3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Kelly M Roscoe

Michael F Weber

Yaoqi Joe Liu

Andrew John Ouderkirk

John Allen Wheatley

Timothy J Nevitt

William Ward Merrill

Robert L Brott

James M Jonza

Terence D Neavin

Laurence R Gilbert

Bruce A Nerad

Gary B Hanson

John A Wheatley

Jeffrey A Boettcher

Terence D 3M Center Neavin

Yaoqi J 3M Center Liu

Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a highly uniform change in color as a function of viewing angle.

Color shifting film

In a multilayer dielectric reflector, treating the surface of the reflector selectively increases the amount of light transmitted through the reflector. Various surface treatments can be used to permit light to transmit through the reflector that would otherwise be reflected by the reflector. In one such reflector, different portions of the surface have different coupling efficiencies for coupling light having a high propagation angle into the multilayer reflector. Those portions having higher coupling efficiencies on each side of the reflector have a higher degree of transmission.

Multilayer reflector with selective transmission

Growing community of inventors

Orono, MN, United States of America

Kelly M Roscoe