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    A THERMOPLASTIC OPTICAL DEVICE
    83.
    发明公开
    A THERMOPLASTIC OPTICAL DEVICE 审中-公开
    一种热塑性光学装置

    公开(公告)号：EP3255479A1

    公开(公告)日：2017-12-13

    申请号：EP16173913.1

    申请日：2016-06-10

    Applicant: IMEC VZW ,  Universiteit Gent ,  Marchal, Paul

    Inventor： De Smet, Jelle ,  Marchal, Paul ,  Shang, Xiaobing

    IPC: G02C7/08 ,  B29D11/00

    CPC classification number: G02F1/29 ,  A61F2/1627 ,  B29D11/00817 ,  G02B27/4205 ,  G02C7/083 ,  G02C2202/20 ,  G02F2001/294 ,  G02F2201/305

    Abstract: An optical device (1), comprising a first optical transparent thermoplastic layer (2), a second optical transparent thermoplastic layer (3), and in between both thermoplastic layers (2,3), a diffractive optical element (4) adjacent to one thermoplastic layer (2), a spacer (5) in between the diffractive optical element (4) and the other thermoplastic layer (3) and, a border (6) enclosing the diffractive element (4) thereby forming a sealed cavity (7).

    Abstract translation: 1。一种光学装置（1），包括第一光学透明热塑性层（2），第二光学透明热塑性层（3）以及两热塑性层（2,3）之间的衍射光学元件（4），所述衍射光学元件 （2），位于衍射光学元件（4）与另一热塑性层（3）之间的间隔物（5）以及包围衍射元件（4）的边界（6），从而形成密封腔（7） 。

    DIFFRACTION GRATING-BASED BACKLIGHTING HAVING CONTROLLED DIFFRACTIVE COUPLING EFFICIENCY
    84.
    发明公开
    DIFFRACTION GRATING-BASED BACKLIGHTING HAVING CONTROLLED DIFFRACTIVE COUPLING EFFICIENCY 审中-公开
    基于衍射光栅的背光控制衍射耦合效率

    公开(公告)号：EP3243093A1

    公开(公告)日：2017-11-15

    申请号：EP15877265.7

    申请日：2015-01-10

    Applicant: LEIA Inc.

    Inventor： FATTAL, David A.

    IPC: G02B6/124 ,  G02F1/13357

    CPC classification number: G02B6/005 ,  G02B6/0036 ,  G02B6/124 ,  G02B27/2214 ,  G02F1/292 ,  G02F2201/305

    Abstract: Diffraction grating-based backlighting having controlled diffractive coupling efficiency includes a light guide and a plurality of diffraction gratings at a surface of the light guide. The light guide is to guide light and the diffraction gratings are to couple out a portion of the guided light using diffractive coupling and to direct the coupled-out portion away from the light guide surface as a plurality of light beams at a principal angular direction. Diffraction gratings of the plurality include diffractive features having a diffractive feature modulation configured to selectively control a diffractive coupling efficiency of the diffraction gratings as a function of distance along the light guide surface.

    MULTI-COLORED PIXELATED DISPLAY WITH SPARKLE REDUCTION SURFACE
    85.
    发明公开
    MULTI-COLORED PIXELATED DISPLAY WITH SPARKLE REDUCTION SURFACE 审中-公开
    多色像素化显示器具有减少的火花中表面

    公开(公告)号：EP2780904A4

    公开(公告)日：2015-12-23

    申请号：EP12849087

    申请日：2012-11-06

    Applicant: CORNING INC

    Inventor： GOLLIER JACQUES

    IPC: G02F1/1335

    CPC classification number: G02F1/133504 ,  G02B5/0215 ,  G02B5/1842 ,  G02F1/133502 ,  G02F2001/133562 ,  G02F2201/305

    Abstract: Multi-colored pixelated displays are provided where a sparkle reduction surface comprising a micron grade diffraction element is positioned between the image display element and the display surface. More specifically, in accordance with one embodiment of the present disclosure, a multi-colored pixelated display is provided comprising an image display element and a transparent display cover. The image display element comprises an array of display pixels divided into a plurality of display sub-pixels associated with respective dedicated display color components. The transparent display cover comprises a display surface that is susceptible to marking and a sparkle reduction surface. The sparkle reduction surface is positioned between the image display element and the display surface along an optical path of the pixelated display and is spaced from the image display element by an optical distance D. The sparkle reduction surface comprises a micron grade diffraction element.

