Optical Sensors

Optical sensors are electronic devices that detect and measure changes in light intensity, wavelength, or other properties of light. They convert optical signals into electrical signals, enabling systems to sense objects, motion, distance, temperature, pressure, and environmental conditions without direct physical contact.

They are widely used in automation, robotics, healthcare, telecommunications, automotive systems, security, and consumer electronics. Common examples include photodiodes, phototransistors, infrared sensors, and fiber-optic sensors.

Key advantages: high sensitivity, fast response, non-contact measurement, immunity to electromagnetic interference, and the ability to operate in challenging environments.