Integra LifeSciences Loupes - Manual (Page 7)

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4. Adjusting Convergence Angle
Before adjusting the convergence angle, set the IPD (see step 2). Then, follow the instructions
in step 3.0. There is a convergence error if two horozontal dots are seen. Rotate the lens
barrels to eliminate the horizontal convergence error.
4.0 To adjust the horizontal convergence angle, first look downward at the loupe optics from
the top to see if the barrels are equally angled.
4.1 Barrels out of alignment will appear asymmetrical.
4.2 If a barrel seems out of alignment, loosen both convergence adjustment screws with a
Phillips screwdriver.
4.3 Adjust one or both barrels so they are pointing slightly and equally inward.
4.4 Slightly tighten both screws to keep them in alignment. Focus on the dot from Step 3. If
two dots are still seen, repeat steps 4.0 through 4.4 until one dot is seen and both barrels are
pointing inward equally. Once set, tighten both convergence screws on each barrel.
4.2
4.3 4.4
4.0 4.1
Barrels out of alignment Barrels in alignment