公开(公告)号：US20190293486A1

公开(公告)日：2019-09-26

申请号：US16306659

申请日：2017-05-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. WHEATLEY ,  Gilles J. BENOIT ,  Guanglei DU ,  Rolf W. BIERNATH ,  Sara Suzanne MERRITT ,  James HILLIS ,  Owen M. ANDERSON ,  Timothy J. NEVITT

IPC: G01J1/04 ,  G01J1/20 ,  G01J3/12 ,  G01J3/46 ,  G01N21/31 ,  G02B5/136 ,  G01J3/28

Abstract: In an example, an example article may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.

公开(公告)号：US20220057258A1

公开(公告)日：2022-02-24

申请号：US17515687

申请日：2021-11-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. WHEATLEY ,  Gilles J. BENOIT ,  Guanglei DU ,  Rolf W. BIERNATH ,  Sara Suzanne MERRITT ,  James HILLIS ,  Owen M. ANDERSON ,  Timothy J. NEVITT

IPC: G01J1/04 ,  G01J1/20 ,  G01J3/12 ,  G01J3/28 ,  G01J3/46 ,  G01N21/31 ,  G02B5/136 ,  G01J3/51

Abstract: A technique of determining the presence of a species in a sample may include passing light through an optical filter. In an example, the optical filter may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.