Light guide, illuminating device having the light guide, and...

Facsimile and static presentation processing – Facsimile – Picture signal generator

Reexamination Certificate

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Details

C358S475000, C358S474000, C358S509000, C358S505000, C250S227110

Reexamination Certificate

active

07057778

ABSTRACT:
There is disclosed an illumination device in which a light guide is adapted to emit the light from a face thereof and is provided with an area, on a face opposite to the light emitting face, for diffusing and/or reflecting the light introduced into the light guide from an end face thereof or is provided with uneven light emitting characteristics along the longitudinal direction of the light guide, and the center of the light source positioned at the end of the light guide is placed at a position aberrated from the normal line to said area, whereby attained are compactness, a low cost, a low electric power consumption, a high efficiency of utilization of the light emitted by the light source, and excellent and uniform illumination characteristics. There are also disclosed an image reading device and an information processing apparatus, equipped with the above-mentioned illumination device.

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