Mercury Vapor Lamp Uv Spectrum

Elemental mercury is relatively harmless and if ingested will pass through the body with exceedingly low absorption.

Mercury vapor lamp uv spectrum.

Mercury lamps emit sufficient energy above 300 nm at only certain wavelengths which are very useful for monochromatic irradiation and so the spectrum can also be used as a point light source providing uniform irradiation. Fluker s sun spot self ballasted mercury vapor flood lamp. Mixjoy 160w reptile heat lamp bulb high intensity self ballasted mercury vapor light bulb uva uvb full spectrum sun light for reptile and amphibian use. Fits into a standard ceramic socket no ballast needed.

In low pressure mercury vapor lamps only the lines at 184 nm and 254 nm are present. This is different from fluorescents which use the mercury vapor arc to create a weaker light that mainly creates uv light to excite the phosphors. However different spectrums can be created by adding rare earth metals doping to the lamp to change its spectral output please see our uv lamp overview for more detailed information. It uses an arc through vaporized mercury in a high pressure tube to create very bright light directly from it s own arc.

The blue green tint of mercury vapor lamps is caused by the strong violet and green lines. Fused silica is used in the manufacturing to keep the 184 nm light from being absorbed. The most widely used mercury lamps are the 175 250 and 400 watt sizes. Although the various sizes cannot be separated exactly by applications the following groupings may be made by wattages and common applications.

The merc as it is known has been a workhorse for society. While the primary source of uv is the sun other sources include welder s flash vdt s video display terminals flourescent lightning high intensity mercury vapor lamps for night sports and high crime areas xenon arc lamps and other lightning. Mercury continues to be used in dental amalgams and mercury vapor lamps continuing the ongoing debate about the harm associated with low level mercury exposure 16 17. Once used for therapeutic reasons mercury containing laxatives were commonly used for explorers to offset.

The 160 watt projects uvb up to several feet from the lamps surface and is ideal for large terrariums or bird aviaries. Mercury lamps for general applications range in size from 40 50 to 1000 watts. The powersun uv is a self ballasted mercury vapor lamp which emits uva uvb and heat all in one lamp. Free shipping on orders over 25 shipped by amazon.

The mercury vapor lamp is a high intensity discharge lamp. Medium pressure mercury vapour curing lamps emit a high intensity broad band mercury spectrum as standard they are also sometimes known as 365nm lamps or in some markets high pressure lamps. 4 2 out of 5 stars 55. Medium pressure mercury lamps produce characteristic bands at 313 and 365 nm.

As can be seen the uv spectrum is divided into several regions. Line spectrum of mercury vapor. Now available in 80 watts.