Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hideki Sawada0
Date of Patent
February 19, 2008
0Patent Application Number
105420780
Date Filed
January 15, 2004
0Patent Primary Examiner
Patent abstract
An image reading device includes light-emitting diode chips (11A-11C) and a light guide (3) having a main region (3A) and a subsidiary region (3B). The subsidiary region (3B) includes a light incident surface (31) located above the light source (11A-11C) and an inclined surface (32). The light source (11A-11C) is offset in a direction receding from the main region (3A) with respect to the center (C2) as viewed in the primary scanning direction of the light incident surface (31).
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