X-ray examination apparatus

Details X-ray examination apparatus X-ray examination apparatus

1993-07-19

1995-05-23

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 982, 378 987, G01M 2304

Patent

active

054188318

ABSTRACT:
An X-ray examination apparatus includes an X-ray source (10) and an image intensifier (30) with an imaging screen (32). The imaging screen (32) is imaged on the pick-up face (51) of an image pick-up device (50), for example a television camera. In order to adjust or maintain the optimum response time of the image pick-up device (50) to or at the desired level, the pick-up face (51) is illuminated by means of a number of illumination elements (145). In order to achieve a compact construction of the apparatus, the illumination elements (145) are accommodated in recesses (144) in a transparent element (141). The light of the illumination elements (145) is then reflected from the entrance face (142) facing the image intensifier (30) and/or from the sides (147) of the element (141). The transparent element (141) may be a prism so that the optical path between the image intensifier (30) and the image pick-up device (50) is folded.

REFERENCES:
patent: 4215365 (1980-07-01), Haendle et al.
patent: 4216494 (1980-08-01), Ohshima et al.
patent: 4359759 (1982-11-01), McBride et al.
patent: 4794630 (1988-12-01), Ploix

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