Noun
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| eyepiece -
combination of lenses at the viewing end of optical instruments
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ocular |
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lens system,
lense,
lens a transparent optical device used to converge or diverge transmitted light and to form images
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optical telescope an astronomical telescope designed to collect and record light from cosmic sources
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binoculars,
field glasses,
opera glasses an optical instrument designed for simultaneous use by both eyes
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light microscope microscope consisting of an optical instrument that magnifies the image of an object
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sights an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument
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