Welch Allyn LumiView Portable Binocular Microscope - User Manual - Manual (Page 21)

Problem
Instrument does not
illuminate.
Solution
Replace 08500 lamp.
See page 11 for instructions.
Battery is expired or discharged.
See page 15 and 16.
Image is distorted or
double image is seen. Instrument must be set correctly
for interpupillary distance ad-
justment. See page 9 for
instructions.
Depth perception is slightly
altered with 3D optical design.
Continued usage will improve
comfort level.
How do I utilize bifocals? Install bifocal lenses so that
only the upper third is for
distance and lower two-thirds is
for reading. Adjust the nose
bridge so that frame sits higher
on nose. Then lower the height
adjustment. This will ensure
that the binocular viewing
system will be positioned in fron
of the reading part of the lenses,
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