photoelectric cell vs magic eye

photoelectric cell and magic eye both are nouns.

Word	Noun	Adjective	Verb	Adverb
photoelectric cell	Yes	No	No	No
magic eye	Yes	No	No	No

As nouns, photoelectric cell and magic eye are synonyms defined as:

photoelectric cell and magic eye: a transducer used to detect and measure light and other radiations

Other synonyms of photoelectric cell include electric eye, photocell, photoconductive cell.

photoelectric cell (noun)	magic eye (noun)
a transducer used to detect and measure light and other radiations	a transducer used to detect and measure light and other radiations