Polaroid (polarizer) Polaroid (polarizer) Polaroid is a type of synthetic plastic sheet which is used as a polarizer or polarizing filter. A trademark of the Polaroid Corporation, the term has since entered common use. The original material, patented in 1929 and further developed in 1932 by Edwin H. Land, consists of many microscopic crystals of iodoquinine sulphate (herapathite) embedded in a transparent nitrocellulose polymer film. The needle-like crystals are aligned during manufacture of the film by stretching or by applying electric or magnetic fields. With the crystals aligned, the sheet is dichroic: it tends to absorb light which is polarized parallel to
Invented (album) think it's our best work so far. I have little complaints about it." On August 10, 2010, "My Best Theory" was released as a single, and released to radio on August 17. "Invented " was released on September 28 through Interscope Records. Upon release, "Invented" included four individual pictures, designed to look like instant camera photographs, outwith the album's standard CD artwork. "Coffee and Cigarettes" was released to radio on November 23. In May and June 2011, the group went on a headlining tour of the US. Following this, the group appeared at Glastonbury Festival in the UK. "Invented" received