H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/16
H04N 1/04 (2006.01) H04N 1/031 (2006.01) H04N 1/06 (2006.01)
Patent
CA 1262489
TITLE LASER SCANNING APPARATUS ABSTRACT A laser scanning apparatus is disclosed. The apparatus includes a curved field for receiving a radiograph to be scanned, a source of interrogating radiation, a means for producing a focussed scanning beam of interrogating radiation onto the radiograph, a gantry for mounting the source and beam producing means; a means for relatively displacing the gantry with respect to the field so as to cause the beam to scan the field in raster fashion; and a photodetector positioned with respect to the field to receive radiation transmitted through the radiograph. The photodetector itself comprises a plurality of semiconductor elements connected electrically in parallel and physically arranged in edge-to-edge abutting relationship. The elements are arranged in a curvilinear pattern with each being substantially equally spaced from the radiograph.
522120
Elias John G.
Lee Jerald D.
Rockney Bennett H.
E. I. Du Pont de Nemours And Company
Elias John G.
Lee Jerald D.
Mccallum Brooks & Co.
Rockney Bennett H.
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