DE926342C - Grid for X-ray space recordings - Google Patents

Grid for X-ray space recordings

Info

Publication number
DE926342C
DE926342C DEC1623D DEC0001623D DE926342C DE 926342 C DE926342 C DE 926342C DE C1623 D DEC1623 D DE C1623D DE C0001623 D DEC0001623 D DE C0001623D DE 926342 C DE926342 C DE 926342C
Authority
DE
Germany
Prior art keywords
grid
focal
recordings
image
ray space
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
Application number
DEC1623D
Other languages
German (de)
Inventor
Adolf Dr Med Czech
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEC1623D priority Critical patent/DE926342C/en
Application granted granted Critical
Publication of DE926342C publication Critical patent/DE926342C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
    • G21K1/025—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators using multiple collimators, e.g. Bucky screens; other devices for eliminating undesired or dispersed radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Description

Die Erfindung betrifft eine Verbesserung und Weiterbildung der in dem Patent 924493 geschützten Erfindung.The invention relates to an improvement and further development of the in invention protected by patent 924493.

Dort wurde zur Vermeidung der Erschütterung>en, die bei. der ruckweisen Bewegung eines hin und her gehenden Rasters entstehen, ein kreisförmiger Raster geschaffen, dessen Lamellen Halbkreise bilden, die in den beiden Rasterhälften um eine Lamellenbreite so gegeneinander veirsetzt sind, daß die Lamellen in dem einen Halbteil .des Rasters bei einer Drehung des Rastens um z8o° den Zwischenräumen des anderen Halbteils entsprechen.There was to avoid the vibrations that occur with. the jerky Movement of a grid going back and forth emerges, a circular grid created, the lamellae form semicircles, which in the two halves of the grid around a lamellar width are mutually offset so that the lamellas in one Half part of the raster when the ratchet is rotated by z8o ° the spaces between the correspond to the other half part.

Die völlige Übereinstimmung der zwei Teilbilder von jedem Brennfleck aus wind nun nach vorliegender Erfindung dadurch erreicht, daß Form und Breite der Lamellen und Zwischenräume sich vom Mittelpunkt des. Rasterkneisesi. nach der Peripherie zu so verändert, daß die Projektiönien der beiden Brennpunkte aus festgesetzten Entfernungsmaßen des Focus-Filmabstandes und des Abstandes der Brennflecke voneinander zu Zeichnungen auf dem Film führen, bei denen der eine Brennfleck sein Bild genau in die Lücken des Bildes des anderen Brennflecks entwirft.The complete correspondence of the two partial images from each focal point from wind is now achieved according to the present invention that the shape and width of the Lamellae and gaps extend from the center of the. Rasterkneisi. towards the periphery so changed that the projections of the two focal points are fixed Distance measurements of the focus-film distance and the distance between the focal spots lead to drawings on the film in which the one focal point is exactly the image into the gaps in the image of the other focal point.

Die Erfindung wird an Hand der Zeichnung an einem Ausführungsbeispiel wie folgt. erläutert: z ist de- um .den Mittelpunkt rotierende Raster, 2 sind die Lamellen des einen Rasterhalbteiles, 3 sind die Lamellen des anderen Rasterhalbteiles, 4 ist der für die Bildwirkung nutzbare Ausschnitt des Rasters.The invention is based on the drawing using an exemplary embodiment as follows. explained: z is therefore .the center rotating grid, 2 are the Slats of one half of the grid, 3 are the slats of the other half of the grid, 4 is the section of the grid that can be used for the image effect.

