TRA 100 - transmission measurement adapter

The transmission measurement adapter TRA 100 permits determination of the spectral transmission properties of widely ranging materials under normal light incidence. Typical applications include the characterization of optical filters and glasses.

TRA 100 transmission measurement adapter


  • transmission measurements at 0° incidence
  • optional integrated halogen lamp or fiber connector for external light source
  • wavelength range 380 - 2200nm or 200 - 2200nm, respectively
  • sample size: 4 cm x 4 cm x 6 cm (H x W x D)
  • measurement area approx. 1 cm across

The TRA 100 is compatible with all Instrument Systems spectrometers. Coupling of the transmitted light into the spectrometer is accomplished via a multimode fiber and SMA connector, or with a fiber bundle. Additionally, two options are available for the choice of light source - a compact 10W halogen lamp fixed to the adapter or a fiber connector for use with a light source from the LS 100 / LS 500 series manufactured by Instrument Systems.  

ModelLight SourceFiber Connector Spectral range
TRA100-210 integrated halogen lampSMA connector380 - 2200 nm
TRA100-211 integrated halogen lamp for fiber bundles 380 - 2200 nm
TRA100-310 external connector for multi-mode fiber SMA connector 200 - 2200 nm
TRA100-311 external connector for fiber bundlefor fiber bundles200 - 2200 nm

When configured for an external light source, utilization of the full spectral range from 200 - 2200 nm is only possible with the use of an appropriate lamp (e.g. LS 500 with deuterium- und halogen lamp).