Optional accessories
000000-1490-499-GA-GB-090118
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The special eyepiece has an angular scale of 180° graduated to 2° for the
measurement of the inclination angle. A gravity ball (
1
, Fig. 22) produces the
artificial horizon required for the angular measurement.
Angular measurement
1
Gravity ball
2
Measuring edge
Fig. 22
Reading the inclination
Grasping the knurled ring, turn the entire eyepiece in the tube socket until
the continuous line of the linear scale coincides with the index mark on the
contact lens.
Read the value from the measuring edge (
2
, Fig. 22) of the gravity ball. The
inclination angle is displayed according to the TABO scheme.
The reproducibility of the measurement is ±0.5°. When taking the
measurement, allow for a short settling time of the ball.
The image scale in the eyepiece plane is insignificant for the measurement of
the inclination angle. Select the magnification changer setting of the slit
lamp microscope only so as to obtain a sufficiently large object field.
Length measurement
For length measurement, the magnification changer has to be set to 8x.
Содержание SL 120
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