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    Cube corner sheeting mold and method of making the same
    7.
    发明授权
    Cube corner sheeting mold and method of making the same 有权

    公开(公告)号：US06318987B1

    公开(公告)日：2001-11-20

    申请号：US09636520

    申请日：2000-08-09

    申请人： Dan E. Luttrell ,  Robert L. Erwin ,  Kenneth L. Smith ,  Gerald M. Benson

    发明人： Dan E. Luttrell ,  Robert L. Erwin ,  Kenneth L. Smith ,  Gerald M. Benson

    IPC分类号： B41B1154

    CPC分类号： B29D11/00625 ,  Y10S425/03

    摘要： Laminae suitable for use in molds for forming retroreflective cube corner elements and methods for making such laminae are disclosed. A representative lamina includes a first row of cube corner elements disposed in a first orientation and a second row of optically opposing cube corner elements disposed. The working surface of a lamina is provided with a plurality of cube corner elements formed by the optical surfaces defined by three groove sets. Opposing first and second groove sets are formed in the working surface of a lamina. The first groove set forms a plurality of structures having first and second optical surfaces disposed in mutually perpendicular planes that intersect along a reference edge. The second groove set forms a corresponding plurality of structures on the opposite side of the lamina. A third groove is formed in the working surface of the lamina along an axis substantially perpendicular to the axes of the grooves of the first and second groove sets. The surfaces of the third groove intersect the surfaces of the plurality of structures in substantially mutually perpendicular planes to define a plurality of cube corner elements. A plurality of such laminae can be assembled to form a mold useful in the manufacture of retroreflective products such as cube corner sheeting.

    Retroreflective cube corner sheeting mold and method for making the same
    8.
    发明授权
    Retroreflective cube corner sheeting mold and method for making the same 失效

    公开(公告)号：US06253442B1

    公开(公告)日：2001-07-03

    申请号：US08887074

    申请日：1997-07-02

    申请人： Gerald M. Benson ,  Kenneth L. Smith

    发明人： Gerald M. Benson ,  Kenneth L. Smith

    IPC分类号： B23P1304

    CPC分类号： B29D11/00625 ,  Y10T29/49984 ,  Y10T29/49995 ,  Y10T409/303752

    摘要： A method is disclosed for manufacturing a plurality of laminae for use in a mold suitable for use in forming retroreflective cube corner articles. Each lamina has opposing first and second major surfaces defining therebetween a first reference plane. Each lamina further includes a working surface connecting the first and second major surfaces. The working surface defines a second reference plane substantially parallel to the working surface and perpendicular to the first reference plane and a third reference plane perpendicular to the first reference plane and the second reference plane. The method includes orienting a plurality of laminae to have their respective first reference planes parallel to each other and disposed at a first angle relative to a fixed reference axis. At least two groove sets are formed in the working surface. Each groove set includes at least two parallel adjacent V-shaped grooves in the working surface of the laminae. The at least two groove sets form first, second and third groove surfaces that intersect substantially orthogonally to form a plurality of cube corner elements. Each of the plurality of cube corner elements is preferably located on essentially one of the plurality of lamina. The plurality of laminae can be oriented at a second angle relative to the fixed reference axis prior to forming at least one of the groove sets. A mold according to the present invention and a retroreflective article made therefrom are also disclosed.

    Machining techniques for retroreflective cube corner article and method of manufacture
    9.
    发明授权
    Machining techniques for retroreflective cube corner article and method of manufacture 失效
    回归式立方角制品的加工技术及制造方法

    公开(公告)号：US6080340A

    公开(公告)日：2000-06-27

    申请号：US719191

    申请日：1996-09-24

    申请人： Gerald M. Benson ,  Kenneth L. Smith

    发明人： Gerald M. Benson ,  Kenneth L. Smith

    IPC分类号： B23B3/30 ,  B23D1/20 ,  G02B5/124 ,  B29D11/00 ,  B24B1/00 ,  G02B5/122

    CPC分类号： G02B5/124 ,  Y10T428/2457

    摘要： A method of machining a substrate to produce a cube corner element optical array. The method includes steps of directly machining a plurality of groove sets into a directly machinable substrate to form an array having a plurality of geometric structures including cube corner elements, and machining at least two of the groove sets along the same path in the substrate but at different depths of groove to produce a geometric structure side surface having both an optical portion and a non-optical portion.

    摘要翻译： 一种加工基板以产生立体角元件光学阵列的方法。 该方法包括以下步骤：将多个凹槽组直接加工成可直接加工的衬底，以形成具有包括立体角元件的多个几何结构的阵列，以及沿衬底中的相同路径加工至少两个凹槽组， 凹槽的不同深度以产生具有光学部分和非光学部分两者的几何结构侧表面。

    Multiple structure cube corner article
    10.
    发明授权
    Multiple structure cube corner article 失效
    多结构立方角文章

    公开(公告)号：US5914813A

    公开(公告)日：1999-06-22

    申请号：US969241

    申请日：1997-11-13

    申请人： Kenneth L. Smith ,  Gerald M. Benson

    发明人： Kenneth L. Smith ,  Gerald M. Benson

    IPC分类号： B32B3/30 ,  G02B5/124 ,  G02B5/122

    CPC分类号： G02B5/124 ,  Y10S359/90 ,  Y10T29/49986 ,  Y10T29/49995 ,  Y10T409/303752

    摘要： A retroreflective cube corner article which is a replica of a directly machined substrate comprises a plurality of single cube corner elements which are machined in the substrate. Each cube corner element is bounded by at least one groove from each of three sets of parallel grooves in the substrate so that the article comprises a plurality of different geometric structures.

    摘要翻译： 作为直接加工衬底的复制品的回射立方角制品包括在衬底中加工的多个单个立体角元件。 每个立体角元件由衬底中的三组平行凹槽中的每一个的至少一个凹槽限定，使得制品包括多个不同的几何结构。