US3881104A - Storing optical relay for converting x-ray images which comprises an electro-optic material - Google Patents

Storing optical relay for converting x-ray images which comprises an electro-optic material Download PDF

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Publication number
US3881104A
US3881104A US382441A US38244173A US3881104A US 3881104 A US3881104 A US 3881104A US 382441 A US382441 A US 382441A US 38244173 A US38244173 A US 38244173A US 3881104 A US3881104 A US 3881104A
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US
United States
Prior art keywords
rays
transparent
panel
radiation
arrangement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US382441A
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English (en)
Inventor
Jacques Donjon
Michel Grenot
Jean-Pierre Hazen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Philips Corp
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US Philips Corp
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Filing date
Publication date
Application filed by US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3881104A publication Critical patent/US3881104A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/0338—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect structurally associated with a photoconductive layer or having photo-refractive properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2231/00—Cathode ray tubes or electron beam tubes
    • H01J2231/50—Imaging and conversion tubes
    • H01J2231/50005—Imaging and conversion tubes characterised by form of illumination
    • H01J2231/5001—Photons
    • H01J2231/50031—High energy photons
    • H01J2231/50036—X-rays

Definitions

  • ABSTRACT The invention relates to an arrangement for convert- [30] Foreign Application Priority a ing X-ray images into images of a given spectrum.
  • the Au 7 France 72 77914 X-ray image which is projected on a photosensitive layer and converted into an image of electric charges which are stored in the vicinity of an electro-optic g or ifigi fibi i625 panel, modulates the birefringence of the latter.
  • One of the objects of the invention is to also ensure this role of relay in the region of the spectrum which corresponds to the X-rays.
  • Another feature of the invention consists in that the conversion of the X-rays into light rays may be effected via a first conversion of X-rays into electrons by means of a phosphor and a photocathode.
  • the apparatus then is suitable for the observation of large-size images reduced to the size of the electro-optical target by the addition of an electron-optical system.
  • FIG. 3 shows another embodiment with a phosphor in a second position
  • FIG. 5 shows an embodiment which comprises a first conversion of X-rays into electrons and a second conversion of electrons into light
  • the X-ray detector tube which has the same structure as in FIG. 6, is terminated downstream of the electron-optical system by a glass fiber slab 9 which serves as an exit window for the light emitted by the phosphor 10.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Measurement Of Radiation (AREA)
  • Conversion Of X-Rays Into Visible Images (AREA)
US382441A 1972-08-02 1973-07-25 Storing optical relay for converting x-ray images which comprises an electro-optic material Expired - Lifetime US3881104A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7227914A FR2195062B1 (enrdf_load_stackoverflow) 1972-08-02 1972-08-02

Publications (1)

Publication Number Publication Date
US3881104A true US3881104A (en) 1975-04-29

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ID=9102772

Family Applications (1)

Application Number Title Priority Date Filing Date
US382441A Expired - Lifetime US3881104A (en) 1972-08-02 1973-07-25 Storing optical relay for converting x-ray images which comprises an electro-optic material

Country Status (5)

Country Link
US (1) US3881104A (enrdf_load_stackoverflow)
JP (1) JPS4946864A (enrdf_load_stackoverflow)
FR (1) FR2195062B1 (enrdf_load_stackoverflow)
GB (1) GB1431280A (enrdf_load_stackoverflow)
IT (1) IT991909B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022564A1 (en) * 1979-07-11 1981-01-21 Fuji Photo Film Co., Ltd. Method of and apparatus for obtaining a radiation image by use of a stimulable phosphor
US4465927A (en) * 1981-02-12 1984-08-14 English Electric Valve Company Limited Photosensitive tube with light bias
WO1985005527A1 (en) * 1984-05-14 1985-12-05 Sol Nudelman Large capacity, large area video imaging sensors
US4704635A (en) * 1984-12-18 1987-11-03 Sol Nudelman Large capacity, large area video imaging sensor
US6052432A (en) * 1997-01-31 2000-04-18 Sunnybrook Hospital Method of generating multiple x-ray images of an object from a single x-ray exposure
DE19916708C1 (de) * 1999-04-14 2000-07-13 Karsten Buse Röntgenbild-Erfassungssystem
US6573640B1 (en) * 1997-11-19 2003-06-03 Hamamatsu Photonics K.K. Photodetecting device and image sensing apparatus using the same
US6804013B2 (en) * 2000-01-26 2004-10-12 Krypton Electronic Engineering N.V. Optical element
US20090058259A1 (en) * 2005-04-05 2009-03-05 St. Clair Intellectual Property Consultants, Inc. Quenched phosphor displays with pixel amplification

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0724704B2 (ja) * 1989-12-08 1995-03-22 リールマシン株式会社 遊技機の球払出機構
JP2545343B2 (ja) * 1995-07-20 1996-10-16 株式会社三洋物産 パチンコ遊技機

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015731A (en) * 1954-08-21 1962-01-02 Philips Corp Radiation indicating device
US3383514A (en) * 1965-01-26 1968-05-14 Rauland Corp Multi-stage image converter with both magnifying and minifying stages
US3749920A (en) * 1971-12-03 1973-07-31 E Sheldon System for x-ray image intensification

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706790A (en) * 1950-10-18 1955-04-19 Gen Electric X-ray detection
FR1124750A (fr) * 1955-04-19 1956-10-16 Dispositif de télévision des images radioscopiques
GB1198597A (en) * 1968-03-14 1970-07-15 Siemens Ag Improvements in or relating to Screens Capable of Fluorescing.
DE6903363U (de) * 1968-04-01 1971-07-08 Siemens Ag Vorrichtung zur beobachtung des fluoreszenzschirmes eines korpuskularstrahlgeraetes.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3015731A (en) * 1954-08-21 1962-01-02 Philips Corp Radiation indicating device
US3383514A (en) * 1965-01-26 1968-05-14 Rauland Corp Multi-stage image converter with both magnifying and minifying stages
US3749920A (en) * 1971-12-03 1973-07-31 E Sheldon System for x-ray image intensification

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022564A1 (en) * 1979-07-11 1981-01-21 Fuji Photo Film Co., Ltd. Method of and apparatus for obtaining a radiation image by use of a stimulable phosphor
US4465927A (en) * 1981-02-12 1984-08-14 English Electric Valve Company Limited Photosensitive tube with light bias
WO1985005527A1 (en) * 1984-05-14 1985-12-05 Sol Nudelman Large capacity, large area video imaging sensors
US4704635A (en) * 1984-12-18 1987-11-03 Sol Nudelman Large capacity, large area video imaging sensor
US6052432A (en) * 1997-01-31 2000-04-18 Sunnybrook Hospital Method of generating multiple x-ray images of an object from a single x-ray exposure
US6573640B1 (en) * 1997-11-19 2003-06-03 Hamamatsu Photonics K.K. Photodetecting device and image sensing apparatus using the same
DE19916708C1 (de) * 1999-04-14 2000-07-13 Karsten Buse Röntgenbild-Erfassungssystem
US6804013B2 (en) * 2000-01-26 2004-10-12 Krypton Electronic Engineering N.V. Optical element
US20090058259A1 (en) * 2005-04-05 2009-03-05 St. Clair Intellectual Property Consultants, Inc. Quenched phosphor displays with pixel amplification

Also Published As

Publication number Publication date
IT991909B (it) 1975-08-30
FR2195062B1 (enrdf_load_stackoverflow) 1976-03-12
GB1431280A (en) 1976-04-07
FR2195062A1 (enrdf_load_stackoverflow) 1974-03-01
JPS4946864A (enrdf_load_stackoverflow) 1974-05-07

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