发明名称 |
Multifocal optical device design |
摘要 |
Multifocal optical device designs receive input parameters to specify a desired power distribution function, a power deviation weight function, and an astigmatism weight function over the design field. A fourth-order partial differential variational equation is linearized by defining the optical surface in terms of perturbations from a base surface such as a sphere or a toric. The solution may be expressed as piecewise quadratic splines superposed over a triangulation of the field. Evaluation of the surface may use a set of tensor-product splines. An astigmatic base surface permits both multiple magnifying powers and a prescribed astigmatism correction in a single optical surface.
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申请公布号 |
US2005052615(A1) |
申请公布日期 |
2005.03.10 |
申请号 |
US20030656690 |
申请日期 |
2003.09.05 |
申请人 |
REGENTS OF THE UNIVERSITY OF MINNESOTA |
发明人 |
WANG JING;SANTOSA FADIL;GULLIVER ROBERT D. |
分类号 |
G02C7/02;G02C7/06;(IPC1-7):G02C7/06 |
主分类号 |
G02C7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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