L1 Light Sources and Light Rays
These demonstrations offer a simple introduction to the production and transmission of light, and to basic principles of ray optics.
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L1-01: ARC LAMP - PROJECTION OF ARC
Direct projection of side view of the arc of a carbon arc lamp Read More
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L1-02: TUNGSTEN-HALOGEN LAMP - PROJECTION OF LAMP
View an operating tungsten-halogen lamp Read More
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L1-03: LIGHT BULB WITHOUT VACUUM
Show what happens to a lighted filament in the presence of air Read More
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L1-04: POINT SOURCE - FLASHLIGHT BULB
Demonstrate optical characteristics of a "point source" Read More
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L1-05: PERSISTENCE OF A FILAMENT
Demonstrate that high-frequency AC looks like DC Read More
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L1-11: INVERSE SQUARE LAW - LIGHT BULB AND RADIOMETER
Demonstrate that light obeys the inverse square law Read More
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L1-12: INVERSE SQUARE LAW - OVERHEAD PROJECTOR AND TWO-METER STICK
Show that light obeys the inverse square law Read More
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L1-21: PINHOLE IMAGE - GROUND GLASS SCREEN
View individually a pinhole "image" Read More
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L1-22: OPTICAL BOARD - PINHOLE CAMERA
Demonstrate how a pinhole "image" is formed Read More
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L1-23: PINHOLE VIDEO CAMERA
Produce video images with a pinhole camera Read More
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L1-31: LASER LIGHT CAVITY
Demonstrate how a laser cavity works Read More
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L1-32: VISIBLE LASER
Show what the inside of a laser looks like, and to show that the laser removes lots of spectral components… Read More
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L1-33: LASER BEAM EXPANDERS
Expand a laser beam to uniform 10mm or 40mm diameter Read More
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