Mercury Lamp Spectrum

The most popular mercury lamp for optical microscopy is the hbo 100 a 100 watt high pressure mercury plasma arc discharge lamp which has the highest radiance and mean luminance due to its very small source size of the commonly used lamps of any wattage. A wide variety of light sources and wavelengths are available and are being used in photopolymerization such as conventional light sources e g mercury lamp pregelification lamp low pressure fluorescent lamp doped mercury vapor lamp and microwave powered lamp blue light emitting diode led or laser. Pencil lamp spectrum typically agreed to 5 parts in 108 with a maximum difference of 8 parts in 108.

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For each pencil lamp spectrum we used as the correction factor the average of the factors.

Mercury lamp spectrum. Emission peak is always very selective focused on precise wavelengths which generally are 365 385 395 405 nm 5nm. In medium pressure mercury lamps a plasma that emits uv light is generated by applying electrical voltage. Unlike most other uv sources the medium pressure lamp mpl has a polychromatic spectral distribution from 190 nm up to the infrared spectrum. Their unique uv emission spectra make them popular for unique applications that need enhanced uv output such as uv spectroscopy uv curing and other industrial processes and environmental and medical applications.

The outer bulb may be clear or coated with a phosphor. 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. When a mercury vapor lamp is first turned on it will produce a dark blur glow because only a small amount of the mercury is ionized. Overview mercury xenon arc lamps contain a tightly controlled mixture of xenon gas and mercury given them the combined uv spectral lines of an hg lamp with the ir spectral lines of a xe lamp.

It produces a bright white light that closely mimics natural sunlight with applications in movie projectors in theaters in searchlights and for specialized uses in industry and research to simulate sunlight often for. So it must be considered a virtually monochromatic radiation. There was a high degree of consistency in the correction factors for all spectra acquired on a single day. Variations from day to day were larger.

Mercury hg arc lamps are ideal light sources for applications that require high intensity spectral lines emitted in the deep uv to visible light regions. A xenon arc lamp is a highly specialized type of gas discharge lamp an electric light that produces light by passing electricity through ionized xenon gas at high pressure. 70 120 121 the spectral distribution intensity and temporal dependence of light. The distribution of energy over the wavelength ranges is depicted on the left.

In either case the outer bulb provides thermal insulation protection from the ultraviolet radiation the. A mercury vapor lamp is a gas discharge lamp that uses an electric arc through vaporized mercury to produce light. Uv led lamps radiate a different emission spectrum from the one of traditional mercury uv lamps.