公开(公告)号：US20230367083A1

公开(公告)日：2023-11-16

申请号：US18306296

申请日：2023-04-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Amanda K. Leone ,  David B. Stegall ,  Changbao Ma ,  Bing Hao ,  Barry J. Koch ,  Constantin-Christian A. Voll

IPC: G02B6/38 ,  C09J133/10 ,  C09J175/04

CPC classification number: G02B6/3861 ,  C09J133/10 ,  C09J175/04 ,  G02B6/3813 ,  C09J2301/416 ,  C09J2301/408 ,  C09J2301/312

Abstract: An optical ferrule assembly includes an optical ferrule including an attachment area, a light input surface and a light output surface; an optical fiber having a fiber end where the light input surface and the fiber end defines a gap therebetween substantially filled with an adhesive, such that light propagating along the optical fiber and having a peak intensity I1≥3 GW/m2, exits the fiber end and enters the optical ferrule through the light input surface after traversing the gap through the adhesive, and exits the optical ferrule through the light output surface. The exiting light has a first beam size, such that after at least 100 hours of aging of the optical ferrule assembly, any change in the first beam size due to a photodegradation of the adhesive is no more than about 10%. The adhesive can be prepared by photocuring an optical adhesive formulation.

公开(公告)号：US20230213758A1

公开(公告)日：2023-07-06

申请号：US18063756

申请日：2022-12-09

Applicant: 3M Innovative Properties Company

Inventor： Karl K. Stensvad ,  Xuexue Guo ,  Craig R. Schardt ,  Bing Hao ,  Andrea Alu ,  Michele Cotrufo ,  Matthew M. Markowitz

IPC: G02B27/01 ,  B60K35/00

CPC classification number: G02B27/0103 ,  B60K35/00

Abstract: An optical combiner includes a first layer with a periodic arrangement of structures of a material with a first refractive index. A second layer overlies the structures on the first layer, and the second layer includes a material with a second refractive index. A difference between the first refractive index and the second refractive index, measured at 587.5 nm, is less than 1.5. The periodic arrangement of structures is configured such that the optical combiner produces, for an input signal incident on the first layer from air at an oblique elevation angle of greater than 20°, an output signal with three reflection peaks, each reflection peak having an average reflection of greater than 50% within a ±3° range of the elevation angle.

公开(公告)号：US20220357513A1

公开(公告)日：2022-11-10

申请号：US17851384

申请日：2022-06-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Haase ,  Bing Hao

IPC: G02B6/26 ,  G02B6/38

Abstract: A light coupling unit for use in an optical connector includes a waveguide alignment member that receives and aligns at least one optical waveguide. The light coupling unit includes a light redirecting member that has an input surface configured to receive input light from the end face of the optical wave guide. A curved reflective surface of the light redirecting member receives light from the input surface propagating along an input axis and redirects the light such that the redirected light propagates along a different redirected axis. An output surface of the light redirecting member receives the redirected light and transmits the redirected light as output light propagating along an output axis and exiting the light redirecting member. A curved intersection of the curved reflective surface and a first plane formed by the input and redirected axes has a radius of curvature. The curved reflective surface has an axis of revolution disposed in the first plane. The axis of revolution forms a first angle with the redirected axis which is non-zero. The waveguide alignment member is configured such that the end face of the optical wave guide is positioned at a location that is not a geometric focus of the curved reflective surface.

公开(公告)号：US20220342159A1

公开(公告)日：2022-10-27

申请号：US17851478

申请日：2022-06-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Haase ,  Bing Hao ,  Changbao Ma ,  Terry L. Smith

IPC: G02B6/36 ,  G02B6/38

Abstract: A light coupling element including a groove and a light redirecting member is described. The groove is for receiving and aligning an optical waveguide and incudes an open front end and a back end. The light redirecting member includes an input side for receiving light from an optical waveguide received and supported in the groove and a light redirecting side for changing a direction of light received from the input side. The groove may include a bottom surface extending between the front and back ends of the groove and including a raised bottom surface portion raised upwardly relative to an unraised bottom surface portion. The unraised bottom surface portion of the bottom surface may be disposed between the raised bottom surface portion of the bottom surface and the input side of the light redirecting member. Optical coupling assemblies including the light coupling element and an optical waveguide are described.

