FR2341172A1 - Visualisation de radiogrammes a l'aide de cristaux liquides - Google Patents

Visualisation de radiogrammes a l'aide de cristaux liquides

Info

Publication number
FR2341172A1
FR2341172A1 FR7604227A FR7604227A FR2341172A1 FR 2341172 A1 FR2341172 A1 FR 2341172A1 FR 7604227 A FR7604227 A FR 7604227A FR 7604227 A FR7604227 A FR 7604227A FR 2341172 A1 FR2341172 A1 FR 2341172A1
Authority
FR
France
Prior art keywords
radiograms
display
liquid crystals
crystals
liquid
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.)
Granted
Application number
FR7604227A
Other languages
English (en)
French (fr)
Other versions
FR2341172B1 (https=
Inventor
Frank V Allan
John B Fenn Jr
Murray S Welkowsky
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.)
Xonics Inc
Original Assignee
Xonics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xonics Inc filed Critical Xonics Inc
Publication of FR2341172A1 publication Critical patent/FR2341172A1/fr
Application granted granted Critical
Publication of FR2341172B1 publication Critical patent/FR2341172B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2921—Static instruments for imaging the distribution of radioactivity in one or two dimensions; Radio-isotope cameras
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—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 liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
    • 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 
    • G02F1/13—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 liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/054—Apparatus for electrographic processes using a charge pattern using X-rays, e.g. electroradiography
    • G03G15/0545—Ionography, i.e. X-rays induced liquid or gas discharge

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Liquid Crystal (AREA)
FR7604227A 1976-02-16 1976-02-16 Visualisation de radiogrammes a l'aide de cristaux liquides Granted FR2341172A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB602076A GB1509823A (en) 1976-02-16 1976-02-16 Liquid crystal imaging of radiograms

Publications (2)

Publication Number Publication Date
FR2341172A1 true FR2341172A1 (fr) 1977-09-09
FR2341172B1 FR2341172B1 (https=) 1979-08-31

Family

ID=9806980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7604227A Granted FR2341172A1 (fr) 1976-02-16 1976-02-16 Visualisation de radiogrammes a l'aide de cristaux liquides

Country Status (4)

Country Link
BE (1) BE838600A (https=)
DE (1) DE2606543A1 (https=)
FR (1) FR2341172A1 (https=)
GB (1) GB1509823A (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794296A (en) * 1986-03-18 1988-12-27 Optron System, Inc. Charge transfer signal processor

Also Published As

Publication number Publication date
BE838600A (fr) 1976-06-16
GB1509823A (en) 1978-05-04
DE2606543A1 (de) 1977-08-18
FR2341172B1 (https=) 1979-08-31

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Legal Events

Date Code Title Description
ST Notification of lapse