Table 2.
Influence of light attenuation on feature brightness.
| Position | Illumination height |
||
|---|---|---|---|
| 0 mm | 2 mm | 4 mm | |
| 1 | 1 | 1 | 1 |
| 2 | 0.0714 | 0.197 | 0.404 |
| 3 | 0.0526 | 0.155 | 0.380 |
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