    EINRICHTUNG ZUR FREQUENZUMWANDLUNG EINES MIT EINER ERSTEN FREQUENZ VON EINER LASERSTRAHLQUELLE ERZEUGTEN LASERSTRAHLS
    86.
    发明公开
    EINRICHTUNG ZUR FREQUENZUMWANDLUNG EINES MIT EINER ERSTEN FREQUENZ VON EINER LASERSTRAHLQUELLE ERZEUGTEN LASERSTRAHLS 有权
    设备技术的第一个与生产的激光束的激光束源的频率变频

    公开(公告)号：EP2936245A1

    公开(公告)日：2015-10-28

    申请号：EP13801501.1

    申请日：2013-11-26

    Applicant: Rofin Sinar Laser GmbH

    Inventor： LEHMANN, Uwe ,  REISER, Axel

    IPC: G02F1/35

    CPC classification number: G02F1/3544 ,  G02F1/3501 ,  G02F1/3534 ,  G02F2001/3503 ,  G02F2001/3507 ,  G02F2001/3509 ,  G02F2001/354 ,  G02F2201/305 ,  H01S3/0071 ,  H01S3/0092

    Abstract: A device for frequency conversion of a first laser beam (6) generated with a first frequency (ω
    1 ) by a laser beam source (4) comprises: a) an optically non-linear first crystal (2) for generating a second laser beam (8) having a second frequency (ω
    2 ), which differs from the first frequency (ω
    1 ), said second laser beam propagating parallel to the first laser beam (6) after leaving the first optically non-linear crystal (2), b) an optically non-linear second crystal (10), which generates from the first and second laser beams (6, 8) at least one third laser beam (18) having a third frequency (ω
    3 ), which differs from the first frequency (ω
    1 ) and the second frequency (ω
    2 ), c) an optical deflection device (12) for influencing the relative beam position between first and second laser beams (6, 8) in such a way that d) first and second laser beams (6, 8), before entering into the second crystal (10), propagate at an angle (a) with respect to one another, which angle differs from zero, and e) enter in a manner spaced apart from one another at an entrance surface (16) of the second crystal (10) and intersect within the second crystal (10) with at the same time collinear phase matching, wherein f) the entrance surface (16) of the second crystal (10) is inclined at a wedge angle (γ) which differs from 0° with respect to two mutually parallel, mutually opposite side surfaces (17) of the second crystal (10).

    POLARIZATION-INDEPENDENT LIQUID CRYSTAL DISPLAY DEVICES INCLUDING MULTIPLE POLARIZATION GRATING ARRANGEMENTS AND RELATED DEVICES
    88.
    发明授权
    POLARIZATION-INDEPENDENT LIQUID CRYSTAL DISPLAY DEVICES INCLUDING MULTIPLE POLARIZATION GRATING ARRANGEMENTS AND RELATED DEVICES 有权
    与多极化GRID安排及相关配套设施偏振无关液晶显示器件

    公开(公告)号：EP2350736B1

    公开(公告)日：2013-03-20

    申请号：EP08876353.7

    申请日：2008-10-09

    Applicant: North Carolina State University

    Inventor： ESCUTI, Michael J. ,  OH, Chulwoo ,  KOMANDURI, Ravi ,  CONOVER, Brandon L. ,  KIM, Jihwan

