Edwin Herbert Land, American scientist and inventor, c 1935.
© National Media Museum / Science & Society Picture Library
The invention of the one-step developing and printing proces by physicist and inventor, Edwin Land (1909-1991), created a revolution in photography, whereby dry photographs in either colour or black and white could be produced instantly. In 1929, Land patented the first modern filters to polarise light, but it was through his Polaroid Corporation (launched 1937), that he acheived widespread recognition. His instant camera was demonstrated for the first time in 1947.