X-ray or gamma ray systems or devices – Specific application – Stereoscopy
Patent
1996-10-21
2000-05-09
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Stereoscopy
378162, G21K 400
Patent
active
060614242
ABSTRACT:
Method and apparatus for stereoscopic images using a viewing grid and not requiring a lenticular viewing screen. In one embodiment applied to roentgenography, the apparatus includes an X-ray source, a table or cradle disposed beneath the X-ray source for securing an image subject such as a patient, and a recording medium cassette disposed beneath the table or cradle. The cassette includes a film comprising a base, an emulsion on a first side of the base and a viewing grid on an opposite second side of the base, an image intensifying screen for exposing the emulsion films for recording an image, and a recording grid located between the phosphorous screen and the emulsion side of the film, and fixed in position relative to the image intensifying screen for masking a plurality of strips of predetermined width, of the emulsion film. During exposure, relative movement between the cradle and cassette is maintained so as to capture various views of the image subject on the emulsion film. Where tomographic images are recorded, frontal and rear view stereoscopic images can be visualized on opposite sides of the film, respectively.
REFERENCES:
patent: 3783282 (1974-01-01), Hoppenstein
patent: 3848136 (1974-11-01), Seldin
patent: 5049987 (1991-09-01), Hoppenstein
Burder David Gifford
Hoppenstein Reuben
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