Frequently Asked Questions

Precision optical flats are used as a reference against which the flatness of an unknown surface can be determined.

Precision optical flats are made from Fused Silica or BK7.

Tower's BK7 optical flats have a flatness specified as λ/4 or better.

Tower's precision optical flats are available in sizes ranging from 25mm to 200mm.

Yes, Tower offers carrying cases for their precision optical flats. Customers can order CASE-S for up to 100mm for $20, and CASE-L for 150 & 200mm for $50.

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