1. Devices that convert light or electromagnetic radiation into electrical signals or current.
Usage: Plural form of photodetector.; Technical term used in physics, electronics, and telecommunications.

Examples

• Photodetectors are essential components in fiber-optic communication systems.
• The camera uses photodetectors to capture images by converting photons into electrical charges.
• Silicon photodetectors are widely used in consumer electronics and industrial applications.
• Modern smartphones contain multiple photodetectors for ambient light sensing and facial recognition.
• Photodetectors in solar panels convert sunlight directly into usable electrical energy.
• The telescope's photodetectors are sensitive enough to detect faint starlight from distant galaxies.