With perfect surface
polishing, the precision window is ideal
to use as interferometer flat, laser window, optical flat,
beamsplitter substrate, or parallel plate.
Round shape precision window
Square shape precision window
Material: BK7 and
Fused silica typically.
Other Glass, Sapphire, Quartz are also available.
Dimension Tolerance: +0.0, -0.1mm
Thickness Tolerance: +/-0.2mm
Clear Aperture: >80%
Parallelism: up to 10"
Surface Quality: 20-10 scratch and dig
Wavefront Distortion: l/10 per
AR coating is available
Ravg<0.5%@broadband wavelength range