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.

Small refraction tank - Video

demonstration image
Catalog: 
6A42.43B
Location: 
3_1
Video Encyclopedia :Position a lamp in an opaque tank so the filament cannot be seen, then add water until the light from the filament is seen over the edge of the tank.

Reflective Hologram of Pig

demonstration image
Catalog: 
6A20.35
Location: 
Fa4
A plastic pig rests between two concave mirrors and projects and image that appears to be the real thing. Moving slightly to the side it goes away.

Multiple Slit and laser

There are several patterns to choose from. ASU copyright
Catalog: 
6C10.15C
Location: 
Ga2
PASCO 8523 multiple slit set has many variations of multiple slit themes on a disk. The disk is rotated before a laser to show:
4 double slits
1 variable slit
4 comparisons of single/double slits of same width
double/double slits
double triple slits
set of 4 multiple slits (2,3,4,5 slits)

Real image formation - Video

demonstration image
Catalog: 
6A60.30
Location: 
3_1
Video Encyclopedia :With a source and screen at the ends of a long optical bench, show the two positions a lens will produce an image.

Energy at a focal point - Video

demonstration image
Catalog: 
6A20.60A
Location: 
3_1
Video Encyclopedia :Remove the projection head of an overhead projector and hold a piece of paper at the focal point until it bursts into flame.

Polaroids on an Optical Bench

demonstration image
Catalog: 
6H10.101
Location: 
Gc2
Demonstrates polarization of light using 2 or 3 Polaroid films mounted on an optical bench.

Lens magnification - Video

demonstration image
Catalog: 
6A60.35
Location: 
3_1
Video Encyclopedia :Place various lenses between a backlit grid and the class.

Acrylic/lead glass refraction - Video

demonstration image
Catalog: 
6A42.47
Location: 
3_1
Video Encyclopedia :Hold a stick behind stacked lead glass and acrylic blocks. The image of the stick is shifted when viewed off the normal to the surface of the blocks.

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