Dark current is the constant response exhibited by a receptor of radiation during periods when it is not actively being exposed to light. It may refer to:
- Dark current (biochemistry) : The depolarizing current, carried by Na+ ions, that flows into a photoreceptor cell when unstimulated.
- Dark current (physics): The relatively small electric current that flows through a photosensitive device when no photons are entering the device.
- Dark current (chemistry) : The constant response produced by a spectrochemical receptor, in the absence of radiation.
Famous quotes containing the words dark and/or current:
“The Pastthe dark unfathomd retrospect!
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The past! the infinite greatness of the past!
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