LED usage and applications can be divided into four main categories. These include:
Visual Signals – where LEDs are used to indicate a message or meaning. One example of a visual signal would be an on/off indicator for a device.
Illumination – in which LEDs produce light for the purpose of increased or altered visibility. Interior and exterior home, auto and marine lighting are just a few of the examples of illumination using LEDs.
Measuring – using LEDs to measure and interact with process not involving human vision.
Sensors – instead of emitting light, LEDs respond to incident light by operating in a reverse-bias mode and by utilizing narrow band light sensors. Rapid real time detection of biological aerosols is made practical by the implementation of semiconductor UV optical sources, or SUVOS.
LEDs can replace almost any light source, for any purpose. Doing so provides advantages such as efficiency, durability, flexibility and sustainability.
