Last Updated：2025/11/22

(physics) The temperature-dependent current that flows in a photodetector when no light is shining on it.

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dark current

Source Word

dark current

Noun

(physics) The temperature-dependent current that flows in a photodetector when no light is shining on it.

Japanese Meaning

光が当たっていない状態で、温度に依存してフォトディテクターなどの光検出器内を流れる電流（暗電流）

The sensor's dark current increases exponentially with temperature, degrading its signal-to-noise ratio in low-light measurements.

センサーの暗電流は温度とともに指数的に増加し、低照度測定で信号対雑音比を低下させる。

Sense（1）

(physics) The temperature-dependent current that flows in a photodetector when no light is shining on it.

dark currents

（ plural ）