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公开(公告)号：US09952443B2
公开(公告)日：2018-04-24
申请号：US15346774
申请日：2016-11-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Willett , Craig R. Schardt , David J. W. Aastuen
CPC classification number: G02B27/283 , G02B5/3025 , G02B13/16 , G03B21/20 , H04N9/3167
Abstract: Projection subsystems are described. More, particularly, projection subsystems that include a light source and a polarizing beam splitter are described. The polarizing beam splitters of the presently described projection subsystems are capable of avoiding performance degradation even after exposure to large doses of incident light.
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公开(公告)号：US20170276647A1
公开(公告)日：2017-09-28
申请号：US15504244
申请日：2015-08-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Orlin B. Knudson , Jia Hu , Chaodi Li , Richard L. Rylander , Cheryl Lee Senger Elsbernd , Stephen J. Willett , Andrew P. Bonifas
CPC classification number: G01N29/2412 , A61L2/28 , G01K3/04 , G01K7/32 , G01K7/36 , G01K11/06 , G01N27/026 , G01N29/036 , G01N2291/0256 , G01N2291/02863
Abstract: Some aspects of the present disclosure feature a sensing device (e.g. for temperature, moisture or detection of substances) comprising a magnetic bias layer, a resonator, a spacer, and an environmental change receptor. The spacer is disposed between the magnetic bias layer and the resonator. At least one of the resonator surfaces has a predefined channel. The environmental change receptor is disposed proximate to the predefined channel. In response to a change in environment, the environmental change receptor distributes along a part of the channel.
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公开(公告)号：US20170052383A1
公开(公告)日：2017-02-23
申请号：US15346774
申请日：2016-11-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Willett , Craig R. Schardt , David J.W. Aastuen
CPC classification number: G02B27/283 , G02B5/3025 , G02B13/16 , G03B21/20 , H04N9/3167
Abstract: Projection subsystems are described. More, particularly, projection subsystems that include a light source and a polarizing beam splitter are described. The polarizing beam splitters of the presently described projection subsystems are capable of avoiding performance degradation even after exposure to large doses of incident light.
Abstract translation: 描述投影子系统。 更具体地，描述了包括光源和偏振分束器的投影子系统。 目前描述的投影子系统的偏振分束器即使在暴露于大量入射光之后也能够避免性能下降。
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公开(公告)号：US20220057632A1
公开(公告)日：2022-02-24
申请号：US17414653
申请日：2019-12-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhisheng Yun , Hao Wu , Stephen J. Willett , Craig R. Schardt , Stephan J. Pankratz , Gilles J. Benoit
IPC: G02B27/01 , G02B27/28 , G02F1/1335
Abstract: An optical system, including a reflective polarizer, and a display and a mirror disposed on a same side of, and generally facing, the reflective polarizer. The reflective polarizer may transmit at least 80% of incident light having a first polarization state and may reflect at least 80% of incident light having a second polarization state, and the mirror may reflect at least 80% of the incident light for each of the first and second polarization states. The central locations of the display, reflective polarizer, and mirror may define a midplane which includes first, second, and third regions, such that the first region includes portions of the image rays that pass at least once across the region, the second region includes portions of the image rays that pass at least twice across the region, and the third region includes portions of the image rays that pass three times across the region. The first, second, and third regions may have respective areas A1, A2, and A3, such that A3/A2 is greater than or equal to about 0.20, or 0.22, or 0.24, or 0.26, or 0.28, or 0.30.
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公开(公告)号：US10823717B2
公开(公告)日：2020-11-03
申请号：US15693725
申请日：2017-09-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Willett , Ronald D. Jesme , Mohsen Salehi , Andrew P. Bonifas , Erik A. Aho , Craig R. Schardt , Amy J. Hite , Patrick M. Campbell
Abstract: A system for use in wirelessly monitoring a pipeline such as a natural gas pipe. The system includes a locator configured to wirelessly transmit power and a subsoil sensor marker located adjacent the pipe and configured to wirelessly communicate with the locator. The sensor marker includes a microcontroller, a memory module, a sensor configured to sense the presence of a gas, and a power module. The power module is configured to harvest a sufficient amount of the power wirelessly transmitted from the locator in order to operate the microcontroller to take a measurement via the sensor, save the measurement in the memory module, and wirelessly transmit the measurement to the locator.
