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公开(公告)号：US20240248242A1
公开(公告)日：2024-07-25
申请号：US18560172
申请日：2022-04-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Lin Zhao , Gilles J. Benoit
IPC: G02B5/28
CPC classification number: G02B5/287
Abstract: A multilayer optical film includes a plurality of polymeric layers transmitting at least 30% of a substantially normally incident light having a first wavelength and polarized along an in-plane first direction of the polymeric layers. Each of the polymeric layers has an average thickness of less than about 500 nm. First, second and third polymeric layers in the plurality of polymeric layers are disposed sequentially adjacent to each other and have respective indices of refraction n1, n2 and n3 along the first direction at the first wavelength and respective average thicknesses d1, d2 and d3. n2d2 can be within about 40% of m(n1d1+n3d3), where m is a positive integer.
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公开(公告)号：US20240230912A1
公开(公告)日：2024-07-11
申请号：US18558419
申请日：2022-05-05
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Raghunath Padiyath , Gilles J. Benoit , Michael D. Holden , Martin J. Sisolak , Travis L. Potts , Jincy Jose
IPC: G01S17/931 , B60J1/20 , G01S7/481 , G02B1/04 , G02B5/20
CPC classification number: G01S17/931 , B60J1/20 , G01S7/4813 , G02B1/04 , G02B5/208
Abstract: An optical sensing system includes an optical film and a transceiver configured to at least 5 one of emit and receive a first light toward an object through the optical film along a propagation direction making a first angle of greater than about 20 degrees in an air with a normal to the optical film. The first light has a first infrared wavelength in an infrared wavelength range extending from about 800 nm to about 2000 nm. For an incident light incident on the optical film in the air and having the first infrared wavelength and for at least one of mutually orthogonal first and second 10 polarization states, the optical film reflects at least 60% of the incident light at an incident angle of less than about 5 degrees, and transmits at least 40% of the incident light at an incident angle substantially equal to the first angle.
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公开(公告)号：US20240151586A1
公开(公告)日：2024-05-09
申请号：US18279264
申请日：2022-02-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Dawn V. Muyres , Jason W. Bjork , Mark August Roehrig , Gilles J. Benoit , Theresa J. Gerten , Zhaohui Yang , Audrey A. Sherman , Bharat R. Acharya , Edward J. Kivel
CPC classification number: G01J3/513 , G01J3/0264 , G01J3/0267 , G01J3/0275 , G01J3/10 , G01J3/4406 , G01J2003/468 , G01J2003/516
Abstract: An optical device for sensing a presence of an analyte in a person is provided. The optical device includes a light source, an optical stack, and a reader. The light source emits a first light having a first wavelength. The optical stack is placed on a skin of the person. The optical stack includes a sensor material and an optical filter. The sensor material emits a second light having a second wavelength when irradiated with the first light. An optical property of the second light is sensitive to the presence of the analyte. The optical filter is disposed on the sensor material and includes a plurality of microlayers numbering at least 10 in total. The optical filter has different first and second transmittances at the respective first and second wavelengths.
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公开(公告)号：US11966204B2
公开(公告)日：2024-04-23
申请号：US17438725
申请日：2019-09-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Gilles J. Benoit , Brian E. Brooks , Peter O. Olson , Tyler W. Olson , Himanshu Nayar , Frederick J. Arsenault , Nicholas A. Johnson
IPC: G05B13/04 , B60W40/064 , B60W40/08 , B60W40/105 , G05B13/02 , G05B19/4065 , G05B19/418 , G05B23/02 , G06F18/21 , G06N5/043 , G06N5/046 , G06N7/01 , G06Q10/0631 , G06Q10/0639 , G06Q10/087 , G06Q30/0202
CPC classification number: G05B13/042 , B60W40/064 , B60W40/08 , B60W40/105 , G05B13/021 , G05B13/024 , G05B13/0265 , G05B13/041 , G05B19/4065 , G05B19/41835 , G05B23/0229 , G05B23/0248 , G06F18/2193 , G06N5/043 , G06N5/046 , G06N7/01 , G06Q10/06315 , G06Q10/06395 , G06Q30/0202 , G05B2219/36301 , G06Q10/087
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining causal models for controlling environments. One of the methods includes repeatedly selecting, by a control system for the environment, control settings for the environment based on internal parameters of the control system, wherein: at least some of the control settings for the environment are selected based on a causal model, and the internal parameters include a first set of internal parameters that define a number of previously received performance metric values that are used to generate the causal model for a particular controllable element; obtaining, for each selected control setting, a performance metric value; determining that generating the causal model for the particular controllable element would result in higher system performance; and adjusting, based on the determining, the first set of internal parameters.
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公开(公告)号：US11960683B2
公开(公告)日：2024-04-16
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 , G02B5/0226 , 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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Patent Agency Ranking
公开(公告)号：US11927926B2
公开(公告)日：2024-03-12
申请号：US17437221
申请日：2019-09-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Brian E. Brooks , Gilles J. Benoit , Peter O. Olson , Tyler W. Olson , Himanshu Nayar , Frederick J. Arsenault , Nicholas A. Johnson
IPC: G05B13/04 , B60W40/064 , B60W40/08 , B60W40/105 , G05B13/02 , G05B19/4065 , G05B19/418 , G05B23/02 , G06F18/21 , G06N5/043 , G06N5/046 , G06N7/01 , G06Q10/0631 , G06Q10/0639 , G06Q30/0202 , G06Q10/087
CPC classification number: G05B13/042 , B60W40/064 , B60W40/08 , B60W40/105 , G05B13/021 , G05B13/024 , G05B13/0265 , G05B13/041 , G05B19/4065 , G05B19/41835 , G05B23/0229 , G06F18/2193 , G06N5/043 , G06N5/046 , G06N7/01 , G06Q10/06315 , G06Q10/06395 , G06Q30/0202 , G05B2219/36301 , G06Q10/087
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining causal models for controlling environments. One of the methods includes repeatedly selecting control settings for the environment based on (i) a causal model that identifies causal relationships between possible settings for controllable elements in the environment and environment responses that reflect a performance of the control system in controlling the environment and (ii) current values of a set of internal parameters; and during the repeatedly selecting: monitoring environment responses to the selected control settings; determining, based on the environment responses, an indication that one or more properties of the environment have changed; and in response, modifying the current values of one or more of the internal parameters.
