Ophthalmic lens design method and resulting ophthalmic lens
AssigneeMenicon Co., Ltd.
InventorsYukihisa Sakai, Yoshihiko Oyama
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Abstract
Disclosed is a method of designing an ophthalmic lens including the steps of: (a) determining a preliminary lens shape by preliminary determining a shape of the ophthalmic lens; and (b) varying the preliminary lens shape so as to adjust a position of an image surface at which MTF value is maximized, such that the position of the image surface matches a desired focal length of said ophthalmic lens. A resulting ophthalmic lens constructed according to this method is also disclosed.
Claims14
A method of designing an ophthalmic lens comprising the steps of:
- determining a preliminary lens shape by preliminary determining a shape of said ophthalmic lens;
- and
- varying said preliminary lens shape so as to adjust a peak position of MTF in relation to an image surface distance concerning said preliminary lens shape such that said peak position of said MTF conforms to a desired focal length of said ophthalmic lens.
An ophthalmic lens having a lens shape designed according to a method of designing said ophthalmic lens comprising the steps of:
- defining a preliminary lens shape by preliminary determining a shape of said ophthalmic lens;
- and
- varying said preliminary lens shape so as to adjust a MTF peak position in relation to an image surface distance concerning said preliminary lens shape such that said peak position of said MTF conforms to a desired focal length of said ophthalmic lens.
Dependencies are inferred from the claim text.