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公开(公告)号：US20240201428A1
公开(公告)日：2024-06-20
申请号：US18431242
申请日：2024-02-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John D. Le , Zhisheng Yun , Timothy L. Wong , Timothy J. Nevitt , Adam D. Haag , Arthur L. Kotz
IPC: G02B5/30
CPC classification number: G02B5/305
Abstract: Optical films, such as reflective polarizer films, and optical systems including the optical films are described. An optical system includes one or more optical lenses having at least one curved major surface, a partial reflector, and a reflective polarizer. For a substantially normally incident light in a predetermined wavelength range extending at least from about 450 nm to about 600 nm: the partial reflector has an average optical reflectance of at least 30%, and the reflective polarizer has an average optical reflectance Rs for a first polarization state, an average optical transmittance Tp for an orthogonal second polarization state, and an average optical reflectance Rp for the second polarization state, where Tp≥80%, Rp≤1%, and 50%≤Rs≤95%.
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公开(公告)号：US20210215865A1
公开(公告)日：2021-07-15
申请号：US17054247
申请日：2019-07-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John D. Le , Zhisheng Yun , Timothy L. Wong , Timothy J. Nevitt , Adam D. Haag , Arthur L. Kotz
IPC: G02B5/30
Abstract: Optical films, such as reflective polarizer films, and optical systems including the optical films are described. An optical system includes one or more optical lenses having at least one curved major surface, a partial reflector, and a reflective polarizer. For a substantially normally incident light in a predetermined wavelength range extending at least from about 450 nm to about 600 nm: the partial reflector has an average optical reflectance of at least 30%, and the reflective polarizer has an average optical reflectance Rs for a first polarization state, an average optical transmittance Tp for an orthogonal second polarization state, and an average optical reflectance Rp for the second polarization state, where Tp≥80%, Rp≤1%, and 50%≤Rs≤95%.
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公开(公告)号：US10112315B2
公开(公告)日：2018-10-30
申请号：US15747353
申请日：2016-08-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Matthew B. Johnson , Steven P. Floeder , Kristy A. Gillette , Arthur L. Kotz , Michael L. Ruegsegger
Abstract: Optical films having an optical axis with an orientation that varies along a width of the optical film and having one or more indicia recording the orientation of the optical axis at a plurality of locations in the optical film are provided. Systems and methods for producing and for converting the optical films are provided.
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公开(公告)号：US12007595B2
公开(公告)日：2024-06-11
申请号：US18254437
申请日：2021-11-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John D. Le , Gregg A. Ambur , Zhisheng Yun , Robert M. Jennings , Arthur L. Kotz , Timothy L. Wong , David T. Yust , Timothy J. Nevitt , Kayla A. McGrath
Abstract: An optical assembly includes an integral lens assembly having one or more lenses bonded to each other with spaced apart major first and second lens surfaces. First and second optical films are bonded to respective major first and second lens surfaces. The first and second optical films includes a plurality of polymeric layers. Each of the polymeric layers have an average thickness of less than about 500 nm. For a substantially normally incident light and a visible wavelength range the plurality of polymeric layers in the first optical film has an average optical transmittance and an average optical reflectance of greater than about 70% for a first polarization state and an orthogonal second polarization state, respectively. The plurality of polymeric layers in the second optical film has an average optical transmittance of greater than about 70% for at least one of the first and second polarization states.
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公开(公告)号：US20220274359A1
公开(公告)日：2022-09-01
申请号：US17744917
申请日：2022-05-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Jennings , William T. Fay , Jo A. Etter , Arthur L. Kotz , David J.W. Aastuen
Abstract: An optical film includes a plurality of polymeric layers shaped along orthogonal first and second directions. A first curve being an intersection of the optical film with a first plane orthogonal to the second direction and to a reference plane has a best-fit first circular arc subtending a first angle at a center of curvature of the first circular arc of greater than 180 degrees where the optical film has a maximum projected area in the reference plane. A second curve being an intersection of the optical film with a second plane orthogonal to the first direction and to the reference plane has a best-fit second circular arc subtending a second angle at a center of curvature of the second circular arc of at least 30 degrees. Reflectance and transmittance of the optical film are described.
