A set of acrylic bodies with white matt bottom to provide a view of the ray inside the component. Suitable to use with a light box.

Planoconcave lens, f =-120 mm , l=60 mm
Planoconvex lens, f = +120 mm ,l=60 mm
Semicircular body, R =30 mm
Right angled prism , h =30 mm
Trapezoidal body, 60/45 x 30 mm