A Study on the Design and Construction of UV Lens Tester
Abstract
UV ray is dangerous to eyes and retinal. It causes cataract, glaucoma, vision loss and blind. Therefore, UV sunglasses must provide a good quality to protect UV ray. The objective of this study is to design and construction of UV lens tester. Arduino microcontroller is used to control and display the %UV protection. The design and build the UV lens tester started with finding a proper UV source and UV sensor. Then the Arduino code is uploaded to the microcontroller. The constructed UV lens tester is easy to use. The output voltage and %UV protection are digitally displayed on LCD. This equipment can be used as a primary UV lens tester. The lens coated with UV protection material can protect 100% UV ray. However, the normal lens without UV protection is also possible to protect UV ray if increasing the lens thickness.
Keywords : ultraviolet sensor, Arduino, microcontroller, UV lens
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