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His device used short-focus lenses. Stratton used a one-tube, monocular device because this also reverses left and right and he wished to set up an experiment without distortion of depth perception. [5] In 1931 Theodor Erismann and Ivo Kohler conducted a series of experiments using mirror-prismatic upside down goggles employing only one mirror. [6]
Right and left were identical variable power lenses with distance and reading power centers in the upper and lower part of the lens, respectively. The glazing was made to accommodate eye position changes from distance viewing to reading. The point of reading is about 14 mm below and 2 mm to the nasal side in comparison to distance viewing.
Inuit snow goggles function by reducing exposure to sunlight, not by reducing its intensity. Since the 13th century and until the spread of contemporary UV-shielding spectacles against snowblindness, Inuit made and wore snow goggles of flattened walrus or caribou ivory with narrow slits to look through to block almost all of the harmful reflected rays of the sun.
Each card has a number on one side and color on the other. Which card or cards must be turned over to test the idea that if a card shows an even number on one face, then its opposite face is blue? The Wason selection task (or four-card problem ) is a logic puzzle devised by Peter Cathcart Wason in 1966.
Oliver Goldsmith is a British eyewear design company established in London in 1926 by Phillip Oliver Goldsmith. Under the directorship of his son Charles "Oliver" Goldsmith, grandsons Andrew Oliver and Raymond, and great-granddaughter Claire Goldsmith, the brand became known worldwide for its innovative designs for glasses and sunglasses worn by celebrities such as Diana Dors, Michael Caine ...
Smart glasses could be used as a body camera.In 2018, Chinese police in Zhengzhou and Beijing were using smart glasses to take photos which are compared against a government database using facial recognition to identify suspects, retrieve an address, and track people moving beyond their home areas.
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