X-ray diagnotics installation with brightness controlled by a do

Details X-ray diagnotics installation with brightness controlled by a do X-ray diagnotics installation with brightness controlled by a do

1991-10-09

1992-09-01

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

378 97, 378108, H05G 164

Patent

active

051446464

ABSTRACT:
An x-ray diagnostics installation has an image intensifier video chain with a detector for obtaining an actual value of the brightness of a dominant region within the image at the output screen of the x-ray image intensifier, this actual value being compared with a rated value for controlling the overall brightness of the image. For this purpose, the output image of x-ray image intensifier is directed onto a chip having electrically driveable micromirrors, which can be individually driven, so that by selected individual drive of the micromirrors the individual micromirrors can be oriented as needed to direct a selectable image portion onto a light detector, for use in controlling the brightness.

REFERENCES:
patent: 4982418 (1991-01-01), Kuehnel
patent: 5029338 (1991-07-01), Archenger
patent: 5067142 (1991-11-01), Gallet

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