optical instrument

optical instruments

Definitions of optical instrument
  1. noun
    an instrument designed to aid vision
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    binoculars, field glasses, opera glasses
    an optical instrument designed for simultaneous use by both eyes
    esophagoscope, oesophagoscope
    an optical instrument for examining the inside of the esophagus
    jeweler's glass
    an optical instrument used by jewelers; has one or more lenses and is used to view features not readily seen
    an optical instrument that provides a view of an otherwise obstructed field
    an optical instrument that projects an enlarged image onto a screen
    an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument
    eyeglasses, glasses, specs, spectacles
    optical instrument consisting of a frame that holds a pair of lenses for correcting defective vision
    prism spectroscope, spectroscope
    an optical instrument for spectrographic analysis
    eyeglasses having two focal lengths, one for near vision and the other for far vision
    a sighting device in an aircraft for aiming bombs
    an optical projector that gives images of both transparent and opaque objects
    front projector
    a projector for digital input
    tight-fitting spectacles worn to protect the eyes
    gun-sight, gunsight
    a sight used for aiming a gun
    eyeglasses that are held to the eyes with a long handle
    mass spectrometer, spectrometer
    spectroscope for obtaining a mass spectrum by deflecting ions into a thin slit and measuring the ion current with an electrometer
    cine projector, film projector, movie projector
    projects successive frames from a reel of film to create moving pictures
    overhead projector
    a projector operated by a speaker; projects the image over the speaker's head
    spectacles clipped to the nose by a spring
    slide projector
    projector that projects an enlarged image of a slide onto a screen
    a spectroscope by which spectra can be photographed
    dark glasses, shades, sunglasses
    spectacles that are darkened or polarized to protect the eyes from the glare of the sun
    type of:
    a device that requires skill for proper use
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