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home position, or perform the flatbed scanning.
Optical Unit
The reduction optical system with lens forms an optical system consisting of some mirrors
and lenses, an illumination meter and an imaging system to realize the specified public
service area in a certain space. Compared to this the CIS consists of a lens, an imaging
system(reading sensor) and an illumination meter. Furthermore, the CIS also reads
information corresponding one by one to the image of the point to the sensor which is in
line towards the scanning line direction. The reduction optical system of the color scanner
also reflects the white light from the illumination meter to the surface of the original, and
reads each color level based on the image information matched to each color channel
through this optical path, but the illumination meter, in case of CIS, illuminates per each
color channel and the color of each channel is defined by reading the reflected light from
the original by a sensor.
Reading point by Illumination Unit
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