2. Tutorial (Measuring Procedure)
PV6253-F4E016 5
2.4. Closing procedure for USPM-RU Ver.3.21
(1) Click [File (F)] and select [Quit (X)]. The message "Save changes to the configuration
file?" will be displayed. Select and click [Yes], [No], or [Cancel]. You will be returned
to the icon screen through which the program was started before.
(2) Click the [Start] button to exit Windows.
The Main Window of USPM-RU Ver. 3.21 shows various buttons. These buttons enable you to
measure spectral reflectance. To find the spectral reflectance of a sample, i.e., object under
measurement, conduct measurement by using the procedure described below.
2.5. Focusing method
(1) How to find lens vertex (lens center)
Place the lens under measurement on the stage, and adjust the Z-stage, so that the vertex
is situated roughly in the position of WD (Operating distance = Distance from the tip of
the objective, 10mm in the case of ULMLPL10X). In this condition, look into the
right-hand eyepiece, and you will see two donuts of light (if the two light donuts are not
observed, adjust the XY-stages a little. Notice, however, that no more than one light
donut will be observed if the lens under measurement is thicker than WD.)
Then, adjust the XY-stages, so that the two light donuts will be overlapped
concentrically one on the other, as illustrated in Figure 2. If only one light donut is
observed, adjust the XY-stages in such a manner that its center is aligned to that of the
reticle of the eyepiece.
Align the centers.
Figure 1 Figure 2 Figure 3
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