X-ray or gamma ray systems or devices – Specific application – Stereoscopy
Patent
1982-09-10
1985-01-01
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Stereoscopy
378146, G03B 4116
Patent
active
044919565
ABSTRACT:
A method and apparatus for making X-ray photographs which can be viewed in three dimensions with the use of a lenticular screen. The apparatus includes a linear tomograph having a moving X-ray source on one side of a support on which an object is to be placed so that X-rays can pass through the object to the opposite side of the support. A movable cassette on the opposite side of the support moves in a direction opposite to the direction of travel of the X-ray source as the source moves relative to the support. The cassette has an intensifying screen, a grating mask provided with uniformly spaced slots for passing X-rays, a lenticular member adjacent to the mask, and a photographic emulsion adjacent to the opposite side of the lenticular member. The cassette has a power device for moving the lenticular member and the emulsion relative to the mask a distance equal to the spacing between a pair of adjacent slots in the mask. The X-rays from the source, after passing through an object on the support, pass into the cassette through the slots of the mask and are focused on the photographic emulsion to result in a continuum of X-ray views of the object. When the emulsion is developed and viewed through the lenticular member, the object can be seen in three dimensions.
REFERENCES:
patent: 3382362 (1968-05-01), Tokuyama
patent: 3783282 (1974-01-01), Hoppenstein
patent: 4404471 (1983-09-01), Wennek
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