THANKS KEN, YOU ARE RIGHT, HERE IT IS.

[Guest guest]

My little childhood brain just couldn't remember that big name.

Stereoscope.

Columbia Encyclopedia

Stereoscopest & #277;r'¨¥ & #601;sk¨­p¡ä, optical instrument that presents to a

viewer

two slightly differing pictures, one to each eye, to give the effect

of depth. In normal vision the two eyes, being a certain distance

apart, see slightly different aspects of a scene. The impression of

depth is obtained when the brain combines the images. A single

photograph shows no more than what one eye would see. In a

stereoscope two photographs, taken from positions related

approximately as the positions of a person's two eyes, are placed

side by side. When a person observes these photographs, his brain

combines the separate images from each eye into a single three-

dimensional one. Scientists, among them the English physicist Sir

Wheatstone in 1838, constructed stereoscopes for use with

drawings, but suitable views were not generally available until the

development of photography. In 1849, Sir Brewster, a ish

physicist, improved the stereoscope and invented the double camera

for taking stereoscopic views. Oliver Wendell Holmes invented the

kind of stereoscope that, together with a collection of stereoscopic

views, became a popular instrument of home entertainment in the

United States until the advent of the home phonograph and the radio.

The principle of the stereoscope is applied in binocular field

glasses and binocular microscopes.

mary lou

[Guest guest]

on the antique market (with pictures) they could go as high as $150.00

THANKS KEN, YOU ARE RIGHT, HERE IT IS.

My little childhood brain just couldn't remember that big name.Stereoscope.Columbia EncyclopediaStereoscopest & #277;r'¨¥ & # 601;sk¨­p¡ä, optical instrument that presents to a viewer two slightly differing pictures, one to each eye, to give the effect of depth. In normal vision the two eyes, being a certain distance apart, see slightly different aspects of a scene. The impression of depth is obtained when the brain combines the images. A single photograph shows no more than what one eye would see. In a stereoscope two photographs, taken from positions related approximately as the positions of a person's two eyes, are placed side by side. When a person observes these photographs, his brain combines the separate images from each eye into a single three-dimensional one. Scientists, among them the English physicist Sir Wheatstone in 1838, constructed stereoscopes for use

with drawings, but suitable views were not generally available until the development of photography. In 1849, Sir Brewster, a ish physicist, improved the stereoscope and invented the double camera for taking stereoscopic views. Oliver Wendell Holmes invented the kind of stereoscope that, together with a collection of stereoscopic views, became a popular instrument of home entertainment in the United States until the advent of the home phonograph and the radio. The principle of the stereoscope is applied in binocular field glasses and binocular microscopes.mary lou