A multitude of experiments can be performed which optimally explore and demonstrate the fundamental principles of geometrical optics. Experiments on the following topics are possible: Law of Refraction and Law of Reflection Total reflection Determining the focal length of mirrors and lenses Lens laws Optical defects and their correction (long-sightedness and short-sightedness) Actions of various optical devices (telescope, camera, microscope) Optical components such as lenses, mirrors, prisms, light sources and silk-screen foils are coated with magnetic foil and can be attached to a magnetic board or a whiteboard (U10030 or U10031) in seconds. Experiments can be performed without the need to dim the room lighting. A diode laser with 5 beams, serves as the light source (not included). The number of emitted beams can be selected using a drilled metal plate placed at the front of the laser. Six silk-screen foils (eye, camera, Galileo telescope, Kepler telescope, spherical aberration and correction, 360° angle scale) with pre-printed positions make setting-up experiments easier. Most optical elements have a base length of 100 and a thickness of 15 mm. Equipment Set includes: 6 Foils (410 mm x 290 mm) 1 Biconcave lens 4 Biconvex lenses 1 Plano-concave lens 2 Hemispherical bodies (45 mm and 75 mm radius) 1 Plane mirror 1 Concave mirror 1 Convex mirror 1 Flat parallel plate (60 mm x 100 mm) 1 Prism 1 Wave guide 1 Experiment guide Supplied with Diode laser, 5 beams