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Shelyak Argon-Neon Calibration Lamps for Lhires III (Set of 3)

by Shelyak
SKU SHK-SE0174
CA$85.00 - CA$85.00
CA$85.00
CA$85.00 - CA$85.00
CA$85.00
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  • Set of 3 Ne/Ar (Argon-Neon) Calibration Lamps
  • Designed Exclusively for the Shelyak Lhires III Spectrograph
  • Provides More Emission Lines in the Blue Spectrum than Neon-Only Lamps
  • Ideal for Low-Resolution Spectroscopy
  • For the Lhires III Calibration Module
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • Shelyak Ne/Ar Calibration Lamps for Lhires III (Set of 3)

    This pack of 3 Shelyak SE0174 Ne/Ar lamps is for the calibration module of the Lhires III spectrograph only. An argon-neon lamp gives more emission lines in the blue than a neon-only lamp, which makes it the lamp for low-resolution work and for exploring the blue end of the spectrum. Covered by Shelyak's 1-year warranty.

    Ne/Ar Lamps: Extending Lhires III Calibration to the Blue Spectrum

    The primary advantage of these argon-neon (Ne/Ar) lamps over standard neon-only lamps is their enhanced spectral output in the blue wavelengths. While neon provides bright, reliable lines in the red part of the spectrum, the addition of argon gas generates a richer set of emission lines in the blue. For Lhires III users working in the blue, this broader spectral coverage is critical for achieving an accurate wavelength solution across the entire frame.

    A 3-Pack for Low-Resolution and Blue-End Spectroscopy

    The trade-off for the extended blue coverage of Ne/Ar lamps is a significantly shorter operational lifetime, only a few dozen hours, and a fainter overall intensity compared to neon-only lamps. With a set of 3, you have replacements on hand. A lifetime of a few dozen hours is still enough for a large number of observations, and the argon-neon lamp is the one to use for low-resolution work and the blue spectral domain.

    SE0174 Ne/Ar vs. Standard Neon: Which Lamp is Right for Your Lhires III?

    Choosing the correct calibration lamp for your Lhires III depends entirely on your scientific goals. The SE0174 Ne/Ar lamps are the superior choice when your work demands accuracy in the blue spectral domain. However, if your targets are primarily in the red, a standard neon lamp is a better option due to its much longer lifetime and brighter emission lines.

    • Choose Ne/Ar (SE0174) if: You are performing low-resolution spectroscopy or your primary targets have key spectral features in the blue wavelengths.
    • Choose Neon-Only if: You are working mainly in the red part of the spectrum and prioritize lamp longevity and brightness.

  • Why does the Shelyak SE0174 set include 3 lamps?

    The Argon-Neon (Ne/Ar) lamps in the SE0174 set have a much shorter operational life of a few dozen hours compared to neon-only lamps. They are sold in a pack of 3 to serve as ready replacements, ensuring you can continue your observations without interruption.

    When should I use these SE0174 Ne/Ar lamps with my Lhires III?

    You should use the SE0174 Ne/Ar lamps when you need to accurately calibrate spectra in the blue wavelengths. They are recommended for low-resolution spectroscopy and for exploring the blue spectral domain.

    Can I use the SE0174 lamps in a Shelyak Alpy or LISA spectrograph?

    No. The SE0174 lamps are designed to fit the Shelyak Lhires III spectrograph only. For the Alpy, LISA and UVEX, Shelyak sells a different set of Ne/Ar lamps, SE0148.

    How often do I need to run a calibration sequence with my Lhires III?

    Because spectrographs like the Lhires III are sensitive to temperature changes and mechanical flexure, it is standard practice to take a calibration spectrum both before and after each science target sequence. This ensures the highest possible accuracy in your final wavelength solution.

    Is there a specific way to install the SE0174 lamp in the Lhires III?

    Yes. The Ne/Ar lamp bulb is not symmetrical. To achieve the maximum operational lifetime, it must be mounted on the electronic board in the orientation shown in the Lhires III Plus Update Kit manual. Always unplug the 12V power supply before opening the spectrograph to change the lamp.

  • Brand Shelyak
    Model SE0174
    Type Set of 3 Ne/Ar (argon-neon) calibration lamps
    Compatibility Shelyak Lhires III only
    Quantity 3 lamps
    Warranty 1 year

    • Ne/Ar Calibration Lamp

      × 3

  • Shelyak 1-Year Warranty