Tomograph for photographing entire jaws

Details Tomograph for photographing entire jaws Tomograph for photographing entire jaws

1981-06-23

1984-02-07

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Dental panoramic

378 91, G03B 4116

Patent

active

044307462

ABSTRACT:
This disclosure relates to the improvement of a tomograph for photographing the entire jaws which is designed to make an X-ray photograph of a curved plane section of an object by changing the rotating output of a motor for driving a rotary arm by using an eccentric cam means to control a film feed speed by the rotary output thus change. This apparatus includes a tachogenerator for converting the rotating output of the rotary arm driving motor into an electric output, a voltage shunting means for shunting the output of the tachogenerator to three paths, a reference point correction circuit and a changeover resistance means, and is capable of providing a clear X-ray photograph of a patient in the range of adults to children without necessity to change the eccentric cams nor the position of the patient.

REFERENCES:
patent: 4286163 (1981-08-01), Suzuki

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