Material

BK7

Dimension Tolerance

+0.0/-0.1mm

Thickness Tolerance

±0.2mm

Clear Aperture

>90%

Flatness

λ/[email protected] per 25mm range

Surface Quality

60/40 scratch and dig

Coating

Dielectric HR coating on one surface, R>99.5% @ design wavelength for random polarization,

rear surface ground or inspection polished

Damage Threshold

>5J/cm², 20ns, 20Hz, @1064nm