1. A radiology device comprising an X-ray source ( 11 ) for exposing a subject (S) to the radiation of said source, means ( 12 ) for converting the X-rays into optical images so as to form primary optical images, means ( 20 ) for transforming the primary optical images into secondary optical images, and means ( 40 ) for displaying the secondary images to a user, characterized in that the means for forming the secondary optical images comprise an optical chain comprising in succession, from the output of the converter to the output of the device, an image enlargement assembly ( 22 ) exposed directly to the primary images from said conversion means ( 12 ), an assembly ( 23 ) for optical intensification of the enlarged images and a photosensitive matrix sensor ( 25 ) for making said secondary images.