Heat-sensitive film - Thanks to this special film you will see your iPhone change color according to temperature. It 'made with a high precision laser cutting, which makes it perfect for the shape of the back of the phone.
In fact, the camera is free from any obstacle, but the material is very thin, less than a millimeter, so as to be almost imperceptible and as if it were an integrated part of the phone.
The material begins to react around 35 °, close to the temperature of the human body, so just hold the phone in hand to see the first color variations.
The film "Cold" is black, as the temperature rises, it will vary from red to yellow when there is little heat, and then move to green to dark blue with the highest.
Heat-sensitive film - If the ambient temperature is very high or surface is in contact with something hot, the whole film will be colored . The nice thing is that it is colored exactly where it comes into contact with heat, so when you keep up the phone, we will see engraved on the back the shape of the fingers. Once cooled the film will return to black.
The find of rflaserworks.com
