Binocular
Binocular
Binocular (pronunciation: /bɪˈnɒkjʊlər/) is a term derived from Latin, where "bini" means double and "oculus" means eye. It refers to any optical device, such as a pair of telescopes, designed for simultaneous use by both eyes. This allows for a more detailed and three-dimensional view of the subject, and also provides a perception of depth, known as stereopsis.
Etymology
The term "binocular" comes from the Latin "bini" for double and "oculus" for eye. The combination of these two words gives us "binocular", which literally means "two eyes".
Related Terms
- Monocular: An optical device designed for use with one eye.
- Telescope: An optical instrument designed to make distant objects appear closer.
- Stereopsis: The perception of depth and three-dimensional structure obtained on the basis of visual information deriving from two eyes by individuals with normally developed binocular vision.
- Binocular Vision: The ability to maintain visual focus on an object with both eyes, creating a single visual image. Lack of binocular vision is normal in many animals, but abnormal in humans.
- Binocular Disparity: The difference in image location of an object seen by the left and right eyes, resulting from the eyes’ horizontal separation (parallax). The brain uses binocular disparity to extract depth information from the two-dimensional retinal images in stereopsis.
See Also
External links
- Medical encyclopedia article on Binocular
- Wikipedia's article - Binocular
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