Reference Manual Chapter 9
Ranger E/D
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Hardware Description
9.1.5 Standard and high-resolution color differences
The pixels on the standard color rows have a uniform size of 9.5 x 9.5 µm (Horizontal x
Vertical) whereas the pixels on the high-resolution color rows have a non-uniform size of
4.75 x 20 µm. The high-resolution pixels are hence less wide, which gives a better horizon-
tal resolution whereas the resolution in the vertical direction (i.e. object transportation
direction) is worse. For the ColorRanger E40 and E50, only every other pixel of the high-
resolution row are used which approximately gives the same resolution as the standard
rows.
The pixels on the high-resolution rows have much higher light sensitivity than those on the
standard rows (see the color response graphs on the previous page). This is explained by
their larger pixel area, a higher fill-factor, and that the color filters are optimized for the
characteristics of the high-resolution pixels.
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