Thickness: 0.2-0.5 mm
High Damage Threshold
Better Temperature Bandwidth
Low Cost

Specifications:
Material: Crystal Quartz
Dimension Tolerance: +0.0, -0.2 mm
Wavefront Distortion: <l/8 @ 632.8 nm
Retardation Tolerance: <l/500 (typical)
Wavelength Range: 240-2100 nm
Parallelism: <1 arc second
Surface Quality: 20-10 scratch and dig
AR/AR Coating: R<0.2% at central wavelength