The holmium glass filter 666-F1 has a range of narrow, well defined peaks in the UV and visible range, making holmium an excellent choice for checking the wavelength scale of spectrophotometers.
Typical spectrum of a holmium glass filter, measured with a slit width of 1 nm.
|APPLICATION||Checking the wavelength accuracy in the UV and Vis range|
|CONTENT||Holmium glass with metal frame|
|STANDARD CERTIFICATION||Wavelengths: 279, 361, 453, 536, 638 nm
Slit width: 1 nm; with DAkkS calibration certificate
|POSSIBLE CERTIFICATION||Wavelengths: 279, 287, 361, 418, 445, 453, 460, 536, 638 nm
Slit width: all up to 2 nm