• Includes 12 Experiments on the Subject of Ray Optics: ..
• Pinhole camera 
• Focal length of a converging lens
• Lens equation
• Aberrations
• Image formation in the eye (model of an eye)
• Short-sightedness and its correction
• Long-sightedness and its correction
• Magnifying glass
• Microscope

Product Information: ..
The Kröncke optical system provides robust reliability and offers all the precision needed for student exercises and practical courses in numerous experiments on ray and wave optics. The experiments are carried out in traditional fashion using the white light of a halogen lamp, the filament of which can be projected through an adjustable slit to observe interference in particular. All optical components are mounted in diaphragms with no stems and can easily be adjusted vertically and with precision into the optical light path when mounted on optical riders. Optical riders can freely move on the U-profile rail of an optical bench and can be attached with a minimum of force.
In the scope of delivery: comprehensive experiment descriptions (student / instructor version).