Low Pressure Mercury Vapour Lamp

The blue green tint of mercury vapor lamps is caused by the strong violet and green lines.

Low pressure mercury vapour lamp.

Rather than a cold spot the lamp s amalgam spot on pellet regulates mercury vapor pressure during operation and yields up to three times the uvc output of a standard low pressure mercury lamp of the same length. Active 5 days ago. Mercury vapor conducts electricity completing the circuit. One would tip the lamp and electrical contacts on each side of the lamp would send electricity through a liquid mercury which started the lamp.

Looking for low pressure mercury lamp. A mercury vapor lamp whose partial pressure during operation does not exceed 0 001 atmosphere. Low pressure mercury vapor lamps are a highly efficient source of uv light particularly short wavelength uv light 254nm and 185nm. As pressure increases the chance of multiple collisions gets increased.

Fluorescent and germicidal lamps are included in this. In low pressure mercury vapor lamps only the lines at 184 nm and 254 nm are present. Low pressure mercury vapour lamp hg 2 lamp heraeus has developed a compact low pressure low voltage mercury vapour lamp type hg2 principally for use in scientific instrumentation. What s the difference between low pressure lp amalgam low pressure lp and medium pressure mp uv lamps.

This question is off topic. In medium pressure mercury vapor lamps the lines from 200 600 nm are present. Explanation of low pressure mercury lamp. Amalgam lamps use a mercury amalgam mix to control mercury vapor pressure.

It is not currently accepting answers. This lamp has a highly stable output predominantly at the 253 7 nm mercury line. Closed ask question asked 5 days ago. The first mercury vapor lamps were in a lower pressure tube.

Often called germicidal or ozone absorption lamps they are very stable light sources. Find out information about low pressure mercury lamp. Viewed 18 times 0 begingroup closed. Again transition of the electrons requires least amount of input energy from a colliding electron.

These types of lamps are available in ozone producing and ozone free quartz with a variety of phosphors. In case of fluorescent lamp the mercury vapour pressure is maintained at lower level such that 60 of the total input energy gets converted into 253 7 nm single line. Fused silica is used in the manufacturing to keep the 184 nm light from being absorbed.