focus

def focus (   self,   strength   ) Definition at line 265 of file general_optics.py. 00265 : 00266 "apply a pure focusing strength. It can be a scalar in diopters, a vector of x & y strengths, or a tensor for an off-axis cylindrical lens" 00267 self.qit=self.qit+expand_to_2x2tensor(strength) 00268 def clone(self, newname=None):

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