
Figure 13: Mirror M2. Figure 14: Mirror M3.
Mirror M3 is a spherical mirror that condenses the sample beam onto the target sample.
The mirror can be mounted at any of three different positions on the base plate of the
DRA. These positions correspond to the transmission port, centre mount sample holder
and sample reflectance port, and are labelled "T", "C" and "R" respectively. M3 features
a knurled mounting screw for convenient installation and removal as well as the standard
vertical and horizontal adjustments. The mirror is illustrated below.
Note
If you move M3 to a different position, you will need to realign the transfer optics.
Mirror M4 directs the raw reference beam through the collimating optic and onto mirror
M5. The mirror mount is constructed in a manner to prevent stray light scattered from
mirror M1 from reaching the integrating sphere. The mirror has a single adjustment in the
vertical plane. If beam adjustment is required in the horizontal plane, loosen the cap
screws at the base of the mirror mount and rotate the device slightly in either direction.
Comentarios a estos manuales