X-ray TV camera having function to switch a visual field of X-ra

Details X-ray TV camera having function to switch a visual field of X-ra X-ray TV camera having function to switch a visual field of X-ra

1993-11-04

1995-05-16

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 982, A61B 600

Patent

active

054168180

ABSTRACT:
An X-ray TV camera apparatus having a function to switch a visual field of an X-ray image, comprising an X-ray generating apparatus, an image intensifier for converting X-ray information by an X-ray which was generated from the X-ray generating apparatus and passed through an object to be examined into an optical image, a TV camera for converting the optical image from the image intensifier into the video signal, a switch to switch the visual field of the X-ray image on the image intensifier, and a correcting circuit to shading correct the video signal so that the video signal from the TV camera gives a uniform image in accordance with the visual field switched by the switch.

REFERENCES:
patent: 4573183 (1986-02-01), Relihan
patent: 4930144 (1990-05-01), Plut et al.
patent: 4955043 (1990-09-01), Nekovar
patent: 5164583 (1992-11-01), Aichinger et al.

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