As the intensity of light varies—by the breaking of a light beam, say, or a decrease in general illumination—the amount of current generated by the sensor changes.
As the intensity of light varies—by the breaking of a light beam, say, or a decrease in general illumination—the amount of current generated by the sensor changes.
光线强度的变化（例如光束被遮断或是一般照明的降低），会造成侦测器里产生的电流随著改变。