In stock
Protective chamfers: 0.2mm x 45° (Chips of edges: <1.0 mm)
Clear Aperture: 1.5 mm from the circumference
Coatings:
Diameter, mm: 21.0 (±0.1) (cut)
Material: UVFS
Parallelism error: <20 arcsec
Surface quality: 40-20 S-D
Thickness, mm: 3.0 (+0.0/-0.1)
Transmitted wavefront distortion, PV: λ/4 (PTV)
Clear Aperture: 1.5 mm from the circumference
Coatings:
Diameter, mm: 21.0 (±0.1) (cut)
Material: UVFS
Parallelism error: <20 arcsec
Surface quality: 40-20 S-D
Thickness, mm: 3.0 (+0.0/-0.1)
Transmitted wavefront distortion, PV: λ/4 (PTV)
