OCULUS UB 4, Инструкция по эксплуатации

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08
/
13
Setting axis position for trial lenses with
cylindrical power and/or basis position of
trial lenses with prismatic power:
h
Turn knob
⑫
.
Reading axis and/or basis position:
h
Take reading from scale ⑥
.
Resistance of knobs for axis or base
position
⑪
:
h
Increase: Turn brake in direction of arrow.
h
Decrease: Turn brake against direction of arrow.