System Description . 27
Optical System
The high-performance Lambda spectrometer features an all-reflecting, double-monochromator
optical system. The optical components are coated with silica for durability. Holographic
gratings are used in each monochromator for the UV/Vis range and the NIR range.
Lambda 650/750/850/950 Spectrometer
The optical system of the Lambda 650/750/850/950 spectrometer is shown in Figure 8.
Figure 8 Schematic of the Lambda 650/750/850/950 optical system
Two radiation sources, a deuterium lamp (DL) and a halogen lamp (HL), cover the working
wavelength range of the spectrometer.
For operation in the near-infrared (NIR) and visible (Vis) ranges, source mirror M1 reflects
the radiation from the halogen lamp onto mirror M2. At the same time it blocks the radiation
from the deuterium lamp.
To Next Page
Loading...
