| 摘要 |
<p>A system and method are provided for constructing an optical device having a substrate and a filter layer provided on a first side of the substrate. The filter layer includes features that define a first image and gaps between the features. An ink layer is provided on the filter layer and includes first image ink deposited in substantial alignment with the features of the filter layer and a second image ink deposited within the gaps. The first image ink renders a first image in reflective light and the second image ink renders a second image in transmitted light. According to one example, a second filter layer may be provided on a second side of the substrate such that features of the filter layer and features of the second filter layer may be at least partially out of vertical alignment in order to define a plurality of light ray entry angles.</p> |
