Radiant energy – With infrared or thermal pattern recording – Thermal copying of documents
Patent
1975-01-03
1976-06-08
Borchelt, Archie R.
Radiant energy
With infrared or thermal pattern recording
Thermal copying of documents
250492R, G01N 2304
Patent
active
039625796
ABSTRACT:
Apparatus and a method for making an X-ray photograph of an object wherein the photograph, when viewed through a lenticular screen or other similar device, will provide a three-dimensional picture of the object and the interior parts thereof. The method is carried out by successively directing the X-ray beams from an elongated continuum of point sources of X-rays through the object, then through an improved parallax grating, and finally onto the film. The grating is formed of a plurality of spaced, generally parallel rods opaque to X-rays and extending transversely of said continuum to form a series of spaced slits through which the beams can pass onto the film, whereby the beams will form a series of side-by-side aspect views or images of the object on the film which can be viewed in three-dimension with the lenticular screen. Accurate measurements of depths of interior parts of the object can be made with the exposed film. A method of making the grating is also disclosed.
REFERENCES:
patent: 1447399 (1923-03-01), Pease
patent: 2029300 (1936-02-01), Arfsten
patent: 2214621 (1940-09-01), Leishman
patent: 2318983 (1943-05-01), Winnek
patent: 3560790 (1971-02-01), Tripp
patent: 3665184 (1972-05-01), Schagen
patent: 3783282 (1974-01-01), Hoppenstein
Anderson B. C.
Borchelt Archie R.
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