lens vs field lens

field lens vs lens

lens and field lens both are nouns.

Word	Noun	Adjective	Verb	Adverb
lens	Yes	No	No	No
field lens	Yes	No	No	No

As nouns, field lens is a hyponym of lens; that is, field lens is a word with a more specific, narrower meaning than lens:

lens: a transparent optical device used to converge or diverge transmitted light and to form images
field lens: the lens that is farthest from the eye in an optical device with more than one lens

Other hyponyms of lens include anastigmat, anastigmatic lens, camera lens, optical lens, compound lens, condenser, optical condenser, contact, contact lens, converging lens, convex lens, crown lens, concave lens, diverging lens, eyepiece, ocular, Fresnel lens, intraocular lens, meniscus, eyeglass, monocle, object glass, object lens, objective, objective lens.

lens (noun)	field lens (noun)
a transparent optical device used to converge or diverge transmitted light and to form images	the lens that is farthest from the eye in an optical device with more than one lens
electronic equipment that uses a magnetic or electric field in order to focus a beam of electrons
biconvex transparent body situated behind the iris in the eye; its role (along with the cornea) is to focus light on the retina
(metaphor) a channel through which something can be seen or understood

Difference between lens and field lens

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