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公开(公告)号：US20230273119A1
公开(公告)日：2023-08-31
申请号：US18111056
申请日：2023-02-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Bharat R. Acharya , Raj Rajagopal , Gregory W. Sitton , Benjamin G. Sonnek , Robert M. Biegler , Gilles J. Benoit , Timothy J. Lindquist , John A. Wheatley , Kristal L. Schutta , James A. Phipps
IPC: G01N21/31
CPC classification number: G01N21/314 , G01N2021/317 , G01N2201/0453
Abstract: An optical well is configured to receive a test sample for examining an optical characteristic of the sample at a first wavelength in a predetermined wavelength range. The optical well includes a wall having a bottom wall portion and a sidewall portion defining a chamber for receiving the test sample, and an optical film formed into a shape so that a portion of the sidewall portion includes a first portion of the optical film, and a portion of the bottom wall portion includes a second portion of the optical film. For a normally incident light, the microlayers in each of the first and second portions have an average optical reflectance of greater than about 80% in the predetermined wavelength range. The forming results in the plurality of microlayers of the integral formed optical film having a thinnest portion and a thickest portion having a thickness difference of at least 30%.
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公开(公告)号：US11726249B2
公开(公告)日：2023-08-15
申请号：US17873420
申请日：2022-07-26
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhisheng Yun , Michael L. Steiner , Jo A. Etter , Timothy L. Wong , Gilles J. Benoit , John D. Le , Erin A. McDowell , Susan L. Kent
CPC classification number: G02B5/3083 , G02B27/0172 , G02B2027/0118
Abstract: An optical element includes an optical surface configured to receive light at a predetermined wavelength in a range from about 400 nm to about 1000 nm. The optical surface is defined by a vertical axis and a horizontal axis defining four Cartesian quadrants sequentially numbered in a counter-clockwise direction. A first longitudinal section of the optical surface is centered on the vertical axis and a second longitudinal section of the optical surface is centered on the horizontal axis. The first and second longitudinal section each extend across opposite edges of the optical surface and have a same substantially uniform retardance for substantially normally incident light. The optical element includes four discrete retarder sections. Each retarder section is disposed on a respective Cartesian quadrant of the optical surface and has a retardance difference from the substantially uniform retardance of the optical surface that is greater than zero.
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公开(公告)号：US11720070B2
公开(公告)日：2023-08-08
申请号：US17438096
申请日：2019-09-11
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Brian E. Brooks , Gilles J. Benoit , Peter O. Olson , Tyler W. Olson , Himanshu Nayar , Frederick J. Arsenault , Nicholas A. Johnson
IPC: G05B13/04 , G05B13/02 , G06N5/043 , G05B23/02 , G06N5/046 , G05B19/4065 , G05B19/418 , G06Q10/0631 , G06Q10/0639 , G06Q30/0202 , B60W40/064 , B60W40/08 , B60W40/105 , G06F18/21 , G06N7/01 , G06Q10/087
CPC classification number: G05B13/042 , B60W40/064 , B60W40/08 , B60W40/105 , G05B13/021 , G05B13/024 , G05B13/0265 , G05B13/041 , G05B19/4065 , G05B19/41835 , G05B23/0229 , G06F18/2193 , G06N5/043 , G06N5/046 , G06N7/01 , G06Q10/06315 , G06Q10/06395 , G06Q30/0202 , G05B2219/36301 , G06Q10/087
Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for determining causal models for controlling environments. One of the methods includes obtaining data specifying baseline probability distributions for each of a plurality of controllable elements; maintaining a causal model; repeatedly performing the following: selecting control settings for the environment based on the causal model and values for a particular internal parameter of the control system that are sampled from a range of possible values; selecting control settings for the environment based on the baseline probability distributions; monitoring environment responses to the control settings selected based on the causal model and the control settings selected based on the baseline probability distributions; determining, for each of the possible values, a measure of a difference between a current system performance and a baseline system performance; and updating how frequently each of the possible values is sampled.
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20.发明授权公开(公告)号：US11550089B2
公开(公告)日：2023-01-10
申请号：US17305867
申请日：2021-07-16
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Timothy J. Nevitt , Carl A. Stover , Gilles J. Benoit , Kristopher J. Derks , Zhaohui Yang
Abstract: Multilayer optical film reflective polarizers previously considered to have excessive off-axis color can provide adequate performance in an LC display in an “on-glass” configuration, laminated to a back absorbing polarizer of the display, without any light diffusing layer or air gap in such laminate. The reflective polarizer is a tentered-one-packet (TOP) multilayer film, having only one packet of microlayers, and oriented using a standard tenter such that birefringent microlayers in the film are biaxially birefringent. The thickness profile of optical repeat units (ORUs) in the microlayer packet is tailored to avoid excessive perceived color at normal and oblique angles. Color at high oblique angles in the white state of the display is reduced by positioning thicker ORUs closer to the absorbing polarizer, and by ensuring that, with regard to a boxcar average of the ORU thickness profile, the average slope from an ORU(600) to an ORU(645) does not exceed 1.8 times the average slope from an ORU(450) to the ORU(600).
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