Specification;

Material................................................................Crystal quartz+BK7 optical glass

Dimension Tolerance....................................................................+0.0, -0.2 mm

Wavefront Distortion.................................................................λ/ 8 @ 632.8 nm

Retardation Tolerance............................................................................<λ/500

Wavelength Range........................................................................400~2100 nm

Parallelism....................................................................................< 1 arc second

Surface Quality.........................................................................................40-20

Coating...........................Anti-reflecting coatings on both sides,R<0.25%@λ,AOI 0°

Damage Threshold...........................................................>0.25J/cm2,10ns,10Hz