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公开(公告)号：US20220019014A1
公开(公告)日：2022-01-20
申请号：US17309605
申请日：2019-12-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Kenneth A. Epstein , Nicholas A. Johnson
IPC: F21V8/00 , G02B5/02 , G02B5/04 , G02F1/13357
Abstract: An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures comprises a plurality of lenticular prisms separated by substantially flat land areas, the lenticular prisms having a rounded tip and two sides comprising a linear base section and a linear tip section connected by a polynomial blend section.
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公开(公告)号：US20140335309A1
公开(公告)日：2014-11-13
申请号：US14356645
申请日：2013-01-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Bryan V. Hung , Corey D. Balts
IPC: G02B5/04
CPC classification number: G02B5/045 , G02B5/0221 , G02B5/0231 , G02B5/0278 , G02F1/133504 , Y10T428/24355
Abstract: Light directing films have a surface comprising a plurality of microstructures with peaks extending along a length of the surface. Each microstructure includes a plurality of elevated portions and a plurality of non-elevated portions. A void diameter, D?c#191, of the largest circle that can be overlaid on the surface of the light directing film without including at least a portion of an elevated portion is less than about 0.5 mm. The light directing film cannot be divided into a plurality of same size and shape grid cells forming a continuous two-dimensional grid, where each of at least 90% of the grid cells comprise either a single leading edge of an elevated portion, or a portion of an elevated portion where the elevated portion has a length that is greater than the average length of the elevated portions.
Abstract translation: 光引导膜具有包括具有沿着表面的长度延伸的峰的多个微结构的表面。 每个微结构包括多个提升部分和多个非升高部分。 可以覆盖在导光膜的表面上的最大圆的空隙直径D≥c＃191不包括升高部分的至少一部分小于约0.5mm。 导光膜不能分成形成连续二维网格的多个相同尺寸和形状的网格单元，其中至少90％的网格单元中的每一个包括升高部分的单个前缘，或部分 其中升高部分的长度大于升高部分的平均长度。
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公开(公告)号：US11448814B2
公开(公告)日：2022-09-20
申请号：US17309605
申请日：2019-12-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Kenneth A. Epstein , Nicholas A. Johnson
IPC: F21V8/00 , G02B5/02 , G02B5/04 , G02F1/13357
Abstract: An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures comprises a plurality of lenticular prisms separated by substantially flat land areas, the lenticular prisms having a rounded tip and two sides comprising a linear base section and a linear tip section connected by a polynomial blend section.
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公开(公告)号：US11099314B2
公开(公告)日：2021-08-24
申请号：US16475327
申请日：2018-01-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kenneth A. Epstein , Nicholas A. Johnson , Robert M. Emmons
IPC: F21V8/00
Abstract: Optical system including a lightguide; a turning film, including a first smooth surface perpendicular to a display axis and a first structured surface including a plurality of first microstructures defining a first plurality of parallel grooves, where the turning film is optically coupled to the lightguide, where the turning film outputs light collimated in a first plane parallel to the display axis; and a lenticular diffuser, including a second smooth surface perpendicular to the display axis and a second structured surface comprising a plurality of second microstructures defining a second plurality of parallel grooves extending along a plane perpendicular to the display axis, where the lenticular diffuser is optically coupled to the turning film, where the lenticular diffuser reflects or refracts collimated light toward a second plane perpendicular to the first plane; where the first plurality of parallel grooves is perpendicular to the second plurality of parallel grooves.
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公开(公告)号：US12189150B2
公开(公告)日：2025-01-07
申请号：US17309604
申请日：2019-12-20
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Kenneth A. Epstein , Bryan V. Hunt
Abstract: An optical system comprises a turning film and a lenticular diffuser. The lenticular diffuser comprises a structured surface comprising a plurality of microstructures each comprising a lenticular prism having linear end sections connected by a blend section separated by a substantially flat land area, wherein the blend section shape is a segment of an ellipse of 2nd, 4th or 6th order polynomial.
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Patent Agency Ranking
公开(公告)号：US20180100963A1
公开(公告)日：2018-04-12
申请号：US15568897
申请日：2016-04-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Robert M. Emmons , Kenneth A. Epstein
CPC classification number: G02B6/0056 , G02B5/0231 , G02B5/3083 , G02B6/0025 , G02B6/0053 , G02B6/0055 , G02B6/0091
Abstract: Optical films are described. In particular, optical films that include top and bottom structured surfaces are described. Films that may be suitable for use in backlights as turning films or recycling films are also described. Optical films described may include reflective polarizers and optically birefringent substrates.
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公开(公告)号：US11307333B2
公开(公告)日：2022-04-19
申请号：US16475186
申请日：2018-01-03
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , Kenneth A. Epstein
Abstract: An optical system including a light guide and a turning film that includes a first major surface, where the first major surface is substantially smooth and a second major surface including a plurality of asymmetric microstructures each respective asymmetric microstructure including a first side, where the first side is substantially planar, and a second side including a first surface segment defining a substantially planar surface and a second surface segment defining a non-planar surface.
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公开(公告)号：US10775547B2
公开(公告)日：2020-09-15
申请号：US16497012
申请日：2018-03-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , David A. Rosen , Nicholas A. Johnson , Gary T. Boyd , Trevor W. Stolber , Owen M. Anderson , Graham M. Clarke , Sherie A. Kristie , Edward C. Roberts , Kristy A. Gillette
IPC: F21V8/00
Abstract: A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.
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公开(公告)号：US20200103578A1
公开(公告)日：2020-04-02
申请号：US16497012
申请日：2018-03-12
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Emmons , David A. Rosen , Nicholas A. Johnson , Gary T. Boyd , Trevor W. Stolber , Owen M. Anderson , Graham M. Clarke , Sherie A. Kristie , Edward C. Roberts , Kristy A. Gillette
IPC: F21V8/00
Abstract: A lightguide having opposing first and second major surfaces where the first major surface includes a plurality of extended features and a plurality of discrete features is described. The lightguide has a viewable area having a length at least 100 times a thickness of the lightguide. The extended features extend in a first in-plane direction across at least 90 percent of the length L of the viewable area. The discrete features are spaced apart along the length and width of the viewable area. The discrete features may be disposed in spaces between the extended features. The discrete features may have faces extending between and connecting adjacent extended features.
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公开(公告)号：US10288796B2
公开(公告)日：2019-05-14
申请号：US15568897
申请日：2016-04-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gary T. Boyd , Robert M. Emmons , Kenneth A. Epstein
Abstract: Optical films are described. In particular, optical films that include top and bottom structured surfaces are described. Films that may be suitable for use in backlights as turning films or recycling films are also described. Optical films described may include reflective polarizers and optically birefringent substrates.
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