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eyepiece

   Also found in: Medical, Encyclopedia, Wikipedia 0.03 sec.
eye·piece  (ps)
n.
The lens or lens group closest to the eye in an optical instrument; an ocular. Also called eyeglass.

eyepiece [ˈaɪˌpiːs]
n
(Physics / General Physics) the lens or combination of lenses in an optical instrument nearest the eye of the observer

eyepiece  (ps)
The lens or group of lenses closest to the eye in an optical instrument such as a telescope or microscope.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.eyepieceeyepiece - combination of lenses at the viewing end of optical instruments
binoculars, field glasses, opera glasses - an optical instrument designed for simultaneous use by both eyes
lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images
light microscope - microscope consisting of an optical instrument that magnifies the image of an object
optical telescope - an astronomical telescope designed to collect and record light from cosmic sources
graticule, reticle, reticule - a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
sights - an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument
Translations
eyepiece [ˈaɪpiːs] Nocular m
eyepiece [ˈaɪpiːs] n [microscope, telescope] → oculaire m
eye shadow eye-shadow [ˈaɪʃædəʊ] nombre f à paupières


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? Mentioned in ? References in periodicals archive
 
The objective lens and eyepiece assemblies should not be loose but have free movement.
Also available are a "bright light" metal halide light source and 0 to 180[degrees] adjustable binoculars with wide field eyepieces.
The number will usually be somewhere between 15 and 22mm and tells you how far you can hold the binoculars eyepiece (the ocular lens) from your eyes and still see the entire scene.
 
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