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US5834782A Expired / Lapsed US ⏱️ 0.0 years remaining

Large area image detector

Assignee: DVI FINANCIAL SERVICE Inc
•
Filing: 1996-11-20
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Granted: 1998-11-10
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Expires: 2016-11-20
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Abstract

Abstract A large area image detecting apparatus made by arranging a plurality of small area sensors in a stepped arrangement so that the inactive regions of the small sensors are covered by a active area of another small sensor. The apparatus may be used to detect light or radiation. A fiber optic assembly may be used to guide light from a flat scintillator plate onto the small sensors.

Inventors

  • 👤 David B. Schick
  • 👤 Daniel A. Neugroschl
  • 👤 David B. Plass
  • 👤 Jonathan Singer

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:37
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/40; H04N25/41

Claims Analysis

Total Claims: 50
Claim 1
Independent Claim 134 words
A radiation detection apparatus for detecting radiation arriving from in front of the apparatus, comprising: a first set of radiation sensors arranged in a first plane, on a first side of a reference plane; a second set of radiation sensors arranged in a second plane, on a second side of the reference plane; and a third set of radiation sensors arranged in a third plane, in front of the first plane, on the first side of the reference plane, wherein each of the sensors has an active area at a first end of the sensor, and an inactive region, and the first end is oriented towards the reference plane, and wherein the active area of the third set of sensors is disposed in front of the inactive region of the first set of sensors.
Claim 2
Dependent Claim 134 words
A radiation detection apparatus for detecting radiation arriving from in front of the apparatus, comprising: a first set of radiation sensors arranged in a first plane, on a first side of a reference plane; a second set of radiation sensors arranged in a second plane, on a second side of the reference plane; and a third set of radiation sensors arranged in a third plane, in front of the first plane, on the first side of the reference plane, wherein each of the sensors has an active area at a first end of the sensor, and an inactive region, and the first end is oriented towards the reference plane, and wherein the active area of the third set of sensors is disposed in front of the inactive region of the first set of sensors.
Claim 3
Dependent Claim 27 words
The apparatus according to claim 1, wherein the active area of each of the sensors extends close to a plurality of edges of each of the sensors.
Claim 4
Dependent Claim 29 words
The apparatus according to claim 2, wherein the active area of a sensor on a given plane abuts an active area of a neighboring sensor on the given plane.
Claim 5
Dependent Claim 22 words
The apparatus according to claim 3, wherein the set of radiation sensors arranged in the first plane comprises at least three sensors.
Claim 6
Dependent Claim 24 words
The apparatus according to claim 3, wherein the first end of each of said radiation sensors is shaped like the end of a rectangle.
Claim 7
Dependent Claim 23 words
The apparatus according to claim 3, wherein the first end of each of said radiation sensors is shaped like the end of parallelogram.
Claim 8
Dependent Claim 57 words
The apparatus according to claim 1, further comprising a fourth set of radiation sensors arranged in a fourth plane, in front of the second plane, on the second side of the reference plane, wherein the active area of the fourth set of sensors is disposed in front of the inactive region of the second set of sensors.
Claim 9
Dependent Claim 57 words
The apparatus according to claim 7, further comprising a fifth set of radiation sensors arranged in a fifth plane, in front of the third plane, on the first side of the reference plane, wherein the active area of the fifth set of sensors is disposed in front of the inactive region of the third set of sensors.
Claim 10
Dependent Claim 20 words
The apparatus according to claim 1, wherein the first plane, the second plane, and the third plane are substantially parallel.
Claim 11
Dependent Claim 17 words
The apparatus according to claim 9, wherein the reference plane is substantially perpendicular to the first plane.
Claim 12
Dependent Claim 17 words
The apparatus according to claim 1, wherein the first plane is the same as the second plane.
Claim 13
Dependent Claim 24 words
The apparatus according to claim 1, wherein each radiation sensor comprises one of a CCD, a photodiode array, and a CMOS active pixel sensor.
Claim 14
Dependent Claim 13 words
The apparatus according to claim 1, wherein said sensors are sensitive to x-rays.
Claim 15
Dependent Claim 26 words
The apparatus according to claim 13, further comprising a radiation transparent assembly to transmit radiation from a front surface of said transparent assembly to said sensors.
