electric eye

• Término coloquial para un sensor fotoeléctrico o haz de luz que detecta la presencia o ausencia de un objeto, utilizado a menudo en puertas automáticas, sistemas de seguridad o equipos industriales.

A colloquial term for a photoelectric sensor or beam that detects the presence or absence of an object, often used in automatic doors, security systems, or industrial machinery.

1. Photoelectric sensorB2formal

   A device that uses a beam of light to detect the presence or absence of an object, often used for automatic doors or security systems.

   fotocélula

   • The automatic door opened when the electric eye detected my movement.
   • The security system uses an electric eye to trigger an alarm.
   • The electric eye in the garage door opener prevents it from closing on a car.