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    • 2. 发明专利
    • Liquid crystal display device
    • 液晶显示装置
    • JP2013190778A
    • 2013-09-26
    • JP2013020335
    • 2013-02-05
    • Keio Gijuku学校法人慶應義塾Dainippon Printing Co Ltd大日本印刷株式会社Nitto Denko Corp日東電工株式会社Nitto Jushi Kogyo Kk日東樹脂工業株式会社
    • KOIKE YASUHIRONAKAMURA RUNAARAKAWA FUMIHIROYAMAMOTO HIROSHIFUCHITA TAKEHITOMAEZAWA SHOHEITAKEMOTO HIROYUKIMURAKAMI NAHOISHIKAWA TAKESHIHIGUCHI EIZABURO
    • G02F1/13357F21S2/00F21Y101/02
    • G02B6/0038G02B5/045G02B6/0053G02B6/0068G02F1/133528G02F1/133536G02F1/1336
    • PROBLEM TO BE SOLVED: To provide a liquid crystal display device that has high utilization efficiency of light and can display a bright video.SOLUTION: A liquid crystal display device comprises: a liquid crystal display panel 15; and a surface light source unit 20. The surface light source unit 20 includes: a light source part; a light guide plate 21 that makes light from the light source part incident from a light incidence surface facing the light source part, that has a maximum strength of directivity in a first direction forming a predetermined angle from a normal direction of a light emitting surface in a surface nearly parallel to a light guiding direction of light, and that emits first directivity light that is polarization light having a high ratio of a polarization component vibrating in the surface; and a prism sheet 30 that emits the first directivity light as a second directivity light directed in a second direction in a predetermined angle from the normal direction of the light emitting surface of the light guide plate while substantially maintaining a polarization state of the first directivity light. A ridge line direction of a unit prism is nearly parallel to the light incidence surface of the light guide plate 21, a transmission of axis of a second polarization plate 14 is nearly parallel to a polarization direction of the second directivity light and a light guiding direction of light of the light guide palate 21, and the transmission axis of the second polarization plate 14 is nearly orthogonal to a transmission axis of a first polarization plate 13.
    • 要解决的问题:提供一种具有高利用率的光并能够显示明亮视频的液晶显示装置。解决方案:一种液晶显示装置,包括:液晶显示面板15; 和面光源单元20.面光源单元20包括:光源部; 使来自光源部的光从面对光源部的光入射面入射的导光板21,其具有从第一方向的最大强度方向与发光面的法线方向成规定的角度 与光的导光方向大致平行的表面,发出第一方向性光,该方向性光是表面振动的偏振分量的高比率的偏振光; 以及棱镜片30,其将基本上保持第一方向性光的偏振状态的第一方向性光作为从导光板的发光面的法线方向以规定角度朝向第二方向的第二方向性光, 。 单位棱镜的棱线方向与导光板21的光入射面几乎平行,第二偏光板14的轴的透射率几乎平行于第二方向性光的偏振方向,导光方向 导光腭21的光,第二偏光板14的透射轴与第一偏光板13的透射轴几乎正交。
    • 3. 发明专利
    • Surface illuminant device and display device
    • 表面照明装置和显示装置
    • JP2014067531A
    • 2014-04-17
    • JP2012210997
    • 2012-09-25
    • Enplas Corp株式会社エンプラスKeio Gijuku学校法人慶應義塾
    • ARAI TAKAYUKIKOBASHI KAZUTERUKOIKE YASUHIROTAKAYA AKIHIRO
    • F21S2/00F21Y101/02G02F1/13357
    • PROBLEM TO BE SOLVED: To provide a surface illuminant device that can be easily designed and manufactured.SOLUTION: A surface illuminant device 100 includes a laser beam source 200 and a luminous flux control member 300. The luminous flux control member 300 includes a deflection surface 320 that deflects a laser beam L, a first prism train 340 that reflects the laser beam L deflected by the deflection surface 320, a second prism train 360 that reflects the laser beam L reflected by the first prism train 340, and an exit surface 380 that exits the laser beam L reflected by the second prism train 360. The first prism train 320 includes a plurality of first prisms 341 arranged in such a way that the respective first ridge lines 344 of the first prisms 341 are parallel to each other and are positioned on a same first virtual plane 345. The second prism train 360 includes a plurality of second prisms 361 arranged in such a way that the respective second ridge lines 364 of the second prisms 361 are parallel to each other and are positioned on a same second virtual plane 365.
    • 要解决的问题:提供可以容易地设计和制造的表面光源装置。解决方案:表面光源装置100包括激光束源200和光束控制构件300.光束控制构件300包括偏转表面 320,其使反射由偏转表面320偏转的激光束L的第一棱镜系列340反射激光束L,反射由第一棱镜列340反射的激光束L的第二棱镜列360和出射表面380 离开由第二棱镜系列360反射的激光束L.第一棱镜系列320包括多个第一棱镜341,其以这样的方式设置,使得第一棱镜341的相应的第一脊线344彼此平行并且是 位于相同的第一虚拟平面345上。第二棱镜列360包括多个第二棱镜361,其布置成使得第二棱镜360的相应的第二棱线364 361彼此平行并且位于相同的第二虚拟平面365上。
    • 4. 发明专利
    • Method for manufacturing plastic optical fiber
    • 制造塑料光纤的方法
    • JP2013213888A
    • 2013-10-17
    • JP2012083454
    • 2012-04-02
    • Sekisui Chem Co Ltd積水化学工業株式会社Keio Gijuku学校法人慶應義塾
    • YOSHIDA HIROTSUGUWADA SHUYAKAWAUCHI HITOSHIKOIKE YASUHIRO
    • G02B6/00B29C47/06B29C47/12B29L9/00B29L11/00D01D5/34
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a plastic optical fiber excellent in transmissibility of a light signal, small bending performance, and diameter accuracy, by using a process of melting extrusion molding.SOLUTION: In a process of melting extrusion molding, a core part and a clad part are formed by using two or more melting extruders 1, 11, two or more multi-layer dies 12, and a multi-layer spinning nozzle 15. A multi-layer molten plastic consisting of the core part, the clad part, and a reinforcement layer and discharged from the spinning nozzle 15 is taken in a vertical downward direction under the following conditions to manufacture a plastic optical fiber: assuming that the bore diameter of the spinning nozzle 15 is A(mm), the outer diameter of the plastic optical fiber F is B(mm), and the length from the outlet of the spinning nozzle 15 to a take-off roller 16a is C(mm), (a) 8≤A/B≤25, (b) C×B+62×A-725×A≤2400, and (c) 700≤C are satisfied.
    • 要解决的问题:通过使用熔融挤出成型的方法,提供一种制造光信号传递性优异,弯曲性能好,直径精度优异的塑料光纤的制造方法。解决方案:在熔融挤出成型的过程中, 通过使用两个以上的熔融挤出机1,11,两个以上的多层模具12和多层纺丝喷嘴15,形成芯部和包层部。多层熔融塑料由芯部, 在纺丝喷嘴15中排出的包层部分和加强层在下列条件下沿垂直向下的方向被取下以制造塑料光纤:假设纺丝喷嘴15的孔直径为A(mm),则 塑料光纤F的外径为B(mm),从纺丝喷嘴15的出口到送出辊16a的长度为C(mm),(a)8≤A/B≤25( b)C×B + 62×A-725×A≤2400,(c)满足700≤C。