Structure for preventing extraneous light from entering...

Registers – Coded record sensors – Particular sensor structure

Reexamination Certificate

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Details

C358S475000, C358S474000, C358S497000, C358S461000

Reexamination Certificate

active

06892945

ABSTRACT:
An image reading apparatus for reading a document has an image sensor unit, which is moved along a platen glass in a sub-scanning direction, mounting an LED, a light guide and a sensor. A white reference panel for use of shading correction is provided on the platen glass on the side thereof opposite the image sensor unit. Light shield plates are provided on the platen glass on the side facing the image sensor unit along both sides of the white reference panel.

REFERENCES:
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patent: 5331433 (1994-07-01), Sato
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patent: 06-090328 (1994-03-01), None
patent: A2000-092289 (2000-03-01), None
Communitions from European Office dated Jan. 31, 2005 for Appl. No. 02023892.9-1522.
English Abstract of JP 63-063273 Mar. 19,1988.
English Abstract of JP 06-090328 Mar. 29,1994.

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