Optical amici prism/roof prism

Amici prism,also called roof prism,17.98mm,HK9L glass with AR coating,used on spectrometer mostly.

The specification of Amici prism as picture indicated:

N1=N2=2,Delta N1,N2=0.5

N3=N4=2,Delta N3,N4=0.5

Surface quality:60-40

Theta 1=Theta 2=10 '

Roof symmetry is 0.15,can have 3 break-points,small than 0.1

Perpendicularity of 3 and 4 faces is 10'

AR coating (MgF2@550nm) T>95%