SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY
The mirror stereoscope built for the English physicist and inventor Charles Wheatstone in 1832. Two mirrors are placed at 90Âº to each other reflecting two upright panels which are equidistant from the mirrors. The viewer's left eye sees the reflected image of the left panel and simultaneously the right eye sees the right panel's image. As his stereoscope predated by seven years Daguerre's invention of the Daguerreotype, he initially had to demonstrate stereoscopy with simple line drawings, but by 1841 he commissioned. Though binocular vision, the basis of stereoscopy, had been recognised by Euclid, Galen, and Leonardo da Vinci, it was Wheatstone, the founder of the science of stereoscopy, who realized that the illusion of three-dimensional depth could be produced artificially.
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