RMH 45 - reflection measurement head

The RMH 45 reflection measurement head from Instrument Systems is a convenient and inexpensive adapter for reflection measurements. With this adapter both specular reflectance (in the 45º incidence, 45º measurement configuration) and diffuse reflectance (45º and 0º configuration) at the surface of test samples can be determined.

RMH 45 reflection measurement head


  • 45º/0º geometry for diffuse reflection
  • 45º/45º geometry for specular reflection
  • halogen lamp for wavelength range 380 - 2200 nm
  • optional fiber connector for external light sources

Prior to a measurement it is important to first establish the base line using a reflectance standard before positioning the reflection head over the test sample. Depending on whether the specular or diffuse reflection is to be measured, connection of the fiber bundle is made to the 45° or 0º measurement port of the RMH 45, respectively.

Two options are available for the choice of light source - a compact 10W halogen lamp fixed to the head or a fiber connector for use with a light source from the LS 100 / LS 500 series manufactured by Instrument Systems. The fiber option permits measurements in the UV down to 220nm.