Welch Allyn LumiView Portable Binocular Microscope - User Manual - Manual (Page 12)

8
Setting the Interpupillary Distance
The Interpupillary Distance (IPD) Controls move the oculars and are located on 
the bottom of the optical section. These oculars move independently of one another.
Interpupillary Distance Controls
• To set IPD properly, observe an object at approximately 15 inches (38cm).
• Close the left eye and adjust the IPD control under the right eye until the viewed image i
s centered.
• Now close the right eye, keeping the left eye open, and adjust the IPD control for
the left eye until that image is centered.
• Open both eyes and the object should be clear and centered.
Flat Surface Magnifier Model
• Loosen screw that attaches the lamp section to the adjustment arm.
• Reposition the lamp section up or down to desired location and tighten screw.
• Place instrument on head. Adjust the flat surface magnifier by moving the lens
holder up or down and the magnifier in or out.