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 (film) Polaroid (film) Polaroid is an upcoming American supernatural horror film directed by Lars Klevberg, based on his 2015 short film of the same name. It follows high school loner Bird Fitcher who has no idea what dark secrets are tied to the vintage Polaroid camera she stumbles upon, but it does not take long to discover that those who have their picture taken meet a tragic ending. Dimension Films was announced to adapt the 2014 short film "Polaroid", written and directed by Norwegian director Lars Klevberg. Chris Bender, Jake Weiner and Jake Wagner will produce in Benderspink, Roy Lee in