Olympus bx40 - Interpupillary Distance Adjustment Mechanism

U-BI30 B. DESCRIPTION OF MECHANISM
4, INTERPUPILLARY DISTANCE ADJUSTMENT MECHANISM
4-1 Adjustment range
4-2 Working force
The working force is
adjusted by the screw-in .
depth of this nut.
The working force is
determined by the depres-
sion degree of these two
spring washers.