受じゅ光こう部ぶ

noun

light-receiving part; photosensor; optical receiver

Technical term for the component that receives light in devices such as remote controls, optical sensors, and communication equipment.

• リモコンの受じゅ光こう部ぶが故こ障しょうしたようだ。

  The remote control's light-receiving part seems to be broken.

• このセンサーは受じゅ光こう部ぶと発はっ光こう部ぶから構こう成せいされている。

  This sensor consists of a light-receiving part and a light-emitting part.