公开(公告)号：US20210215866A1

公开(公告)日：2021-07-15

申请号：US17215625

申请日：2021-03-29

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Kristopher J. Derks

IPC: G02B5/30 ,  G02B27/28 ,  G02F1/1335

Abstract: A polarizer stack including an absorbing polarizer and a multilayer polymeric reflective polarizer bonded together is described. The absorbing polarizer has a first block axis and the reflective polarizer has a second block axis substantially parallel to the first block axis. The reflective polarizer may be substantially free of micro-wrinkling when the polarizer stack adhered to a glass layer is heated at 95° C. for 100 hours.

公开(公告)号：US20210116747A1

公开(公告)日：2021-04-22

申请号：US16487109

申请日：2018-02-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Timothy J. Nevitt ,  Carl A. Stover ,  Andrew J. Ouderkirk ,  Robert D. Taylor ,  Zhaohui Yang

IPC: G02F1/1335 ,  G02B5/30

Abstract: Optical films are disclosed that include a plurality of interference layers. Each interference layer reflects or transmits light primarily by optical interference. The total number of the interference layers is less than about 1000. For a substantially normally incident light in a predetermined wavelength range, the plurality of interference layers has an average optical transmittance greater than about 85% for a first polarization state, an average optical reflectance greater than about 80% for an orthogonal second polarization state, and an average optical transmittance less than about 0.2% for the second polarization state.

公开(公告)号：US20200319388A1

公开(公告)日：2020-10-08

申请号：US16650519

申请日：2018-09-28

Applicant: Ted Ringsred ,  3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gregg A. Ambur ,  Jo A. Etter ,  Adam D. Haag ,  Carl A. Stover ,  Timothy J. Nevitt ,  Zhisheng Yun ,  Timothy L. Wong

IPC: G02B5/30 ,  G02B27/28

Abstract: An optical system including a first optical element having a curved first major surface and an optical stack bonded and conforming to the curved first major surface of the first optical element is described. The optical stack includes a reflective polarizer substantially transmitting light having a first polarization state and substantially reflecting light having an orthogonal second polarization state and a non-adhesive flexible optical layer bonded to the reflective polarizer and comprising substantially parallel opposing first and second major surfaces. At least one location on the non-adhesive flexible optical layer has an optical retardance of less than about 100 nm or greater than about 200 nm at a wavelength of about 550 nm.

公开(公告)号：US20170315267A1

公开(公告)日：2017-11-02

申请号：US15651690

申请日：2017-07-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Timothy J. Hebrink ,  Martin E. Denker ,  Jeffrey N. Jackson ,  Kristopher J. Derks ,  Michael F. Weber ,  Anna A. Kobilansky ,  Joan M. Strobel ,  Barry S. Rosell ,  John P. Purcell ,  Kevin M. Hamer ,  Robert D. Taylor ,  William B. Black ,  Richard J. Thompson ,  Gregory L. Bluem

IPC: G02B1/04 ,  B32B27/32

CPC classification number: G02B1/04 ,  B32B27/32 ,  Y10T428/24372 ,  Y10T428/25 ,  Y10T428/31507 ,  Y10T428/31739 ,  Y10T428/31786 ,  Y10T428/31935 ,  Y10T428/31938

Abstract: Optical bodies are disclosed that include a first optical film, a second optical film and at least one rough strippable boundary layer disposed between the first and second optical films. Also disclosed are optical bodies including a strippable boundary layer disposed between the first and second optical films and including a first polymer and a second polymer that is substantially immiscible in the first polymer. The present disclosure also provides methods of processing optical bodies that include stretching the optical bodies.

