DE1281710B - Device for generating and viewing stereoscopic X-ray silhouettes - Google Patents

Device for generating and viewing stereoscopic X-ray silhouettes

Info

Publication number
DE1281710B
DE1281710B DER44980A DER0044980A DE1281710B DE 1281710 B DE1281710 B DE 1281710B DE R44980 A DER44980 A DE R44980A DE R0044980 A DER0044980 A DE R0044980A DE 1281710 B DE1281710 B DE 1281710B
Authority
DE
Germany
Prior art keywords
ray
ray source
color
generating
switch
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.)
Pending
Application number
DER44980A
Other languages
German (de)
Inventor
Dr-Ing Walter Ruetz
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.)
WALTER RUETZ DR ING
Original Assignee
WALTER RUETZ DR ING
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 WALTER RUETZ DR ING filed Critical WALTER RUETZ DR ING
Priority to DER44980A priority Critical patent/DE1281710B/en
Publication of DE1281710B publication Critical patent/DE1281710B/en
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/022—Stereoscopic imaging
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
    • G01N23/043—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material using fluoroscopic examination, with visual observation or video transmission of fluoroscopic images
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/23—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using wavelength separation, e.g. using anaglyph techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
    • G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
    • G03B42/026—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays for obtaining three-dimensional pictures
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/70—Circuit arrangements for X-ray tubes with more than one anode; Circuit arrangements for apparatus comprising more than one X ray tube or more than one cathode

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Optics & Photonics (AREA)
  • Pathology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Description

Vorrichtung zum Erzeugen und Betrachten von stereoskopischen Röntgenschattenbildern Die Erfindung betrifft eine Einrichtung zum Erzeugen von stereoskopischen Röntgenschattenbildern mittels zweier nebeneinander liegender wechselweise eingeschalteter Röntgenquellen, die Bilder eines zu durchleuchtenden Gegenstandes auf einen Leuchtschirm werfen, zwischen dem und den Augen des Betrachters eine im Takt der Röntgenquelleneinschaltung arbeitende optische Umschaltung liegt, die abwechselnd das linke oder das rechte Auge des Betrachters für die Bilder der einen oder der anderen Röntgenquelle in Verbindung mit einer Brille empfänglich macht.Device for generating and viewing stereoscopic X-ray silhouettes The invention relates to a device for generating stereoscopic X-ray shadow images by means of two adjacent x-ray sources that are switched on alternately, throw the images of an object to be x-rayed onto a fluorescent screen, between the and the eyes of the viewer one in time with the X-ray source switch-on working optical switch, which alternates the left or the right Eye of the beholder for the images from one or the other X-ray source in Making connection with glasses receptive.

Die Vorteile einer räumlichen, also stereoskopischen Betrachtung eines von Röntgenstrahlen durchleuchteten Gegenstandes gegenüber der einfachen, unikularen Schattenbildbetrachtung sind allgemein und hinreichend bekannt. The advantages of spatial, i.e. stereoscopic, viewing an object illuminated by X-rays compared to the simple, unicular shadow image viewing are generally and well known.

In der Fach- und Patentliteratur finden sich mechanische Vorrichtungen zur Trennung der beiden Stereo-Teilbilder durch ein direkt vor den Augen des Betrachters befindliches Blendensystem oder durch eine Kodierung mittels Polarisation oder Färbung am Ort der Bildentstehung und Trennung über eine vom Betrachter zu tragende Polarisations- oder Farbfilterbrille. Mechanical devices can be found in technical and patent literature to separate the two stereo partial images by a directly in front of the viewer's eyes located aperture system or by coding by means of polarization or coloring at the place where the image is created and separated via a polarization pattern to be borne by the viewer or color filter glasses.

Die Polarisation oder Färbung der zeitlich aufeinander folgenden Stereo-Teilbilder wird bei allen bisher vorgeschlagenen Vorrichtungen durch mechanische Systeme zum Verschieben, Oszillieren oder Rotieren von Farb- oder Polarisationsfiltern bewerkstelligt. The polarization or coloring of the chronologically consecutive Stereo partial images is in all previously proposed devices by mechanical Systems for moving, oscillating or rotating color or polarization filters accomplished.

