Skin Cancer Detection

Step 4: Apendix

For those that wish to make an adjustable one, insert a second lens into the rubber holder (in front of the lens attached to the pipe) so that rotating the rubber grip will change the angle of polarization of one lens to the other (this will limit the light going through the lenses also, until a 90 ^o change blocks most if not all of the light.   Not so useful for detection, but maybe for further experimentation for other things.