"A Wavelength Calibration Lamp
For Spectral Confocal Systems"

Measure wavelength accuracy, spectral resolution, and contrast
Compare the performance of confocal systems

Use the MIDL lamp
with these systems
Click on the image below to
watch the video
MIDL
The movie is 11MB. Once it has completely downloaded you can select any segment by clicking in the column on the left

The MIDL wavelength calibration lamp provides the following information

  • Wavelength accuracy
  • Actual spectral resolution
  • Contrast (peak to valley ratio)
  • The alignment of the optics in the system
  • Evidence of scattered or stray light
  • Compare relative instrument performance
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For over 50 years almost every research grade spectral instrument used in physics, chemistry, analytical spectroscopy, astronomy or the remote Earth sensing community use an ion discharge lamp to calibrate their spectrometers.

The most common is a low pressure Hg+/Ar+ lamp that emits light from 254 nm up to about 920 nm.  The emission lines are very narrow so that the actual spectral resolution of an instrument can be determined by observing the full width at half maximum (FWHM) of the various emission lines.

The wavelengths of Hg and Ar lines are known to many decimal places and can be found on the NIST website.  In other words a Hg/Ar lamp is an ABSOLUTE not a relative calibration source. A low pressure Hg/Ar lamp emit bright lines at 254, 365, 405, 436, 546, 577/579, 695, 811 and 911 nm. (Actually there are many more; but these are the most widely used.)

To Order: Click here

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LightForm, Inc.,
601 Route 206, Suite 26-479
Hillsborough NJ 08844
Tel: (908)281 9098
Email: jlerner@lightforminc.com