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The system found 25 answers for optical instrument crossword clue. Our system collect crossword clues from most populer crossword, cryptic puzzle, quick/small crossword that found in Daily Mail, Daily Telegraph, Daily Express, Daily Mirror, Herald-Sun, The Courier-Mail, Dominion Post and many others popular newspaper. Enter the answer length or the answer pattern to get better results.

Optical Instrument Crossword Clue and Answers List

PERISCOPE Optical instrument
PROJECTOR Optical instrument
TELESCOPE Optical instrument
MICROSCOPE Optical instrument
CATOPTRON A reflecting optical glass or instrument; a mirror.
FIELD The space covered by an optical instrument at one view.
CHROMASCOPE An instrument for showing the optical effects of color.
DIOPTRA An optical instrument, invented by Hipparchus, for taking altitudes, leveling, etc.
OCULAR The eyepiece of an optical instrument, as of a telescope or microscope.
DEFINITION Distinctness or clearness, as of an image formed by an optical instrument; precision in detail.
GRAPHOSCOPE An optical instrument for magnifying engravings, photographs, etc., usually having one large lens and two smaller ones.
STAUROSCOPE An optical instrument used in determining the position of the planes of light-vibration in sections of crystals.
ERECTOR An attachment to a microscope, telescope, or other optical instrument, for making the image erect instead of inverted.
PHANTASCOPE An optical instrument or toy, resembling the phenakistoscope, and illustrating the same principle; -- called also phantasmascope.
THAUMATROPE An optical instrument or toy for showing the presistence of an impression upon the eyes after the luminous object is withdrawn.
DEFINE To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly; as, the defining power of an optical instrument.
APERTURE The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
EYEPIECE The lens, or combination of lenses, at the eye end of a telescope or other optical instrument, through which the image formed by the mirror or object glass is viewed.
SPECTACLE An optical instrument consisting of two lenses set in a light frame, and worn to assist sight, to obviate some defect in the organs of vision, or to shield the eyes from bright light.
SPECTROSCOPE An optical instrument for forming and examining spectra (as that of solar light, or those produced by flames in which different substances are ...
PHONEIDOSCOPE An instrument for studying the motions of sounding bodies by optical means. It consists of a tube across the end of which is stretched a film o...
POWER The degree to which a lens, mirror, or any optical instrument, magnifies; in the telescope, and usually in the microscope, the number of times ...
PHANTASMAGORIA An optical effect produced by a magic lantern. The figures are painted in transparent colors, and all the rest of the glass is opaque black. Th...
SEXTANT ...ween objects, -- used esp. at sea, for ascertaining the latitude and longitude. It is constructed on the same optical principle as Hadley's q...
STEREOSCOPE An optical instrument for giving to pictures the appearance of solid forms, as seen in nature. It combines in one, through a bending of the ray...
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