35 mm Slide Projector (Kodak)

Achromatic Prism

Three combinable prisms of different materials demonstrate how chromatic aberration can be corrected. The smallest and largest prisms combined produce deflection without dispersion (achromatic prism). The two smallest combined produce …

Action of a Prism

Demonstrates dispersion of white light through a prism, showing that refractive index depends on wavelength. Students observe the continuous visible spectrum produced when shorter wavelengths (violet) refract more than longer …

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Deflection and Dispersion

Compares deflection and chromatic dispersion across three prism materials (acrylic, glass, ethyl cinnamate). Students learn that deflection angle depends on refractive index while spectral width depends on material dispersion -- …

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Land Effect

Two projectors overlay a black-and-white image with a red-filtered image of the same scene. Students perceive blues, greens, and other colors that are physically absent, demonstrating that color vision depends …

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Lasers and White Light

Compares diffraction of three individual laser wavelengths (red, green, blue) with white light from a slide projector through the same grating. Students see discrete laser spots at specific angles alongside …

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Rainbow

A water-filled spherical flask models a giant raindrop. Students observe rainbow formation through refraction at entry, internal reflection off the back surface, and refraction at exit — with dispersion separating …