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    • 5. 发明授权
    • Illuminating apparatus and display apparatus
    • 照明装置和显示装置
    • US08016450B2
    • 2011-09-13
    • US12539342
    • 2009-08-11
    • Shogo ShinkaiShigehiro YamakitaYasuyuki KudoTaku IshimoriEiji OhtaYutaka Muramoto
    • Shogo ShinkaiShigehiro YamakitaYasuyuki KudoTaku IshimoriEiji OhtaYutaka Muramoto
    • G09F13/04G09F13/08
    • G02F1/133606G02B3/0006G02B5/045G02F1/133603G02F2001/133607
    • An illuminating apparatus is provided and includes a plurality of point light sources in one plane and a first optical sheet and a second optical sheet overlapped in a region facing the plurality of point light sources. The plurality of point light sources are arranged in a first direction and also arranged in a second direction orthogonal to the first direction. The first optical sheet has a plurality of first three-dimensional structures extending in a direction parallel to the first direction and arranged in a direction parallel to the second direction. The second optical sheet has a plurality of second three-dimensional structures extending in a direction parallel to the second direction and arranged in a direction parallel to the first direction. Each of the second three-dimensional structures has a shape which generates a larger amount of return light from normal incident light as compared with the first three-dimensional structures.
    • 提供一种照明装置,在一个平面中包括多个点光源,并且在与多个点光源相对的区域中重叠的第一光学片和第二光学片。 多个点光源配置在与第一方向正交的第二方向上的第一方向上。 第一光学片具有沿平行于第一方向的方向延伸的多个第一三维结构,并且沿与第二方向平行的方向排列。 第二光学片具有在与第二方向平行的方向上延伸并沿与第一方向平行的方向设置的多个第二三维结构。 与第一三维结构相比,第二三维结构中的每一个具有从正常入射光产生更大量的返回光的形状。
    • 10. 发明申请
    • ILLUMINATING DEVICE AND DISPLAY UNIT
    • 照明设备和显示单元
    • US20100195314A1
    • 2010-08-05
    • US12669396
    • 2009-05-20
    • Shogo ShinkaiShigehiro YamakitaHirokazu OdagiriYasuyuki Kudo
    • Shogo ShinkaiShigehiro YamakitaHirokazu OdagiriYasuyuki Kudo
    • G02F1/13357F21V1/00
    • G02B3/0043G02B5/0263G02F1/133606G02F1/133611G02F2001/133607
    • An illuminating device capable of decreasing not only in-plane luminance unevenness in the front face direction but also in-plane luminance unevenness when viewed from a diagonal direction is provided. Where an occupancy ratio of a return light generation section in which light from respective linear light sources vertically entering a light incident surface of an optical sheet is entirely reflected by a surface of a convex section and return light oriented toward a reflecting plate is generated out of a first region R1 when the optical sheet is viewed from the normal line direction of a face is K1; and where an occupancy ratio of a return light generation section in which light from the respective linear light sources vertically entering the light incident surface of the optical sheet is entirely reflected by a surface of convex sections and return light oriented toward the reflecting plate is generated out of a second region when the optical sheet is viewed from the normal line direction of the face is K2, and K1 is larger than K2.
    • 提供了一种照明装置,其能够不仅从正面方向减少面内的亮度不均匀性,还能够从对角线方向观察时降低面内的亮度不均匀性。 其中垂直进入光学片的光入射面的各个线性光源的光完全被凸部的表面反射并返回朝向反射板的光的返回光生成部的占有率从 当从面的法线方向观察光学片时的第一区域R1为K1; 并且其中来自垂直进入光学片的光入射表面的各个线性光源的光完全被凸部的表面反射并返回朝向反射板的光的返回光产生部的占有率被产生 当从面的法线方向观察光学片时的第二区域是K2,K1大于K2。