    IPC: G02F1/1335 ,  G02F1/139

    CPC classification number: G02F1/133528 ,  G02F1/1393 ,  G02F2201/305

    Abstract: A liquid crystal device includes a first polarization grating, a second polarization grating, and a liquid crystal layer. The first polarization grating is configured to polarize and diffract incident light into first and second beams having different polarizations and different directions of propagation relative to that of the incident light. The liquid crystal layer is configured to receive the first and second beams from the first polarization grating. The liquid crystal layer is configured to be switched between a first state that does not substantially affect respective polarizations of the first and second beams traveling therethrough, and a second state that alters the respective polarizations of the first and second beams traveling therethrough. The second polarization grating is configured to analyze and diffract the first and second beams from the liquid crystal layer to alter the different directions of propagation thereof in response to the state of the liquid crystal layer. Related devices are also discussed.

    FLÜSSIGKRISTALLANZEIGE ELEMENT
    89.
    发明公开
    FLÜSSIGKRISTALLANZEIGE ELEMENT 审中-公开
    液晶显示元件

    公开(公告)号：EP1865370A1

    公开(公告)日：2007-12-12

    申请号：EP05822307.4

    申请日：2005-11-23

    Applicant: Tzvetkov, Valentin Alekseyevich ,  Tzvetkov, Oleg Valentinovich

    Inventor： Tzvetkov, Valentin Alekseyevich ,  Tzvetkov, Oleg Valentinovich

    IPC: G02F1/135

    CPC classification number: G02F1/133788 ,  G02F1/133526 ,  G02F1/133711 ,  G02F1/133753 ,  G02F1/292 ,  G02F2001/133757 ,  G02F2201/305 ,  G02F2203/12 ,  G02F2203/24 ,  G02F2203/34

    Abstract: Die Erfindung bezieht sich auf ein Element eines Flüssigkristall-Displays mit einer Eingangsmaske mit Spalten, einem Raster-Linsenkondensator sowie einer zwischen zwei transparenten Trägern eingebetteten Schicht des Flüssigkristalls. Die Träger sind mit transparenten Elektroden und Orientierungsschichten versehen, einem Raster-Linsenobjektiv, einer Ausgangsmaske mit Spalten, deren Lage mit der Lage der Spalten der Eingangsmaske abgestimmt ist. Die Fläche des Elements ist in drei Teilbereiche derart aufgeteilt, dass eine Phasen-Beugungsstruktur in der Schicht des Flüssigkristalls möglich ist. Die Orientierungsschichten sind dadurch gekennzeichnet, dass sie aus einem Fotopolymer bestehen und dass die Phasen-Beugungsstruktur durch die Bereiche des Flüssigkristalls mit unterschiedlicher Ausgangsorientierung gebildet ist, die durch eine unterschiedliche Richtung der Polarisationsebene bei der Belichtung des Fotopolymers bedingt ist. Die Periode der Bereiche mit verschiedener Orientierung ist in jedem der Teilbereiche gleich und die gegenseitige Spaltenlage der Ausgangsmaske ist bezüglich der Spalten der Eingangsmaske innerhalb jedes Teilbereichs unterschiedlich, wobei der Durchlass einer in jedem Teilbereich unterschiedlichen Farbe von drei primären Farben innerhalb jedes Teilbereichs gewährleistet ist.

    Abstract translation: 本发明涉及一种带有间隙的输入掩模，扫描透镜之间的液晶的两块透明的载体层的嵌入式电容器的液晶显示器的元件。 的载流子被提供有透明电极和对准层，扫描透镜物镜，源极掩模，其位置与所述输入掩模的列的位置对齐的列。 该元件的表面被划分成三个部分，使得一个相衍射结构可以在液晶层中。 的取向层的特征在于，它们由光聚合物，并且该相位衍射结构是通过用不同的初始取向，这是由偏振面在光聚合物的曝光不同的方向引起的液晶的区域形成。 具有不同取向的区域的周期在每个局部区域，并且相对于不同的每个子区域内的输入掩模的列中的源极掩模的相互列位置，其中，在三个基色的每个部分区域的颜色不同的通道被每个子区域内保证的相同。

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