The didymium glass filter 666-F7W is made from material specially manufactured by Schott AG. Like holmium glass, didymium glass has a variety of characteristic peaks in the ultraviolet and visible range and is typically used for checking wavelength accuracy. Its peaks are not as narrow as those of holmium glass filters.
Typical spectrum of a Didymium glass filters, measured with a slit width of 1 nm.
|ARTICLE-NO.||666F7W-323 Request this article|
|APPLICATION||Checking the wavelength accuracy in the UV and Vis range|
|CONTENT||Didymium glass with metal frame|
|STANDARD MEASUREMENT||Wavelengths: 329, 472, 512, 681, 875 nm |
Slit width: 1 nm; with DAkkS calibration certificate
|POSSIBLE MEASUREMENTS||Wavelengths: |
with 1 nm slit width: 329, 430, 472, 482, 512, 681, 875 nm
with 2 nm slit width: 430, 472, 482, 512, 875 nm
The positions of didymium glass peaks may vary slightly depending on the glass batch used. This is why Hellma Analytics measures each didymium glass filter individually.