Derartige Systeme arbeiten niemals erschütterungsfrei. Die zu bewegenden Massen erlauben nur niedrige Bildwechsel-Frequenzen, was zum Flimmern des Stereobildes führt. Ein besonderer Nachteil aller mechanischen Systeme ist der große Helligkeitsverlust im System. Bei allen mechanisch-optischen Umschaltern benötigt die Umschaltung von einer Filterfarbe auf die andere bzw. von einer Polarisationsrichtung in die andere, eine Zeitspanne, während der kein Schattenbild auf den Empfangsschirm geworfen werden darf. Diese Umschaltzeitspanne (Dunkelphase) ist häufig länger als die beiden nutzbaren Hellphasen. Such systems never work vibration-free. The ones to move Masses only allow low image change frequencies, which leads to flickering of the stereo image leads. A particular disadvantage of all mechanical systems is the great loss of brightness in the system. With all mechanical-optical switches, you need to switch from one filter color to the other or from one polarization direction to the other, a period of time during which no shadow image is cast on the reception screen allowed. This switching period (dark phase) is often longer than the two that can be used Light phases.

Damit tritt ein erheblicher Helligkeitsverlust ein, der das Bildflimmern physiologisch besonders stark in Erscheinung treten läßt.This results in a considerable loss of brightness, which causes picture flickering physiologically particularly strong in appearance.

Bei der Vorrichtung nach der Erfindung werden diese Nachteile vermieden, indem der optische Umschalter als ein elektronischer Umschalter in Verbindung mit einer Fernsehaufnahme- und (mit zwei Farbkanälen ausgerüsteten) Farbfernsehwiedergabe-Einrichtung ausgebildet ist, derart, daß der Umschal- ter synchron mit der Röntgenquellenumschaltung das von der Aufnahmeeinrichtung aufgenommene Bild abwechselnd auf einen der zwei Farbkanäle der Wiedergabeeinrichtung aufschaltet. Diese Vorrichtung benötigt keine mechanisch bewegten Teile mehr. In the device according to the invention, these disadvantages are avoided, by using the optical switch as an electronic switch in conjunction with a television recording and (equipped with two color channels) color television reproduction device is designed such that the switchover ter synchronously with the X-ray source switching the image recorded by the recording device alternately on one of the two Switches on the color channels of the display device. This device does not require any mechanically moving parts more.

Durch die äußerst kurzzeitige Umschaltung von einer Bildfarbe auf die andere entsteht kein Helligkeitsverlust mehr, wie bei mechanischen Vorrichtungen während der Umschaltperiode.Due to the extremely short-term switching from one image color to the other no longer causes a loss of brightness, as is the case with mechanical devices during the switching period.

Ein Ausführungsbeispiel der Erfindung soll an Hand der Figur erläutert werden. An embodiment of the invention will be explained with reference to the figure will.

In der Figur ist dargestellt, wie eine Fernsehkamera 6 die von den Röntgenquellen 1 und 2 nacheinander auf einen Fluorenszenzschirm (oder Bildverstärkerprimärschirm) 7 geworfenen Schattenbilder aufnimmt und sie über den vom Umschalter 3 gesteuerten Farbfernsehmonitor 4 derart wiedergibt, daß das von der Fernsehkamera während der Einschaltperiode der Röntgenröhre 1 aufgenommene Bild auf einen Farbkanal des Farbfernsehmonitors - beispielsweise rot - während der Einschaltperiode der Röntgenröhre 2 auf einen zweiten Farbkanal - heispielsweise grün/blau - synchron aufgeschaltet wird. Die Betrachtung des Bildschirmes 5 des Farbfernsehmonitors erfolgt mittels einer auf die Bildschirmfarben abgestimmten Farbfilterbrille 8. In the figure it is shown how a television camera 6 that of the X-ray sources 1 and 2 one after the other on a fluorescent screen (or image intensifier primary screen) 7 picks up thrown shadows and uses the one controlled by switch 3 Color television monitor 4 reproduces such that the television camera during the Switch-on period of the X-ray tube 1 recorded image on a color channel of the color television monitor - for example red - during the switch-on period of the X-ray tube 2 on one second color channel - for example green / blue - is switched on synchronously. the Viewing of the screen 5 of the color television monitor takes place by means of a Color filter glasses that match the screen colors 8.

