公开(公告)号：US20240411061A1

公开(公告)日：2024-12-12

申请号：US18700470

申请日：2022-10-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Raymond J. Kenney ,  Yehuda E. Altabet ,  John M. DeSutter ,  Kenneth A.P. Meyer ,  Nicholas C. Erickson ,  Martin B. Wolk ,  James M. Nelson ,  Daniel J. Schmidt ,  Caleb T. Nelson

IPC: G02B5/00

Abstract: A light control film includes a two-dimensional array of projections arranged across the light control film. A square of a magnitude of a Fourier transform frequency spectrum of the projections includes a plurality of distinct peaks separated by one or more valleys. The peaks and the one or more valleys have respective averages Pavg and Vavg, Pavg/Vavg≥5, such that when light from a substantially Lambertian light source is incident on the light control film, the light control film transmits the incident light with the transmitted light propagating along a transmission axis and having an intensity profile having a full width at half maximum of less than about 120 degrees in each cross-section of the intensity profile that comprises the transmission axis.

公开(公告)号：US20250164675A1

公开(公告)日：2025-05-22

申请号：US18839542

申请日：2023-02-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Susannah C. Clear ,  Travis L. Potts ,  Jincy Jose ,  Kenneth L. Smith ,  John M. DeSutter

IPC: G02B5/136 ,  E01F9/524 ,  G02B1/04

Abstract: The present disclosure is directed to reflective microstructures where at least part of the reflective surface of the microstructure is radially symmetric around a given axis. The disclosure is also directed to articles comprising the reflective microstructures.