Lensless Photography in America
This chapter discusses another variant of related ideas that was dubbed ‘lensless photography’ in the USA. Emmett Leith, a research engineer at a military contract establishment, Willow Run Laboratories in Michigan, conceived a technique of processing the images created by synthetic aperture radar. Gradually, from the mid-1950s, he extended these ideas by melding electrical engineering practice with physical optics, both of which were expanding rapidly. The result, with Juris Upatnieks during the early 1960s, was a new imaging technique that yielded results superior to Gabor's. When they began using a laser as light source with high resolution film, they obtained remarkable three-dimensional images. Their publicity generated a worldwide explosion of scientific and engineering interest.
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