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    • 21. 发明授权
    • Lithium secondary battery
    • 锂二次电池
    • US07258951B2
    • 2007-08-21
    • US09494211
    • 2000-01-25
    • Il-Ki WooSang-Won LeeJung-Joon ParkYoung-Bae RohKwang-Sik Kim
    • Il-Ki WooSang-Won LeeJung-Joon ParkYoung-Bae RohKwang-Sik Kim
    • H01M4/66H01M6/14
    • H01M4/131H01M4/133H01M4/505H01M4/525H01M4/661H01M10/0525Y10T29/49108
    • A lithium secondary battery exhibiting good mechanical properties and using a thin negative current collector is provided. The lithium secondary battery includes a positive electrode formed by coating lithium metal oxides on a positive current collector and a negative electrode formed by coating carbonaceous materials or SnO2 on a negative current collector. The negative current collector is made of a Cu-based alloy foil with a thickness of 20 μm or less and the Cu-based alloy foil includes at least one material selected from the group consisting of nickel, titanium, magnesium, tin, zinc, boron, chromium, manganese, silicone, cobalt, iron, vanadium, aluminum, zirconium, niobium, phosphorous, bismuth, lead, silver and misch metal. The lithium secondary battery further includes a separator interposed between the positive and negative electrodes and an electrolyte into which the positive and negative electrodes and the separator are immersed.
    • 提供具有良好的机械性能并使用薄的负极集电体的锂二次电池。 锂二次电池包括通过在正极集电体上涂覆锂金属氧化物而形成的正极和通过在负极集电体上涂覆碳质材料或SnO 2 N 2形成的负极。 负极集电体由厚度为20μm以下的Cu系合金箔构成,Cu系合金箔包含选自镍,钛,镁,锡,锌,硼中的至少一种 ,铬,锰,硅酮,钴,铁,钒,铝,锆,铌,磷,铋,铅,银和混合金属。 锂二次电池还包括插入在正极和负极之间的隔板和浸入正极和负极和隔板的电解质。
    • 22. 发明申请
    • Compact zoom lens
    • 紧凑型变焦镜头
    • US20060245075A1
    • 2006-11-02
    • US11248740
    • 2005-10-12
    • Ki-woo Lee
    • Ki-woo Lee
    • G02B15/14
    • G02B15/177
    • A compact zoom lens suitable for an imaging optical system using a solid-state image sensing device is provided. The zoom lens includes a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power. The first through third lens groups are sequentially arranged from an object side toward an image side. The first, second, and third lens groups move when magnification changes from the wide-angle position to the telephoto position, and a refractive index G1n of at least one lens element included in the first lens group satisfies 1.90
    • 提供了适用于使用固态图像感测装置的成像光学系统的紧凑型变焦透镜。 变焦透镜包括具有负折光力的第一透镜组,具有正折光力的第二透镜组和具有正折光力的第三透镜组。 第一至第三透镜组从物体侧朝向像侧顺序排列。 当放大率从广角位置变化到远摄位置时,第一,第二和第三透镜组移动,并且包括在第一透镜组中的至少一个透镜元件的折射率G1n满足1.90
    • 28. 发明授权
    • Zoom lens system
    • 变焦镜头系统
    • US07791818B2
    • 2010-09-07
    • US12316642
    • 2008-12-15
    • Ki-woo Lee
    • Ki-woo Lee
    • G02B15/14G02B27/64
    • G02B15/173
    • A zoom lens system includes, arranged sequentially from an object side, a first lens group including at least one reflective optical member changing the optical path of an incident light ray, and having positive refractive power; a second lens group having negative refractive power; a third lens group having positive refractive power; and a fourth lens group having positive refractive power, and during a magnification change from a wide-angle position to a telephoto position, the first lens group and the third lens group are not moved, the second lens group is moved from the object side towards an image side, and the fourth lens group is linearly moved from the image side towards the object side.
    • 变焦透镜系统包括:从物体侧依次布置第一透镜组,第一透镜组包括改变入射光线的光路并且具有正折射光焦度的至少一个反射光学部件; 具有负屈光力的第二透镜组; 具有正折射力的第三透镜组; 以及具有正折射力的第四透镜组,并且在从广角位置到远摄位置的放大率变化期间,第一透镜组和第三透镜组不移动,第二透镜组从物体侧朝向 图像侧,第四透镜组从图像侧向物体侧线性移动。