Safety light curtains are protective devices used in industrial settings to ensure worker safety around machinery. They consist of a series of infrared light beams that create an invisible barrier. When an object or person interrupts these beams, the system detects the interruption and can immediately stop the machinery, preventing potential accidents. These light curtains are commonly used in automated processes, such as robotic arms and conveyor systems. They are designed to be reliable and can be adjusted for different heights and widths, making them versatile for various applications. Their use helps create a safer work environment by minimizing the risk of injury.