30
OPERATION PROCEDURE
OPERATING THE ILLUMINATION UNIT
ADJUSTING THE BRIGHTNESS
Turn the brightness adjustment knob.
The brightness of the illumination light can be adjusted to the preferred illumination setting.
ADJUSTING THE SLIT WIDTH
Turn the slit-width control knob.
The slit width can be changed gradually between 0 and 14mm (14mm=circle).
CAUTION
To avoid injury to the patient’s head, incline the illumination
unit holding the base unit.
CAUTION
To avoid causing discomfort to the patient or damage to the
patient's eye, keep the illumination at its minimum during
adjustment.
NOTICE
• Adjust the slit width according to the results of the investiga-
tion.
• The slit-width scale should be used as a guideline.
• When using the square mirror, incline the illumination unit at
least 10º.
• To protect the patient, use the heat absorption filter, as
required.
Brightness adjustment
knob
Slit-width control knob
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