US5554850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray scintillating plate utilizing angled fiber optic rods
Assignee: Carestream Health Inc
•
Filing: 1994-11-04
•
Granted: 1996-09-10
•
Expires: 2014-11-04
Abstract
Abstract A direct digital x-ray imaging system includes a fiber optic scintillating plate in which aliasing and x-ray transmission problems are minimized.
Inventors
- 👤 Shahram Hejazi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:43
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/201; G01T1/2018; G01T1/20183; G01T1/20185; G01T1/20187
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
X-ray imaging apparatus comprising: an x-ray scintillating plate having a first face upon which is projected an x-ray image; a bundle of fiber optic rods having first and second ends, wherein said first ends are coupled with said first face of said plate, each of said fiber optic rods including a core of optical material which emits light when exposed to x-rays and cladding surrounding said core; and a second face coupled to said second ends of said rods for emitting a light x-ray image produced by said bundle of fiber optic rods in response to a projected x-ray image; wherein said bundle of fiber optic rods are oriented at such an angle other than 90° relative to an x-ray image projected thereon, that substantially all x-rays of said x-ray image are absorbed by said rod cores before they are transmitted to said second face.
Claim 2
Dependent Claim
145 words
X-ray imaging apparatus comprising: an x-ray scintillating plate having a first face upon which is projected an x-ray image; a bundle of fiber optic rods having first and second ends, wherein said first ends are coupled with said first face of said plate, each of said fiber optic rods including a core of optical material which emits light when exposed to x-rays and cladding surrounding said core; and a second face coupled to said second ends of said rods for emitting a light x-ray image produced by said bundle of fiber optic rods in response to a projected x-ray image; wherein said bundle of fiber optic rods are oriented at such an angle other than 90° relative to an x-ray image projected thereon, that substantially all x-rays of said x-ray image are absorbed by said rod cores before they are transmitted to said second face.
Claim 3
Dependent Claim
21 words
The x-ray imaging apparatus of claim 1 including a photodetector for converting said light x-ray image into an x-ray image signal.
Claim 4
Dependent Claim
65 words
The x-ray imaging apparatus of claim 1 wherein said first face of said scintillating plate is parallel to the plane of said x-ray image which extends in X and Y mutually perpendicular directions, and wherein said fiber optic rods are oriented at an angle, other than normal, with respect to both said X direction and said Y direction of said plane of said x-ray image.
References Cited (Backward Citations)
US4247165A
Cited
US4586781A
Cited
US4593400A
Cited
US4914349A
Cited
US4910405A
Cited
US5150394A
Cited
US5308986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-10 | 2000-03-11 | 2000-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-10 | 2004-03-11 | 2004-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-10 | 2008-03-11 | 2008-09-10 | $7700.00 | Window Closed / Lapsed |