Figure 1

A source of 5 parallel light beams, various lenses, mirrors and their combinations can be attached to the blackboard by magnetic holders. Pivots on the magnetic holders allow the rotation of lenses and mirrors. With this kit an instructor can perform various demonstrations in geometric optics including reflection, refraction, and properties of mirrors, lenses, and prisms. The light source requires a 12V, 5A power supply.

Notes:

• Use the knobs to set mirrors on the light source for parallel, divergent, or convergent rays. Remove individual rays if needed.
• If some beams are dim, try shifting the bulb around.