• Please use real names.

    Greetings to all who have registered to OPF and those guests taking a look around. Please use real names. Registrations with fictitious names will not be processed. REAL NAMES ONLY will be processed

    Firstname Lastname

    Register

    We are a courteous and supportive community. No need to hide behind an alia. If you have a genuine need for privacy/secrecy then let me know!
  • Welcome to the new site. Here's a thread about the update where you can post your feedback, ask questions or spot those nasty bugs!

Dr Klaus Schmitt

Well-known member
Well this is a bit on the scientific side, sheet Mica in polarized UV and visible light, different pol. angles.
If interested about the colors and why, I refer to the work of Mr Michel-Levy

170635357.x3bjL8iz.MICAPolVISUVBVBU20200419opt.gif
 
Top