Ultraviolet light has a shorter wavelength than visible light and therefore has more energy. UV can be divided into three groups according to wavelength, UV, UVB, and UVC. UVA has been shown to penetrate the lower layers of skin, and is associated with aging. UVB can cause keratitis, and is associated with cataracts. UVC is the shortest wavelength and is almost entirely blocked by the upper atmosphere. Sunglasses, which protect against these three types of UV light are essential equipment.

UV-C rays penetrate the cells of harmful bacteria and viruses in our drinking water, destroying their ability to reproduce. Without this ability, these organisms die and no longer pose a health threat. It is a simple but very effective process, with the system generally destroying 99.99% of harmful microorganisms.

Sunlight is a mixture of seven different colors, whereas Laser light is always of one single color (monochromatic). Sunlight is disorderly whereas laser beam is very orderly (coherent). Sunlight is not parallel whereas laser light runs parallel (collimated). The healing properties of Laser beam come from these differences.

Natural sunlight is a good healer for many people with psoriasis, but there are some who do not respond and some who are made worse. Sunlight consists of several different types of light across a spectrum ranging from infra-red, through visible light, to ultraviolet (UV). It is the ultra-violet part that can help in treating psoriasis.

Absolutely. There is a growing body of well-conducted, validated scientific research demonstrating that the production of the activated form of vitamin D is one of the most effective ways the body controls abnormal cell growth. Moderate exposure to sunlight is the only way for the body to manufacture the vitamin D necessary for producing activated vitamin D.

For information on the UV properties of the euro banknotes, see the guidelines on how to identify counterfeit euro banknotes.

In addition to the superior color rendering abilities, SoLux has been engineered to have very low heat (IR) output and ultra-low UV output. That combined aspect of extremely high color rendering and extremely low UV and low IR is extraordinary. It means that with SoLux, you will have the brilliance of daylight without the negatives aspects of UV and IR. The result is a superior presentation that won't cook or bleach the subject being illuminated.

Ultraviolet A and Ultraviolet B can actually damage DNA near the surface of the skin, altering the DNA and causing the formation of antibodies, thus, creating a lupus flare. Some individuals with lupus report rash, fatigue and aching upon exposure to the sun.

Yes. These are watercolors and are very sensitive to sunlight and of course they cannot get wet, unless you want a creation of your own design!

In contrast to natural sunlight the technically synthesized BIOPTRON Light provides light therapy with controllable and therefore reproducible parameters.

Ultraviolet light represents a portion of the sun's electromagnetic spectrum. It is the wavelength band immediately beyond the violet end of visible light. All bands of UV light are present throughout the environment - it comes from the sun, light fixtures, electrical devices, etc. The UV range of the spectrum is characterized by wavelengths between 100 and 400 nanometers (nm).

Yes, it is. Sanuvox uses only UVC and UVV in their purification process. To prevent skin redness or eye irritation we place cutoff switches on inspection/filter doors.

Light is divided in to many different categories based on its wavelength. Most of the light that reaches the earth's surface is visible light or infrared light, but a small percentage consists of ultraviolet light. This light is divided into ultraviolet A, B, and C. Ultraviolet light has many effects on the skin, the most common being a sunburn and the formation of pigment or a suntan.