X-RAY IMAGING APPARATUS

An X-ray imaging apparatus has an image intensifier for converting an X-ray shadowgram of a patient into visible light. A primary lens group collimates the visible light and a secondary lens group forms the image carried by the visible light on a TV imaging device. The primary lens group is provided...

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Bibliographische Detailangaben
Hauptverfasser:	NIINO, MASAO
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION SURGERY X-RAY TECHNIQUE
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Beschreibung
Zusammenfassung:	An X-ray imaging apparatus has an image intensifier for converting an X-ray shadowgram of a patient into visible light. A primary lens group collimates the visible light and a secondary lens group forms the image carried by the visible light on a TV imaging device. The primary lens group is provided with a beam splitter for reflecting a part of the light output by the image intensifier toward the secondary lens group and transmitting the remainder thereof to a pick-up optical system for detecting the brightness of the image output by the image intensifier. The exposure of the patient to X-rays can be controlled on the basis of the detected brightness.