23
PREPARATIONS
4 Adjust the illumination to φ10mm by adjusting the slit adjustment knob and aperture/slit-length
selector knob.
5 Rotate the magnification selector handle to the minimum magnification (6x).
6 Turn the diopter adjusting ring of the eyepiece with scale ( ) fully counter-clockwise.
7 Turn the diopter adjusting ring clockwise and stop when both the scale ( ) and test rod can be
clearly seen.
8 Read the value on the diopter scale of the stop position. The value shows the diopter (D).
9 Set the diopter scale of the other eyepiece to the read value.
10 Set the eyepiece with scale ( ) to the dominant eye side, and adjust the diopter scale of the
dominant eye as in steps 5 and 6.
11 After adjusting the diopter, turn the slit adjustment knob until the slit width is about 1mm, then
check if the slit image projected on the test rod can be clearly seen with both right and left eyes.
12 Holding the prism box, look through the eyepiece with both eyes, and adjust the pupillary dis-
tance so that the image projected on the test rod can be seen without diplopia (double vision),
and appears to be three dimensional.
Prism box
Diopter adjusting ring
Diopter scale
To Next Page
Loading...
