Show focusing of a spherical (cylindrical) convex lens						Read More
					
						Show focusing of a circular lens						Read More
					
						Show focusing of a hyperbolic lens						Read More
					
						Use principal rays to locate a real image produced by a convex lens						Read More
					
						Demonstrate that a lens focuses light						Read More
					
						Demonstrate that a lens focuses light						Read More
					
						Demonstrate that a paraffin lens can focus microwaves						Read More
					
						Show the real image of a converging lens						Read More
					
						Show the systematics of real image formation by a converging lens						Read More
					
						Locate both real and virtual images of a convex lens						Read More
					
						Illustrate the idea of depth of field of a (camera) lens, and to locate the near and far points						Read More
					
						Shows that focal properties of a lens depend on the medium in which the lens is located						Read More
					
						Demonstrate focusing of parallel rays in a counterintuitive way						Read More
					
						Encourage thought regarding how an image is formed						Read More
					
						Determine the focal point of a concave lens						Read More
					
						Use the three principal rays to locate the virtual image of a diverging lens						Read More
					
						Illustrate light rays for spherical aberration						Read More
					
						Demonstrate spherical aberration using rays						Read More
					
						Illustrate rays for chromatic aberration						Read More
					
						Show chromatic aberration in a convex lens						Read More
					
						Show the effect of chromatic aberration in a lens						Read More
					
						Illustrate rays for on-axis astigmatism						Read More
					
						Demonstrate off-axis astigmatism with a spherical lens.						Read More
					
						Illustrate coma						Read More
					
						Show pincushion and barrel distortion						Read More
					
						Fast and simple way to show pincushion and barrel distortion						Read More
					
						A slightly more complicated but better way to show pincushion and barrel distortion						Read More
					
						Illustrate pincushion and barrel distortion and correction thereof						Read More
					
						Distortion by a simple lens						Read More
					
						Demonstrate construction of a Fresnel lens						Read More
					
						To allow individual experience with plastic Fresnel lenses						Read More
					
						Demonstrate magnification by a thin plastic Fresnel lens						Read More
					
						Illustrate the optics of an optically programmed traffic signal						Read More
					
						Show an application of the Fresnel lens						Read More
					
						Illustrate how Fresnel lenses are used in theater spotlights						Read More
					
						Demonstrate a number of ray optics phenomena						Read More
					
						Show application of anamorphic lenses to wide-screen movies						Read More