prism binocular
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prism binocular — noun : a binocular with shortened telescopic tubes in each of which light rays entering through the objective lens are reflected by two Porro prisms before passing through the eyepiece where finally an erect virtual image is formed often used in… … Useful english dictionary
Binocular rivalry — is a phenomenon of visual perception in which perception alternates between different images presented to each eye. When one image is presented to one eye and a very different image is presented to the other, instead of the two images being seen… … Wikipedia
binocular — binocularity, n. binocularly, adv. /beuh nok yeuh leuhr, buy /, n. 1. Usually, binoculars. Also called pair of binoculars, prism binoculars. an optical device, providing good depth effect, for use with both eyes, consisting of two small… … Universalium
porro prism — ˈpȯ(ˌ)rō noun Usage: usually capitalized 1st P Etymology: after Ignazio Porro died 1875 Italian engineer : an optical device that inverts and reverses right and left an image viewed through it, that consists usually of a pair of isosceles right… … Useful english dictionary
Schmidt-Pechan prism — A Schmidt Pechan prism is a type of optical prism used to rotate an image by 180°. They are commonly used in binoculars as an image erecting system . Compared to binoculars using a Porro prism or Abbe Koenig a binoculars using a Schmidt Pechan… … Wikipedia
Optomechanics — involves the manufacture and maintenance of optical parts and devices. A typical Porro prism binocular design showing the arrangement of lenses in the optical train and the line of sight … Wikipedia
spy|glass — «SPY GLAS, GLAHS», noun. a small telescope, especially one not requiring a tripod or other mount in order to be used: »This type of instrument was very common before the invention of the prism binocular and is well known to everyone as the… … Useful english dictionary
Binoculars — Binocular telescopes, or binoculars (also known as field glasses), are two identical or mirror symmetrical telescopes mounted side by side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular… … Wikipedia
eye, human — ▪ anatomy Introduction specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit The eye is protected from mechanical injury… … Universalium
Stereoscopy — Stereoscopy, stereoscopic imaging or 3 D (three dimensional) imaging is any technique capable of recording three dimensional visual information or creating the illusion of depth in an image. The illusion of depth in a photograph, movie, or other… … Wikipedia
