magic eye vs photocell

magic eye and photocell both are nouns.

Word	Noun	Adjective	Verb	Adverb
magic eye	Yes	No	No	No
photocell	Yes	No	No	No

As nouns, magic eye and photocell are synonyms defined as:

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

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

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