Amplitude modulating device for X-ray film reading machine

The utility model discloses an amplitude modulating device for an x-ray film reading machine for a doctor to observing and reading an x-ray film. The amplitude modulating device for an x-ray film reading machine mainly comprises a box body in which four brackets are arranged. The brackets are arranged on the back side wall of the box body. An upper, a lower, a left and a right amplitude modulating devices are arranged on the brackets. The amplitude modulating device for an x-ray film reading machine is characterized in that the size of a film reading window can be optionally adjusted according to the size of the x-ray film. In addition, unnecessary light can be well blocked from penetrating by curtain cloth. The utility model has the advantages of reduction of stimulation to a film reading person, relief of eyes fatigue degree, and effective protection of the eyes of the film reading person.