18 Dec 2012 DeLn Optics could provide up to 1.2 meter in diameter flat glass windows.
The minimum thickness of windows we can process is 0.3mm.
Precision N-BK7 Substrate
Dimension Tolerance: +0.0, -0.1mm
Thickness Tolerance: ±0.2mm
Clear Aperture: >80%
Parallelism: 1’(Standard), 10”(High Precision)
Surface Quality: 60/40(Standard), 20/10(High Precision)
Wavefront Distortion: L(Standard), L/10(High Precision) per 25mm @633mm
Bevel: <0.25mm x 45°
Anti-reflection coatings provide <0.25% reflection at the coating's design wavelengths.
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