Frequently Asked Questions

A UV Grade Fused Silica Mirror is a highly polished surface that reflects light with a thin coating of aluminum or silver.

The dimensional tolerance is +0.0/-0.1mm for both standard and high grade mirrors.

The scratch/dig ratio for the mirror is 40/20 for standard grade and 10/5 for high grade.

The thickness tolerance for both standard and high grade mirrors is ±0.2mm.

The parallelism for both standard and high grade mirrors is less than 3 arc minutes.

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