Mitsubishi Electric KD Series User Manual page 26

2-3 Definition
【 MTF variation on main scan direction 】
No. of Sensor IC
Variation of MTF value (KD6R309MX ： A3 size)
102%
101%
100%
99%
98%
0 200
Scan direction (mm ）
Distortion ratio of KD6R926MX (A0 size)
TM-XG537C
400 600 800
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【 Resolution Uniformity 】
The graph on the left shows a property of resolution uniformity in
the scanning direction of KD6R309MX (A3 size CIS). Each dot on
this Graph shows MTF value of each sensor chip in a CIS.
1. MTF value variation in the scanning direction
The graph on the left shows an example of MTF values of each
sensor ICs. This shows that this CIS have uniform resolution in
whole scanning width.
2. Distortion
The graph on the left shows an example of distortion values in 1
pixel of each sensor ICs, which is calculated by measurement
value of each pixel after assemble ( n = 5).
Distortion(%)
= Measured position* / Designed position* × 100
*Measured position and Designed position are distances from
the first pixel.
.
This shows that this CIS have uniform resolution in whole
scanning width.
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