A stereoscope is an optical device used to view stereoscopic images, which are photographs taken from two slightly different angles to create a three-dimensional effect. The device allows each eye to see one of the two images separately, which the brain then combines to perceive depth and dimension. Stereoscopes were popular in the 19th and early 20th centuries for viewing 3D photographs and are still used today in various applications, including virtual reality and 3D imaging.

英語での「stereoscope」の定義と意味

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