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