Dental X-ray alignment system

Details Dental X-ray alignment system Dental X-ray alignment system

1976-03-09

1977-03-15

Dixon, Harold A.

Radiant energy

Means to align or position an object relative to a source or...

250338, 250479, G01N 2100

Patent

active

040126382

ABSTRACT:
Dental x-ray film is properly aligned with the x-ray beam utilizing a plurality of infrared emitters and detectors that are positioned circumferentially about the path of the x-ray beam. A reflecting surface whose plane is parallel with the plane of the x-ray film holder and integral therewith can be positioned parallel to the plurality of emitters and sensors by repositioning until the sensors receive a predetermined reflective response. Each sensor activates an indicator light seen on a display and when all the lights in a bank of lights are activated alignment is achieved. The output of the sensors can also be summed and when the sum output reaches a predetermined value an oscillator is triggered thus creating an audible tone indicating proper alignment.

REFERENCES:
patent: 2090933 (1937-08-01), Bolin
patent: 2553028 (1951-05-01), Wright
patent: 2659824 (1953-11-01), Burnham
patent: 3076949 (1963-02-01), Anderson
patent: 3092721 (1963-06-01), Medwedeff et al.
patent: 3777160 (1973-12-01), Bernt
patent: 3861807 (1975-01-01), Lescrenier

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