What Lens Material Best Absorbs UV Light?
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We're testing different types of lenses to see which one absorbs the most ultraviolet light. We'll measure the amount of UV light that passes through each lens and compare the results.
Hypothesis
The hypothesis is that the polarized lens will best absorb ultraviolet light of all lens materials with and without tints and coatings tested.
Method & Materials
You will construct a reflecting box, gather the materials, and measure the amount of UV light that passes through each lens.
You will need a UV light meter, a reflecting box, a UV lamp arc, assorted types of spectacle lenses, a notepad, a stopwatch, and a photometer.
Results
The results of this experiment indicate that the polarized lens best absorbs UV light when compared to other lens materials with different tints and coatings tested. The #3 tints absorbed an average of 97% UV light and the lighter tints and coatings absorbed only 59%. The photometer was considerably more sensitive, giving much better data.
Why do this project?
This science project is interesting because it shows how different lens materials can provide different levels of protection from the sun's UV rays.
Also Consider
Experiment variations to consider include testing different types of lenses, such as mirrored lenses, and testing different levels of UV light.
Full project details
You can find additional information and details for this science fair project here. Have fun exploring!Related video
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