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公开(公告)号：US20240122043A1
公开(公告)日：2024-04-11
申请号：US17768421
申请日：2020-10-29
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Gary T. Boyd , Daniel J. Schmidt , Caleb T. Nelson , Owen M. Anderson , Tri D. Pham , Encai Hao , Shu-Ching Fan
CPC classification number: H10K59/879 , G02B3/08
Abstract: An optical system includes a light source, an optical film curved about a first axis, and a light control film curved about the first axis and disposed between the light source and the optical film. The optical film includes a microstructured first major surface and an opposing second major surface. The microstructured first major surface defines a linear Fresnel lens including a plurality of Fresnel elements extending longitudinally along the first axis. The first major surface of the optical film faces of the optically transmissive regions, a centerline between adjacent optically absorptive regions is substantially normal to a major surface of the light control film.
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公开(公告)号：US20230393312A1
公开(公告)日：2023-12-07
申请号：US18246419
申请日：2021-10-18
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Raymond J. Kenney , Tao Liu , Kevin W. Gotrik , Caleb T. Nelson , Nicholas A. Johnson , Daniel J. Schmidt
IPC: G02B5/00 , G02F1/1335
CPC classification number: G02B5/003 , G02F1/133524 , G02B2207/123
Abstract: A light control film comprising a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein each absorptive region has an aspect ratio of at least 30, and wherein each transmissive region has a first refractive index; and a plurality of low index layers, wherein each low index layer is disposed between each transmissive region and an adjacent absorptive region, and wherein each low index layer has a second refractive index less than the first refractive index of each transmissive region.
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公开(公告)号：US11287559B2
公开(公告)日：2022-03-29
申请号：US17159371
申请日：2021-01-27
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Yongshang Lu , David C. Mercord , Brian W. Ostlie
IPC: F21V8/00
Abstract: A unitary lightguide including a first lightguide section extending along a first direction and a second lightguide section extending along a second direction is described. The second lightguide section includes a plurality of light extractors for extracting light that would otherwise propagate within and along the second lightguide section. The unitary lightguide includes a boundary region disposed between and joining the first and second lightguide sections and including a plurality of spaced apart light redirecting features. Each light redirecting feature includes a first portion extending substantially parallel to the first direction, and a second portion extending from proximate the first end of the first portion toward the second lightguide section and making an angle with the first portion in a range from about 10 degrees to about 70 degrees.
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公开(公告)号：US11209589B2
公开(公告)日：2021-12-28
申请号：US16466054
申请日：2017-11-28
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Brent A. Hedding , David C. Mercord , Brian W. Ostlie
Abstract: An optical imaging system (100) including an elongated lightguide (105) having pluralities of first and second light extractors (110) forming respective first and second patterns along the length of the lightguide is described. Light extracted by the first light extractors exit the lightguide primarily along a first direction toward a target location (150), and light extracted by the second light extractors exit the lightguide primarily along a second direction different from the first direction. The optical imaging system includes a first reflector (114) for receiving light exiting the lightguide primarily along the second direction and reflecting the received light toward the target location. The first reflector forms a first virtual image (132) of the second pattern behind the first reflector. The first pattern and the first virtual image are visible to a viewer (152) viewing the optical imaging system from the target location.
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公开(公告)号：US20210157044A1
公开(公告)日：2021-05-27
申请号：US16629595
申请日：2018-07-30
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Yongshang Lu , David C. Mercord , Brian W. Ostlie
IPC: F21V8/00
Abstract: An optical system includes a lightguide having opposing top and bottom major surfaces. A round through opening extends between the two surfaces of the lightguide. An elongated channel is formed in one of the surfaces and at least partially surrounds and is substantially concentric with the opening. The channel has a depth (d) that varies along its length. Light extractors extract light that would otherwise propagate within and along the lightguide. The features of the lightguide can be varied to optimize performance of the lightguide for various purposes.
