Demos: 7A-32 Lens Systems and Defects
With the use of two of the Small Optics Sets (Demonstration 7A-14) you can show your class different Lens Systems and Defects. By using one or two convex lenses with the laser box you can demonstrate: simple magnifier; telescope; spherical aberration; nearsightedness; farsightedness. For your ease, diagrams for placing the lenses and lasers for each effect. You can readily setup each one under the document camera for your class to observe.