Method And Apparatus For Designing An Optical Lens
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United States of America Patent
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Issued Date -
May 3, 2012
app pub date -
Jun 29, 2010
filing date -
Jun 30, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and an apparatus for designing an optical lens surface for the manufacture of the optical lens, the method comprising the steps of providing a reference surface Sref, the reference surface Sref being defined by a plurality of surface points Pi each surface point Pi having a mean sphere Sph(Pi) and a cylinder Cyl(Pi); providing at least one modifying surface layer SLmod(ξ1, . . . , ξN, x, y) the modifying surface layer SLmod being determined as a function of N adjustment parameters ξ1, ξ . . . , ξN; wherein N≧1 and the N adjustment parameters ξ1, ξ4, . . . , ξN are selected according to the desired optical properties of the optical target; combining the modifying surface layer SLmod with the reference surface Sref to obtain a target optical surface Star(x,y) according to the expression:
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