Radiographic image information reading apparatus

Details Radiographic image information reading apparatus Radiographic image information reading apparatus

1996-10-03

1998-06-02

Glick, Edward J.

Radiant energy

Source with recording detector

Using a stimulable phosphor

G03B 4202

Patent

active

057604169

ABSTRACT:
An apparatus for reading a radiographic image on a stimulable phosphor sheet, includes a scanner having a rotatable polygon mirror having N pieces of mirror surfaces so that the scanner scans N lines during one rotation of the polygon mirror, and a correcting circuit for correcting image signals so as to eliminate irregularity caused by the polygon mirror. The correcting circuit includes a memory for storing a correction value for each of the mirror surfaces, a surface detecting circuit to identify a mirror surface used for scanning a current line of the image signals, and a shifting circuit to shift data in the memory to the correction value of the identified mirror surface.

REFERENCES:
patent: 3859527 (1975-01-01), Luckey
patent: 4551626 (1985-11-01), Agano
patent: 4642462 (1987-02-01), Aagano et al.

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