4. Instrument Features
38
4.3 Filter Wheel Description
The LT-4500 standard filter wheel is delivered with four narrow band interference
filters that have a fixed wavelength (405, 450, 620, and 492 nm). It is possible to
equip the filter wheel with up to 8 filters. For accessorily available filters please
contact your local supplier.
The filters of the standard filter wheel are mounted as listed below:
Filter position Filter wavelength
1 405 nm
2 450 nm
3 620 nm
4 492 nm
5 - 8 empty filter positions
When a wavelength is selected for measurement the specific filter is brought into
the light beam by moving the filter wheel to the according position.
Note
For more information about the definition of a new filter see 7.5.2.
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