公开(公告)号：US09561629B2

公开(公告)日：2017-02-07

申请号：US14041486

申请日：2013-09-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Timothy J. Hebrink ,  Carl A. Stover ,  Martin E. Denker ,  Jeffery N. Jackson ,  Kristopher J. Derks ,  Michael F. Weber ,  Anna A. Wetzels ,  Joan M. Strobel ,  Barry S. Rosell ,  John P. Purcell ,  Kevin M. Hamer ,  Robert D. Taylor ,  William B. Black ,  Richard J. Thompson ,  Gregory L. Bluem

IPC: B32B27/00 ,  B29D11/00 ,  B32B3/26 ,  B32B7/06 ,  G02B1/12 ,  G02B5/02 ,  G02B5/30 ,  G02B27/28

CPC classification number: B29D11/00788 ,  B32B3/26 ,  B32B7/06 ,  G02B1/12 ,  G02B5/0221 ,  G02B5/0257 ,  G02B5/0268 ,  G02B5/0278 ,  G02B5/305 ,  G02B27/283 ,  Y10T428/24355 ,  Y10T428/24372 ,  Y10T428/25 ,  Y10T428/254

Abstract: Optical bodies are disclosed that include an optical film and at least one rough strippable skin layer. The at least one rough strippable skin layer can include a continuous phase and a disperse phase. In some embodiments, the at least one rough strippable skin layer can include a first polymer, a second polymer different from the first polymer and an additional material that is substantially immiscible in at least one of the first and second polymers. In some exemplary embodiments, a surface of the at least one rough strippable skin layer adjacent to the optical film comprises a plurality of protrusions and the adjacent surface of the optical film comprises a plurality of asymmetric depressions substantially corresponding to said plurality of protrusions. Methods of making such exemplary optical bodies are also disclosed.

Abstract translation: 公开了包括光学膜和至少一个粗糙可剥离表皮层的光学体。 至少一个粗糙的可剥离表皮层可以包括连续相和分散相。 在一些实施方案中，至少一个粗糙的可剥离表皮层可以包括第一聚合物，不同于第一聚合物的第二聚合物和在第一和第二聚合物中的至少一种中基本上不混溶的附加材料。 在一些示例性实施例中，与光学膜相邻的至少一个粗糙可剥离表皮层的表面包括多个突起，并且光学膜的相邻表面包括基本对应于所述多个突起的多个不对称凹部。 还公开了制造这种示例性光学体的方法。

公开(公告)号：US12299239B2

公开(公告)日：2025-05-13

申请号：US18604764

申请日：2024-03-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Bharat R. Acharya ,  Robert D. Taylor ,  Joseph P. Attard ,  Benjamin J. Forsythe ,  David T. Yust ,  Matthew E. Sousa ,  Jason S. Petaja ,  Anthony M. Renstrom ,  William Blake Kolb ,  Matthew S. Cole ,  Matthew S. Stay ,  Matthew R. D. Smith ,  Jeremy O. Swanson ,  Tri D. Pham ,  David A. Rosen ,  Qunyi Chen ,  Lisa A. DeNicola ,  Quinn D. Sanford ,  Carl A. Stover ,  Lin Zhao ,  Gilles J. Benoit

IPC: G06F3/042 ,  F21V8/00 ,  G02B5/02 ,  G02B5/30

Abstract: A display system for sensing a finger of a user applied to the display system includes a display panel; a sensor for sensing the finger; a sensing light source configured to emit a first light having a first wavelength W1; and a reflective polarizer disposed between the display panel and the sensor. For a substantially normally incident light, an optical transmittance of the reflective polarizer versus wavelength for a first polarization state has a band edge such that for a first wavelength range extending from a smaller wavelength L1 to a greater wavelength L2 and including W1, where 30 nm≤L2−L1≤50 nm and L1 is greater than and within about 20 nm of a wavelength L3 corresponding to an optical transmittance of about 50% along the band edge, the optical transmittance has an average of greater than about 75%.

