6 Optics

Crossed Gratings & Laser

Catalog: 
6D20.50
Location: 
Ga3
A laser beam passes throught two crossed gratings of various types.

Arago's (Poisson's) spot

Laser and Lens.
Catalog: 
6C20.10A
Location: 
Ga3
Shine a diffused laser beam at a small sphere or disk. The projected image shows Argo's spot.

Light Pipes - Video

demonstration image
Catalog: 
6A44.40C
Location: 
3_1
Video Encyclopedia :Shine a laser into a curved plastic rod.

Astigmatism - Video

demonstration image
Catalog: 
6A65.34
Location: 
3_1
Video Encyclopedia :Focus light from a circular hole on a screen, then add a cylindrical lens.

Optical path in fibers - Video

demonstration image
Catalog: 
6A44.41
Location: 
3_1
Video Encyclopedia :Shine a laser down a bent rectangular bar.

Color Mixing

Color mixing on the overhead projector
Catalog: 
6F10.23
Location: 
Gb3
The colored paddles (filters) can be overlapped and then held up to a light or placed on an overhead to see the resulting color.

Spherical aberration - Video

demonstration image
Catalog: 
6A65.40
Location: 
3_1
Video Encyclopedia :Project an image with a spherical planoconvex lens. Stop the outer portion of the lens, then the center.

Laser waterfall - Video

demonstration image
Catalog: 
6A44.45
Location: 
3_1
Video Encyclopedia :Shine a laser down the center of a nozzle and it follows the water stream.

Hinged mirrors - Video

Catalog: 
6A10.40B
Location: 
3_1
Video Encyclopedia :Mirrors angled at 60 degrees give one object and five images arranged in a hexagon.

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