¨ Specifications:
¨ Material: Crystal quartz
¨ Dimension Tolerance: +0.0, -0.2mm
¨ Wavefront Distortion: lλ/8 @ 632.8 nm
¨ Retardation Tolerance: <λ/300
¨ Wavelength Range: 400-2100nm
¨ Parallelism: < 1 arc second
¨ Surface Quality: 20-10 scratch and dig
¨ AR/AR Coating: R < 0.2% at central wavelength