Patent ID: 6170751
Filing Date: 2001-01-09
Classification: G06K

Abstract:
A scanning module of a scanner comprising:a carriage with a first scanning position;a light detecting device installed inside the carriage for detecting light from a document which is transmitted from the first scanning position;a plurality of mirrors installed inside the carriage for reflecting the light from the document to the light detecting device, the plurality of mirrors comprising at least one moveable first mirror for changing the optical path of the light from the document to the light detecting device so that the light from the document can be directed to the light detecting device along a first optical path or a second optical path; anda lens set installed inside the carriage for focusing the light from the document onto the light detecting device, the lens set comprising a first end and a second end;wherein in the first optical path, the light from the document is directed through the lens set from the first end to the second end of the lens set and then focused by the lens set onto the light detecting device, and in the second optical path, the light from the document is transmitted through the lens set from the second end to the first end of the lens set and then focused by the lens set onto the light detecting device.