Method of making light redirecting fabric

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9889614
SERIAL NO

14324210

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A flexible sheet-form optical system, referenced to as a light redirecting fabric, which has a fabric-like behavior and light redirecting properties. The light redirecting fabric comprises a soft and flexible sheet of optically transmissive material, such as plasticized polyvinyl chloride. A surface of the flexible sheet includes a plurality of parallel slits having spaced-apart walls configured to reflect light by means of a total internal reflection. At least a portion of daylight incident onto the sheet is internally redirected at bend angles greater than the angle of incidence. Disclosed also are a method and apparatus for making the light redirecting fabric. The method includes steps of mechanical slitting of the flexible sheet with a blade, elastic stretch-elongation of the sheet along a direction perpendicular to the slits, and making at least a portion of the sheet elongation irreversible.

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Patent Owner(s)

Patent OwnerAddress
SVV TECHNOLOGY INNOVATIONS INCSACRAMENTO CA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Vasylyev, Sergiy Elk Grove, US 125 693

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