4542-0001
λ/4 or better · BK7
Precision Optical Flat — BK7
Optical flats are the reference against which the flatness of an unknown surface is measured. For less demanding jobs Tower offers them in BK7 at λ/4 or better. They can also serve as windows. Precision ground and polished, single or double sided, 25 to 200 mm.
$75
from, per flat
In stock
Volume pricing, custom sizes, coatings and mounts available — review your quote list or request a formal quote.
Specifications
- Material
- BK7
- Flatness
- λ/4 or better
- Surface quality
- 60/40
- Parallelism
- < 1 arc min
- Diameter
- 25–200 mm
- Single / double sided
- Both
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