Original reading device

Details Original reading device Original reading device

1982-09-02

1984-12-04

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358285, 358294, H04N 110

Patent

active

044867867

ABSTRACT:
An original reading device has an original table for supporting thereon an original with its surface to be read facing upward, a retention plate for retaining the original, and a scanning head movable along the retention plate in a minor scanning direction. The scanning head contains therein an optical system including a lens, and an image sensing element for scanning the surface to be read of the original in a major scanning direction. The retention plate is vertically movable in accordance with the thickness of the original. The scanning head is vertically movable to maintain the length of the optical path between the surface to be read and the lens constant even if the thickness of the original is large, and the scanning head is provided with a spacer which bears against the retention plate.

REFERENCES:
patent: 3413411 (1968-11-01), Stauffer
patent: 3602639 (1971-08-01), Alden
patent: 3614313 (1971-10-01), Alden
patent: 3739095 (1973-06-01), Alden
patent: 3752558 (1973-08-01), Lloyd
patent: 3886309 (1975-05-01), Mason
patent: 3911213 (1975-10-01), Tregay
patent: 4275423 (1981-06-01), Takahashi
patent: 4421403 (1983-12-01), Sato et al.

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