optical device
English Thesaurus
1. a device for producing or controlling light (noun.artifact)
| hypernym | : | device, |
| definition | : | an instrumentality invented for a particular purpose (noun.artifact) |
| hyponym | : | autofocus, |
| definition | : | an optical device for focussing a camera or other instrument automatically (noun.artifact) |
| hyponym | : | biprism, |
| definition | : | an optical device for obtaining interference fringes (noun.artifact) |
| hyponym | : | camera lucida, |
| definition | : | an optical device consisting of an attachment that enables an observer to view simultaneously the image and a drawing surface for sketching it (noun.artifact) |
| hyponym | : | coelostat, |
| definition | : | optical device used to follow the path of a celestial body and reflect its light into a telescope; has a movable and a fixed mirror (noun.artifact) |
| hyponym | : | collimator, |
| definition | : | optical device consisting of a tube containing a convex achromatic lens at one end and a slit at the other with the slit at the focus of the lens; light rays leave the slit as a parallel beam (noun.artifact) |
| hyponym | : | diffraction grating, grating, |
| definition | : | optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum (noun.artifact) |
| hyponym | : | diffuser, diffusor, |
| definition | : | optical device that distributes the light of a lamp evenly (noun.artifact) |
| hyponym | : | kerr cell, |
| definition | : | optical device consisting of a transparent cell with two electrodes between two polarizing media; passes light only if the two planes of polarization are parallel; used as a high-speed shutter or to modulate a laser beam (noun.artifact) |
| hyponym | : | laser, optical maser, |
| definition | : | an acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light (noun.artifact) |
| hyponym | : | lens, lens system, lense, |
| definition | : | a transparent optical device used to converge or diverge transmitted light and to form images (noun.artifact) |
| hyponym | : | nicol prism, |
| definition | : | optical device that produces plane-polarized light (noun.artifact) |
| hyponym | : | planetarium, |
| definition | : | an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome (noun.artifact) |
| hyponym | : | polarimeter, polariscope, |
| definition | : | an optical device used to measure the rotation of the plane of vibration of polarized light (noun.artifact) |
| hyponym | : | optical prism, prism, |
| definition | : | optical device having a triangular shape and made of glass or quartz; used to deviate a beam or invert an image (noun.artifact) |
| hyponym | : | projector, |
| definition | : | an optical device for projecting a beam of light (noun.artifact) |
| hyponym | : | stereoscope, |
| definition | : | an optical device for viewing stereoscopic photographs (noun.artifact) |
| hyponym | : | viewer, |
| definition | : | an optical device for viewing photographic transparencies (noun.artifact) |
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