What are the common sources of exposure to infrared?
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What are the common sources of exposure to infrared?
Common natural sources are solar radiation and fire. Common artificial sources include heating devices, and infrared lamps used and in the home and in infrared saunas for health purposes. Industrial sources of heat such as steel/iron production also fall into the infrared region.
What are 3 characteristics of infrared waves?
Characteristics of Infrared Radiation
- Infrared radiation consists of heat-inducing property.
- The origin is from an alteration in electron movement.
- Wavelength range from 710 nm to 1 mm.
- Frequency range from 430 THz to 300 GHz.
- Infrared radiation is a Transverse wave.
- Speed is 3X 108 m/s.
What are the most common injuries associated with exposure to ultraviolet and infrared light?
Excess exposure to UV causes skin inflammation, and possibly even skin cancer or permanent eye damage. However the main risk amongst welders is for inflammation of the cornea and conjunctiva, commonly known as ‘arc eye’ or ‘flash’.
Are there health risks from overexposure to visible light radiation?
Ultraviolet radiation (UVR) and visible light (400-700 nm) can induce DNA damage in the human skin through ROS production. Addtionally, visible light exposure can cause or exacerbate photodermatoses such as solar urticaria, chronic actinic dermatosis (CAD) and cutaneous porphyrias.
What is the effect of the glass on infrared radiation?
The transparency of glass to visible light makes it the most common way to let light into a building. But because glass is also transparent to near-infrared radiation — windows also let in heat, giving rise to the well-known greenhouse effect.
What are some additional uses of infrared waves other than remote controls?
Military applications include target acquisition, surveillance, night vision, homing and tracking. Non-military uses include thermal efficiency analysis, environmental monitoring, industrial facility inspections, remote temperature sensing, short-ranged wireless communication, spectroscopy, and weather forecasting.
What is infrared advantages and disadvantages?
2. Infrared communication (IR)
| Advantages | Disadvantages |
|---|---|
| Inexpensive compared to other technologies | Only works line-of-sight |
| Works over a moderate bandwidth 115 kbps | Short range – a few metres |
| Works well over a short distance | Low bandwidth |
What are the effects of UV rays on humans?
Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems. They can cause the cornea (on the front of the eye) to become inflamed or burned.
What is the effect of infrared on living things?
These effects on living organisms appear to be non-specifically triggered by an exposure to far-infrared rays, which eventually induce an increase in temperature of the body tissues or, more basically, an elevated motility of body fluids due to decrease in size of water clusters.