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    • 26. 发明申请
    • LIGHT GUIDE APPARATUS
    • 光指导装置
    • US20120113678A1
    • 2012-05-10
    • US13263892
    • 2010-04-16
    • Hugo Johan CornelissenDirk Kornelis Gerhardus BoerGongming Wei
    • Hugo Johan CornelissenDirk Kornelis Gerhardus BoerGongming Wei
    • F21V8/00G02B6/34
    • G02B6/0038G02B6/0025G02B6/0028G02B6/005G02B6/0063G02B6/0068G02B6/0076
    • The present invention aims to provide a light guide apparatus based on diffraction gratings. The apparatus comprises a light guide plate (11) comprising a first diffraction grating (13) located on a first surface of or inside the light guide plate (11); a first light source (12), coupled to a first side of the light guide plate (11); wherein the first diffraction grating (11) is configured to extract the light generated by the first light source (12) from the first surface of the light guide plate (11). Since the first diffraction grating (13) is invisibly small, users hardly notice any change of the light guide (11). When the light guide apparatus of the present invention is used as a book reader, the dark area produced when lifting the book reader in a direction away from the objects to be read is smaller than that of existing light guide apparatus based on microstructures, since the light exit angle is relatively small when using a diffraction grating.
    • 本发明的目的在于提供一种基于衍射光栅的导光装置。 该装置包括导光板(11),该导光板包括位于导光板(11)的内表面或内部的第一衍射光栅(13); 耦合到所述导光板(11)的第一侧的第一光源(12); 其中所述第一衍射光栅(11)被配置为从所述导光板(11)的所述第一表面提取由所述第一光源(12)产生的光。 由于第一衍射光栅(13)不可见,所以用户几乎不注意到光导(11)的任何变化。 当将本发明的导光装置用作书本阅读器时,在远离被读取物的方向提升书本阅读器时产生的暗区比现有的基于微结构的导光装置小,因为 当使用衍射光栅时,光出射角相对较小。
    • 29. 发明申请
    • BACKLIGHT SYSTEM
    • 背光系统
    • US20100315323A1
    • 2010-12-16
    • US12446261
    • 2007-10-17
    • Giovanni CenniniFetze PijlmanHugo Johan Cornelissen
    • Giovanni CenniniFetze PijlmanHugo Johan Cornelissen
    • G09G3/36
    • G02B6/0016G02B6/0018G02B6/0068G02F1/133603G09G3/3426G09G2320/0626G09G2360/145
    • An adaptively controllable backlight system (1), having a plurality of individually controllable light-sources (3a-d) arranged on a backlight panel (2) to emit light in a direction substantially normal to the backlight panel (2). The backlight system (1) further comprises an outcoupling plate (5) arranged adjacent to the backlight panel (2), and adapted to capture a fraction of the light emitted by the light-sources (3a-d) and to outcouple the fraction of light through at least one outcoupling-surface (8a-b) of the outcoupling plate (5), and at least one light-guide (9, 10) arranged to receive the outcoupled light and adapted to guide the outcoupled light towards at least one outcoupling-surface (14a-b, 15a-b) of the light-guide (9, 10). Additionally, at least one sensor (16-19) is arranged to receive the guided outcoupled light and adapted to provide a signal indicative of at least one property of the outcoupled light, thereby enabling adaptive control of the backlight system (1).
    • 一种自适应控制的背光系统(1),其具有布置在背光面板(2)上的多个可独立控制的光源(3a-d),以在基本垂直于背光面板(2)的方向上发光。 背光系统(1)还包括邻近背光板(2)布置的外耦合板(5),并适于捕获由光源(3a-d)发射的光的一部分,并将 通过外耦合板(5)的至少一个外耦合表面(8a-b)的光,以及布置成接收输出耦合的光并适于将输出耦合的光引向至少一个的至少一个光导(9,10) 导光体(9,10)的外耦合表面(14a-b,15a-b)。 另外,至少一个传感器(16-19)被布置成接收被引导的输出耦合的光并且适于提供指示输出光的至少一个特性的信号,从而实现背光系统(1)的自适应控制。