MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
This modern light source, a light emitting diode (LED) with a focused beam, is required to obtain sharp images of a target and is bright enough to use a without a blackout. The wooden optical bench allows for fairly precise experiments in the classroom and consists of a 1.5 meter rail on which carriages are placed against a millimeter scale. Holders for light sources, lenses and screens are placed on the apparatus so that image formation can be observed.
Model release not required. Property release not required.