Liya+C13


 * THE STUDY OF THE LIGHT THAT SHINES THROUGH DIFFERENT OBJECTS**

Liya Chen

2012-2013

**ABSTRACT** The purpose of this study was to determine which light shines the brightest and how much light shines through different objects. There are seven layers in a pair of sunglasses, including the antireflective back, the tinting layer, the lens, the polarization layer, the antireflective coating, the UV coating, and the scratch-resistant coating. Different lights were shined through different materials and liquids, sometimes with the liquids on sunglasses, to see how much light passed through each one. It was found that light passes through clear materials more easily than darker or less transparent materials. The lamp was the brightest light source.

**EXPERIMENTAL IMPROVMENTS AND FUTURE EXPERIMENTS** An improvement that could be made to one of the experiments is using more types of lights instead of only a flashlight, a lamp, and an UV light. This would make the experiment more interesting and it would be possible to see how much light there was when each type of light source was shined through a pair of sunglasses. Some light sources that could be used are sunlight and different types of light bulbs. An experiment that could be done in the future is smearing different types of sunscreen on a pair of sunglasses and determining which one blocks the light from a UV light the most.

The entire experiment is in the file below.