9326682

AR coatings: AR/AR @ 815 nm
Clear Aperture: 25.4
Configuration: Optically contacted
Material: Crystalline Quartz
Mount: Unmounted
Retardation order: Zero order
Retardation tolerance: ±λ/500 @ 20 °C
Retardation: λ/2
Surface quality, S-D: 20-10
Wavelength, nm: 815
Wedge / Parallelism error: < 10 arcsec