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技術名稱 Technology
發明人 Inventor
武氏蓮, 陳炤彰, 邱鈺婷,
所有權人 Asignee 國立臺灣科技大學

專利國家 Country 申請號 Application No. 專利號 Patent No. 中心案號 Serial No.
中國 201710146371.4 申請中 1050020CN0
美國 15/432,934 US10274750B2 1050020US0
中華民國 105123109 I584022 1050020TW0
  點閱數:944

技術摘要:

This invention provides a method to design progressive contact lens to correct presbyopia. The refractive power gradually changes from either near or distance center to the opposite focal length in the periphery by using a continuous Non-Uniform Rational B-spline (NURBS) curve as a surface profile of the front optical surface. This invention allows a high degree of freedom of design the optical power distribution to adapt the visual requirement of a particular presbyopic patient. By using a free-form NURBS curve, this method not only provides a smooth and continuous front surface, but also satisfies various optical power distributions and additional power values taking account of pupil diameter. In addition, this method can be applied to manufacture the lens surface or lens mold with high accuracy for both soft and rigid contact lenses.


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