About Infrared Goggles
Infrared is an electromagnetic radiation that has wavelengths that are longer than visible light, but shorter than microwaves and terahertz radiation. The literal meaning of "infrared" is "below red" in Latin. With infrared imaging, people can track movement and light. Because of these properties, there are many uses for wearing infrared goggles, including night vision, surveillance, tracking and target acquisition. People wearing infrared goggles are able to see a certain range of light during the day. Learn more about infrared goggles and their purposes.
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Significance
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Infrared light occurs between the visible and microwave parts of the electromagnetic spectrum. Infrared light has a specific range of wavelengths, similar to visible light's wavelengths that go from violet to red light. "Far infrared" light is close to the microwave side of the spectrum, and "near infrared" is close to visible light. Far infrared waves are thermal and radiate heat (like sunlight or the warmth of a radiator), while near infrared waves are not remotely hot, and are virtually impossible to "feel."
Expert Insight
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When wearing infrared goggles, human eyes automatically will add "color" to any infrared they might see. Near infrared is close to red in color, so our eyes will see things that reflect infrared as being red. Objects that absorb infrared, however, will range from being dark red to black in color.
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Potential
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Infrared goggles are also often used in medical clinics for testing patients with balance and dizziness issues. In these situations, infrared goggles are usually connected to video screens to observe and record eye movements while patients engage in several activities. The therapist can evaluate the balance issues by looking at the patient's eye movement. This is just one of the many practical and useful applications for infrared goggles in the medical world.
Theories/Speculation
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There is the strong belief that infrared goggles will allow people to see ghosts. Infrared goggles (as well as EMF detectors) are often referred to as "ghost detection equipment." While wearing infrared goggles, people track "paranormal" activities they may see through the spectrum.
Considerations
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Infrared goggles can be purchased in various ways. There are several online retailers that have vast selections of high quality infrared goggles. These places include Digital Foto Club, Instructables, Infrared 1 and Amazon.com. You can also look for and find infrared goggles in certain photography shops. Also, Wal-Mart sells various infrared goggles at moderate prices.
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