21 February is reserved to Edwin Land

21 February is reserved to Edwin Land
On this day in 1947, the founder of Polaroid, Edwin Land, demonstrated instant photography at a meeting of the Optical Society of America in New York City.
Prior to World War II, Land’s company, Polaroid, had made sheets of plastic that polarized light. In 1943 Land came up with the idea of applying that technology to build a camera that could develop photos within minutes.

The camera contained film for creating negatives and sheets for printing the final picture; in between were chemical reagents that transferred images from film to photograph. Polaroid’s Model 95 camera went on sale the following year.

Bio:
http://www.biography.com/people/edwin-land-9372429

Reference:
https://www.acs.org/content/acs/en/education/whatischemistry/landmarks/land-instant-photography.html

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