Multiple head optical scanner

Details Multiple head optical scanner Multiple head optical scanner

1981-07-30

1984-09-25

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250578, 235462, 235470, H01J 516

Patent

active

044737467

ABSTRACT:
A multiple-head optical scanner includes a plurality of read heads for reading a column of video information at a scanning window. Each read head includes a photosensor array and a lens assembly. The lens assembly focuses the light flux reflected from a segment of the scanning window onto the photosensor array. The photosensor array converts the reflected light flux into electrical signals. The optical axes of adjacent read heads are aligned to intersect the document plane at the scanning window at different angles. In addition, the segment scanned by each read head overlaps a portion of the segment scanned by its adjacent read head.

REFERENCES:
patent: 3469238 (1969-09-01), Partin
patent: 3792268 (1974-02-01), Bjerke et al.
patent: 3902049 (1975-08-01), Hanchett, Jr.
patent: 4358794 (1982-11-01), Kurakami et al.

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