6 Optics

Infrared in spectrum - Video

demonstration image
Catalog: 
6B40.41
Location: 
3_1
Video Encyclopedia :Hold a thermopile connected to a galvanometer in different parts of a spectrum.

Deck Prism

Catalog: 
6A10.150
Location: 
Fa5
In the days before electricity, light below a vessel's deck was provided by canles, oil and kerosene lamps. All dangerous aboard a wooden ship. A clever solution for the lighting problem was the deck prism. Laid flush into the deck, small conical prisms drew light down below decks without weakening the deck planks. This solid, poured-glass prism is an exact replica of a prism taken from the Charles W. Morgan, a 19th century New England whaling ship.

Ray tracing with lenses - Video

demonstration image
Catalog: 
6A60.20
Location: 
3_1
Video Encyclopedia :Show parallel rays passing through a lens element and converging.

Concave and convex mirrors - Video

Catalog: 
6A20.10C
Location: 
3_1
Video Encyclopedia :Shine parallel beams at convex and concave mirrors. Use thread screen for display.

360 degree hologram - Video

demonstration image
Catalog: 
6Q10.10B
Location: 
3_1
Video Encyclopedia :A video of a 360 degree transmission hologram.

Microwave reflection - Video

Catalog: 
6A10.18
Location: 
3_1
Video Encyclopedia :Reflect a microwave beam off a metal plate into a receiver.

Chromatic aberration - Video

demonstration image
Catalog: 
6A65.21
Location: 
3_1
Video Encyclopedia :Project spots of light on a screen from several points on a lens. Note chromatic aberration and then add a second correction lens.

Spherical aberration in a mirror - Video

Catalog: 
6A20.20
Location: 
3_1
Video Encyclopedia :Shine parallel rays at spherical and parabolic mirror elements, noting the difference in aberration.

Resolving power - Video

demonstration image
Catalog: 
6J10.81
Location: 
3_1
Video Encyclopedia :The camera zooms in on a vertical series of back illuminated double slits, each separated by half the distance of the preceding pair.

Impossible triangles - Video

demonstration image
Catalog: 
6J11.50
Location: 
3_1
Video Encyclopedia :An optical illusion that depends on viewing angle.

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