IR Goggles

Infrared goggles, or IR goggles, are devices that allow the wearer to view the infrared radiation, also called thermal or heat radiation, emitted by or reflected by objects.

The electromagnetic radiation, or light, referred to as infrared has a longer wavelength than the visible light that humans can see.

The infrared light that is closest in wavelength to visible light is called "near infrared" while the infrared wavelengths that lie closer to microwaves are called "far infrared."

IR goggles take advantage of ambient infrared radiation. This allows the wearer to see objects that emit in the infrared or reflect it.

The more expensive and complex NVDs use a power source to intensify ambient infrared and visible light as they pass through a series of lenses and filters.

As a result, inexpensive IR goggles are not capable of amplifying the infrared light to the same degree as a night-vision device.

A pair of IR goggles can be crafted using welding goggles with removable lenses and sheets of filter gel.