公开(公告)号：US20200341180A1

公开(公告)日：2020-10-29

申请号：US16757898

申请日：2018-10-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kui CHEN-HO ,  Michael A. MCCOY ,  John A. WHEATLEY ,  Susannah C. CLEAR ,  Michelle L. TOY ,  Alex P. PONGRATZ ,  Matthew E. SOUSA ,  Matthew B. JOHNSON ,  Gilles BENOIT ,  David J.W. AASTUEN ,  Guanglei DU ,  Tien Yi T.H. WHITING ,  Kevin W. GOTRIK ,  Christopher A. MERTON ,  Ying XIA ,  Olester BENSON, JR. ,  Charles A. SHAKLEE ,  Travis L. POTTS ,  Carla S. THOMAS

IPC: G02B5/30 ,  G02B5/124 ,  G02B5/128

Abstract: The disclosed light directing article has an optical element and a conformal retarder with predefined thickness that contours with the optical element. In one aspect, the light directing article is a retroreflective article, which further comprises a phase reversing optical reflector.

公开(公告)号：US20210168269A1

公开(公告)日：2021-06-03

申请号：US17263389

申请日：2019-07-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. WHEATLEY ,  Gilles J.B. BENOIT ,  John D. LE ,  Zhisheng YUN ,  Jonah SHAVER ,  Susannah C. CLEAR ,  Timothy J. NEVITT ,  Kui CHEN-HO ,  Kenneth L. SMITH ,  David J.W. AASTUEN

IPC: H04N5/225 ,  G02B5/20 ,  G02B27/28 ,  G06K9/62 ,  G06K9/00 ,  H04N7/18 ,  G08G1/0968

Abstract: The disclosure describes an example vehicle assistance system including a light sensor, a pixelated filter array adjacent the light sensor, and a full-field optically-selective element adjacent the pixelated filter array. The optically-selective element is configured to selectively direct an optical component of light incident on the optically-selective element across the pixelated filter array to the light sensor.