the position and the lens slot front
surface distance of not less than 1.0mm. Set operation: operate
according to Fig. 3-3-24. Set operation: operate according to Fig.
3-3-24. The file control table, the spring hook into the "F" and "C"
point of the hole. The move the center pin, which suspended. Place the
table clamp lens slowly underneath glasses, lenses are rotated to find
the most thin lens edge position. To move closer to the two guide arm,
rotating positioner, the lens is moved to be slotted position. (3) after
the arc groove is: high hyperopia lens, bifocal eye
Lens.
Rarely use this groove in general, but the bifocal lenses to choose the
groove is very convenient. Setting: in figure 3-3-25. (4) "the position
of the central groove" adjustment of the machine can also adjust the
"center groove" position, if the rear grooves located close to the lens,
can rotate clockwise adjustment knob.
