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    • 4. 发明申请
    • METHODS OF MANUFACTURING ILLUMINATION SYSTEMS
    • 制造照明系统的方法
    • US20120051088A1
    • 2012-03-01
    • US12868649
    • 2010-08-25
    • Clarence ChuiGaurav SethiJonathan Charles GriffithsManish Kothari
    • Clarence ChuiGaurav SethiJonathan Charles GriffithsManish Kothari
    • F21V5/02H01J9/00
    • G02B6/0036G02B6/006G02B6/0068
    • Illumination systems and methods of manufacturing the same. In one embodiment, an illumination system includes a plurality of light sources configured to emit light into a light panel and a plurality of light turning features disposed on the light panel configured to turn light out of the light panel. The light sources can be configured to emit different colors of light than one another and the light turning features can be arranged such that a first light turning feature turns more light having a first color than any other color of light and such that a second light turning feature turns more light having a second color than any other color of light. In another embodiment, a method of manufacturing an illumination system includes providing a light panel and positioning a luminance altering element on the light panel such that a luminance characteristic of the panel changes.
    • 照明系统及其制造方法。 在一个实施例中,照明系统包括被配置为将光发射到光面板中的多个光源和设置在所述光面板上的多个光转动特征,所述多个光转动特征被配置为将光从所述光面板转出。 光源可以被配置为发射彼此不同的光的颜色,并且光转动特征可以被布置成使得第一光转向特征使得具有比任何其它颜色的光具有第一颜色的更多的光,并且使得第二光转向 特征使得具有比任何其他颜色的光具有第二颜色的更多的光。 在另一个实施例中,一种制造照明系统的方法包括提供一个光面板,并将亮度改变元件定位在该光板上,使得该面板的亮度特性发生变化。
    • 10. 发明授权
    • Fabricating and using hidden features in an image
    • 在图像中制作和使用隐藏的特征
    • US07940463B2
    • 2011-05-10
    • US12148057
    • 2008-04-15
    • Manish KothariJonathan Charles Griffiths
    • Manish KothariJonathan Charles Griffiths
    • G02B27/14
    • G02B5/288B33Y80/00B41M3/148G06K19/06046
    • Some implementations of the invention provide hidden static images. Some such images can only be perceived when viewed from an angle to the normal to a surface. Such images may appear as a solid color when viewed along an axis perpendicular to a surface, but may reveal a hidden image when viewed from an angle relative to that axis. The hidden image may be defined according to interfaces between areas that pass substantially the same wavelength when viewed along the axis, but which pass noticeably different wavelengths when viewed from an angle relative to that axis. The hidden images may or may not be discernable to a human observer. The hidden image may comprise a code that is not readable by an optical scanner positioned to read along an axis normal to a surface, but that is readable by an optical scanner positioned to read along another axis.
    • 本发明的一些实现提供隐藏的静态图像。 一些这样的图像只能从与表面法线的角度观察时被感知。 当沿着垂直于表面的轴观察时,这样的图像可以表现为纯色,但是当从相对于该轴的角度观察时可以显示隐藏图像。 隐藏图像可以根据沿着轴观察基本上相同波长的区域之间的界面来定义,但是当从相对于该轴线的角度观察时,其通过明显不同的波长。 隐藏的图像可能或可能不会被人类观察者识别。 隐藏图像可以包括不能被定​​位成沿着垂直于表面的轴读取的光学扫描器的代码,但是可以被定位成沿另一个轴读取的光学扫描仪读取。