公开(公告)号：US20220299712A1

公开(公告)日：2022-09-22

申请号：US17619273

申请日：2020-06-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bing Hao ,  James M. Nelson

IPC: G02B6/38

Abstract: A structured surface reduces optical reflectance at a predetermined wavelength in a first wavelength range extending from 600 nm to 1700 nm. The structured surface includes a plurality of parallel linear structures arranged along a first direction and extending along an orthogonal second direction. Each linear structure includes opposing nonlinear facets meeting at a peak extending along the second direction. An average spacing between the peaks of adjacent linear structures is less than the predetermined wavelength, such that for light having the predetermined wavelength and incident on the structured surface in a direction substantially perpendicular to the first and second directions, the structured surface has a reflectance Rx

公开(公告)号：US11307362B2

公开(公告)日：2022-04-19

申请号：US15763526

申请日：2016-10-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Haase ,  Terry L. Smith ,  Bing Hao ,  Changbao Ma

IPC: G02B6/36 ,  G02B6/38

Abstract: An optical ferrule includes at least one light affecting element configured to affect one or more characteristics of light from an optical waveguide as the light propagates in the optical ferrule, the light affecting element having an input surface. At least one receiving element receives and secures the optical waveguide to the ferrule so that an output surface of the waveguide is optically coupled to the input surface of the light affecting element. A waveguide stop limits movement of the waveguide toward the input surface of the light affecting element when the optical waveguide is installed in the receiving element. A space between the output surface of the optical waveguide and the input surface of the light affecting element is inaccessible to the optical waveguide when the optical waveguide is installed in the receiving element.

公开(公告)号：US20210098546A1

公开(公告)日：2021-04-01

申请号：US17044367

申请日：2019-04-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nicholas C. Erickson ,  David G. Freier ,  Robert L. Brott ,  Bing Hao ,  David A. Rosen ,  Stephen M. Menke ,  Bert T. Chien ,  Song Taek Lee ,  Encai Hao ,  Zhaohui Yang ,  Albert I. Everaerts ,  Yongshang Lu ,  William Blake Kolb ,  Keith R. Bruesewitz ,  Adam D. Haag ,  Sun-Yong Park ,  Timothy J. Nevitt (Deceased) ,  Brianna N. Wheeler ,  Jody L. Peterson ,  Gilles J. Benoit

IPC: H01L27/32

Abstract: An OLED display including a display panel and a color-correction component is described. A plurality of comparative display panels otherwise equivalent to the display panel but having one or more different optical thicknesses of OLED layers have a maximum white-point color shift from 0 to 45 degrees of WPCSC45 and a white-point axial efficiency of WPAEC. The plurality of comparative display panels defines a performance curve along a boundary of performance points. The OLED display and the display panel have respective maximum white-point color shifts from 0 to 45 degrees of WPCS45 and WPCS045 and respective white-point axial efficiencies of WPAE and WPAE0. WPCS045 and WPAE0 defines a performance point of the display panel to the right of the performance curve and WPCS45 and WPAE defines a performance point of the OLED display above or to the left of the performance curve. Methods of making the OLED display are described.

公开(公告)号：US20210018660A1

公开(公告)日：2021-01-21

申请号：US16955376

申请日：2018-12-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Paul B. Armstrong ,  Bing Hao

IPC: G02B5/02 ,  H01L51/52 ,  C09D133/08

Abstract: Described herein is a composition including a polymeric matrix having a first refractive index, and a plurality of particles dispersed therein, wherein each particle within the plurality of particles comprises an inorganic core and polymer chains grafted thereon, wherein the particle has a second refractive index that is different from the first refractive index.

公开(公告)号：US10802225B2

公开(公告)日：2020-10-13

申请号：US16237872

申请日：2019-01-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Haase ,  Bing Hao

IPC: G02B6/38 ,  G01M11/00

Abstract: An inspection device for an optical ferrule includes one or more reflectors. Each reflector has a mating surface and a mirror disposed at an oblique angle with respect to the mating surface. Each reflector is configured to mate with the optical ferrule when the optical ferrule is disposed within a housing of an optical connector. When the mating surface of the reflector is in mated contact with the mating surface of the optical ferrule, the mirror is positioned to provide a reflected view of at least a portion of a mating surface of the optical ferrule.

公开(公告)号：US10656312B2

公开(公告)日：2020-05-19

申请号：US15737362

申请日：2016-06-22

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Justin P. Meyer ,  Martin B. Wolk ,  Thomas R. Hoffend, Jr. ,  Steven J. McMan ,  Daniel W. Hennen ,  Evan L. Schwartz ,  Michael Benton Free ,  Manoj Nirmal ,  Bing Hao ,  John F. Reed ,  Charles A. Marttila

IPC: G02B5/02 ,  F21S11/00 ,  B32B7/12 ,  B32B17/10 ,  F21V3/04

Abstract: Microoptical layers, glazing units including the microoptical layers, and transfer tapes that may be used to provide the microoptical layers are provided. The transfer tape includes a removable template layer having a structured surface, a backfill layer having a first surface disposed on at least a portion of the structured surface of the template layer, and a microstructured surface opposite the structured surface. The microstructured surface together with a layer disposed on the microstructured surface is an anisotropic diffuser.