IMAGE SENSOR UNIT AND IMAGE READING APPARATUS
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United States of America Patent
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Issued Date -
Apr 25, 2013
app pub date -
Oct 19, 2012
filing date -
Oct 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An image sensor unit has a first light guide that emits light to a bill, a second light guide that emits light to the bill, a rod-lens array that receives the light emitted by the first light guide and reflected by the bill and the light emitted by the second light guide and transmitted through the bill, and a background member that provides a background color for the bill. The bill can pass through the gap between the rod-lens array and the background member and second light guide. The background member is disposed on the optical axis of the rod-lens array to face the rod-lens array. The second light guide is disposed at a position shifted from the optical axis of the rod-lens array in the conveyance direction of the bill.
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