Ste"re*o*scope (?), n. [Stereo- +
-scope.] An optical instrument for giving to pictures the
appearance of solid forms, as seen in nature. It combines in one,
through a bending of the rays of light, two pictures, taken for the
purpose from points of view a little way apart. It is furnished with
two eyeglasses, and by refraction or reflection the pictures are
superimposed, so as to appear as one to the observer.
&fist; In the reflecting stereoscope, the rays from the two
pictures are turned into the proper direction for stereoscopic vision
by two plane mirrors set at an angle with each other, and between the
pictures. In the lenticular stereoscope, the form in general
use, the eyeglasses are semilenses, or marginal portions of the same
convex lenses, set with their edges toward each other, so that they
deflect the rays coming from the picture so as to strike the eyes as
if coming direct from an intermediate point, where the two pictures
are seen apparently as one.
Ste"re*o*scope (?), n. [Stereo- +
-scope.] An optical instrument for giving to pictures the
appearance of solid forms, as seen in nature. It combines in one,
through a bending of the rays of light, two pictures, taken for the
purpose from points of view a little way apart. It is furnished with
two eyeglasses, and by refraction or reflection the pictures are
superimposed, so as to appear as one to the observer.
&fist; In the reflecting stereoscope, the rays from the two
pictures are turned into the proper direction for stereoscopic vision
by two plane mirrors set at an angle with each other, and between the
pictures. In the lenticular stereoscope, the form in general
use, the eyeglasses are semilenses, or marginal portions of the same
convex lenses, set with their edges toward each other, so that they
deflect the rays coming from the picture so as to strike the eyes as
if coming direct from an intermediate point, where the two pictures
are seen apparently as one.
