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Holmium Oxide / Didynium Filter


HOLMIUM OXIDE, CERTIFIED, GLASS FILTER

(for checking the wave length accuracy)

Starna Part No.: RM-I-IG

Usable Range: 270nm to 640nm (11 peaks)

NIST Traceable with Certificate

Supplied in a wooden box

DIDYMIUM, CERTIFIED, GLASS FILTER

The didymium glass filter produces characteristic peaks that make it suitable for use as a wavelength reference material in the visible region of the spectrum.

Approximate peak wavelength values (in nm) are: 431, 473, 513, 529, 573, 585, 685, 741, 749, 807, 879.

The spectrum shows 11 characteristic and from 430 nm to 890 nm well-defined peaks covering the wavelength range