Patent US3752719A successfully refreshed from Google Patents.
Patent US5608472A successfully refreshed from Google Patents.
US5608472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eye imaging system
Assignee: Research Development Foundation
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Filing: 1994-11-17
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Granted: 1997-03-04
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Expires: 2014-11-17
Abstract
Abstract An eye imaging system having a hand held portable image capture unit connected by cable to a housing. The hand held unit includes a light fiber optic for transmitting light to the eye, imaging and focusing optics, and a charge coupled image device. The connecting housing provides an electrical power source, light source and viewing monitor for viewing an image of the eye.
Inventors
- 👤 Bernard C. Szirth
- 👤 Alan L. Murphree
- 👤 Steven E. Lusty
- 👤 James A. Burris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:34
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
143 words
An eye imaging system comprising, a console having an electrical power source, a light source for providing light to the eye, and a viewing monitor for viewing a captured image, a hand held portable image capture unit having a light passageway for transmitting light to an eye from the light source, imaging and focusing optics including a corneal contact lens, a color aberration preventing means, an iris diaphragm, and a chromatic charged coupled image device for receiving light from the eye through the imaging and focusing optics, said light passageway coupled to a concentric light passage adjacent the corneal contact lens for illuminating the eye through a cornea, and a connecting cable between the console and the image capture unit having a control line for supplying and receiving information between the console and the capture unit, and an electric cable for supplying power.
Claim 2
Dependent Claim
143 words
An eye imaging system comprising, a console having an electrical power source, a light source for providing light to the eye, and a viewing monitor for viewing a captured image, a hand held portable image capture unit having a light passageway for transmitting light to an eye from the light source, imaging and focusing optics including a corneal contact lens, a color aberration preventing means, an iris diaphragm, and a chromatic charged coupled image device for receiving light from the eye through the imaging and focusing optics, said light passageway coupled to a concentric light passage adjacent the corneal contact lens for illuminating the eye through a cornea, and a connecting cable between the console and the image capture unit having a control line for supplying and receiving information between the console and the capture unit, and an electric cable for supplying power.
Claim 3
Dependent Claim
19 words
The system of claim 1 wherein the concentric light passage converges toward the axis of said corneal contact lens.
Claim 4
Dependent Claim
33 words
The system of claim 1 wherein the concentric light passage includes two concentric light passages, first and second light passages, wherein said second concentric light passage is concentric with said first light passage.
Claim 5
Dependent Claim
33 words
The system of claim 1, wherein the concentric light passage is formed by fanning out fiber optic fibers from the light source and ends of the fibers form a continuous 360° light source.
Claim 6
Dependent Claim
35 words
The system of claim 1 wherein the aberration preventing lens means includes two sets of triplet lenses, and said two sets of triplet lenses receive separate colors and blend said colors to one focal point.
Claim 7
Dependent Claim
39 words
The system of claim 1 wherein the imaging and focusing optics include a removable corneal contact lens, a condensing lens and a primary lens, and further include a Goldman type lens for attachment to the portable image capture unit.
Claim 8
Dependent Claim
28 words
The system of claim 1 including a changeable lens in the imaging and focusing optics for providing a 15° to 150° view of an interior of the eye.
Claim 9
Dependent Claim
16 words
The system of claim 1 wherein the light source in the console includes a tungsten lamp.
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) | 2000-03-03 | 2000-09-02 | 2001-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-03 | 2004-09-02 | 2005-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-03 | 2008-09-02 | 2009-03-04 | $7700.00 | Window Closed / Lapsed |