Image capturing device

An image capturing device, disposed on a dual-side scanner, the image capturing device comprising:

• a first base, comprising a first side edge and a second side edge opposite to each other;
• a first light-emitting element, located at the first side edge in the first base, for emitting a first light source to illuminate a document, so as to produce a first reflected light ray reflected by the document;
• a first compensator, located at the second side edge in the first base;
• a first sensing element, located in the first base and located between the first light-emitting element and the first compensator, for receiving the first reflected light ray;
• a first transparent sheet, covering the first compensator to protect the first compensator;
• a second base, comprising a third side edge and a fourth side edge opposite to each other;
• a second light-emitting element, located at the third side edge in the second base, for emitting a second light source to illuminate the document, so as to produce a second reflected light ray reflected by the document;
• a second compensator, located at the fourth side edge in the second base;
• a second sensing element, located in the second base and located between the second light-emitting element and the second compensator, for receiving the second reflected light ray;
• and
• a second transparent sheet, covering the second compensator to protect the second compensator;
• wherein the first compensator is configured to adjust an image difference of the second sensing element upon the receipt, by the second sensing element, of the second reflected light ray generated from the document illuminated by the second light source, and
• the second compensator adjusts is configured to adjust an image difference of the first sensing element upon the receipt, by the first sensing element, of the first reflected light ray generated from the document illuminated by the first light source.