A red long-pass filter from Heliopan (695 nm) measured using a household incandescent lamp as light source. The spectrometer used was an Ocean Optics Maya2000 Pro.
See also
Other objects containing example raw-counts data:
blue_filter.raw_mspct,
halogen.raw_mspct,
sun001.raw_mspct,
white_LED.raw_mspct,
xenon_flash.raw_mspct