His most notable success was the instant one-step Polaroid photographic process. ... Eastman Kodak used polarized filters in their cameras in 1935, and American Optical marketed polarized sunglasses in ... As a further convenience, the battery that powered the camera was built into the film pack rather than the camera.
|Title||:||From talking drums to the Internet|
|Author||:||Robert Gardner, Dennis Shortelle|
|Publisher||:||Abc-Clio Inc - 1997|