# Geometrical Optics

## L2-27: Infinity Mirror - Portable

Category: L2 Plane Mirrors
Purpose: Illusion with half-silvered mirror.

## L7-42: VIRTUAL IMAGE - MIRROR AND LENS

Purpose: Calculate the position of a virtual image and the verify this by using parallax.

## L7-41: REAL IMAGE - MIRROR AND LENS

Purpose: Determine the location of a real image in a complex lens-mirror system.

## L7-34: SLIDE PROJECTOR - DISSECTED

Purpose: Show how a slide projector works and to view its parts.

## L7-33: OVERHEAD PROJECTOR - DISSECTED

Purpose: Show how an overhead projector works and to view its components.

## L7-32: FIELD LENS

Purpose: Show what a field lens does.

## L7-31: PRINCIPAL PLANES

Purpose: Illustrate principal planes of a compound lens system.

## L7-25: GALILEAN TELESCOPE - TV

Purpose: Illustratre how a Galilean telescope works.

## L7-24: TERRESTRIAL TELESCOPE - TV

Purpose: Illustrate how a terrestrial telescope works.

## L7-23: ASTRONOMICAL TELESCOPE - TV

Purpose: Illustratre how an astronomical telescope works.

## L7-22: MICROSCOPE - TV

Purpose: Illustrate how a microscope works.

## L7-21: MAGNIFYING GLASS - TV

Purpose: Illustratre how a magnifying glass works.

## L7-15: MICROSCOPE

Purpose: Demonstrate how the optics of a microscope produces a magnified image.

## L7-14: OPTICAL BOARD - REFLECTING TELESCOPE

Purpose: Illustrate rays in one type of reflecting telescope.

## L7-13: OPTICAL BOARD - GALILEAN TELESCOPE

Purpose: Model the optics of a Galilean telescope.

## L7-12: OPTICAL BOARD - TELEPHOTO LENS

Purpose: Ilustrate the location of the principal planes in a telephoto lens.

## L7-11: OPTICAL BOARD - ASTRONOMICAL TELESCOPE

Purpose: Model the optics of an astronomical telescope.

## L7-05: VIDEO CAMERA WITH VARIOUS LENSES

Purpose: Demonstrate various lenses for a video camera.

## L7-04: DEPTH OF FIELD AND FIELD OF VIEW

Purpose: Demonstrate depth of field as a function of aperture setting, and to demonstrate field of view as a function of zoom setting on a TV lens.

## L7-03: SHUTTER SPEED OF A CAMERA

Purpose: Measure the shutter speed of a camera.
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• #### L6-01: OPTICAL BOARD - CONVERGING SPHERICAL LENS

Show focusing of a spherical (cylindrical) convex lens Read More
• #### L6-02: OPTICAL BOARD - CIRCULAR SLAB

Show focusing of a circular lens Read More
• #### L6-03: OPTICAL BOARD - HYPERBOLIC LENS

Show focusing of a hyperbolic lens Read More
• #### L6-04: OPTICAL BOARD - RAY DIAGRAM - REAL IMAGE POS LENS

Use principal rays to locate a real image produced by a convex lens Read More
• #### L6-05: OPTICAL BOARD - RAY DIAGRAM - VIRTUAL IMAGE POS LENS

Demonstrate that a lens focuses light Read More
• #### L6-06: MULTIPLE PINHOLES AND LENS RECOMBINATION

Demonstrate that a lens focuses light Read More
• #### L6-07: MICROWAVES - LENS

Demonstrate that a paraffin lens can focus microwaves Read More
• #### L6-08: REAL IMAGE OF CONVERGING LENS - LIGHT BULB

Show the real image of a converging lens Read More
• #### L6-09: REAL IMAGE OF CONVERGING LENS

Show the systematics of real image formation by a converging lens Read More
• #### L6-10: IMAGE LOCATION WITH TV CAMERA - LENS

Locate both real and virtual images of a convex lens Read More
• #### L6-11: OPTICAL BOARD - DEPTH OF FIELD

Illustrate the idea of depth of field of a (camera) lens, and to locate the near and far points Read More
• #### L6-12 MAGNIFYING LENS IN WATER

Shows that focal properties of a lens depend on the medium in which the lens is located Read More
• #### L6-13: OPTICAL BOARD - PARALLEL RAY FOCUS

Demonstrate focusing of parallel rays in a counterintuitive way Read More
• #### L6-14: IMAGE OF CONVEX LENS - WITH AND WITHOUT BAFFLE

Encourage thought regarding how an image is formed Read More
• #### L6-21: OPTICAL BOARD - DIVERGING SPHERICAL LENS

Determine the focal point of a concave lens Read More
• #### L6-22: OPTICAL BOARD - RAY DIAGRAM - VIRTUAL IMAGE NEG LENS

Use the three principal rays to locate the virtual image of a diverging lens Read More
• #### L6-31: STRING MODEL - SPHERICAL ABERRATION

Illustrate light rays for spherical aberration Read More
• #### L6-32: OPTICAL BOARD - SPHERICAL ABERRATION IN LENS

Demonstrate spherical aberration using rays Read More
• #### L6-33: STRING MODEL - CHROMATIC ABERRATION

Illustrate rays for chromatic aberration Read More
• #### L6-34: OPTICAL BOARD - CHROMATIC ABERRATION IN LENS

Show chromatic aberration in a convex lens Read More
• #### L6-35: CHROMATIC ABERRATION - POINT SOURCE AND 20 CM LENS

Show the effect of chromatic aberration in a lens Read More
• #### L6-36: STRING MODEL - ASTIGMATISM

Illustrate rays for on-axis astigmatism Read More
• #### L6-37: ASTIGMATISM

Demonstrate off-axis astigmatism with a spherical lens. Read More

• #### L6-39: DISTORTION - PINCUSHION AND BARREL WITH 2 IRISES

Show pincushion and barrel distortion Read More
• #### L6-40: DISTORTION - PINCUSHION AND BARREL

Fast and simple way to show pincushion and barrel distortion Read More
• #### L6-41: DISTORTED IMAGE - PINCUSHION AND BARREL

A slightly more complicated but better way to show pincushion and barrel distortion Read More
• #### L6-42: DISTORTION AND CORRECTION

Illustrate pincushion and barrel distortion and correction thereof Read More
• #### L6-43: DISTORTED PERSPECTIVE

Distortion by a simple lens Read More
• #### L6-51: OPTICAL BOARD - FRESNEL LENS

Demonstrate construction of a Fresnel lens Read More
• #### L6-52: FRESNEL LENSES - MISCELLANEOUS

To allow individual experience with plastic Fresnel lenses Read More
• #### L6-53: FRESNEL LENS MAGNIFIER

Demonstrate magnification by a thin plastic Fresnel lens Read More
• #### L6-54: OPTICALLY PROGRAMMED TRAFFIC SIGNAL - MODEL

Illustrate the optics of an optically programmed traffic signal Read More
• #### L6-55: FRESNEL FLASHLIGHT

Show an application of the Fresnel lens Read More
• #### L6-56: FRESNEL SPOTLIGHT

Illustrate how Fresnel lenses are used in theater spotlights Read More
• #### L6-71: OPTICAL DISC

Demonstrate a number of ray optics phenomena Read More
• #### L6-91: ANAMORPHIC LENS

Show application of anamorphic lenses to wide-screen movies Read More
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