Use Of The Microscope In Transmitted Light; Turning On The Instrument; Light Intensity Adjustment; Adjusting The Interpupillary Distance - Optika Italy B-383 Serie Manual De Instrucciones

10. Use of the microscope in transmitted light

10.1 Turning on the instrument

Turn the main switch ① on the rear of the stand to "I". (Fig. 9)
• There is a three-position switch on the rear of the stand: po-
sition "I" turns on the transmitted light, position "II" turns on
the reflected light and position "O" turns off the microscope.

10.2 Light intensity adjustment

Operate on the light intensity adjustment knob ② to increase /
decrease the illumination voltage. (Fig. 10)

10.3 Adjusting the interpupillary distance

Observing with both eyes, hold the two eyepiece prism assem-
blies. Rotate them around their common axis until the fields of
view coincide.
• The graduation on the interpupillary distance indicator
③, pointed by the spot "." on the eyepiece holder, shows
the distance between the operator's eyes. (Fig. 11)
The range of the interpupillary distance is 48-75 mm.

10.4 Diopter adjustment

1. Look into the right eyepiece with your right eye only, and
focus on the specimen.
2. Look into the left eyepiece with your left eye only. If the
image is not sharp, use the diopter adjustment ring ④ to
compensate. (Fig. 12)
• The adjustment range is ±5 diopter. The number indicated
on the adjustment ring graduation should correspond to
the operator's diopter correction.
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③
④
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