9431373

Surface quality, S-D: 20-10
AR coatings: R<0.2% @ 633 nm on each surface
Transmitted wavefront distortion, PV: <λ/10 @ 632.8 nm
Retardation: λ/2
Retardation tolerance: λ/300 @ 20 °C
Retardation order: ZO
Mount: Ø25.4 x 6 mm black anodized metal mount
Material: Crystalline Quartz
LIDT: >10 J/cm2 for 10 ns pulses @ 1064 nm
Configuration: Air spaced
Clear Aperture: >18
Wavelength, nm: 633
Parallelism error: <3 arcsec