AMICI prism (Direct Vision Prisms)
The AMICI prisms generate dispersion of polychromatic
light with simulaneous correction of divergence. All
the dispersed beam output from the prism are parallel
to the input beam. These Prisms consist of three
prisms, which are cemented together Two of the three
prisms (A prism in the left draft) are made of
different material lo the other prism (B prism in the
left draft). Typical combination of materials are Flint
galss for A and Crown glass for B.