公开(公告)号：US12216298B2

公开(公告)日：2025-02-04

申请号：US17302662

申请日：2021-05-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. Wheatley ,  Guanglei Du ,  David T. Yust ,  Neeraj Sharma ,  Gilles J. Benoit ,  Ellison G. Kawakami ,  Anthony M. Renstrom

IPC: G02B5/20 ,  G02B5/28 ,  G02B5/30

Abstract: An article includes an optical filter that comprises a wavelength selective reflective layer and at least one wavelength selective absorbing layer. The optical filter has visible transmittance between 400 nm-700 nm of less than about 30% and near infrared transmittance at 830 nm-900 nm greater than about 30%.

公开(公告)号：US12066329B2

公开(公告)日：2024-08-20

申请号：US17440004

申请日：2020-03-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. Wheatley ,  Mark A. Roehrig ,  Audrey A. Sherman ,  Del R. Lawson ,  Gilles J. Benoit ,  Daniel J. Schmidt ,  Jonah Shaver ,  Raymond J. Kenney ,  Zhaohui Yang

IPC: G01J3/28 ,  G02B5/22

CPC classification number: G01J3/2803 ,  G02B5/22

Abstract: An optical device is disclosed and includes an optical sensor, a plurality of photosensitive pixels disposed on the optical sensor, a wavelength-selective optical filter in optical communication with the photosensitive pixels, and a plurality of spatially-variant written regions disposed in the optical filter, the written regions having a transmission spectrum and each of the written regions being larger than each of the pixels.

公开(公告)号：US20240230912A1

公开(公告)日：2024-07-11

申请号：US18558419

申请日：2022-05-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. Wheatley ,  Raghunath Padiyath ,  Gilles J. Benoit ,  Michael D. Holden ,  Martin J. Sisolak ,  Travis L. Potts ,  Jincy Jose

IPC: G01S17/931 ,  B60J1/20 ,  G01S7/481 ,  G02B1/04 ,  G02B5/20

CPC classification number: G01S17/931 ,  B60J1/20 ,  G01S7/4813 ,  G02B1/04 ,  G02B5/208

Abstract: An optical sensing system includes an optical film and a transceiver configured to at least 5 one of emit and receive a first light toward an object through the optical film along a propagation direction making a first angle of greater than about 20 degrees in an air with a normal to the optical film. The first light has a first infrared wavelength in an infrared wavelength range extending from about 800 nm to about 2000 nm. For an incident light incident on the optical film in the air and having the first infrared wavelength and for at least one of mutually orthogonal first and second 10 polarization states, the optical film reflects at least 60% of the incident light at an incident angle of less than about 5 degrees, and transmits at least 40% of the incident light at an incident angle substantially equal to the first angle.

公开(公告)号：US20240151586A1

公开(公告)日：2024-05-09

申请号：US18279264

申请日：2022-02-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. Wheatley ,  Dawn V. Muyres ,  Jason W. Bjork ,  Mark August Roehrig ,  Gilles J. Benoit ,  Theresa J. Gerten ,  Zhaohui Yang ,  Audrey A. Sherman ,  Bharat R. Acharya ,  Edward J. Kivel

IPC: G01J3/51 ,  G01J3/02 ,  G01J3/10 ,  G01J3/44 ,  G01J3/46

CPC classification number: G01J3/513 ,  G01J3/0264 ,  G01J3/0267 ,  G01J3/0275 ,  G01J3/10 ,  G01J3/4406 ,  G01J2003/468 ,  G01J2003/516

Abstract: An optical device for sensing a presence of an analyte in a person is provided. The optical device includes a light source, an optical stack, and a reader. The light source emits a first light having a first wavelength. The optical stack is placed on a skin of the person. The optical stack includes a sensor material and an optical filter. The sensor material emits a second light having a second wavelength when irradiated with the first light. An optical property of the second light is sensitive to the presence of the analyte. The optical filter is disposed on the sensor material and includes a plurality of microlayers numbering at least 10 in total. The optical filter has different first and second transmittances at the respective first and second wavelengths.

公开(公告)号：US20240118463A1

公开(公告)日：2024-04-11

申请号：US18536915

申请日：2023-12-12

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Daniel J. Schmidt ,  Caleb T. Nelson ,  Kevin W. Gotrik ,  Raymond J. Kenney ,  John A. Wheatley ,  Kenneth A. Epstein ,  Gary T. Boyd ,  Corey D. Balts

IPC: G02B5/02 ,  F21V8/00 ,  G02B5/28

CPC classification number: G02B5/0263 ,  G02B5/286 ,  G02B6/0053 ,  G02B5/305

Abstract: A light control film comprises a light input surface and a light output surface opposite the light input surface. Alternating transmissive regions and absorptive regions are disposed between the light input surface and the light output surface. The absorptive regions have an aspect ratio of at least 30 and the alternating transmissive region and absorptive regions have a relative transmission at a viewing angle of 0 degrees of at least 75%.

