Optical sensing

Optical sensing involves using light to detect and measure physical properties or changes in an environment. Sensors emit light—often lasers or LEDs—toward an object or substance and analyze how the light is reflected, absorbed, or scattered. Differences in these interactions reveal information about properties like distance, temperature, moisture, or chemical composition. This non-contact method is highly precise, fast, and versatile, making optical sensors useful in various applications such as medical diagnostics, environmental monitoring, industrial automation, and communication systems.