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    • 44. 发明专利
    • Surface light source device and display apparatus
    • 表面光源设备和显示设备
    • JP2014053280A
    • 2014-03-20
    • JP2013037144
    • 2013-02-27
    • Enplas Corp株式会社エンプラス
    • TAKATORI HIROSHI
    • F21S2/00F21Y101/02G02F1/13357
    • G02B6/0031G02B6/003G02B6/0046G02B6/0051G02B6/0055G02B6/0068G02B6/0096G02B19/0028G02B19/0047G02F1/133615G02F2201/34G02F2203/03
    • PROBLEM TO BE SOLVED: To provide a surface light source device capable of preventing the formation of a bright line on a center part of a light emission area.SOLUTION: A surface light source device 300 includes: a casing 310; a plurality of light emission devices 200 arrayed on inner surfaces of a pair of lateral walls 313, 315 in the casing 310; a reflection member 340 which is protruded from a base bottom surface of the casing 310 and reflects light emitted from the light emission devices 200 toward an opening part of the casing 310; and a light emission surface member 330 which has a light diffusive property and a light transmitting property and covers the opening part therewith. The light emission devices 200 are arrayed on lateral walls 313, 315 such that optical axis of a light emission element becomes parallel with the base bottom surface of the casing 310. The reflection member 340 has a ridge line 340a parallel with the lateral surfaces and a top surface of the casing 310 and the top part is formed with a curved surface containing the ridge line 340a.
    • 要解决的问题:提供能够防止在发光区域的中心部分形成亮线的表面光源装置。解决方案:面光源装置300包括:壳体310; 排列在壳体310中的一对侧壁313,315的内表面上的多个发光装置200; 反射构件340,其从壳体310的底部底面突出,并且将从发光装置200发射的光朝向壳体310的开口部反射; 以及具有光漫射性和透光性的发光面构件330,并且覆盖其开口部。 发光装置200排列在侧壁313,315上,使得发光元件的光轴变得与壳体310的底部底面平行。反射构件340具有与侧面平行的脊线340a和 壳体310的顶面和顶部形成有包含棱线340a的曲面。