The primary harmful effect of infrared radiation (IR) is thermal injury, but scaling and hyperpigmentation of skin can also occur, even if no pain is felt. IR-proof goggles can be required in certain industrial environments in which high exposure to invisible infrared radiation can cause blindness or damage to the eyes. Although skin cancer is not directly connected to IR exposure, elevated skin temperatures can reduce the efficiency of DNA repair and promote skin cancer initiated by other causes.Know More
Sunlight is the main source of infrared radiation, but infrared saunas and cabins, tungsten lamps, xenon arc lamps, industrial IR lamps and iron melt from steel mill furnaces are additional sources. A variety of workers can be affected by exposure to infrared radiation, including glass blowers, smelters, firefighters and kiln workers. Industrial and medical lasers also emit levels of infrared radiation that that can place workers at risk.
Infrared radiation does not penetrate deeply into tissue, and the primary targets of IR damage are the skin and eyes. Due to the transparency of the ocular media, the retina is particularly susceptible to damage from IR in the lower wavelengths. At the higher wavelengths, the pigmented iris and lens will absorb the infrared radiation, and it is believed this may play a part in the development of lenticular opacities.Learn more about Optics & Waves
Nuclear radiation is the release of energy-bearing rays, waves or particles that occurs when an atom is split. This specific process is called fission, and it can occur in both natural and artificial situations. Nuclear energy can be harnessed from these reactions and transformed into usable electricity, but the waves and particles released during fission can also cause radiation that is dangerous to living beings.Full Answer >
Infrared waves are dangerous because they can cause burns, skin irritation, dehydration, low blood pressure and eye damage. A form of heat radiation, infrared waves are most dangerous at high levels.Full Answer >
One of the most common uses of infrared rays is for wireless communication, such as with garage door openers, car-locking systems and handheld remote controls for televisions and other appliances. Since all objects emit some degree of infrared radiation, night-vision devices make use of their sensitivity to infrared rays to capture and transmit images when there is no visible light source. Heat-seeking missiles also rely upon infrared technology to track their targets in passive missile-guidance systems.Full Answer >
Some examples of radiating infrared waves are burning charcoal, heat from an electric heater, fire or a radiator emitting warmth. Infrared radiation is a type of electromagnetic radiation that objects emit when they are hot but not quite hot enough to emit visible light. Because infrared radiation can be felt in the form of heat, it is also called thermal radiation.Full Answer >