ASYMMETRIC TURNING FILM WITH TOP-HAT LIGHT OUTPUT DISTRIBUTIONS

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United States of America Patent

APP PUB NO 20190339427A1
SERIAL NO

16475186

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Abstract

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An optical system including a light guide and a turning film that includes a first major surface, where the first major surface is substantially smooth and a second major surface including a plurality of asymmetric microstructures each respective asymmetric microstructure including a first side, where the first side is substantially planar, and a second side including a first surface segment defining a substantially planar surface and a second surface segment defining a non-planar surface.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
EMMONS, Robert M St. Paul, US 31 1554
EPSTEIN, Kenneth A St. Paul, US 97 3046

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