METHOD OF MAKING LIGHT DIRECTING STRUCTURES
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United States of America
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Feb 3, 2022
app pub date -
Oct 14, 2021
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Oct 14, 2021
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Abstract
A method of making light directing structures using a prismatic optical film and a low-refractive index resin. The prismatic optical film has a plurality of linear refractive prisms formed in its surface. The prisms extend parallel to one another and define a series of refractive walls. The resin is applied to the prism-carrying surface of the film so as to form a generally uniform optical layer. The resin may be further cured to a solid form to form a monolithic layered light bending structure incorporating an embedded corrugated optical interface with a stepped change in a refractive index and having generally smooth outer surfaces.
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