公开(公告)号：WO2021070027A1

公开(公告)日：2021-04-15

申请号：PCT/IB2020/059277

申请日：2020-10-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： LIU, Tao ,  BOYD, Gary T. ,  ROSEN, David A. ,  ACHARYA, Bharat R. ,  GOTRIK, Kevin W. ,  ROWE, David J. ,  NELSON, Caleb T.

IPC: G02F1/13357

Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof and a light redirecting layer disposed on the extended emission surface. The light redirecting layer has a structured major surface that includes a regular array of light redirecting structures, each light redirecting structure including a plurality of facets; and a plurality of discrete spaced apart window segments. The optical system includes a plurality of reflective segments where each reflective segment is disposed on a corresponding window segment. For substantially normally incident light, each reflective segment has a total: average optical reflectance of at least 30% in a visible wavelength range extending from about 420 nm to about 650 nm; and optical transmittance of at least 10% for at least one infrared wavelength in an infrared wavelength range extending from about 800 nm to about 1200 nm.

公开(公告)号：WO2021224782A1

公开(公告)日：2021-11-11

申请号：PCT/IB2021/053718

申请日：2021-05-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ACHARYA, Bharat R. ,  TAYLOR, Robert D. ,  ATTARD, Joseph P. ,  FORSYTHE, Benjamin J. ,  YUST, David T. ,  SOUSA, Matthew E. ,  PETAJA, Jason S. ,  RENSTROM, Anthony M. ,  KOLB, William Blake ,  COLE, Matthew S. ,  STAY, Matthew S. ,  SMITH, Matthew R.D. ,  SWANSON, Jeremy O. ,  PHAM, Tri D. ,  ROSEN, David A. ,  CHEN, Qunyi ,  DENICOLA, Lisa A. ,  SANFORD, Quinn D. ,  STOVER, Carl A. ,  ZHAO, Lin ,  BENOIT, Gilles J.

IPC: G02B5/02 ,  G02B5/30 ,  G02F1/13357

Abstract: An optical construction includes a reflective polarizer and an optically diffusive film disposed on the reflective polarizer. The reflective polarizer includes an outer layer including a plurality of first particles partially protruding from a first major surface thereof to form a structured major surface. A first optically diffusive layer is conformably disposed on the structured major surface. The optically diffusive film includes a second optically diffusive layer including a plurality of nanoparticles dispersed therein, and a structured layer including a structured major surface. For a substantially normally incident light and a visible wavelength range from about 450 nm to about 650 nm and an infrared wavelength range from about 930 nm to about 970 nm, the second optically diffusive layer has an average specular transmittance Vs in the visible wavelength range and an average specular transmittance Is in the infrared wavelength range, where Is/Vs ≥ 2.5.

公开(公告)号：WO2021191749A1

公开(公告)日：2021-09-30

申请号：PCT/IB2021/052244

申请日：2021-03-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ROSEN, David A. ,  ACHARYA, Bharat R.

IPC: G02F1/13357 ,  G02F1/1335 ,  F21V8/00 ,  G02B6/0051 ,  G02B6/0053 ,  G02B6/0055 ,  G02B6/0056 ,  G02F1/133536 ,  G02F1/133615 ,  G02F1/13362

Abstract: An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof, and an optical stack disposed on the extended emission surface and including a first reflective polarizer disposed on a first light redirecting layer. The extended illumination source includes at least one light source, and a reflecting layer spaced apart from and substantially co-extensive with, the extended emission surface, the reflecting layer configured to reflect incident light that is emitted from the at least one light source toward the extended emission surface. The first light redirecting layer is disposed between the first reflective polarizer and the extended emission surface and includes a plurality of first truncated structures, each first truncated structure having opposing side surfaces making an angle between about 60 degrees to about 120 degrees with each other and a substantially planar top surface joining the opposing side surfaces.

公开(公告)号：WO2022238825A1

公开(公告)日：2022-11-17

申请号：PCT/IB2022/054172

申请日：2022-05-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： BATES, Daniel S. ,  SCHARDT, Craig R. ,  JOSE, Jincy ,  ROSEN, David A. ,  FREIER, David G. ,  PANKRATZ, Stephan J.

IPC: G02B27/01 ,  G02B27/28 ,  G02B27/0101 ,  G02B27/288

Abstract: An optical system includes a display, a reflective polarizer, and a glare trap. The glare trap includes a plurality of slats having a length L and a width W, L/W ≥ 10. The slats form a plurality of elongated slots therebetween substantially filled with air. The reflective polarizer has an average optical reflectance of at least 40% for a first polarization state and an average optical transmittance of at least 40% for an orthogonal second polarization state. For each of the first and second polarization states, the glare trap has an average specular optical transmittance of between about 20% to about 80% and an average total optical reflectance of less than about 20%. For at least one wavelength in the visible wavelength range, an optical transmittance of the glare trap includes a first transmittance peak at a first peak angle with a corresponding FWHM of less than about 30 degrees.

公开(公告)号：WO2020243939A1

公开(公告)日：2020-12-10

申请号：PCT/CN2019/090270

申请日：2019-06-06

Applicant: 3M INNOVATIVE PROPERTIES COMPANY ,  WU, Hao

Inventor： WU, Hao ,  YUN, Zhisheng ,  WILLETT, Stephen J. ,  SCHARDT, Craig R. ,  BENOIT, Gilles J. ,  KOTCHICK, Keith M. ,  SHIRK, Ryan C. ,  ROSEN, David A.

