Showing papers on "Light pillar published in 1993"

Photo transmitting property tracing figure display device

Abstract: The utility model relates to a light propagation characteristic tracing graphic instrument. A main body is a box body whose circumference is closed, and is provided with more than two light radiating holes and an observation hole; the inner wall is black; the inner part of the box is provided with a reflecting lens and a particle generating device. Light pillar is shot into the box by a purpose-made torch; the direction of shooting is changed; the particles of a displaying light path are simultaneously released by making use of the light reflecting performance of the reflecting lens; so the process of the light propagation can be traced and observed; the actual light path is directly displayed; the propagation, the reflection, the diffraction, the superposition and the wave particle duality of light are visually demonstrated and explained. The utility model has the advantages of simple structure and convenient operation, being a teaching aid which has the value of scientific education.