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
Polaroid Corporation PLR IP Holdings, LLC. Former Executive Vice President and General Manager – Americas, Scott W. Hardy was named as the new President of Polaroid Corporation and PLR IP Holdings, LLC. The majority of employees remained in their positions at the company's Minnetonka, Minnesota headquarters as well as office locations in Boston, New York and Toronto. On June 19, 2009, the new holding corporation for Polaroid, PLR IP Holdings, LLC announced an exclusive 5-year agreement with Summit Global Group to produce and distribute Polaroid-branded digital still cameras, digital video cameras, digital photo frames and PoGo-branded mobile products. Summit Global Group added