About the film archive
Learn about the history behind our documentary film archive from the 1940s.
A look at the manufacture of optical lenses, and their many uses throughout the different industries; from microscopes to spectacles to full use in the war effort.
Manufacture of optical glass
Optical glass is ground and polished to an incredible accuracy. This film shows how the sand is purified and bilted and how the pieces of glass are smoothed and polished in lenses for optical metrometers, survey instruments, microscopes, telescopes and camera lenses.
(Films of Britain - British Council Film Department Catalogue - 1946)
All films are subject to the Creative Commons licence guidelines.
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