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    • 5. 发明申请
    • PLANAR LIGHT SOURCE DEVICE
    • 平面光源设备
    • US20110228558A1
    • 2011-09-22
    • US13130758
    • 2009-10-13
    • Tatsuo UchidaYoshito SuzukiTohru KawakamiTakahiro IshinabeBaku KatagiriYoshihiro HashimotoShoichi IshiharaShuichi KozakiYutaka Ishii
    • Tatsuo UchidaYoshito SuzukiTohru KawakamiTakahiro IshinabeBaku KatagiriYoshihiro HashimotoShoichi IshiharaShuichi KozakiYutaka Ishii
    • F21V7/22
    • G02B6/0055G02B6/0031G02B6/0046G02B6/0053
    • Conventional planar light source devices have a problem that increasing a utilization ratio of light results in a very narrow angle distribution of light. A planar light source device of the present invention has a light source (1), a light guide plate (2) for introducing light coming from the light source via a light-incident plane of the light guide plate and emits the light from almost all area of a light emission plane, and a light source side reflector (3) for reflecting the light coming from the light source and light which comes from the light source and is reflected by the light-incident plane of the light guide plate so that the reflected light is emitted to the light-incident plane of the light guide plate. The planar light source device further includes a lower side reflector (5) for introducing light emitted from the lower plane of the light guide plate into the light guide plate again, and an optical member (4) for changing a traveling direction of first light (10) which is introduced via the light-incident plane to pass through the light guide plate and is emitted from an upper plane of the light guide plate to a vertical upper direction. The lower side reflector is inclined by an angle of 5°-60° with respect to the lower plane of the light guide plate, and θ2=90°−θ1±10° is met where θ1 (°) represents a maximum angle between the upper plane and a direction in which the first light is emitted from the upper plane and θ2 (°) represents an apex angle of the optical member.
    • 传统的平面光源装置具有提高光的利用率导致光的非常窄的角度分布的问题。 本发明的平面光源装置具有:光源(1),导光板(2),用于经由导光板的入射面导入来自光源的光,并从几乎全部发射光 光源侧反射器(3),用于反射来自光源的光和来自光源的光,并被导光板的光入射面反射,使得 反射光被发射到导光板的光入射面。 平面光源装置还包括用于将从导光板的下平面发射的光再次引入导光板的下侧反射器(5),以及用于改变第一光的行进方向的光学部件(4) 10),其经由光入射面引入以穿过导光板,并且从导光板的上平面发射到垂直上方。 下侧反射器相对于导光板的下平面倾斜5°-60°,和2θ= 90° - 角度; 1±10°,其中&1;(°) 表示上平面与第一光从上平面发射的方向和角度之间的最大角度; 2(°)表示光学构件的顶角。
    • 7. 发明授权
    • Optical component using optical transmission element joining metal holder
    • 使用光传输元件接合金属支架的光学部件
    • US07313292B2
    • 2007-12-25
    • US10941940
    • 2004-09-16
    • Yoshihiro HashimotoKen MatsuokaShinichi TakagiKatsunori SuzukiTetsutsugu Hamano
    • Yoshihiro HashimotoKen MatsuokaShinichi TakagiKatsunori SuzukiTetsutsugu Hamano
    • G02B6/12G02B6/32G02B6/02
    • G02B7/025G02B7/008G02B7/028
    • An optical component comprises an optical transmission element (e.g., an optical lens) whose circumferential wall partially joins a metal holder via a joining material (e.g., a low melting point glass), wherein stress is normally applied to the optical transmission element in a compression direction when joining the metal holder. The optical transmission element is inserted into a through hole of the metal holder, and the joining material is kept in a bank actualized by a tapered portion formed in proximity to one end of the through hole of the metal holder. This prevents tensile stress from being applied to the optical transmission element; thus, it is possible to avoid the occurrence of cracks and separations in the optical transmission element; and it is possible to avoid the occurrence of errors in optical characteristics, regardless of variations of the environmental temperature, so that, the optical component is improved in reliability.
    • 光学部件包括光学传输元件(例如,光学透镜),其周壁通过接合材料(例如,低熔点玻璃)部分地连接金属保持器,其中应力通常以压缩方式施加到光传输元件 连接金属支架时的方向。 光传输元件插入到金属保持器的通孔中,并且接合材料保持在由金属保持器的通孔的一端附近形成的锥形部分实现的堤岸中。 这防止了拉伸应力施加到光传输元件上; 因此,可以避免在光传输元件中发生裂纹和分离; 并且不管环境温度的变化如何,可以避免出现光学特性的误差,从而提高了光学部件的可靠性。
    • 8. 发明申请
    • Optical waveguide element
    • 光波导元件
    • US20050157970A1
    • 2005-07-21
    • US11066446
    • 2005-02-28
    • Tohru SugamataYoshihiro Hashimoto
    • Tohru SugamataYoshihiro Hashimoto
    • G02B6/12G02F1/03G02F1/035G02F1/225G02B6/26
    • G02F1/2255G02F1/0316G02F1/225
    • A first branched optical waveguide and a second branched optical waveguide, to constitute a Mach-Zehnder type optical waveguide, are formed at the surface of a substrate. A first ground electrode, a signal electrode and a second ground electrode are provided on a buffer layer formed on the substrate. The second ground electrode is partially cut away and divided, to form a ditch therein, so that the modulating electrode composed of the signal electrode, the first and the second ground electrodes are substantially symmetrized on the center line between the first and the second optical waveguides. Then, the ratio (d2/d1) of the distance d2 between the signal electrode and the second branched optical waveguide to the distance d1 between the signal electrode and the first electrode is set within 3.5-7.5.
    • 在基板的表面形成有构成马赫 - 曾德尔型光波导的第一分支光波导和第二分支光波导。 第一接地电极,信号电极和第二接地电极设置在形成在基板上的缓冲层上。 第二接地电极被部分地切除并分开,以在其中形成沟槽,使得由信号电极,第一和第二接地电极构成的调制电极在第一和第二光波导之间的中心线上基本对称 。 然后,将信号电极和第二分支光波导之间的距离d2与信号电极和第一电极之间的距离d1的比率(d2 / d1)设定为3.5〜7.5。