Refractive Index (SODIUM D-LINE)

Parallel to C Axis 1.768          Perpendicular to C Axis 1.760

OPTICAL TRANSMISSION CURVE U.V. GRADE
Reference Purposes Only

	Wavelength in Microns

Operating Parameters

Transmission range	0.2 - 0.4 µm 70% 0.5 - 4.0 µm 85% 5.0 - 6.0 µm 50%
Bakeout temperature	450°C
Vacuum rating	Better than 1x10-9 mbar litre sec-1