Electric eye
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A sensor which measures the intensity of light, often used to start and stop electrical equipment (motorized doors, etc.).
"A man and woman sat before an electric eye in a London laboratory tonight and a group of people in a darkened room in this village outside New York watched them turn their heads move from side to side."
- 2 a transducer used to detect and measure light and other radiations wordnet
Example
More examples"A man and woman sat before an electric eye in a London laboratory tonight and a group of people in a darkened room in this village outside New York watched them turn their heads move from side to side."