1.3.26

Light Sensors

Test yourself

Light Sensors

Light sensors are also known as photo sensors or photodetectors. Light sensors measure the intensity or presence of light in their surroundings.

Illustrative background for Electrical signalsIllustrative background for Electrical signals ?? "content

Electrical signals

  • Light sensors convert light energy into electrical signals.
  • Light sensors have various applications including:
    • Electronic devices.
    • Automation.
    • Environmental monitoring.
Illustrative background for ApplicationsIllustrative background for Applications ?? "content

Applications

  • There are various examples of light sensor applications:
    • Automatic street lighting.
    • Camera auto-focus.
    • Security systems.
    • Solar-powered devices.
Illustrative background for Smart buildings Illustrative background for Smart buildings  ?? "content

Smart buildings

  • Light sensors are used in smart buildings.
    • Light sensors can adjust artificial lighting based on the amount of natural light available.
  • Light sensors are used in proximity sensors.
    • Light sensors can detect the presence of an object or person based on reflected light.

Jump to other topics

1Computer Systems

1.1Data Representation

1.2Data Transmission

1.3Hardware

1.4Software

1.5The Internet & its Uses

1.6Cyber Security

1.7Automated & Emerging Technologies

2Algorithms, Programming & Logic

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium