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    LIGHT SOURCE INCORPORATING MULTILAYER OPTICAL FILM
    32.
    发明申请
    LIGHT SOURCE INCORPORATING MULTILAYER OPTICAL FILM 审中-公开
    光源包含多层光学膜

    公开(公告)号：US20160370534A1

    公开(公告)日：2016-12-22

    申请号：US15117256

    申请日：2015-02-26

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： Tao Liu ,  William W. Merrill ,  Mark E. Napierala ,  David T. Yust

    IPC: F21V8/00 ,  F21S8/10 ,  G02B5/28 ,  G02B5/30 ,  G02B5/13 ,  G02B5/124

    CPC classification number: G02B6/0053 ,  F21S43/239 ,  F21S43/245 ,  G02B1/08 ,  G02B5/124 ,  G02B5/13 ,  G02B5/28 ,  G02B5/3083 ,  G02B6/0001 ,  G02B6/0031 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/0056 ,  G02B6/006 ,  G02B6/0068

    Abstract: A light source includes a lightguide having a top side comprising an optical film, a bottom side comprising a diffuse reflector, and an input side extending between the top and bottom sides. An illumination source is disposed proximate the input side of the lightguide. The optical film has adjacent first and second zones, each zone extending substantially an entire thickness of the optical stack or an entire thickness of at least one optical packet of the optical film. Light enters the lightguide from the light source propagating within the lightguide and being either reflected or transmitted by the optical film primarily by optical interference. For at least one first incidence angle and at least one wavelength, the first and second zones of the optical film have substantially equal optical transmittance. For at least one second incidence angle and at least one wavelength, the second zone has substantially greater optical transmittance than the first zone of the optical film.

    Abstract translation: 光源包括具有包括光学膜的顶侧的光导，包括漫反射器的底侧和在顶侧和底侧之间延伸的输入侧。 照明源设置在光导的输入侧附近。 光学薄膜具有相邻的第一和第二区域，每个区域基本上延伸光学叠层的整个厚度或光学薄膜的至少一个光学分组的整个厚度。 光从光源中传播的光源进入光导，并且主要通过光学干涉被光学膜反射或透射。 对于至少一个第一入射角和至少一个波长，光学膜的第一和第二区具有基本相等的光透射率。 对于至少一个第二入射角和至少一个波长，第二区具有比光学膜的第一区大得多的光透射率。

    Optical systems
    34.
    发明授权
    Optical systems 有权

    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

    IPC: G02B5/30 ,  G02B1/04

    CPC classification number: G02B5/305 ,  G02B1/041

    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.

    EFFECTIVE MEDIA RETARDER FILMS WITH SPATIALLY SELECTIVE BIREFRINGENCE REDUCTION
    40.
    发明申请
    EFFECTIVE MEDIA RETARDER FILMS WITH SPATIALLY SELECTIVE BIREFRINGENCE REDUCTION 有权
    有效的介质延迟膜与空间选择性减少

    公开(公告)号：US20150277013A1

    公开(公告)日：2015-10-01

    申请号：US14735758

    申请日：2015-06-10

    Applicant: 3M INNOVATIVE PROPERTIES COMPANY

    Inventor： William W. Merrill ,  Douglas Scott Dunn ,  David T. Yust

    IPC: G02B5/30

    CPC classification number: G02B5/3083 ,  B29D11/00644 ,  B29D11/0073 ,  B42D25/29 ,  B42D25/351 ,  B42D25/45 ,  G02B5/32 ,  G02F1/13363 ,  G02F2413/09

    Abstract: A retarder film provides a first light retardation and can be heat processed in one or more selected areas to provide a second light retardation in the selected area(s). The retarder film may have an absorption characteristic such that the heat processing can be carried out by selectively exposing the film to a suitable radiant beam. The retarder film is composed of a stack of contiguous ultrathin layers configured to provide an effective optical medium for visible light. Visible light propagates through the stack as an effective medium having effective refractive indices along principal x-, y-, and z-axes. At least some of the ultrathin layers possess intrinsic birefringence, and the effective indices of the stack are functions of the intrinsic refractive indices of the constituent ultrathin layers. The heat processing is carried out so that the ultrathin layer stack structural integrity is not substantially altered in the processed area(s).

    Abstract translation: 延迟膜提供第一光延迟并且可以在一个或多个选定区域中进行热处理以在所选择的区域中提供第二光延迟。 延迟膜可以具有吸收特性，使得可以通过将膜选择性地暴露于合适的辐射束来进行热处理。 延迟膜由连续的超薄层的叠层组成，其被配置为提供可见光的有效光学介质。 可见光通过堆叠传播，作为沿着主要x轴，y轴和z轴具有有效折射率的有效介质。 至少一些超薄层具有固有的双折射，并且叠层的有效折射率是组成超薄层的固有折射率的函数。 进行热处理，使得超薄层堆叠结构完整性在经处理的区域中基本上不改变。

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