Erfindungsgemäß isst nun eine solche Form für die einzelnen Lamellen vorgesehen, die durch Ausschnitte au:sschrägen Kreiskegeln gebildet werden, die durch Leitstrahlen aus den beiden Brennpunkten 5 und 6 an die Lamellenhalbkreise 2 und 3 entstehen. Dabei ist je einem Brennpunkt 5 oder 6 je eine Lamellemhälfte 2 oder 3 So zugeordnet, daß jeder Brennfleck die für ihn bestimmte Rasterhälfte belichtet.According to the invention, such a shape now eats for the individual slats provided, which are formed by cutouts from inclined circular cones, the by means of guide rays from the two focal points 5 and 6 to the lamella semicircles 2 and 3 are created. There is one lamella half for each focal point 5 or 6 2 or 3 so assigned that each focal point has the half of the grid intended for it exposed.

Claims (1)

P$T,NTANSPAUCH: Raster _ für Röntgenraumau.fnahmen nach Patent 912,449h3, dadurch gekennzeichnet, daß Form @ und- Breite der Lamellen und Zwischenräume sich vom Mittelpunkt des Rasterkreises nach der Peripherie zu so verändert, daß die Projektionen der beiden Brennpunkte aus, festgesetzten Entfernungsmaßen des Focus-Filmahstandes und des. Abstandes der Brennflecke. voneinander zu Zeichnungen auf dem Film führen, bei denen der leine Brennfleck sein. Bild genau in die Lücken des Bildes des anderen Brennflecks entwirft.P $ T, NTANSPAUCH: Raster _ for X-ray room images according to patent 912,449h3, characterized in that the shape @ and width of the lamellas and spaces changed from the center of the grid circle to the periphery so that the projections of the two focal points, fixed distance measurements of the focus film stand and the distance between the focal points. lead from each other to drawings on the film, where the leash focal point. Image exactly into the gaps in the other's image Focal spot designs.
DEC1623D 1944-06-17 1944-06-17 Grid for X-ray space recordings Expired DE926342C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC1623D DE926342C (en) 1944-06-17 1944-06-17 Grid for X-ray space recordings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC1623D DE926342C (en) 1944-06-17 1944-06-17 Grid for X-ray space recordings

Publications (1)

Publication Number Publication Date
DE926342C true DE926342C (en) 1955-04-14

Family

ID=7012659

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC1623D Expired DE926342C (en) 1944-06-17 1944-06-17 Grid for X-ray space recordings

Country Status (1)

Country Link
DE (1) DE926342C (en)

Similar Documents

Publication Publication Date Title
DE1292874B (en) Homing device
DE4035145A1 (en) OPTICAL SYSTEM FOR DIVIDING A REAL IMAGE
DE926342C (en) Grid for X-ray space recordings
DE2519961A1 (en) MULTIPLE INFRARED LENS
DE745107C (en) Method of making latent raster records
DE599183C (en) Mirror with several mirrors attached at an angle to one another
DE850079C (en) Optical joint, especially for double telescopes
DE735430C (en) Goniometer arrangement for direction finding purposes
DE581371C (en) Device for graphical representation of any size
DE2833685C2 (en) Focusing screen for photographic cameras
DE604490C (en) lens
DE687495C (en) Arrangement of the individual images in multi-image bitmap images
DE560202C (en) Device for taking natural color images
DE2207710A1 (en) CABLE WITH CHARACTER MARKINGS
DE733799C (en) Device for reducing the scattered rays falling on the image layer during X-ray recordings
DE948701C (en) Electron beam tubes for displaying images
AT225288B (en) Flexible glass element, in particular for lighting purposes
DE924493C (en) Arrangement for generating X-ray space images with the aid of a movable grid
DE666536C (en) Projector
DE549597C (en) Process for making color photographs using lenticular film
AT201319B (en) Device for evaluating X-ray images of the fine structure of the material
DE380069C (en) Lens system for optical compensation with a film tape that is constantly moving with it
DE627363C (en) Device for the matching limitation of the image sections in the recording device and viewfinder
DE757410C (en) Goniometer for direction finding of wireless, especially very short waves
AT100160B (en) Device for the simultaneous production of the partial images of a multicolor image by splitting the bundles of rays penetrating an objective lens with the aid of optical means.