公开(公告)号：US11953709B2

公开(公告)日：2024-04-09

申请号：US17527837

申请日：2021-11-16

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Guanglei Du ,  John A. Wheatley ,  William B. Kolb ,  John C. Schultz ,  Daoyun Song ,  Luke D. Riveness

IPC: G02B5/26 ,  G02B5/20 ,  G02B5/22 ,  G02B5/28

CPC classification number: G02B5/26 ,  G02B5/206 ,  G02B5/208 ,  G02B5/22 ,  G02B5/223 ,  G02B5/281

Abstract: A system may include one or both of a light emitter and a light receiver. The system may include an optical filter adjacent one or both of the light emitter or the light receiver. The optical filter includes a wavelength selective scattering layer. The wavelength selective scattering layer may have a near-infrared scattering ratio of less than about 0.9. The filter may have a visible reflective haze ratio of greater than about 0.5. A method may include disposing the wavelength selective scattering layer adjacent one or both of the light emitter and the light receiver. An article may include the optical filter. The wavelength selective scattering layer may have an average near-infrared scattering of less than 60%, an average visible scattering of greater than 10%, and a difference between the % total visible reflectance and the % diffuse visible reflectance of less than 20.

公开(公告)号：US20240023905A1

公开(公告)日：2024-01-25

申请号：US18266049

申请日：2021-12-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhiping Liu ,  Fan Long ,  John A. Wheatley ,  Bharat R. Acharya ,  Ryan T. Fabick ,  Zhe Hu ,  Edward J. Kivel

IPC: A61B5/00 ,  A61B5/117 ,  A61B5/1455

CPC classification number: A61B5/7445 ,  A61B5/0062 ,  A61B5/117 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/489 ,  A61B5/14558

Abstract: A display system for sensing a user body portion, including a display panel configured to form an image for viewing by the user, an optical reflector having a plurality of polymeric layers, and at least one optical sensor for sensing a visible light having at least one visible wavelength and an infrared light having at least one infrared wavelength. The optical sensor senses the visible and infrared lights after the visible and infrared lights are transmitted by the optical reflector. The optical reflector has an average optical reflectance greater than 80% in the visible wavelength range, an optical transmittance greater than about 50% at the infrared wavelength, an optical transmittance of greater than about 2% and less than about 10% at the visible wavelength, and an optical transmittance versus wavelength with a bandpass segment having a full width at half maximum that includes the visible wavelength.

公开(公告)号：US20230273119A1

公开(公告)日：2023-08-31

申请号：US18111056

申请日：2023-02-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Raj Rajagopal ,  Gregory W. Sitton ,  Benjamin G. Sonnek ,  Robert M. Biegler ,  Gilles J. Benoit ,  Timothy J. Lindquist ,  John A. Wheatley ,  Kristal L. Schutta ,  James A. Phipps

IPC: G01N21/31

CPC classification number: G01N21/314 ,  G01N2021/317 ,  G01N2201/0453

Abstract: An optical well is configured to receive a test sample for examining an optical characteristic of the sample at a first wavelength in a predetermined wavelength range. The optical well includes a wall having a bottom wall portion and a sidewall portion defining a chamber for receiving the test sample, and an optical film formed into a shape so that a portion of the sidewall portion includes a first portion of the optical film, and a portion of the bottom wall portion includes a second portion of the optical film. For a normally incident light, the microlayers in each of the first and second portions have an average optical reflectance of greater than about 80% in the predetermined wavelength range. The forming results in the plurality of microlayers of the integral formed optical film having a thinnest portion and a thickest portion having a thickness difference of at least 30%.

公开(公告)号：US11619771B2

公开(公告)日：2023-04-04

申请号：US16652996

申请日：2018-11-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Neeraj Sharma ,  Guanglei Du ,  John A. Wheatley ,  Matthew E. Sousa ,  Jeremy O. Swanson

IPC: G02B5/28 ,  G02B5/20 ,  G02B5/26

Abstract: Systems including one or both of a light emitter or a light receiver or a detectable object; and an optical filter adjacent one or both of the light emitter or the light receiver, wherein the optical filter includes at least one wavelength transmission selective layer an absorber component, wherein the wavelength transmission selective layer at least partially reduces the transmission of wavelengths from 701 nm to 849 nm incident thereon.

公开(公告)号：US11514659B2

公开(公告)日：2022-11-29

申请号：US17261621

申请日：2019-09-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： John A. Wheatley ,  Susannah C. Clear

IPC: G06V10/143 ,  B60W60/00 ,  G02B5/124 ,  G06V10/60 ,  G06V10/145 ,  G06V20/58 ,  G06V30/224 ,  G06V10/58

Abstract: In some examples, a retroreflective article may include a retroreflective substrate, and an optical pattern embodied on the retroreflective substrate. The optical pattern may include a first optical sub-pattern and a second optical sub-pattern, wherein the optical pattern represents a set of information that is interpretable based on a combination of the first optical sub-pattern that is visible in a first light spectrum and the second optical sub-pattern that is visible in a second light spectrum. The first and second light spectra may be different.