eyepiece vs lense

eyepiece and lense both are nouns.

Word	Noun	Adjective	Verb	Adverb
eyepiece	Yes	No	No	No
lense	Yes	No	No	No

As nouns, lense is a hypernym of eyepiece; that is, lense is a word with a broader meaning than eyepiece:

eyepiece: combination of lenses at the viewing end of optical instruments
lense: a transparent optical device used to converge or diverge transmitted light and to form images

Other hypernyms of eyepiece include lens, lens system.

eyepiece (noun)	lense (noun)
combination of lenses at the viewing end of optical instruments	a transparent optical device used to converge or diverge transmitted light and to form images