Using depth in three-dimensional object printing to form colors that change with viewing and illumination angles
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United States of America Patent
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Jul 2, 2019
Grant Date -
Dec 21, 2017
app pub date -
Aug 31, 2017
filing date -
Apr 18, 2016
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Abstract
A three-dimensionally printed object includes a plurality of different material regions that together define a surface region of the object. The plurality of different material regions includes a first material region and a second material region. The first material region has a first color, and the second material region has a second color that is different from the first color. The different material regions overlap from each other within the object by different amounts viewed from different directions so that different proportions of light from the plurality of different material regions are visible to an observer viewing the surface region of the three-dimensionally printed object from different view directions, different view angles, and with illumination lighting the surface region at different angles. A coloration of the surface region is altered based on the proportions of light from the plurality of different material regions visible to the observer.
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