Typically,
(1) Observations are made using two polarizing filters,
(2) Adjusted to be orthogonal to each other.
This method allows obtaining contrast and coloration based on the sample’s polarization characteristics. It is also effective in reducing sample reflection and glare.
| (1) Two polarizing filters are used.
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| In the case of our company’s metal microscope
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| (on the light source side) | (on the lens side) |
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| In the case of our company’s microscope (halation removal microscope)
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| (on the light source side) | (on the lens side) |
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(2) Adjusted to be orthogonal to each other One of the two polarizing filters can be adjusted for this purpose. |
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| In the case of our company’s metal microscope, (adjusted on the light source side.) |
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| In the case of our company’s microscope (halation removal microscope), (adjusted on the lens side.) |
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| Rotating the polarizing filter gradually induces changes. | |
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| <An actual example with applied polarization> | |
| ● In the case of solder on a substrate | |
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| ＜Before＞ | ＜After＞ |
| ●ビニールの表面 | |
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| ＜Before＞ | ＜After＞ |
| ● IC chip inside a storage stick | |
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| ＜Before＞ | ＜After＞ |
| ● Printing on IC | |
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| ＜Before＞ | ＜After＞ |
| ● Solder joint | |
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| ＜Before＞ | ＜After＞ |
| ● Object with mixed areas of high and low reflectivity | |
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| ＜Before＞ | ＜After＞ |
| ● Printing on a film | |
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| ＜Before＞ | ＜After＞ |
| ● Object inside a vinyl bag | |
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| ＜Before＞ | ＜After＞ |
| ● White resin embossed characters | |
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| ＜Before＞ | ＜After＞ |
(Note) Applying polarization can suppress reflection and glare to some extent. However, it may not completely eliminate them. The effectiveness can vary depending on the object.
| Products from Shodensha for halation removal
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By attaching polarizing filters to both the incident and emission sides, you can significantly reduce halation. Microscope Halation Removal Set GR-HL |
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Attaching polarizing filters to the lens tip and LED ring illumination with a W filter significantly reduces halation. Halation Removal Microscope HTG500CS |