IPC: G02B27/01

Abstract: An optical system includes a reflective polarizer (20), and a display (10), first mirror (30a), and second mirror (30b) disposed on a same side of the reflective polarizer (20). The reflective polarizer (20) transmits an image emitted by the display (10) after the image is reflected by the first and second mirrors (30a, 30b). A mid-plane defined by intersection points between an optical axis of the system and the display (10), reflective polarizer (20), and second mirror (30b) has one-pass through four-pass regions having respective areas, A1 through A4. The one-pass region includes portions of the emitted image rays (15) that pass at least one time across the one-pass region, the two-pass region includes portions of the image rays (15) that pass at least two times across the two-pass region, the three-pass region includes portions of the image rays (15) that pass at least three times across the three-pass region, and the four-pass region includes portions of the image rays (15) that pass four times across the four-pass region, such that the ratio A4/A3 is between approximately 0.15 and approximately 0.40.

公开(公告)号：WO2019012428A1

公开(公告)日：2019-01-17

申请号：PCT/IB2018/055084

申请日：2018-07-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： ROSEN, David A. ,  DERKS, Kristopher J. ,  PHAM, Tri D. ,  EPSTEIN, Kenneth A. ,  LAMB, David J.

IPC: G02B5/02

Abstract: An optical film includes a microstructured surface having a plurality of irregularly arranged planar portions forming greater than about 10% of the microstructured surface. The microstructured surface may be configured such that, when the microstructured surface is placed on an emission surface of a lightguide with a first luminous distribution of light exiting the lightguide from the emission surface in a first plane perpendicular to the emission surface, the light emitted by the lightguide is transmitted by the microstructured surface at a second luminous distribution of the transmitted light in the first plane. The first luminous distribution includes a first peak making a first angle greater than about 60 degrees with a normal to the microstructured surface. The second luminous distribution includes a second peak making a second angle in a range from about 5 degrees to about 35 degrees with the normal to the microstructured surface.

公开(公告)号：WO2022248952A1

公开(公告)日：2022-12-01

申请号：PCT/IB2022/054163

申请日：2022-05-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： STOVER, Carl A. ,  FORSYTHE, Benjamin J. ,  ROSEN, David A. ,  JOHNSON, Stephen A.

IPC: G02B5/02 ,  G02B5/30

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).

公开(公告)号：WO2022090835A1

公开(公告)日：2022-05-05

申请号：PCT/IB2021/059054

申请日：2021-10-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： KONG, Steven H. ,  ERICKSON, Nicholas C. ,  ROSEN, David A.

IPC: G02B5/02

Abstract: An optically diffusive film includes a structured first major surface with a plurality of substantially parallel, substantially planar first surfaces arranged across the first major surface at a plurality of different first height levels. A height difference between any two of the first surfaces is S times Hmin, where S is a number within 15% of an integer and Hmin is a height difference between lowest and next-lowest first surfaces. For a substantially collimated incident light and for a first wavelength in a human-visible wavelength range, the optically diffusive film has an optical haze, Hv, and an optical clarity, Cv, and for a second wavelength in an infrared wavelength range, the optically diffusive film has an optical haze, Hi, and an optical clarity, Ci, such that the ratio Hv/Hi is greater than or equal to 1.5 and the ratio Ci/Cv is greater than or equal to 1.5.

公开(公告)号：WO2021224716A1

公开(公告)日：2021-11-11

申请号：PCT/IB2021/053423

申请日：2021-04-26

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： PHAM, Tri D. ,  ROSEN, David A. ,  CHEN, Qunyi ,  DENICOLA, Lisa A. ,  SANFORD, Quinn D. ,  COLE, Matthew S. ,  ACHARYA, Bharat R. ,  SOUSA, Matthew E. ,  TAYLOR, Robert D. ,  FORSYTHE, Benjamin J.

IPC: G02B5/02 ,  G02B5/30

Abstract: An optically diffusive film includes an optical substrate layer with opposing first and second major surfaces; and an optical layer disposed on the second major surface of the optical substrate layer and including a structured major surface having a plurality of spaced apart elongated structures elongated along a same first direction and arranged at a substantially uniform density, each elongated structure including a peak such that, in a plane of a cross-section of the elongated structure that is parallel to the first direction and comprises the peak, the elongated structure has a substantially flat top region; wherein for substantially normally incident light and a visible wavelength range and an infrared wavelength range, the optical substrate layer has an average total transmittance or reflectance of greater than about 60% in the visible wavelength range and an average specular transmittance of greater than about 60% in the infrared wavelength range.

公开(公告)号：WO2021111297A1

公开(公告)日：2021-06-10

申请号：PCT/IB2020/061327

申请日：2020-12-01

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： YANG, Zhaohui ,  MARKOWICZ, Przemyslaw P. ,  ROEHRIG, Mark A. ,  PHAM, Tri D. ,  SCHLEUSNER, Serena L. ,  ROSEN, David A. ,  LIU, Yang

IPC: G02B5/00 ,  H01L27/14 ,  G06T1/00 ,  G02F1/13357

Abstract: An optical system includes a lens layer including a plurality of microlenses arranged along orthogonal first and second directions, and at least one optically opaque mask layer spaced apart from the lens layer and defining a plurality of through openings therein arranged along the first and second directions. There is a one-to-one correspondence between the microlenses and the openings, such that for each microlens, the microlens and corresponding openings are substantially centered on a straight line making a same oblique angle with the lens layer. An optical layer can include the lens layer and the optically opaque mask layer embedded in the optical layer.