公开(公告)号：US20250123517A1

公开(公告)日：2025-04-17

申请号：US18987262

申请日：2024-12-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Gilles J. Benoit ,  Carl A. Stover ,  Matthew B. Johnson ,  Ryan T. Fabick ,  Quinn D. Sanford

IPC: G02F1/1335 ,  G02F1/13357

Abstract: An optical stack for reflecting and transmitting light in a predetermined wavelength range includes stacked first and second optical films, the predetermined wavelength range defining a first wavelength range and a remaining wavelength range. For normally incident light and for each wavelength in a first wavelength range, the first optical film substantially reflects light having a first polarization state, and substantially transmits light having a second polarization state. For each of the first and second polarization states, for wavelengths in the first wavelength range, the second optical film has a maximum optical transmittance Tmax for light incident at a first incident angle, and an optical transmittance Tmax/2 for light incident at a second incident angle, where the second incident angle is greater than the first incident angle by less than about 50 degrees. For wavelengths in the remaining wavelength range, the second optical film reflects at least 80% of light.

公开(公告)号：US12253702B2

公开(公告)日：2025-03-18

申请号：US17260413

申请日：2019-07-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Adam D. Haag ,  Matthew B. Johnson ,  Carl A. Stover ,  Timothy J. Nevitt

IPC: G02B5/08 ,  B29D11/00 ,  B32B17/10 ,  G02B5/20 ,  G02B5/30 ,  G02B27/01 ,  G02B27/28

Abstract: Optical films are described. In particular, optical films including a reflective polarizer portion and an infrared portion, with no adhesive between these two portions, are described. These optical films may be particularly suitable for combiner applications, including automotive heads up display applications with demanding ambient environments.

公开(公告)号：US12147122B2

公开(公告)日：2024-11-19

申请号：US18558425

申请日：2022-05-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Matthew E. Sousa ,  Bharat R. Acharya ,  Benjamin J. Forsythe ,  Robert D. Taylor ,  Quinn D. Sanford

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357

Abstract: A backlight including a front reflector disposed on a back reflector and defining a cavity therebetween. For a visible wavelength range and for a first incident angle of less than 5 degrees, the front reflector has an average transmittance of less than 20% for the incident light polarized along a first direction, and an average transmittance of between 20% and 85% for the incident light polarized along an orthogonal second direction. For a visible wavelength range and for a second incident angle of greater than 40 degrees, the front reflector has an average transmittance of less than 40% for each of the first and second directions. For at least a first wavelength in an infrared wavelength range, the front reflector has a transmittance of greater than about 40% for each of the first and second incident angles and for each of the first and second directions. For each of the first and second incident angles, for the incident light polarized along each of the first and second directions, the back reflector has a transmittance of greater than 30% for the first infrared wavelength, and an average transmittance of less than 20% in the visible range.

公开(公告)号：US20240255678A1

公开(公告)日：2024-08-01

申请号：US18560744

申请日：2022-05-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Carl A. Stover ,  Benjamin J. Forsythe ,  David A. Rosen ,  Stephen A. Johnson

IPC: G02B5/02 ,  B29D11/00 ,  G02B1/04 ,  G02B5/30

CPC classification number: G02B5/0242 ,  B29D11/00798 ,  G02B1/04 ,  G02B5/0268 ,  G02B5/3083

Abstract: An optically diffusive film (200) includes a plurality of particles (10) dispersed in a binder (20). The particles (10) and the binder (20) have respective indices n1b and n2b along a same in-plane block-direction of the optically diffusive film (200), and respective indices n1p and n2p along an in-plane pass-direction orthogonal to the block-direction, such that for at least a first wavelength in a first wavelength range extending from about 400 nm to about 1000 nm: a magnitude of a difference between n1b and n2b is greater than about 0.05; and a magnitude of a difference between n1p and n2p is less than about 0.05. For substantially normally incident light and for at least the first wavelength, the optically diffusive film (200) may be more optically diffuse for a light polarized along a block-direction (b) and less optically diffusive for light polarized along an orthogonal pass-direction (p).