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
Instant camera it was available in markets outside the US. Instax became available in a smaller size with the introduction of the Instax Mini/Cheki line. Polaroid's Mio was available in the US, it uses the same film as the Fujifilm Instax Mini series but were rebranded as Mio film. None of Fujifilm's products were sold officially in the United States, although Polaroid-compatible film is available through some larger photographic suppliers. With the announcement in 2008 of Polaroid ceasing film production, Instax and peel apart type films became available in more channels. In 2014, Lomography funded the creation of a new instant camera,