barrel, said tubular barrel including first and second ends; whereby said fluid-filled chamber means effectively eliminates the refractive effect of the cornea/aqueous humor interface in the viewer's eye and permits said microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Claim 21
Dependent Claim
155 words
A wet cornea microscope for enabling a viewer to see a substantially magnified image of a sample, comprising: a. a microscope barrel having a hollow tubular interior and first and second ends; b. an objective lens coupled to the first end of said barrel and positionable in close proximity to the sample; and c. means including an optically transparent window positionable in alignment with the second end of said barrel for forming an optically transparent, fluid-filled chamber around the cornea of one of the viewer's eyes, said fluid-filled chamber means including a hollow tubular barrel having an outer diameter less than the inner diameter of said microscope barrel, said tubular barrel including first and second ends; whereby said fluid-filled chamber means effectively eliminates the refractive effect of the cornea/aqueous humor interface in the viewer's eye and permits said microscope to form a substantially magnified image of the sample on the retina of the viewer's eye.
Claim 22
Dependent Claim
39 words
The wet cornea microscope of claim 18 wherein the interior of said tubular barrel is filled with a fluid having an index of refraction substantially equal to the index of refraction of the aqueous humor of the viewer's eye.
Claim 23
Dependent Claim
45 words
The wet cornea microscope of claim 18 wherein said optically transparent window is coupled to the first end of said barrel and wherein the second end of said tubular barrel includes a substantially enlarged fluid reservoir for forming a fluid-filled eyepiece for the viewer's eye.
Claim 24
Dependent Claim
19 words
The wet cornea microscope of claim 20 wherein said window is positioned in close proximity to said objective lens.
References Cited (Backward Citations)
US52672A
Cited
US3409349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |