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    PROJECTION SUBSYSTEM
    41.
    发明公开
    PROJECTION SUBSYSTEM 审中-公开
    PROJEKTIONSSUBSYSTEM

    公开(公告)号：EP2745166A2

    公开(公告)日：2014-06-25

    申请号：EP12751225.9

    申请日：2012-08-14

    Applicant: 3M Innovative Properties Company

    Inventor： WILLETT, Stephen J. ,  SCHARDT, Craig R. ,  AASTUEN, David J.W.

    IPC: G02B27/28 ,  H04N9/31

    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。

    MULTIBAND RESONANT GRATINGS
    44.
    发明公开
    MULTIBAND RESONANT GRATINGS 审中-公开

    公开(公告)号：EP4206789A1

    公开(公告)日：2023-07-05

    申请号：EP22213685.5

    申请日：2022-12-15

    Applicant: 3M Innovative Properties Company

    Inventor： MARKOWITZ, Matthew ,  COTRUFO, Michele ,  ALU, Andrea ,  HAO, Bing ,  SCHARDT, Craig R. ,  GUO, Xuexue ,  STENSVAD, Karl K.

    IPC: G02B27/01 ,  G02B5/26 ,  G02B5/28 ,  G02B27/10 ,  G02B5/18 ,  G02B5/20

    Abstract: An optical combiner includes a first layer with a periodic arrangement of structures of a material with a first refractive index. A second layer overlies the structures on the first layer, and the second layer includes a material with a second refractive index. A difference between the first refractive index and the second refractive index, measured at 587.5 nm, is less than 1.5. The periodic arrangement of structures is configured such that the optical combiner produces, for an input signal incident on the first layer from air at an oblique elevation angle of greater than 20°, an output signal with three reflection peaks, each reflection peak having an average reflection of greater than 50% within a ± 3° range of the elevation angle.

    PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A PLURALITY OF LIGHT GUIDES AND A DISPLAY USING SAME
    47.
    发明公开
    PHOSPHOR BASED ILLUMINATION SYSTEM HAVING A PLURALITY OF LIGHT GUIDES AND A DISPLAY USING SAME 审中-公开
    基于荧光体的照明系统具有多个光导和显示器使用相同

    公开(公告)号：EP1761807A1

    公开(公告)日：2007-03-14

    申请号：EP05757270.3

    申请日：2005-06-07

    Applicant: 3M Innovative Properties Company

    Inventor： OUDERKIRK, Andrew J. ,  WHEATLEY, John A. ,  WEBER, Michael F. ,  EPSTEIN, Kenneth A. ,  SCHARDT, Craig R. ,  WATSON, James E. ,  SCHULTZ, John C.

    IPC: G02B6/00 ,  G02F1/13357

    CPC classification number: G02B6/0068 ,  G02B6/0008 ,  G02B6/0026 ,  G02B6/0028 ,  G02B6/0066 ,  G02F1/133617

    Abstract: An illumination system including a light source, light guides coupled to the light source, each including an input surface and an output surface, emissive material positioned to receive light from at least one light guide, and an interference reflector positioned such that the emissive material is between the output surfaces of the light guides and the interference reflector is disclosed. The light source emits light having a first optical characteristic. The emissive material emits light having a second optical characteristic when illuminated with light having the first optical characteristic. The interference reflector substantially transmits light having the second optical characteristic and substantially reflects light having the first optical characteristic.

    Abstract translation: 一种照明系统，包括光源，耦合到光源的光导，每个光导包括输入表面和输出表面，定位成接收来自至少一个光导的光的发射材料，以及定位成使得发射材料是 公开了在光导的输出表面和干涉反射器之间。 光源发射具有第一光学特性的光。 当用具有第一光学特性的光照射时，发射材料发射具有第二光学特性的光。 干涉反射器基本上透射具有第二光学特性的光并且基本上反射具有第一光学特性的光。

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