PV8344F4E013
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4.6. Setting the BK7 reference sample
㻌 㻌 㻌
/Setting the sample to be measured
(1)
Place the BK7 reference sample
䠄
the sample to be measured
䠅
on the top surface of
the shift stage. To avoid unnecessary reflected light, it is recommended to put the
BK7 reference sample
䠄
the sample to be measured
䠅
on the center of the stage, where
there is a hole for letting light pass.
4.7. Adjusting the position of the BK7 reference sample
/Adjusting the position of the sample to be measured
[How to switch the window]
Double-click anywhere on the black area to switch between FOCUS and CT in the LIVE
window. You may obtain the same effect through choosing [Live] on the menu.
(A FOCUS window appears when the time the software opens.)
(1)
Adjust focus on the BK7 reference sample
䠄
the sample to be measured
䠅
.
First, select the check box
marked “
AUTO
”
at the lower right of the FOCUS window.
Looking at the FOCUS window, use the focus adjuster to get an optimum focus
position of the BK7 reference sample
䠄
the sample to be measured
䠅
.
The focus adjuster contains a coarse tuning knob and a fine tuning knob.
The optimum focus position is the one that returns the smallest value of FOCUS:xxxx
(at the upper left of the window).
Being out of focus
㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌
Focus is found
㻌 㻌 㻌 㻌 㻌 㻌 㻌 㻌
Optimum position
LENS
