jeweler's loupe vs hand glass

jeweler's loupe and hand glass both are nouns.

Word	Noun	Adjective	Verb	Adverb
jeweler's loupe	Yes	No	No	No
hand glass	Yes	No	No	No

As nouns, hand glass is a hypernym of jeweler's loupe; that is, hand glass is a word with a broader meaning than jeweler's loupe:

jeweler's loupe: small magnifying glass (usually set in an eyepiece) used by jewelers and horologists
hand glass: light microscope consisting of a single convex lens that is used to produce an enlarged image

Other hypernyms of jeweler's loupe include magnifying glass, simple microscope.

jeweler's loupe (noun)	hand glass (noun)
small magnifying glass (usually set in an eyepiece) used by jewelers and horologists	light microscope consisting of a single convex lens that is used to produce an enlarged image
	a mirror intended to be held in the hand