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| Color Glass Filter |
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Due to its selective absorption in visible wavelength range, color glass filter will exhibit various color depending the glass type. Color glass filter provides an economical filter for various applications.
Optical glass filters are widely used in safety glasses, industrial measurement, regulation technology and environment protection. |
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| Union Optic can provide various color glass filters or its substitutes. Here is a list of frequently used filters. |
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| GG Series: Yellow glass |
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GG400, GG420, GG455, GG475, GG495 |
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| OG Series: Orange glass |
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OG530, OG550, OG570, OG590 |
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| RG Series: Red and black glass, IR transmitting |
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RG610, RG630, RG645, RG665, RG695, RG715, RG780, RG830, RG850 |
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| UG Series: Black blue glasses, ultraviolet transmitting |
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UG1, UG5, UG11 |
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| KG Series: Colorless glass with high transmission in the visible and absorption in the IR range (heat protection filters) |
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KG2, KG3 |
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| NG Series: Neutral glass with uniform attenuation in the visible range |
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NG1, NG3, NG4, NG5, NG9, NG11 |
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| Other frequently used color filter |
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| WG Series |
WG280, WG295, WG320, WG345, WG360 |
| BG Series |
BG38, BG39 |
| VG Series |
VG5, VG6, VG8, VG9, VG10, VG11 | |
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| Specifications |
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| Dimension Tolerance |
+0.0/-0.2mm |
| Thickness Tolerance |
±0.2mm |
| Flatness |
2λ@632.8nm |
| Surface Quality |
80/50 scratch and dig |
| Parallelism |
<5 arc minutes |
| Clear Aperture |
>90% | |
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