High Pressure Mercury Vapor Lamps Are Generally Used In

The uv irradiation power can be as high as approximately 30 of the nominal power.

High pressure mercury vapor lamps are generally used in.

The mercury vapor fluorescent lamps can be either of low pressure lp or medium pressure mp i e gas pressure inside the lamp with nominal power that may vary in the ranges 4 115 w and 400 17 000 w philips 2017 respectively. Standard mercury vapor lamps are generally used to overcome problems with fluorescent lamps for outdoor use. A mercury vapor lamp is a gas discharge lamp that uses an electric arc through vaporized mercury to produce light the arc discharge is generally confined to a small fused quartz arc tube mounted within a larger borosilicate glass bulb. The outer bulb may be clear or coated with a phosphor.

As we reviewed in our earlier blog. The arc discharge is generally confined to a small fused quartz arc tube mounted within a larger glass bulb. In either case the outer bulb provides thermal insulation protection from the ultraviolet radiation the. Most models produce a bluish white light.

Are mercury lamps still legal existing mercury lamp systems should always be considered for retrofit with other high efficiency alternatives unless they operate very few hours a year and or the. The unique spectral emission characteristics of mercury vapor lamps are ideal for photoresists the most common of which are generally photosensitive between 350 and 500 nm wavelengths. The advantage is that it produces a bright white light with relatively long life.