Light Emission Range of the I phone

Nowadays, people rely completely on their phones for varieties of things, so we spend much of our time on our phones,which increase our exposure to these devices. Therefore, in this lab, the range of light emission of the I-Phones is tested using Red Tid USB650 UV probe. To do this experiment, flashlight app from the apple store was downloaded. The uniqueness of this app is the ability to emit the highest light frequency as well as the lower one. This can somehow measure the light emission capacity of the Iphone. the light source was placed in front of the Red Tid UV detector, which in turn can analyse the collected data and plot it as wave length vs Intensity as shown in Figure 1. The two graphs show two peaks. The first one is at 450 nm, which corresponds to the violet blue color, and this color in fact is a very cold color that does not produce lots of heat. The frequency of this peak increases as the light get dimmer. The other peak ranges from 530 to 605 nm depending on the brightness of the flash light, thus it corresponds to the yellow-orange colors.