Abstract: An x-ray diagnostic installation has an x-ray source for generating an x-ray beam, an x-ray image converter for acquiring an x-ray image that includes a scintillator layer and a detector with photoelements arranged matrix-like, and a playback system connected thereto for the playback of the x-ray image. The x-ray image converter also includes an array of a number of optical elements arranged between the scintillator layer and the image converter. This array can be composed of micro-lenses or micro-objectives lens elements. A respective micro-lens is allocated to each photoelement of the detector or a respective micro-objective lens elements is allocated to a group of photoelements of the detector.

Abstract: An x-ray diagnostics installation having a transmission chain subject to imaging errors. The transmission chain has at least an x-ray image intensifier and an optical system for imaging the output image of the x-ray image intensifier onto a video pick-up coupled to the optical system. The optical system has a distortion which compensates for the imaging errors of the other elements of the transmission chain such that the imaging errors of the transmission chain are substantially eliminated.

Abstract: An electron vacuum image intensifier for use in an x-ray diagnostic installation has an output screen followed by an objective lens system in the installation for connection to a picture receiving tube of a television chain. The carrier for the output luminescent screen of the intensifier is incorporated into the wall of the bulb or tube of the intensifier, and has a thickness corresponding to at least half of the diameter of the output image for avoiding reflections and improving the image quality.