Infrared illuminators are devices that illuminate objects or areas that are scanty in light. Mostly used in photography to illuminate objects present in dark or poorly lit environments. This is the most typical use of an Infrared IR illuminator.
Infrared lights are electromagnetic radiations which has wavelengths larger than visible light and shorter than microwave radiations. In the absence of visible light infrared radiations enables visibility of objects. Infrared cameras use IR radiations to focus objects but when the focus is not strong enough an Infrared illuminator is to be used to provide enough infrared light for taking a picture.
One common use of infrared illuminator is CCTV or closed circuit televisions used for capturing pictures with better clarity even the dark. Infrared lights are not visible to human eye whereas cameras can detect and capture infrared radiations. This is where infrared illuminators come in handy for surveillance television; they detect infrared lights which human eyes cannot capture. Lighting infrared illuminators in dark areas is a good way of guarding a place with a CCTV. Since infrared lights or illuminators are not visible to human eyes they are used in bedrooms in the night without disturbing ones sleep.
Thus Infrared illuminators are a group of infrared LEDs brought together to illuminate a area with infrared light.
Infrared Illuminators emit infrared light which are widely used. Some of the important applications of Infrared illuminators are as below.
Night vision Equipments
All night vision equipments use infrared illuminators to make objects visible in the night. They are enhance visibility where light is very scanty.
Thermography
Infrared radiations from IR illuminators are used to roughly estimate temperature of an object. This method is called thermal imaging which is more popular in industrial and military applications. Commercially this technology is used in infrared cameras for cars.
Heating
Infrared illuminators are used for heating as infrared radiations form Infrared illuminator are source of heat energy. Infrared Sauna uses infrared radiations to heat occupants and also to remove frozen water from aircraft’s wings.
Today infrared radiations from illuminators are used for curing diseases and for physiotherapies as well. They are safely used in households for heating and cooking food. It is because they only heat objects without heating the surrounding environment.
Manufacturing industries too use infrared illuminators for annealing, print drying, curing coatings, melting plastics and many more. They have replaced conventional methods of heating in all industries.
