Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1997-10-01
2000-12-26
Ham, Seungsook
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
250566, 235454, H01J 314
Patent
active
061663751
ABSTRACT:
A scan module and an optical system such as for a bar code scanner wherein the optical system has an axis of outgoing (illumination) light offset from the axis of collected light, arranged to limit the dynamic range of the collected light and thus the dynamic range within which the bar code scanner detector and signal processor must function. Preferably, the outgoing axis and the collection lens axis are substantially parallel.
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Rudeen, U.S. Patent Appln. Serial No. 09/127,399, filed Jul. 31, 1998, for "Collection System For Range Enhancement" (corresponds to Provisional Appln. 60/054,962 filed Aug. 7, 1997).
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Ahten Michael J.
Ring James W.
Ham Seungsook
PSC Scanning Inc.
Pyo Kevin
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