DE603326C - Device for the illumination of X-ray images - Google Patents
Device for the illumination of X-ray imagesInfo
- Publication number
- DE603326C DE603326C DEC46970D DEC0046970D DE603326C DE 603326 C DE603326 C DE 603326C DE C46970 D DEC46970 D DE C46970D DE C0046970 D DEC0046970 D DE C0046970D DE 603326 C DE603326 C DE 603326C
- Authority
- DE
- Germany
- Prior art keywords
- ray images
- illumination
- ray
- paper
- light
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
- G02B27/024—Viewing apparatus comprising a light source, e.g. for viewing photographic slides, X-ray transparancies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
Einrichtung zur Beleuchtung von Röntgenbildern Aus wirtschaftlichen Gründen ist man dazu übergegangen, Röntgenaufnahmen außer auf Platten und Filmen auch auf hochempfindlichem Papier zu machen. Es hat sich aber dabei herausgestellt, daß häufig gerade die für die Dagnose wichtigen Einzelheiten des Röntgenbildes dem Betrachter ,entgehen, so daß eine auf Röntgenpapier gemachte Aufnahme einer Filmaufnahme nicht von vornherein gleichwertig ist und für viele Untersuclhungen abgelehnt weiden mußte.Device for illuminating X-ray images For economic reasons For reasons, one has switched to X-rays except on plates and films can also be made on highly sensitive paper. But it turned out that it is often precisely the details of the X-ray image that are important for the diagnosis Viewer, escaping, so that a recording of a film made on X-ray paper is not equivalent from the outset and has been rejected for many investigations had to.
Der oben angegebene Mangel ist nicht im Röntgenpapier an sich begründet, sondern in 'der Betrachtung der auf Röntgenpapier gemachten Aufnahmen, die ja im auffallenden Licht geschehen muß. Dabei überstrahlt der von der spiegelnden Oberfläche des Papiers ausgehende Glanz die kleinen Helligkeits@ unterschiede vor allem in den tiefen Schwärt zungen des Röntgenhildes vollkommen, so daß sie vom Beobachter nicht festgestellt werden können. Der oben geschilderte übelstand wird dadurch beseitigt, daß man Licht unter dem Polarisationswinkel auf die Bildoberfläche auffallen läßt, das nach der Erfindung geradlinig polarisiert ist und in einer solchen Ebene schwingt, daß es von der spiegelnden Bildoberfläche nicht reflektiert wird, während es von der unter der Oberfläche liegenden lichtempfindlichen Schicht nach allen Richtungen hin voll ausgestrahlt wird. Gegenüber einer Beleuchtung mit gewöhnlichem Licht wird erreicht, daß man das Bild von einer ganz Ieliebigen Stelle aus betrachten kann, ohne durch von der Bildoberfläche zurückgeworfene Strahlen geblendet zu werden. Zwar ist @es bekannt, diese reflektierten Strahlen durch einen Analysator auszulöschen. Die Betrachtung des Bildes durch einen Analysator hat aber den Nachteil, daß man nicht mit freiem Auge und nur kleine Ausschnitte des Bildes sehen kann, die für die Diagnose nicht ausreichen, da im allgemeinen nur aus dem Gesamteindruck des Röntgenbildes Schlüsse auf erkrankte Stellen gezogen werden können.The above-mentioned defect is not justified in the X-ray paper itself, but rather in the observation of the recordings made on X-ray paper, which in the incident light must happen. It is outshone by the reflective surface the shine emanating from the paper, the small differences in brightness, especially in the deep blackened tongues of the Röntgenhildes completely, so that they can be seen by the observer cannot be determined. The evil described above will be eliminated by that light is allowed to strike the picture surface at the angle of polarization, which is polarized in a straight line according to the invention and oscillates in such a plane, that it is not reflected by the specular picture surface while it is of of the photosensitive layer lying below the surface in all directions is fully broadcast. Compared to lighting with ordinary light achieves that the picture can be viewed from any point, without being dazzled by rays reflected back from the picture surface. It is known to extinguish these reflected rays using an analyzer. Viewing the image through an analyzer has the disadvantage that one not with the naked eye and can only see small sections of the image that are for the diagnosis is not sufficient, as it is generally only based on the overall impression of the Conclusions about diseased areas can be drawn from the X-ray image.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC46970D DE603326C (en) | 1932-09-29 | 1932-09-29 | Device for the illumination of X-ray images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC46970D DE603326C (en) | 1932-09-29 | 1932-09-29 | Device for the illumination of X-ray images |
Publications (1)
Publication Number | Publication Date |
---|---|
DE603326C true DE603326C (en) | 1934-09-27 |
Family
ID=7026465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC46970D Expired DE603326C (en) | 1932-09-29 | 1932-09-29 | Device for the illumination of X-ray images |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE603326C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2432867A (en) * | 1947-12-16 | Polarizer and polarizing lamp | ||
US2519387A (en) * | 1950-08-22 | Glake free lighting device |
-
1932
- 1932-09-29 DE DEC46970D patent/DE603326C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2432867A (en) * | 1947-12-16 | Polarizer and polarizing lamp | ||
US2519387A (en) * | 1950-08-22 | Glake free lighting device |
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