公开(公告)号：US11226433B2

公开(公告)日：2022-01-18

申请号：US16186046

申请日：2018-11-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert A. Yapel ,  Joseph T. Aronson ,  Matthew R. C. Atkinson ,  Gary T. Boyd ,  Slah Jendoubi ,  Mitchell A. F. Johnson ,  Scott R. Kaytor ,  Steven H. Kong ,  Fei Lu ,  Tri D. Pham ,  Robert B. Secor ,  Steven D. Solomonson

IPC: G02B5/02 ,  G02B1/10

Abstract: Optical films for redirecting light are described, and optical systems, such as display systems, incorporating such optical films are described. The optical film may include a first structured surface including a plurality of prismatic structures, and a second structured surface opposing the first structured surface and including a plurality of microstructures. An effective transmission of the optical film is not more than 1% less than a film with a comparable construction except for a smooth, non-structured second surface.

公开(公告)号：US11664850B2

公开(公告)日：2023-05-30

申请号：US16553476

申请日：2019-08-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Seong-Woo Woo ,  Jinwook Kim ,  Charles L. Bruzzone ,  Jennifer J. Sokol ,  Matthew R. C. Atkinson

IPC: H01F27/30 ,  H01F27/00 ,  H01F5/00 ,  H01F27/36 ,  H04B5/00 ,  H02J50/10 ,  H01F38/14 ,  H01Q7/00 ,  H01F41/066 ,  H01Q1/38 ,  H01F41/04

CPC classification number: H04B5/0031 ,  H01F5/003 ,  H01F27/006 ,  H01F27/30 ,  H01F27/366 ,  H01F38/14 ,  H01F41/066 ,  H01Q1/38 ,  H01Q7/00 ,  H02J50/10 ,  H04B5/0037 ,  H01F41/046

Abstract: A coil for transfer of information or energy is described. The coil includes an electrically conductive magnetically insulative first layer and a magnetically conductive second layer bonded to the first layer along the length of the first layer. The first and second layers are wound to form a plurality of substantially concentric loops. A width and a length of the second layer may be substantially co-extensive with a respective width and length of the first layer so as to expose opposing longitudinal edge surfaces of the first layer along the length of the first layer. At least one of the opposing longitudinal edge surfaces may include a regular pattern extending substantially along a same first direction and across substantially the entire coil. A method of making the coil is described.

公开(公告)号：US10989656B2

公开(公告)日：2021-04-27

申请号：US16611051

申请日：2018-05-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew R. C. Atkinson

IPC: G01N21/47

Abstract: Microscatterometry system for generating an angularly resolved scattered light profile from the collected data.

公开(公告)号：US11691381B2

公开(公告)日：2023-07-04

申请号：US16336999

申请日：2017-10-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Christopher B. Walker, Jr. ,  Matthew R. C. Atkinson ,  Mary M. Caruso Dailey ,  John C. Clark ,  Vivek Krishnan ,  Alexander J. Kugel ,  Steven J. McMan ,  Abdullahi A. Mohamud

IPC: B05D3/06 ,  B32B5/16 ,  B32B5/22 ,  B32B7/06 ,  D06P1/52

CPC classification number: B32B5/16 ,  B32B5/22 ,  B05D3/067 ,  B32B7/06 ,  B32B2274/00 ,  B32B2307/418 ,  D06P1/5285 ,  Y10T428/25

Abstract: Described herein is an article comprising (i) bead film comprising a binder resin layer and a plurality of microspheres partially embedded in the binder resin layer such that a portion of the microspheres outwardly protrude a first distance from the surface of the binder resin layer; (ii) a stabilizing layer disposed on the outwardly protruding microspheres opposite the binder resin layer, wherein the stabilizing layer intimately conforms to the protruding microspheres, and wherein the stabilizing layer has a Tg less than 100 C and a storage modulus at 150° C. of at least 1.5 MPa; and (iii) a release agent, wherein (a) the binder resin layer comprises the release agent, (b) the stabilizing layer comprises the release agent, and/or (c) an intermediate layer comprises the release agent, wherein the intermediate layer is disposed between the monolayer of microspheres and the stabilizing layer, with the proviso that when the binder resin layer has a fluorine content along the polymeric backbone greater than 65 wt %, the stabilizing layer comprises a release agent selected from a silicone and a fluoropolymer. Also disclosed herein are methods of making thermoformable bead films.