Frequently Asked Questions

The features of Union Optic's color glass filters include dimension tolerance of +0.0/-0.2mm, thickness tolerance of ±0.2mm, flatness of 2λ@632.8nm, surface quality of 80/50 scratch and dig, parallelism of <5 arc minutes, and clear aperture of >90%.

A color glass filter is a filter that exhibits various colors depending on the glass type due to its selective absorption in the visible wavelength range.

Color glass filters are widely used in safety glasses, industrial measurement, regulation technology, and environment protection.

The datasheet for Union Optic's color glass filter can be found on their website.

Yes, Union Optic can provide various color glass filters or its substitutes.

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