Claim 16
Dependent Claim 42 words
The apparatus according to claim 14, wherein the active areas of said sensors are mounted facing a plurality of rear surfaces of said transparent assembly and the inactive regions of said sensors are located beyond the rear surfaces of said transparent assembly.
Claim 17
Dependent Claim 14 words
The apparatus according to claim 15, wherein said transparent assembly is made of plastic.
Claim 18
Dependent Claim 24 words
The apparatus according to claim 13, wherein each of said sensors comprises a scintillator screen disposed on the face of an optical image sensor.
Claim 19
Dependent Claim 13 words
The apparatus according to claim 1, wherein said sensors are sensitive to light.
Claim 20
Dependent Claim 27 words
The apparatus according to claim 18, further comprising a fiber optic assembly to transmit light from a front surface of said fiber optic assembly to said sensors.
Claim 21
Dependent Claim 20 words
The apparatus according to claim 19, further comprising a scintillator disposed on the front surface of said fiber optic assembly.
Claim 22
Dependent Claim 44 words
The apparatus according to claim 19, wherein the active areas of said sensors are mounted facing a plurality of rear surfaces of said fiber optic assembly and the inactive regions of said sensors are located beyond the rear surfaces of said fiber optic assembly.
Claim 23
Dependent Claim 31 words
The apparatus according to claim 20, further comprising a film holder capable of supporting a photographic x-ray film, and wherein the front surface of the fiber optic assembly is substantially flat.
Claim 24
Dependent Claim 18 words
The apparatus according to claim 1, further comprising a film holder capable of supporting a photographic x-ray film.
Claim 25
Dependent Claim 12 words
The apparatus according to claim 1, further comprising an image processing system.
Claim 26
Dependent Claim 185 words
A radiation detection apparatus for detecting incident radiation arriving from in front of the apparatus comprising: a first set of radiation sensors arranged in a first plane substantially perpendicular to a path followed by the incident radiation, each of the radiation sensors of the first set having an active area and an inactive region; a second set of radiation sensors arranged in a second plane substantially perpendicular to the path, each of the radiation sensors of the second set having an active area and an inactive region, wherein the active areas of at least some of the radiation sensors of the second set are disposed in front of at least some of the inactive regions of sensors of the first set; and a third set of radiation sensors arranged in a third plane substantially perpendicular to the path, each of the radiation sensors of the third set having an active area, wherein the active areas of at least some of the radiation sensors of the third set are disposed in front of at least some of the inactive regions of sensors of the second set.
Claim 27
Dependent Claim 185 words
A radiation detection apparatus for detecting incident radiation arriving from in front of the apparatus comprising: a first set of radiation sensors arranged in a first plane substantially perpendicular to a path followed by the incident radiation, each of the radiation sensors of the first set having an active area and an inactive region; a second set of radiation sensors arranged in a second plane substantially perpendicular to the path, each of the radiation sensors of the second set having an active area and an inactive region, wherein the active areas of at least some of the radiation sensors of the second set are disposed in front of at least some of the inactive regions of sensors of the first set; and a third set of radiation sensors arranged in a third plane substantially perpendicular to the path, each of the radiation sensors of the third set having an active area, wherein the active areas of at least some of the radiation sensors of the third set are disposed in front of at least some of the inactive regions of sensors of the second set.
Claim 28
Dependent Claim 27 words
The apparatus according to claim 25, wherein the active area of each of the sensors extends close to a plurality of edges of each of the sensors.
Claim 29
Dependent Claim 29 words
The apparatus according to claim 26, wherein the active area of a sensor on a given plane abuts an active area of a neighboring sensor on the given plane.
Claim 30
Dependent Claim 22 words
The apparatus according to claim 27, wherein the set of radiation sensors arranged in the first plane comprises at least three sensors.
Claim 31
Dependent Claim 24 words
The apparatus according to claim 27, wherein the first end of each of said radiation sensors is shaped like the end of a rectangle.
Claim 32
Dependent Claim 23 words
The apparatus according to claim 27, wherein the first end of each of said radiation sensors is shaped like the end of parallelogram.
Claim 33
Dependent Claim 24 words