Claims (1)

Patentanspruch: Vorrichtung zum Erzeugen und Betrachten von stereoskopischen Röntgenschattenbildern mittels zweier nebeneinander liegender wechselweise eingeschalteter Röntgenquellen, die Bilder eines zu durchleuchtenden Gegenstandes auf einen Leuchtschirm werfen, zwischen dem und den Augen des Betrachters eine im Takt der Röntgenquelleneinschaltung arbeitende optische Umschaltung liegt, die abwechselnd das linke oder das rechte Auge des Betrachters für die Bilder der einen oder anderen Röntgenquelle mit einer Brille emppfänglich macht, dadurch gekennzeichnet, daß der optische Umschalter als ein elektronischer Umschalter in Verbindung mit einer Fernsehaufnahme- und (mit zwei Farbkanälen ausgerüsteten) Farbfernsehwiedergabe-Einrichtung ausgebildet ist, derart, daß der Umschalter synchron mit der Röntgenquellenumschaltung das von der Aufnahmeeinrichtung aufgenommene Bild abwechselnd auf einen der zwei Farbkanäle der Wiedergabeeinrichtung aufschaltet. Claim: Device for generating and viewing stereoscopic X-ray silhouettes by means of two adjacent ones that are switched on alternately X-ray sources, the images of an object to be x-rayed on a fluorescent screen throw, between the eyes of the beholder and one in time with the X-ray source being switched on working optical switch, which alternates the left or the right eye of the viewer for the images of one or the other X-ray source with glasses makes receptive, characterized in that the optical switch as a Electronic switch in connection with a television recording and (with two Color television display device equipped with color channels is designed in such a way that that the changeover switch synchronizes with the X-ray source switchover from the recording device recorded Image alternately on one of the two color channels of the display device locks in. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 924 540; deutsches Gebrauchsmuster Nr. 1708 708750; USA.-Patentschrift Nr. 2214621; O. Vi erling: »Die Stereoskopie in der Photographie und Kinematographie«, 1965, S. 141; Röntgen-Praxis, Bd. 17. 1964, S. 2. Documents considered: German Patent No. 924 540; German utility model No. 1708 708750; U.S. Patent No. 2214621; O. Vi erling: "Stereoscopy in Photography and Cinematography", 1965, P. 141; Röntgen-Praxis, Vol. 17. 1964, p. 2.
DER44980A 1967-01-04 1967-01-04 Device for generating and viewing stereoscopic X-ray silhouettes Pending DE1281710B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER44980A DE1281710B (en) 1967-01-04 1967-01-04 Device for generating and viewing stereoscopic X-ray silhouettes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER44980A DE1281710B (en) 1967-01-04 1967-01-04 Device for generating and viewing stereoscopic X-ray silhouettes

Publications (1)

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DE1281710B true DE1281710B (en) 1968-10-31

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DER44980A Pending DE1281710B (en) 1967-01-04 1967-01-04 Device for generating and viewing stereoscopic X-ray silhouettes

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564996A1 (en) * 1984-05-25 1985-11-29 Dutilleux Max Accessories for stereoradiography and stereoradioscopy
DE10010724B4 (en) * 1999-03-16 2012-07-26 General Electric Co. Methods and devices for stereo radiography

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214621A (en) * 1940-09-10 Le roy
DE924540C (en) * 1943-09-22 1955-03-03 Robert Dr Janker Method for the stereoscopic reproduction of alternately appearing stereoscopic partial images
DE1708750U (en) * 1951-07-07 1955-10-13 Siemens Reiniger Werke Ag DEVICE FOR THE GENERATION OF STEREOSCOPIC ROENTINE LUMINOUS SCREEN IMAGES.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2214621A (en) * 1940-09-10 Le roy
DE924540C (en) * 1943-09-22 1955-03-03 Robert Dr Janker Method for the stereoscopic reproduction of alternately appearing stereoscopic partial images
DE1708750U (en) * 1951-07-07 1955-10-13 Siemens Reiniger Werke Ag DEVICE FOR THE GENERATION OF STEREOSCOPIC ROENTINE LUMINOUS SCREEN IMAGES.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2564996A1 (en) * 1984-05-25 1985-11-29 Dutilleux Max Accessories for stereoradiography and stereoradioscopy
DE10010724B4 (en) * 1999-03-16 2012-07-26 General Electric Co. Methods and devices for stereo radiography

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