Blacklight with structured surfaces

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7046905
SERIAL NO

09613313

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A backlight includes a lightguide, a light source disposed with respect to the lightguide to introduce light into the lightguide and a turning film. Optical structures are formed in one of an output surface and a back surface of the lightguide. The optical structures are arranged to extract light from the lightguide. A back reflector is disposed adjacent the back surface. The optical structures are formed to include a varying pattern arranged to mask non-uniformities in the output of the lightguide.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANY A DELAWARE CORP3M CENTER ST PAUL MN 55133

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cobb, Sanford Lakeland, MN 8 528
Gardiner, Mark E Santa Rosa, CA 57 2510
Kretman, Wade D Afton, MN 23 1414

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