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    Computer aided design method for enhancement of local refinement through T-splines
    3.
    发明授权
    Computer aided design method for enhancement of local refinement through T-splines 失效
    计算机辅助设计方法，用于通过T样条增强局部细化

    公开(公告)号：US08310481B2

    公开(公告)日：2012-11-13

    申请号：US12287627

    申请日：2008-10-10

    申请人： Edward Ernest Bailey

    发明人： Edward Ernest Bailey

    IPC分类号： G06T17/00

    CPC分类号： G06T17/20 ,  G06T17/205

    摘要： One embodiment of the present technology provides a the method comprises the steps of: Converting B-spline networks to T-splines, Converting NURBS into T-spline surfaces, Adding control points to local regions, Scaling or optimizing weights across the mesh, and merging between NURBS and T-spline surfaces. The technology overcame some of the issues with implementing simultaneous multiple surface design methodology when dealing with groups of lenses and reflectors, by improving seed patch junction continuity, elimination of ripples and holes, and precisely adding control points where required. In at least one embodiment of the technology, the t-splines topology allowed for refined control over the optical surface. Control points were reduced by conversion of a NURBS into a T-spline. T-splines were used to produce new loft lenses which were further refined and merged to spline patches. In another embodiment of the present technology, the T-spline loft lens network was subsequently optimized through reverse raytracing, bi-directional raytracing, flow-line, optical path, or flux tube approach.

    摘要翻译： 本技术的一个实施例提供了一种方法，包括以下步骤：将B样条网络转换为T样条，将NURBS转换为T样条曲面，将控制点添加到局部区域，缩放或优化网格上的权重，并合并 在NURBS和T样条曲面之间。 该技术克服了在处理透镜和反射镜组时同时实现多面设计方法的一些问题，通过改进种子贴片连续性，消除波纹和孔，以及在需要时精确添加控制点。 在该技术的至少一个实施例中，允许t样条拓扑在光学表面上进行精细控制。 通过将NURBS转换成T样条来减少控制点。 T型花键用于生产新的倾斜镜片，进一步细化并合并到花键片。 在本技术的另一个实施例中，随后通过反向光线跟踪，双向光线跟踪，流线，光路或磁通管方法来优化T样条倾斜透镜网络。

    Computer Aided Design method for enhancement of local refinement trough T-Splines
    7.
    发明申请
    Computer Aided Design method for enhancement of local refinement trough T-Splines 失效
    计算机辅助设计方法，用于增强局部细化槽T型样条

    公开(公告)号：US20090237399A1

    公开(公告)日：2009-09-24

    申请号：US12287627

    申请日：2008-10-10

    申请人： Edward Ernest Bailey

    发明人： Edward Ernest Bailey

    IPC分类号： G06T17/00

    CPC分类号： G06T17/20 ,  G06T17/205

    摘要： One embodiment of the present technology provides a the method comprises the steps of: Converting B-spline networks to T-splines, Converting NURBS into T-spline surfaces, Adding control points to local regions, Scaling or optimizing weights across the mesh, and merging between NURBS and T-spline surfaces. The technology overcame some of the issues with implementing simultaneous multiple surface design methodology when dealing with groups of lenses and reflectors, by improving seed patch junction continuity, elimination of ripples and holes, and precisely adding control points where required. In at least one embodiment of the technology, the t-splines topology allowed for refined control over the optical surface. Control points were reduced by conversion of a NURBS into a T-spline. T-splines were used to produce new loft lenses which were further refined and merged to spline patches. In another embodiment of the present technology, the T-spline loft lens network was subsequently optimized through reverse raytracing, bi-directional raytracing, flow-line, optical path, or flux tube approach.

    摘要翻译： 本技术的一个实施例提供了一种方法，包括以下步骤：将B样条网络转换为T样条，将NURBS转换为T样条曲面，将控制点添加到局部区域，缩放或优化网格上的权重，并合并 在NURBS和T样条曲面之间。 该技术克服了在处理透镜和反射镜组时同时实现多面设计方法的一些问题，通过改进种子贴片连续性，消除波纹和孔，以及在需要时精确添加控制点。 在该技术的至少一个实施例中，允许t样条拓扑在光学表面上进行精细控制。 通过将NURBS转换成T样条来减少控制点。 T型花键用于生产新的倾斜镜片，进一步细化并合并到花键片。 在本技术的另一个实施例中，随后通过反向光线跟踪，双向光线跟踪，流线，光路或磁通管方法来优化T样条倾斜透镜网络。