Physics Lab Equipment

LLE-1 Low Pressure Mercury Lamp

LLE-1 Low Pressure Mercury Lamp

Features                                                                                                                                                       

  • Ground glass & diaphragm supplied

  • Output of 20 W

  • Housing, support & power supply included

  • Height of lamp adjustable with post/post holder








Introduction


The LLE-1 Low Pressure Mercury Lamp is a widely used discharge lamp that serves multiple important roles in laboratory and medical applications. This lamp is commonly utilized for wavelength calibration of optical measuring instruments and as a disinfection lamp in biological and medical settings. Its high efficiency and good color rendition make it an ideal choice for various applications that require a stable and reliable light source.


The lamp operates by utilizing Mercury in an excited state, which produces light when the arc discharge occurs within a small fused quartz tube mounted inside a larger borosilicate glass bulb. As the mercury gas heats up and the pressure rises, the brightness of the lamp increases, ultimately reaching a steady state. The light produced by the mercury lamp is essential in several spectroscopic applications due to its specific spectral lines, which can be used for precise wavelength calibration.



Spectrum of low-pressure Mercury lamp

Spectrum of low-pressure Mercury lamp


Specifications

DescriptionSpecifications
Wavelengths in Visible Range577 nm, 579 nm, 546.1 nm and 404.7 nm
Power20 W
Operating Voltage20 VAC
Operating Current1.3 A
Base TypeE27
Dimension of Bulb28 mm in OD, 155 mm in length
Dimension of Housing50 mm (dia), 195 mm in length
Dimension of Windows2 opposite windows: 30 mm (height) x 16 mm (width)
Range of Height Adjustment150 mm to 260 mm


Part List

DescriptionQty
Mercury bulb1
Housing with base and post1
Power supply1
Window barrier1 ground glass, and 1 metal plate with a pin hole
Power cord1

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