The apparatus according to claim 25, wherein each radiation sensor comprises one of a CCD, a photodiode array, and a CMOS active pixel sensor.
Claim 34
Dependent Claim 13 words
The apparatus according to claim 25, wherein said sensors are sensitive to x-rays.
Claim 35
Dependent Claim 26 words
The apparatus according to claim 32, further comprising a radiation transparent assembly to transmit radiation from a front surface of said transparent assembly to said sensors.
Claim 36
Dependent Claim 42 words
The apparatus according to claim 33, wherein the active areas of said sensors are mounted facing a plurality of rear surfaces of said transparent assembly and the inactive regions of said sensors are located beyond the rear surfaces of said transparent assembly.
Claim 37
Dependent Claim 14 words
The apparatus according to claim 34, wherein said transparent assembly is made of plastic.
Claim 38
Dependent Claim 24 words
The apparatus according to claim 32, wherein each of said sensors comprises a scintillator screen disposed on the face of an optical image sensor.
Claim 39
Dependent Claim 13 words
The apparatus according to claim 25, wherein said sensors are sensitive to light.
Claim 40
Dependent Claim 27 words
The apparatus according to claim 37, further comprising a fiber optic assembly to transmit light from a front surface of said fiber optic assembly to said sensors.
Claim 41
Dependent Claim 20 words
The apparatus according to claim 38, further comprising a scintillator disposed on the front surface of said fiber optic assembly.
Claim 42
Dependent Claim 44 words
The apparatus according to claim 38, wherein the active areas of said sensors are mounted facing a plurality of rear surfaces of said fiber optic assembly and the inactive regions of said sensors are located beyond the rear surfaces of said fiber optic assembly.
Claim 43
Dependent Claim 31 words
The apparatus according to claim 39, further comprising a film holder capable of supporting a photographic x-ray film, and wherein the front surface of the fiber optic assembly is substantially flat.
Claim 44
Dependent Claim 18 words
The apparatus according to claim 25, further comprising a film holder capable of supporting a photographic x-ray film.
Claim 45
Dependent Claim 12 words
The apparatus according to claim 25, further comprising an image processing system.
Claim 46
Dependent Claim 148 words
A radiation detecting apparatus comprising: a fiber optic assembly having an input side, an stepped output side with a plurality of rises, and optical fibers that transmit light from the input side to the rises of the output side; and a plurality of radiation sensors, each sensor having a first end with a rectangular active area extending close to the edges of the first end, and a inactive region, wherein the active areas of said sensors are located adjacent to said fiber optic assembly, facing the rises, and the inactive region is located above the rises, so that light passing through the fiber optic assembly strikes the active area of said sensors and does not strike the inactive region, and wherein at least two of said sensors are mounted on a given rise butted up next to each other to form a substantially continuous array of active areas.
Claim 47
Dependent Claim 148 words
A radiation detecting apparatus comprising: a fiber optic assembly having an input side, an stepped output side with a plurality of rises, and optical fibers that transmit light from the input side to the rises of the output side; and a plurality of radiation sensors, each sensor having a first end with a rectangular active area extending close to the edges of the first end, and a inactive region, wherein the active areas of said sensors are located adjacent to said fiber optic assembly, facing the rises, and the inactive region is located above the rises, so that light passing through the fiber optic assembly strikes the active area of said sensors and does not strike the inactive region, and wherein at least two of said sensors are mounted on a given rise butted up next to each other to form a substantially continuous array of active areas.
Claim 48
Dependent Claim 20 words
The apparatus according to claim 44, further comprising a scintillator disposed on the front surface of said fiber optic assembly.
Claim 49
Dependent Claim 18 words
The apparatus according to claim 44, further comprising a film holder capable of supporting a photographic x-ray film.
Claim 50
Dependent Claim 12 words
The apparatus according to claim 44, further comprising an image processing system.

References Cited (Backward Citations)

US4467342A Cited
US5043582A Cited
US5381013A Cited
US5464984A Cited
US4755681A Cited
US4999484A Cited
US5420452A Cited
US5248885A Cited
US5105087A Cited
US5420429A Cited
US5436458A Cited
US5572034A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2001-11-09 2002-05-11 2002-11-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2005-11-09 2006-05-11 2006-11-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2009-11-09 2010-05-11 2010-11-10 $7700.00 Window Closed / Lapsed

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