Binoculars
Binoculars
Binoculars (pronunciation: /bɪˈnɒkjʊlərz/), also known as field glasses, are a type of two-telescope optical instrument that allows the user to view distant objects more clearly. The term "binoculars" originates from the Latin words "bini" meaning "two" and "oculus" meaning "eye".
History
The invention of binoculars is attributed to the Italian scientist Galileo Galilei in the 17th century. However, the modern design of binoculars we see today was not developed until the 19th century.
Design and Function
Binoculars are designed with two parallel optical tubes, allowing you to use both eyes when viewing distant objects. The key components of binoculars include the eyepiece, objective lens, and prism (either Porro prism or Roof prism). The eyepiece magnifies the image, which is first captured by the objective lens. The prism then corrects the orientation of the image.
Types of Binoculars
There are several types of binoculars, including Porro prism binoculars, Roof prism binoculars, and Image-stabilized binoculars. Each type has its own advantages and is suited to specific applications.
Applications
Binoculars are used in a variety of fields such as birdwatching, astronomy, and military applications. They are also commonly used in spectator sports and outdoor recreational activities.
See Also
References
External Links
External links
- Medical encyclopedia article on Binoculars
- Wikipedia's article - Binoculars
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