Visual Dictionary Online


Powered by

prism binoculars [1]click to hear

Optical instrument made up of two identical telescopes, one for each eye; it magnifies both near and distant objects.
prism binoculars [1] body focusing ring central focusing wheel eyepiece bridge

body click to hear

Cylindrical body of the binoculars that houses the optical system and through which the light rays pass.

focusing ring click to hear

Ring on each eyepiece for manually correcting for the difference between the user’s eyes.

central focusing wheel click to hear

Focusing ring for both the objective lenses; it is used to manually adjust the sharpness of the image.

eyepiece click to hear

Optical disk or system of disks through which the eye sees the image produced by the lens.

bridge click to hear

Part of the frame joining the two telescopes.