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公开(公告)号：US09562998B2
公开(公告)日：2017-02-07
申请号：US14651300
申请日：2013-12-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： William F. Edmonds , Nathaniel K. Naismith , Martin B. Wolk , Michael Benton Free , William W. Merrill , David T. Yust , John F. Van Derlofske, III , Jun Xiao , Albert T. Schmitz
IPC: G06K7/10 , G06K19/06 , G02B5/20 , G09F13/16 , G02B5/28 , G02B5/02 , G02B5/12 , G06K7/14 , H04N5/225 , G02B5/22 , G09F3/00 , G09F3/10 , G06K7/12
CPC classification number: G02B5/208 , G02B5/0284 , G02B5/12 , G02B5/201 , G02B5/223 , G02B5/285 , G06K7/12 , G06K7/1447 , G06K19/06103 , G06K19/0614 , G09F3/0294 , G09F3/0297 , G09F3/10 , G09F13/16 , H04N5/2256
Abstract: Tags are made from optical films to provide a pattern that is inconspicuous to ordinary observers, but that is detectable by a camera or other imaging device. The pattern is provided by first and second portions of a patterned layer, the first portions selectively filtering at least a portion of blue visible light from other visible light wavelengths. Filtering in the portion of the blue region helps make the pattern inconspicuous. The tags may also include an indicia layer configured to mark a location of the pattern, and a contrast enhancing layer disposed behind the patterned layer and configured to enhance a contrast of the pattern. In some cases, the first portions of the patterned layer may filter optical wavelengths other than blue, such as near-infrared light. The pattern may comprise machine-readable information, e.g., a linear bar code or a 2-D bar code. Associated methods and systems are also disclosed.
Abstract translation: 标签由光学膜制成，以提供与普通观察者不相似的图案，但是可通过相机或其他成像装置检测。 该图案由图案化层的第一和第二部分提供，第一部分选择性地从其它可见光波长过滤至少一部分蓝色可见光。 在蓝色区域的部分过滤有助于使图案不显眼。 标签还可以包括被配置为标记图案的位置的标记层和设置在图案化层后面并且被配置为增强图案的对比度的对比度增强层。 在一些情况下，图案化层的第一部分可以滤除蓝色以外的光波长，例如近红外光。 该图案可以包括机器可读信息，例如线性条形码或2-D条形码。 还公开了相关的方法和系统。
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公开(公告)号：US20240256088A1
公开(公告)日：2024-08-01
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
CPC classification number: G06F3/0421 , G02B5/0226 , G02B5/305 , G02B6/0051
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%.
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公开(公告)号：US20240184030A1
公开(公告)日：2024-06-06
申请号：US18279638
申请日：2022-02-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Kevin T. Huseby , Stephen A. Johnson , Samuel A. Minno , Lin Zhao , William T. Fay , David T. Yust , Adam D. Haag
CPC classification number: G02B5/305 , G02B5/26 , G02B5/3083
Abstract: A multilayer optical film includes a plurality of optical repeat units which may number less than about 175 in total and which may have a combined average thickness of less than about 20 micrometers. Each of the optical repeat units includes at least four individual layers which may include at least one polymeric A layer, at least two B layers, and at least one polymeric C layer. At least one layer in the at least four individual layers can have an average thickness of less than about 50 nm. An interlayer adhesion of the individual layers in the plurality of optical repeat units can be at least about 14 grams per inch when measured at a 90 degree peel angle. The multilayer optical film may be a reflective polarizer or a multilayer optical mirror.
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公开(公告)号：US11885999B2
公开(公告)日：2024-01-30
申请号：US17996676
申请日：2021-05-04
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
CPC classification number: G02B6/0056 , G02B6/0051 , G06V40/1318
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.
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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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Patent Agency Ranking
公开(公告)号：US20230214062A1
公开(公告)日：2023-07-06
申请号：US17996583
申请日：2021-05-04
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
CPC classification number: G06F3/0421 , G02B5/305 , G02B5/0226 , G02B6/0051
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 mn≤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%.
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公开(公告)号：US11686891B2
公开(公告)日：2023-06-27
申请号：US16462249
申请日：2016-12-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Gilles J. Benoit , Guanglei Du , Steven R. Anderson , Owen M. Anderson , David T. Yust , Rolf W. Biernath , Gary E. Gaides , Brian W. Lueck , Neeraj Sharma
CPC classification number: G02B5/22 , G01J3/0229 , A61B5/02427 , A61B5/681 , G02B2207/123
Abstract: A detector system is described that includes a detector that is sensitive to wavelengths in a detection wavelength range. The detector system further includes a light control film that is disposed on the detector and includes a plurality of alternating first and second regions. Each first region has a width W and a height H, where H/W≥1. Each first region has a substantially low transmission in a first portion of the detection wavelength range and a substantially high transmission in the remaining portion of the detection wavelength range. Each second region has a substantially high transmission in the detection wavelength range.
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公开(公告)号：US11640019B2
公开(公告)日：2023-05-02
申请号：US16462251
申请日：2016-12-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Gilles J. Benoit , Guanglei Du , Steven R. Anderson , Owen M. Anderson , David T. Yust , Rolf W. Biernath , Gary E. Gaides , Brian W. Lueck , Neeraj Sharma
IPC: G02B5/124 , G02B5/136 , G02B5/12 , G02B5/00 , G02F1/1335
Abstract: A retroreflective system is disclosed that includes a retroreflective sheet for retroreflecting light, and a light control film disposed on the retroreflective sheet. For a first wavelength, light incident on the light control film at each of a first and second angles of incidence is retroreflected. For a second wavelength, light incident on the light control film at the first, but not the second, angle of incidence is retroreflected.
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公开(公告)号：US20220004015A1
公开(公告)日：2022-01-06
申请号：US17292972
申请日：2019-12-04
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： David J.W. Aastuen , Zhisheng Yun , Timothy J. Nevitt , John D. Le , Susan L. Kent , Gilles J. Benoit , David T. Yust
Abstract: An optical film and a polarizing beam splitter (PBS) including the optical film is described. The optical film includes a first optical stack disposed on, and spaced apart by one or more spacer layers from, a second optical stack. When the optical film is disposed between, and adhered to, hypotenuses of first and second prisms to form a PBS and a cone of light is incident on the PBS making an incident angle of about 40 to 50 degrees with the optical film, the PBS has: an average optical reflectance Rs greater than about 95% for a first polarization state; an average optical transmittance Ts less than about 0.012% for the first polarization state; an average optical transmittance Tp less than about 98.5% for a second polarization state; and an average optical reflectance Rp less than about 0.25% for the second polarization state.
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公开(公告)号：US20210263203A1
公开(公告)日：2021-08-26
申请号：US17302662
申请日：2021-05-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Guanglei Du , David T. Yust , Neeraj Sharma , Gilles J. Benoit , Ellison G. Kawakami , Anthony M. Renstrom
IPC: G02B5/20
Abstract: An article includes an optical filter that comprises a wavelength selective reflective layer and at least one wavelength selective absorbing layer. The optical filter has visible transmittance between 400 nm-700 nm of less than about 30% and near infrared transmittance at 830 nm-900 nm greater than about 30%.
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