What is infrared radiation?
This information was developed at the Infrared Processing and Analysis Center at California Institute of Technology. Our eyes are detectors which are designed to detect visible light waves (or visible radiation). Visible light is one of the few types of radiation that can penetrate our atmosphere and be detected on the Earth’s surface. There are also forms of light (or radiation) which we cannot see. Actually we can only see a very small part of the entire range of radiation called the * electromagnetic spectrum . The electromagnetic spectrum includes gamma rays, X-rays, ultraviolet, visible, infrared, microwaves, and radio waves (Figure 2). The only difference between these different types of radiation is their wavelength or frequency. Wavelength increases and frequency (as well as energy and temperature) decreases from gamma rays to radio waves. All of these forms of radiation travel at the speed of light (186,000 miles or 300,000,000 meters per second in a vacuum). In addition to vi
Infrared radiation is a type of light which ia a part of the electromagnetic spectrum. It has a wavelength of more than that of visible light. It also includes most of the thermal heat emitted by objects near room temperature. This property of infrared light is used for security systems and night time photograhy. Also, it is used in many other fields. The reason for using ir light is that, though, it is invisible to naked human eyes, it can be detected by cameras. And therefore, it is used in night time surveillance to keep a watch on the property and prevent or reduce the thefts or any insecurities.
Infrared radiation is one of the many types of ‘light’ that comprise the electromagnetic spectrum. Infrared light is characterized by wavelengths that are longer than visible light (400-700 nanometers, or 0.4-0.7 micrometers; also denoted as microns). Astronomers generally divide the infrared portion of the electromagnetic spectrum into three regions: near-infrared (0.7-5 micrometers), mid-infrared (5-30 micrometers) and far infrared (30-1000 micrometers). Webb will be sensitive to near-infrared and mid-infrared radiation. • What is the electromagnetic spectrum? Much of the information we have from the universe comes from light. Sunlight (and starlight) is made up of many different colors. We can see this by holding a prism up to the sunlight. The prism separates the light into the individual colors of the rainbow – the visible light spectrum. Yet the light we can see represents only a very small portion of the electromagnetic spectrum. On one end are gamma rays, with wavelengths milli
Infrared radiation, also known as “IR,” is just one type of radiation that exists within the Electromagnetic Spectrum. The radiation that is used in microwave ovens is a type of radiation that has a place on the electromagnetic spectrum. The radiation that is used in hospitals to create X-ray images is another. The light rays that allow us to see the world around us and the radio waves that are used to deliver our news and favorite music are also types of radiation that exist within the electromagnetic spectrum. Infrared radiation is so named because the wavelength of infrared rays is just a bit longer than that of red rays. The only types of radiation that humans can detect are light rays. If we could see infrared rays on the color spectrum, it would appear just after or below red. The Latin infra translates to “below”. Infrared radiation is an incredibly important part of every human being’s life. This is because IR is quite literally heat. Although our eyes cannot visibly detect IR,
Infrared (IR) radiation is simply one of the many types of ‘light’ that comprise the electromagnetic (EM) spectrum. Infrared light is characterized by wavelengths that are longer than visible light (4000-7000 Angstroms, or 0.4 0.7 micrometers; also denoted as microns). Astronomers generally divide the infrared portion of the EM spectrum into three regions: near-infrared (0.7 5 microns), mid-infrared (5 30 microns) and far-infrared (30 1000 microns).
