noun, noun, used as a prefix
receiving light; detecting light
Technical term used in optics, electronics, and photography. Often appears in compound nouns like 受光素子 (light-receiving element) or 受光部 (light-receiving section).
このセンサーは受光部が小さいため、微弱な光も検出できます。
Because this sensor has a small light-receiving section, it can detect even faint light.
受光素子の感度を上げることで、暗い場所でも
By increasing the sensitivity of the light-receiving element, it now works even in dark places.