eyepiece

Noun
  1. Combination of lenses at the viewing end of optical instruments (synset 103314410)
    is a type of: lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images
    has: graticule, reticle, reticule - a network of fine lines, dots, cross hairs, or wires in the focal plane of the eyepiece of an optical instrument
    is a part of:
    • binoculars, field glasses, opera glasses - (plural) an optical instrument designed for simultaneous use by both eyes
    • 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
    • sights - an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument
    same as: ocular

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