Recorders – Printing – dotting – or punching marker – Ink transfer support or moving means
Patent
1986-05-06
1988-06-14
Goldberg, E. A.
Recorders
Printing, dotting, or punching marker
Ink transfer support or moving means
358296, 355 26, G01D 942, H04N 121
Patent
active
047515252
ABSTRACT:
A method and apparatus for exposing a pair of radiation sensitive surfaces to a beam of optical radiation is described. The apparatus comprises a support (20) for supporting the radiation sensitive surfaces which may be provided on opposite sides of an identification card. A laser (1) provides a laser beam which impinges on a pair of resonant scanners (10,11) which cause radiation impinging on their respective mirrors to be reflected onto opposite surfaces of the identification card. A control system (103) causes the mirrors of the scanners (10,11) to oscillate in quadrature. The laser beam passes through an A/O modulator (4) responsive to signals from the control system (103) to cause radiation to impinge alternately on one or the other of the scanners (10,11). The scanners (10,11) are arranged such that when the beam of radiation impinges on a scanner, the radiation is caused to impinge on and to scan across the respective surface of the identification card (19) supported by the support (20), in response to oscillation of the scanner.
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De La Rue Company, PLC
Goldberg E. A.
Reinhart Mark
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