Radiant energy – Source with recording detector
Patent
1998-10-26
1999-11-16
Hannaher, Constantine
Radiant energy
Source with recording detector
25037009, G01T 129, G03G 504
Patent
active
059862785
ABSTRACT:
Filmless photon imaging sensor plates and apparatus which are particularly effective in medical radiology and industrial applications including, but not limited to high resolution mammography. In combination, the sensor plates and apparatus provide rapid production of high resolution images which exhibit higher sensitivity and wider dynamic range than contemporary X-ray systems. Novel sensor plate structures provide images having attributes of increased sensitivity; dual plate design providing increased pixel read-out speed and differential dual energy image production; and electrically isolated segments by which a plurality of pixels are read concurrently to reduce overall image processing time. Generally, the plates employ a homogeneous photoconductive material such as amorphous selenium and are read by exposing each pixel sized area to a small diameter scanning light beam. Using light beam scanning, resulting plate design promises low cost manufacture of both sensor plates and associated apparatus. Novel application of electric fields during plate preparation, exposure and read-out provides improved sensor plate performance. A plurality of precisely-positioned light beams are scanned across the sensor through the use of a novel optical system employing an elongated light source disposed within a rotating drum, the drum being generally opaque with a helical transparent pattern which in combination with a series of lenses and a slit provides the plurality of precisely-positioned scanning light beams. By changing slit and beam widths, variable resolution operation is achieved.
REFERENCES:
patent: 5166524 (1992-11-01), Lee et al.
patent: 5268569 (1993-12-01), Nelson et al.
patent: 5508507 (1996-04-01), Nelson et al.
Becker Charles D.
Foster Harry Dell
Thorne Gale H.
Yardley James V.
Zermeno Alfonzo
Evans Paul S.
Hannaher Constantine
Quantum Imaging Corporation
Thorne Gale H.
LandOfFree
Filmless photon imaging apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Filmless photon imaging apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filmless photon imaging apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1327741