200-Year-Old Device Makes Comeback With Kickstarter's Help

A device that was developed over 200 years ago is making a comeback, thanks to Kickstarter. Patented in 1806, the camera lucida was a common optical drawing tool that helped artists accurately sketch objects, but later fell out of use.

According to Encyclopaedia Britannica, here's how it works:

"It consists of a four-sided prism mounted on a small stand above a sheet of paper. By placing the eye close to the upper edge of the prism so that half the pupil of the eye is over the prism, the observer is able to see a reflected image of an object situated in front of the prism, apparently lying on the paper. He can then trace the image with a pencil. Read more...

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