Welch Allyn LumiView Portable Binocular Microscope - User Manual - Manual (Page 11)

Setting the lnterpupillaty Distance
The lnterpupillary Distance (IPD) Controls move the oculars and are
located on the bottom of the optical section. These oculars move
independently of one another.
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To set IPD properly, observe an object at approximately
15 inches (38 cm).
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Close the left eye and adjust the IPD control under the right eye
until the viewed image is centered.
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Now close the right eye, keeping the left eye open, and adjust the
IPD control for the left eye until that image is centered.
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Open both eyes and the object should be clear and centered.
lnterpupillary Distance Controls
Flat Surface Magnifier Model
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Loosen screw that attaches the lamp section to the adjustment arm.
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Reposition the lamp section up or down to desired location and
tighten screw.
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Place instrument on head. Adjust the flat surface magnifier by
moving the lens holder up or down and the magnifier in or out.
Magnifier
Lens holder
Adjustment screw
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