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Patent Agency Ranking
公开(公告)号：US20190072532A1
公开(公告)日：2019-03-07
申请号：US15693725
申请日：2017-09-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Stephen J. Willett , Ronald D. Jesme , Mohsen Salehi , Andrew P. Bonifas , Erik A. Aho , Craig R. Schardt , Amy J. Hite , Patrick M. Campbell
Abstract: A system for use in wirelessly monitoring a pipeline such as a natural gas pipe. The system includes a locator configured to wirelessly transmit power and a subsoil sensor marker located adjacent the pipe and configured to wirelessly communicate with the locator. The sensor marker includes a microcontroller, a memory module, a sensor configured to sense the presence of a gas, and a power module. The power module is configured to harvest a sufficient amount of the power wirelessly transmitted from the locator in order to operate the microcontroller to take a measurement via the sensor, save the measurement in the memory module, and wirelessly transmit the measurement to the locator.
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公开(公告)号：US10139645B2
公开(公告)日：2018-11-27
申请号：US15664136
申请日：2017-07-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Yarn Chee Poon , Andrew J. Ouderkirk , Philip E. Watson , Xiaohui Cheng , Kim Leong Tan , Stephen J. Willett
Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
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公开(公告)号：US20140253849A1
公开(公告)日：2014-09-11
申请号：US14352702
申请日：2012-10-23
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Yarn Chee Poon , Andrew J. Ouderkirk , Philip E. Watson , Xiaohui Cheng , Kim Leong Tan , Stephen J. Willett
IPC: G02B27/28 , G03B21/20 , G02F1/1335
CPC classification number: G02B27/283 , G02B27/102 , G02B27/145 , G02F1/133533 , G02F2001/13355 , G03B21/2033 , G03B21/2073 , G03B33/06 , H04N9/3108 , H04N9/3167
Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
Abstract translation: 本公开一般涉及可用于彩色组合器的分束器，并且特别地涉及可用于小尺寸格式投影仪（例如袖珍投影仪）中的分色器。 所公开的分束器和组合器包括倾斜的二向色反射偏振器板，其具有相对于入射光束以不同角度倾斜的至少两个二向色反射偏振器，具有光收集光学器件以组合至少两种颜色的光。
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公开(公告)号：US12025797B2
公开(公告)日：2024-07-02
申请号：US17414653
申请日：2019-12-17
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Zhisheng Yun , Hao Wu , Stephen J. Willett , Craig R. Schardt , Stephan J. Pankratz , Gilles J. Benoit
IPC: G02B27/01 , G02B27/28 , G02F1/1335
CPC classification number: G02B27/0101 , G02B27/0149 , G02B27/286 , G02F1/133536 , G02B2027/015
Abstract: An optical system, including a reflective polarizer, and a display and a mirror disposed on a same side of, and generally facing, the reflective polarizer. The reflective polarizer may transmit at least 80% of incident light having a first polarization state and may reflect at least 80% of incident light having a second polarization state, and the mirror may reflect at least 80% of the incident light for each of the first and second polarization states. The central locations of the display, reflective polarizer, and mirror may define a midplane which includes first, second, and third regions, such that the first region includes portions of the image rays that pass at least once across the region, the second region includes portions of the image rays that pass at least twice across the region, and the third region includes portions of the image rays that pass three times across the region. The first, second, and third regions may have respective areas A1, A2, and A3, such that A3/A2 is greater than or equal to about 0.20, or 0.22, or 0.24, or 0.26, or 0.28, or 0.30.
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公开(公告)号：US20170351109A1
公开(公告)日：2017-12-07
申请号：US15664136
申请日：2017-07-31
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Yarn Chee Poon , Andrew J. Ouderkirk , Philip E. Watson , Xiaohui Cheng , Kim Leong Tan , Stephen J. Willett
CPC classification number: G02B27/283 , G02B27/102 , G02B27/145 , G02F1/133533 , G02F2001/13355 , G03B21/2033 , G03B21/2073 , G03B33/06 , H04N9/3108 , H04N9/3167
Abstract: The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light.
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