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Patent Agency Ranking
公开(公告)号：US11327010B2
公开(公告)日：2022-05-10
申请号：US16965632
申请日：2019-01-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Joseph R. Nesbitt , Steven P. Floeder , Michael L. Ruegsegger , Crystal A. Dehn , Arthur L. Kotz
IPC: G01N21/3563 , G01N21/359 , G01N21/86 , G01N21/88
Abstract: System and technique for inspecting a moving film by measuring the levels of light transmission through a thickness dimension of the film are described. The system includes a light source configured to provide light including a particular wavelength, or a particular range of wavelengths. The light from the light source is directed toward a first surface of the film, and an image capturing device is located adjacent to the light source on a second side of the film opposite the first surface, the image capturing device configured to measure the levels of light intensity exiting a second surface of the film. Measurements of the level of the light intensity passing through the film may be spatially synchronized to physical positions along the film to generated at least one roll map indicative of light transmission characteristics of the film over the imaged portions of the film.
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公开(公告)号：US20210041355A1
公开(公告)日：2021-02-11
申请号：US16965632
申请日：2019-01-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Joseph R. Nesbitt , Steven P. Floeder , Michael L. Ruegsegger , Crystal A. Dehn , Arthur L. Kotz
IPC: G01N21/3563 , G01N21/359 , G01N21/86 , G01N21/88
Abstract: System and technique for inspecting a moving film by measuring the levels of light transmission through a thickness dimension of the film are described. The system includes a light source configured to provide light including a particular wavelength, or a particular range of wavelengths. The light from the light source is directed toward a first surface of the film, and an image capturing device is located adjacent to the light source on a second side of the film opposite the first surface, the image capturing device configured to measure the levels of light intensity exiting a second surface of the film. Measurements of the level of the light intensity passing through the film may be spatially synchronized to physical positions along the film to generated at least one roll map indicative of light transmission characteristics of the film over the imaged portions of the film.
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公开(公告)号：US20250035948A1
公开(公告)日：2025-01-30
申请号：US18716630
申请日：2022-11-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John D. Le , Matthew C. Dachel , Benjamin G. Sonnek , Arthur L. Kotz , David J.W. Aastuen , Timonthy L. Wong
Abstract: An optical stack includes a reflective polarizer disposed on, and substantially conforming to, a major surface of an optical lens. The reflective polarizer substantially reflects light having a first polarization state and substantially transmits light having an orthogonal second polarization state. The optical lens has an optical retardance of greater than 10 nm at a first location in a largest optically active region of the optical lens. A same principal axis of the optical retardance is aligned with a same one of the first and second polarization states to within about 10 degrees at the first location.
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公开(公告)号：US11865808B2
公开(公告)日：2024-01-09
申请号：US17744917
申请日：2022-05-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Robert M. Jennings , William T. Fay , Jo A. Etter , Arthur L. Kotz , David J. W. Aastuen
CPC classification number: B32B1/00 , B29C51/428 , B29D11/0073 , B29D11/00644 , B29D11/00932 , B32B2307/416
Abstract: An optical film includes a plurality of polymeric layers shaped along orthogonal first and second directions. A first curve being an intersection of the optical film with a first plane orthogonal to the second direction and to a reference plane has a best-fit first circular arc subtending a first angle at a center of curvature of the first circular arc of greater than 180 degrees where the optical film has a maximum projected area in the reference plane. A second curve being an intersection of the optical film with a second plane orthogonal to the first direction and to the reference plane has a best-fit second circular arc subtending a second angle at a center of curvature of the second circular arc of at least 30 degrees. Reflectance and transmittance of the optical film are described.
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公开(公告)号：US20240004117A1
公开(公告)日：2024-01-04
申请号：US18254437
申请日：2021-11-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John D. Le , Gregg A. Ambur , Zhisheng Yun , Robert M. Jennings , Arthur L. Kotz , Timothy L. Wong , David T. Yust , Timothy J. Nevitt , Kayla A. McGrath
IPC: G02B5/30
Abstract: An optical assembly includes an integral lens assembly having one or more lenses bonded to each other with spaced apart major first and second lens surfaces. First and second optical films are bonded to respective major first and second lens surfaces. The first and second optical films includes a plurality of polymeric layers. Each of the polymeric layers have an average thickness of less than about 500 nm. For a substantially normally incident light and a visible wavelength range the plurality of polymeric layers in the first optical film has an average optical transmittance and an average optical reflectance of greater than about 70% for a first polarization state and an orthogonal second polarization state, respectively. The plurality of polymeric layers in the second optical film has an average optical transmittance of greater than about 70% for at least one of the first and second polarization states.
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