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    • 12. 发明授权
    • Optically variable flakes paint and article
    • 光学可变薄片油漆和制品
    • US5653792A
    • 1997-08-05
    • US348562
    • 1994-12-02
    • Roger W. PhillipsThomas MayerGary S. Ash
    • Roger W. PhillipsThomas MayerGary S. Ash
    • B05D1/28B05D5/06B41M3/00B41M3/14C03C17/00C09C1/00C09D11/00F24J2/48C04B14/00
    • C09C1/0051B05D1/286B05D5/06B41M3/00B41M3/14C03C17/00C09C1/0015C09C1/0078C09D11/50F24J2/485C01P2004/54C09C2200/24C09C2210/10C09C2220/10C09C2220/20Y02E10/40
    • An article with a surface with a paint film adherent thereto having a liquid medium hardened into a solid to form said paint film and having first and second parallel surfaces with the first parallel surface being adhered to the surface of the article and the second surface exposed to be viewed by the human eye. A plurality of flakes are provided having first and second planar parallel surfaces lying in said paint film with the first and second planar parallel surfaces being parallel to the first and second parallel surfaces of the paint film. The flakes are characterized in that they have physical dimensions such that when the dimensions of the flakes are measured parallel to and perpendicular to the respective first and second planar parallel surfaces, an aspect ratio of at least two-to-one is provided. Each of the flakes has a symmetrical optically variable multilayer thin film interference structure including at least one thick substantially opaque metal reflecting layer having first and second surfaces and a multilayer thin film including at least one thin semi-transparent metal layer and at least one dielectric layer formed of an inorganic material with an index of refraction of 1.65 or less and disposed on each side of the substantially opaque metal reflecting layer. The multilayer thin film structure produces a shift in color between two distinct colors when the angle of incident light on the paint film is shifted between two different angles.
    • 具有附着有涂膜的表面的物品具有硬化成固体的液体介质以形成所述漆膜并且具有第一和第二平行表面,其中第一平行表面粘附到物品的表面,而第二表面暴露于 被人眼看。 提供多个薄片,其具有位于所述漆膜中的第一和第二平面平行表面,其中第一和第二平面平行表面平行于漆膜的第一和第二平行表面。 薄片的特征在于它们具有物理尺寸,使得当薄片的尺寸平行于并垂直于相应的第一和第二平面平行表面测量时,提供至少两对一的纵横比。 每个薄片具有对称的可变多层薄膜干涉结构,其包括至少一个具有第一表面和第二表面的基本上不透明的厚度的金属反射层,以及包括至少一个薄的半透明金属层和至少一个介电层 由折射率为1.65以下的无机材料形成,并设置在基本上不透明的金属反射层的每一侧。 当涂膜上的入射光的角度在两个不同的角度之间移动时,多层薄膜结构产生两种不同颜色之间的颜色偏移。