Thermo LabSystems Multiskan EX - Optical System Components; Light Source Description; Chopper Wheel Function; Semi-transparent Mirror

The optical system comprises he following componenrs (Fig. 5a):
1 quartz-halogen lamp
2 chopper wheel
3 apeme and condenser lens
4 semi-mnsparenr mirror
5 apeme
6 inteplerenffi filter (filler wheel)
7 optical fibre bundle
8 focusing lenses
9 upper lenses and detectors
Figure
5a. Optical system
Light source:
To prolong the service life of the lamp, &e hsuumenl should
of
1 minute has IO be allowed before measuring.
Chopper wheel:
Thc chopper wheel chops the light
lo minimize elecmnic noise.
After passing through he condenwr lens the light
aenr
mirror. Bartofthe visible
light and aU longer wavelengths pass lhrough the
visible tight kreflec
arrangement eliminates
hearing of the interferen
tensity Bisuibucion.
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