| Observation of a φ6mm plated cylindrical object The microscope used was the “USB microscope TG500CS” During polarized observation, the “Halation removal microscope HTG500CS” was used |
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| ＜Observation example 1＞Using a 56-LED ring light | |
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| ＜Observation example 2＞Using a 56-LED ring light and a white V-block | |
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| ＜Observation example 3＞Using an 80-LED ring light and polarizing filters on both the light source and the lens | |
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| ＜Observation example 4＞ Using twin-arm light to illuminate along the cylinder, without the ring light | |
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| Adding a polarizing filter only to the lens under the same conditions as above. |  |
| ＜Observation example 5＞Using arch-type light (without the ring light) | |
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