Coating lens Dimension Tolerance:+0.0, -0.1mm Clear Aperture: >85 of dimension Surface Quality:40-20 Deviation:+/-1 Coating  lens

Specifications:

optical mirror lens Material:	N-BK7 or UV Fused Silica
Dimension Tolerance:	+0.0, -0.1mm
Thickness Tolerance:	± 0.1mm
Surface quality:	60/40(Standard), 10/5(High Precision)
Clear Aperture:	>85%
Flatness:	λ/4 per 25mm@633nm
Parallelism:	<1'
Bevel:	<0.25mm X 45°
Coating:	One surface(S1) :HR @ design wavelengthThe other surface :uncoated

coating lens