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Patent Agency Ranking
公开(公告)号：US20180231708A1
公开(公告)日：2018-08-16
申请号：US15751213
申请日：2016-08-25
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Tao Liu , Brent A. Hedding , David C. Mercord , Brian W. Ostlie , David A. Ender
IPC: F21V8/00
CPC classification number: G02B6/0036 , G02B6/006 , G02B6/0065 , G02B6/0068
Abstract: Lightguides including pixelated images, and methods of making the lightguides are provided. The lightguides include an image formed on a major side which is illuminated for directly viewing. The image includes an elongated portion being pixelated into an array of pixels. Each of the pixels includes a single light extracting structure adapted to receive the propagating light within the lightguide along the optical axis and extract the received light transversely out of the lightguide.
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公开(公告)号：US20180120581A1
公开(公告)日：2018-05-03
申请号：US15341171
申请日：2016-11-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew J. Ouderkirk , Michael J. Sykora , Robert R. Kieschke , Kenneth L. Smith , Olester Benson, JR. , Gary E. Gaides , Tao Liu , Thomas J. Blong , Gary T. Boyd
IPC: G02B27/30 , G02B5/00 , G02B27/02 , G02B3/00 , G02B19/00 , H01L31/0232 , H01L31/0224
Abstract: A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.
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公开(公告)号：US20180120580A1
公开(公告)日：2018-05-03
申请号：US15341089
申请日：2016-11-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew J. Ouderkirk , Michael J. Sykora , Robert R. Kieschke , Kenneth L. Smith , Olester Benson, JR. , Gary E. Gaides , Tao Liu , Thomas J. Blong , Gary T. Boyd
IPC: G02B27/30 , G02B5/00 , G02B27/02 , H01L31/054
CPC classification number: G02B27/30 , G02B3/0037 , G02B5/003 , G02B5/0257 , G02B5/0263 , G02B5/0278 , G02B19/0014 , G02B19/0042 , G02B27/022 , H01L31/022425 , H01L31/02327 , H01L31/054 , H01L31/0543 , Y02E10/52
Abstract: A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.
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公开(公告)号：US09791709B1
公开(公告)日：2017-10-17
申请号：US15644962
申请日：2017-07-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew J. Ouderkirk , Michael J. Sykora , Robert R. Kieschke , Kenneth L. Smith , Olester Benson, Jr. , Gary E. Gaides , Tao Liu , Thomas J. Blong , Gary T. Boyd
IPC: G02B27/30 , H02N6/00 , H01L31/042 , H01L31/054 , G02B27/02 , G02B5/00
CPC classification number: G02B27/30 , G02B3/0037 , G02B5/003 , G02B5/0257 , G02B5/0263 , G02B5/0278 , G02B19/0014 , G02B19/0042 , G02B27/022 , H01L31/022425 , H01L31/02327 , H01L31/054 , H01L31/0543 , Y02E10/50
Abstract: A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.
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公开(公告)号：US09740018B1
公开(公告)日：2017-08-22
申请号：US15341159
申请日：2016-11-02
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： Andrew J. Ouderkirk , Michael J. Sykora , Robert R. Kieschke , Kenneth L. Smith , Olester Benson, Jr. , Gary E. Gaides , Tao Liu , Thomas J. Blong , Gary T. Boyd
IPC: G02B27/30 , H02N6/00 , H01L31/042 , G02B27/02 , G02B5/00 , H01L31/054
CPC classification number: G02B27/30 , G02B1/04 , G02B5/003 , G02B27/022 , G02B2207/123 , H01L31/02168 , H01L31/054 , H01L31/0543 , Y02E10/52
Abstract: A light control film includes a plurality of spaced apart substantially parallel first light absorbing regions arranged along a first direction, each first light absorbing region having a width and a height, the plurality of first light absorbing regions including nonoverlapping first and second sub-pluralities of the plurality of first light absorbing regions, the first sub-plurality of the plurality of first light absorbing regions having a first viewing angle, the second sub-plurality of the plurality of first light absorbing regions having a different second viewing angle.
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