The design of ophthalmic lens by using optimized aspheric surface coefficients

Ming Wen Chang, Wen Shing Sun, Chuen Lin Tien

研究成果: 雜誌貢獻會議論文同行評審

5 引文 斯高帕斯(Scopus)


Coddington's equations can be used to eliminate the oblique astigmatic error in the design of ophthalmic lens of spherical or other conicoidal surfaces. But it is difficult to get satisfactory result in the designing of the nonconic aspheric ophthalmic lens. In this paper we present an efficient approach based on optimization of aspheric coefficients, which enables the design program to obtain the minimum aberrations. Many higher order coefficients of aspheric surfaces can easily result in inflection point, which increases the difficulty in manufacturing. We solved the problem by taking it as one of the optimization constraints. The design of nonconic aspheric ophthalmic lens could also make the spectacle lenses well thinner in thickness and well flatter in shape than the design of spherical ophthalmic lens and other conicoidal ophthalmic lens. Damped least square methods are used in our design. Aspherical myopia ophthalmic lenses, aspherical hypermetropic lenses and cataract lenses were designed.. Comparisons of design examples' results are given.

頁(從 - 到)634-646
期刊Proceedings of SPIE - The International Society for Optical Engineering
出版狀態已出版 - 21 9月 1998
事件International Optical Design Conference 1998 - Kona, United States
持續時間: 8 6月 199812 6月 1998


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