lens vs optical device

optical device vs lens

lens and optical device both are nouns.

Word	Noun	Adjective	Verb	Adverb
lens	Yes	No	No	No
optical device	Yes	No	No	No

As nouns, optical device is a hypernym of lens; that is, optical device is a word with a broader meaning than lens:

lens: a transparent optical device used to converge or diverge transmitted light and to form images
optical device: a device for producing or controlling light

lens (noun)	optical device (noun)
a transparent optical device used to converge or diverge transmitted light and to form images	a device for producing or controlling light
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 optical device

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