All-dielectric optical diffractive pigments
    51.
    发明授权
    All-dielectric optical diffractive pigments 有权
    全介电光学衍射颜料

    公开(公告)号:US06815065B2

    公开(公告)日:2004-11-09

    申请号:US10365090

    申请日:2003-02-11

    IPC分类号: B32B516

    摘要: All-dielectric diffractive pigment flakes can be applied to an object to impart a diffractive effect to the object without substantially changing the background color of the object. In one case, such diffractive pigment flakes can be applied to a white object to impart a white diffractive effect. The thickness of the dielectric layers in the diffractive pigment flakes can be chosen to provide thin-film interference, as well as diffraction from the interfaces between layers patterned with a diffraction grating. In some cases, the thin-film interference can provide color shifting in addition to the diffractive effect.

    摘要翻译: 全介电衍射颜料薄片可以施加到物体上以赋予物体衍射效果,而基本上不改变物体的背景颜色。 在一种情况下,这种衍射颜料薄片可以施加到白色物体上以赋予白色衍射效果。 可以选择衍射颜料薄片中的电介质层的厚度以提供薄膜干涉,以及来自用衍射光栅图案化的层之间的界面的衍射。 在某些情况下,除了衍射效应之外,薄膜干涉还可以提供颜色偏移。

    Patterned structures with optically variable effects
    57.
    发明授权
    Patterned structures with optically variable effects 有权
    具有光学变化效果的图案结构

    公开(公告)号:US07667895B2

    公开(公告)日:2010-02-23

    申请号:US11273985

    申请日:2005-11-15

    IPC分类号: G02B5/18

    摘要: An optical structure includes a light transmissive substrate having a surface relief pattern applied thereon, such as a hologram. One or more layers can be patterned corresponding to materials playing the role of absorbers or reflectors on a Fabry-Perot type of optical structure. These materials are applied over portions of the surface relief pattern so as to form alphanumeric characters, bars codes, or pictorial or graphical designs. Additional layers may be applied to the patterned layer of the reflective or absorber materials and exposed portions of the surface relief pattern in order to provide desirable optical effects to the exposed portions of the surface relief pattern. In some embodiments, the optically active coating is a color shifting thin film, or contains color shifting flakes based on Fabry Perot designs.

    摘要翻译: 光学结构包括具有施加在其上的表面浮雕图案的透光基板,例如全息图。 一个或多个层可以对应于在Fabry-Perot类型的光学结构上起吸收器或反射器的作用的材料。 这些材料应用在表面浮雕图案的部分上,以便形成字母数字字符,条形码或图形或图形设计。 另外的层可以施加到反射或吸收材料的图案化层和表面浮雕图案的暴露部分,以便为表面浮雕图案的暴露部分提供期望的光学效果。 在一些实施方案中,光学活性涂层是色移薄膜,或包含基于法布里珀罗设计的变色薄片。

    Provision of frames or borders around opaque flakes for covert security applications
    58.
    发明授权
    Provision of frames or borders around opaque flakes for covert security applications 有权
    为隐蔽的安全应用程序提供围绕不透明片的框架或边框

    公开(公告)号:US07645510B2

    公开(公告)日:2010-01-12

    申请号:US11243122

    申请日:2005-10-04

    申请人: Alberto Argoitia

    发明人: Alberto Argoitia

    IPC分类号: B32B5/16

    摘要: Opaque flakes, such as pigment or bright flake used in paints and inks, have a selected shape and/or other indicia to provide a covert security feature to an object. In some embodiments the composition includes base pigment, and the opaque covert flakes match the visual characteristics of the base pigment. In another embodiment, opaque covert flakes are mixed in the carrier with base pigment at a concentration sufficient to avoid changing the appearance of the composition. In another embodiment, opaque covert flakes are mixed in a clear or tinted varnish base that can be applied over an existing security feature. Shaped opaque covert flakes are not readily detectable by causal observation, but in some embodiments are easily seen at 50× magnification. In manufacturing the flakes a sheet of embossed frames are provided having symbols or indicia within; upon removing a coating from the sheet the coating material tends to break along frame lines and the resulting flakes are substantially uniform in size.

    摘要翻译: 不透明的薄片,例如在油漆和油墨中使用的颜料或亮片,具有选定的形状和/或其他标记,以向对象提供隐蔽的安全特征。 在一些实施方案中,组合物包括基础颜料,不透明的隐形薄片与基础颜料的视觉特性相匹配。 在另一个实施方案中,不透明隐形薄片在载体中与基础颜料混合,其浓度足以避免改变组合物的外观。 在另一个实施方案中,不透明的隐形薄片混合在透明或有色的清漆基底中,其可以施加在现有的安全特征上。 通过因果观察不能容易地检测到形状不透明的隐形薄片,但是在一些实施例中,在50倍放大倍数下容易看出。 在制造薄片时,提供具有符号或标记的压花框架片; 在从片材上去除涂层时,涂层材料倾向于沿着框线断裂,并且所得薄片的尺寸基本上是均匀的。

    Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom
    59.
    发明授权
    Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom 有权
    可对准衍射颜料薄片以及用于对准的方法和装置以及由其形成的图像

    公开(公告)号:US07625632B2

    公开(公告)日:2009-12-01

    申请号:US11461870

    申请日:2006-08-02

    申请人: Alberto Argoitia

    发明人: Alberto Argoitia

    IPC分类号: B32B5/16

    摘要: Diffractive pigment flakes are selectively aligned to form an image. In one embodiment, flakes having a magnetic layer are shaped to facilitate alignment in a magnetic field. In another embodiment, the flakes include a magnetically discontinuous layer. In a particular embodiment, deposition of nickel on a diffraction grating pattern produces magnetic needles along the grating pattern that allow magnetic alignment of the resulting diffractive pigment flakes. Color scans of test samples of magnetically aligned flakes show high differentiation between illumination parallel and perpendicular to the direction of alignment of the magnetic diffractive pigment flakes. In another embodiment diffractive pigment flakes are selectively aligned by electrical fields. In other embodiments, special diffractive optical variable images are described and the method to produce them.

    摘要翻译: 衍射色素片选择性地排列以形成图像。 在一个实施例中,具有磁性层的薄片被成形为便于在磁场中对准。 在另一个实施例中,薄片包括磁不连续层。 在特定实施例中,镍在衍射光栅图案上的沉积产生沿着光栅图案的磁针,其允许所得衍射颜料薄片的磁性对准。 磁性取向薄片的测试样品的彩色扫描在平行于和垂直于磁性衍射颜料薄片的取向方向的照明之间显示出高分化。 在另一个实施方案中,衍射颜料薄片通过电场选择性地排列。 在其它实施例中,描述了特殊衍射光学可变图像以及产生它们的方法。