Camera Obscura

The principal, known since ancient times, that enables an optical device to project its surroundings onto a screen. In 1038 A.D., Arab scholar Al Hazen described a working model of the camera obscura but did not construct an actual device. In 1267 A.D. Roger Bacon? was inspired by Al Hazen’s work to construct devices that created convincing optical illusions and later to project images of the Sun, a technique that was used to safely view solar eclipses. The principal was first detailed in writings by Leonardo da Vinci? in 1490 A.D.

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