OPTICAL ELEMENT, OPTICAL ELEMENT STAMPER STRUCTURE, PRINTED ARTICLE, AND METHOD FOR MANUFACTURING OPTICAL ELEMENT
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United States of America Patent
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Mar 21, 2019
app pub date -
Nov 20, 2018
filing date -
Nov 20, 2018
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Abstract
By providing a rib portion 40 having a constant height in the range from 50% to 120% of the height of the highest point of a split lens structure between a plurality of split lenses, even when roll forming is performed at a high speed, trapping of air bubbles can be inhibited, and resin flow can be promoted; therefore, an optical element 10 having a surface on which a lens shape is formed and having a special optical effect can be obtained with few structural defects and high productivity.
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