Ideal substrates for planar optical components, such as plane mirror, filter, or beamsplitter plate.
Ideal for use as window in optical system
We can offer any desired sharp with a standard glass cutter, such as square and round window.
Available with a choice of coating. We offer high-reflectance metal or dielectri c c oatings. Ours coating covering various wavelengh ranges
Manufacturing Tolerances
Attribute |
Commercial standard |
Precision Standard |
Material |
BK7, Float Glass, B270 |
BK7, Fused Silica, Sapphire |
Dimensional |
+/- 0.25 mm |
+/- 0.15 mm |
Cosmetics (Scratch-dig) |
80-50,60-40 |
20-10,10-5 |
Edges |
Fine ground and beveled |
Fine ground and beveled |
Clear Aperture |
90% Reflecting |
90% Reflecting |
Coating |
See attached coating chapter |
See attached coating chapter |
All dimensions are in mm unless otherwise specified.
Different material, sizes, tolerance and coating are available upon request.
