Polarization filter set, D 21 cm, polariscope

For the generation of linear polarised light and to demonstrate the distribution of tension
during elastic deformation of specimens in polarised light (photoelastic examination);
Two polarising filters on an acrylic glass carrier with a widely visible degree scale;
Division in 1°, clear marking of the 90° increments;
Block of wood with 4 slots for parallel or slightly offset placement of the filters,
marking lines for exact angle adjustment and reading;

Outside diameter: 21 cm
Diameter of the polarising filters: 15 cm
Dimensions: 24 x 13 x 22.5 cm