1. Photodetector: sensors of light or other electromagnetic energy
2. Infrared: electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700nanometers (nm) to 1 mm.
3. Light-emitting diode: a two-lead semiconductor light source that resembles a basic pn-junction diode, except that an LED also emits light.
4.Thermal imaging camera: a type of thermographic camera used in firefighting. By rendering infrared radiation as visible light, such cameras allow firefighters to see areas of heat through smoke, darkness, or heat-permeable barriers.
No comments:
Post a Comment