Photocell
01
光電池, フォトセル
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
Streetlights equipped with photocells illuminate automatically as daylight diminishes and turn off at dawn.
フォトセルを備えた街路灯は、日光が弱まると自動的に点灯し、夜明けに消灯します。
