photointerrupter

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English

[edit]

Etymology

[edit]

From photo- +‎ interrupter.

Noun

[edit]

photointerrupter (plural photointerrupters)

  1. An optical device that acts as a switch when a beam of light is blocked by a foreign object
Retrieved from "https://en.wiktionary.org/w/index.php?title=photointerrupter&oldid=81320347"