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Porro Prisms

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  • Application: 180°beam folding prism
Specifications
Material: Crown, Flint, UVFS
Surface Flatness: λ/10 @ 633nm
Surface quality: 20/10
Dimension Tolerance: +0.00/-0.20mm
Angle Error of 90 °: <2'
Beam Deviation:: <10 arcsec
Clear Aperture: 90% of central dimension
Bevel: 0.3mmx45°
 

     

Beam Deviation = 2nδ

n: Refractive Index
δ: Angle Error of 90°