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US07367705B2 Long curved wedges in an optical film 有权
光学膜中的长弧形楔形物

Long curved wedges in an optical film
摘要:
The invention relates to a light redirecting polymeric film comprising a plurality of polymeric individual optical elements wherein the elements comprise curved wedge shaped features in the plane of the film, having a length in the range of 800 to 4000 micrometers.
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