Specification
Material: BK7 Grade A optical glass
Dimension Tolerance: ¡À0.2mm
90¡ã- 180eviation Tolerance
Standard series:<30 are seconds
Precision series:<15 arc seconds
Flatness:
Standard series:¦Ë/2 at 632.8nm
Precision series:¦Ë/4 at 632.8nm
Surface Quality: 60-40 scratch and dig
Beamsplitter Ratio: Transmission/Reflection
@630-680nm, T/R: 20/80%
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