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 from 25mm to 200mm.

Yes, Tower offers custom versions of their precision optical flats. Customers can send their drawings or specifications and Tower will provide a quotation.

You May Also Like