LOMSS
Main Menu

Clark School

More Facilities

Far-Infrared Interferometry

Luminous Flux Measurement System

Microscopic Moiré Interferometry

Portable Engineering Moiré Interferometry (PEMI)

Shadow Moiré Measurement System

Twyman/Green Interferometer

Facilities Home

Luminous Flux Measurement System

Integrating sphere with spectroradiometer is to measure optical property of general light source. Depending on type of light source, the measurement configuration is different. Addison based socket used for incandescent light sources or TEC module can be installed at the center of the sphere to apply different junction temperature condition for LED-based light sources.

The available measurement parameters are:

  • Optical power vs. wavelength plot
  • Luminous flux (lm)
  • CIE chromaticity coordinates
  • Color correlated temperature (K)
  • Dominant wavelength (nm)
  • Peak wavelength (nm)
  • CRI

Figure 1