Photocell
01
光电池, 光电管
a device that detects or measures light, commonly used to automatically control lighting or to trigger other electronic devices based on changes in ambient light levels
例子
Streetlights equipped with photocells illuminate automatically as daylight diminishes and turn off at dawn.
配备光电管的路灯在日光减弱时自动亮起，黎明时关闭。
Outdoor security lights often incorporate photocells to provide enhanced visibility during low-light conditions.
户外安全灯通常包含光电管，以在低光条件下提供更好的能见度。
