Star light, Star bright
Plastic holiday star using a polarizing filer and star transmission grating. [From the 2014 After Image photo contest.]—Robert Schalck, OSA Senior Member, North Bend, Ore., USA
Plastic holiday star using a polarizing filer and star transmission grating. [From the 2014 After Image photo contest.]—Robert Schalck, OSA Senior Member, North Bend, Ore., USA