Waters ACQUITY UPLC Operator's, Overview And Maintenance Manual page 14

Optics assembly light path
Grating
Thermal
switch
M1 mirror
Lamp and
lamp optics
The following table describes the optics assembly components.
Optics assembly components
Component
Thermal switch
M1 mirror
Lamp and lamp
optics
Window
2
Window Filter Flag
Function
Disconnects power to the lamp if the temperature rises
to an unacceptable level.
Off-axis, ellipsoidal mirror that projects light from the
lamp into the flow cell.
Focuses light from the high-brightness deuterium (D
source lamp and, via a mirror, redirects the light
through a beam splitter and then to the flow cell.
Used to help minimize air infiltration into the lamp
housing.
500 nm (PDA)
800 nm (eλPDA)
Order filter
Photodiode
array
190 nm
100-µm slit (PDA)
50-µm slit (eλPDA)
Spectrograph
mirror and
mask
TP02522
Flow cell
)
2