X-ray or gamma ray systems or devices – Specific application – Dental panoramic
Patent
1980-09-19
1982-07-20
Church, Craig E.
X-ray or gamma ray systems or devices
Specific application
Dental panoramic
378 91, G03B 4116
Patent
active
043409717
ABSTRACT:
The disclosure relates to a dental radiographic apparatus for photographing the entire jaws having a rotary arm including an X-ray generator disposed in an opposed relation with an X-ray film feed means. The apparatus includes a means for detecting electrically the shape and characteristics of an object through the position of the rotary arm rotated and a means for automatically controlling the rotation speed of the arm and the feed speed of an X-ray film in response to the detection signal generated by the electrical detection means, whereby it is intended to provide a clear and sharp X-ray photographic image free from distortion, uniform in density and optional in rate of enlargement.
REFERENCES:
patent: 4039837 (1977-08-01), Ohta
Furuichi Shuhei
Suzuki Masakazu
Church Craig E.
Kabushiki Kaisha Morita Seisakusho
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