This complete set comprises:
• A stable 300 × 200 mm base plate
• A light source with condensor and slit-holder to obtain several types of light beams, with a 12 V 21 W lamp; connection via cable and 4 mm safety plugs. Supplied with two spare lamps.
• The light source can be adjusted, for accurate adjustment of the rays with respect to the optical elements.
• A scaled disc of diameter 240 mm with double scales in degrees: 90°-0-90° with a system to position the optical elements.
• A plane mirror with a fixing device on the disc.
• A Plexiglas half-cylinder with 200 mm diameter which can be easily placed on the disc.
• A transparent half-cylinder tank with diameter 200 mm; height 2 cm; scaled in degrees 90°-0-90° on its cylindrical surface, with positioning on the built-in disc
2 diaphragms: a single-slit and a triple-slit.

