Original-document illumination apparatus, image reading...

Facsimile and static presentation processing – Facsimile – Picture signal generator

Reexamination Certificate

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Details

C358S474000, C358S497000, C358S498000

Reexamination Certificate

active

07852522

ABSTRACT:
Provided is an original-document illumination apparatus which includes: an illuminated area having a length and a width; a light-source unit including a plurality of light-emitting elements aligned in a main-scanning direction, wherein a direction of the length is the main-scanning direction and a direction of the width is a sub-scanning direction; and a convergent lengthy lens disposed between the illuminated area and the light-source unit, wherein a longitudinal direction of the convergent lengthy lens corresponds to the main-scanning direction, wherein at least one of a light-incident plane and a light-output plane of the lengthy lens has a shape, within a cross-section in the sub-scanning-direction of the lengthy lens as a specific light-flux-passing-surface shape, which varies in accordance with positions of the shape of the specific light-flux-passing surface in the main-scanning direction.

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