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00053_Field_53.txt
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1997-10-28
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LENS DESIGN
SECONDARY CURVE WIDTH DETERMINATION
In the case of a bicurve lens, the SCW is
equal to the overall lens diameter (OAD)
minus the optical zone diameter (OZD)
divided by 2.
OAD-OZD
SCW= ------------
2
Therefore, if the OAD and OZD are given
for a bicurve lens the SCW can be
calculated.