3M Innovative Properties Company

3M Innovation Properties Company

Sherie A Kristie

John Allen Wheatley

Gilles J Benoit

Gary Timothy Boyd

Rolf W Biernath

Nicholas A Johnson

Guanglei Du

Robert M Emmons

Graham M Clarke

Kristy A Gillette

Owen M Anderson

David A Rosen

Edward C Roberts

Christopher A McLaughlin

Trevor W Stolber

Christopher A Mclaughlin

An optical stack including an oriented polymeric multilayer optical film and a non-birefringent optical filter is described. The oriented polymeric multilayer optical film has a first reflection band with a first band edge and the non-birefringent optical filter has a first blocking band. In some cases, the first blocking band contains the first band edge and the first blocking band provides a reduction in variation of a band edge of an overall blocking band of the optical stack.

Optical stack

A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.

Lightguide

Growing community of inventors

Hudson, WI, United States of America

Sherie A Kristie