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    • 3. 发明授权
    • Focusing lens for LED
    • 聚焦镜头用于LED
    • US07411742B1
    • 2008-08-12
    • US11690866
    • 2007-03-26
    • Jin-Ho KimShung-Hoon HwangHee-Joong Lee
    • Jin-Ho KimShung-Hoon HwangHee-Joong Lee
    • G02B13/18G02B3/00
    • F21V5/04F21Y2115/10G02B3/02G02B19/0028G02B19/0061H01L33/58H01L33/60
    • A focusing lens for an LED is provided. The focusing lens for an LED, which concentrates light emitted from the LED so as to have directionality parallel to an optic axis, comprises: a transparent body; a first lens part formed in the body; and a second lens part covering the first lens, and wherein the first lens comprises: first and second aspheric lens surfaces which are convex in different sizes and are formed on planes being symmetric to each other; and wherein the second lens comprise: a plane of incidence formed to protrude from an outer circumference of the second aspheric lens surfaces, the plane of incidence into which the LED is inserted and which is configured to allow the light emitted from the LED to be incident and refracted; a plane of reflection formed to have a convex curved surface which extend and slopes to be progressive wider from the plane of incidence towards the second aspheric lens surface, the plane of reflection which is configured to allow the light emitted from the LED to be totally reflected; and a plane of emission formed to have a concave curved surface which extends and slopes from the plane of reflection towards the second aspheric lens surface, the plane of emission which is configured to allow the light emitted from the LED to be refracted and emitted as light being parallel to the optic axis. The focusing lens minimizes a loss of the light emitted from the LED and maximally reduces an angle of the emitted light, to effectively illuminate a local region at a long distance.
    • 提供了一种用于LED的聚焦透镜。 用于LED的聚焦透镜,其聚集从LED发射的光以具有平行于光轴的方向性,包括:透明体; 形成在体内的第一透镜部分; 以及覆盖所述第一透镜的第二透镜部,并且其中所述第一透镜包括:第一和第二非球面透镜表面,其以不同的大小凸出并形成在彼此对称的平面上; 并且其中所述第二透镜包括:入射平面,其形成为从所述第二非球面透镜表面的外周突出,所述入射平面被入射到所述LED中,并且被配置为允许从所述LED发射的光入射 并折射; 反射平面被形成为具有从入射平面朝向第二非球面透镜表面延伸和倾斜的渐进的较宽的凸曲面,被配置为允许从LED发射的光被完全反射的反射平面 ; 以及形成为具有从反射平面向第二非球面透镜表面延伸并倾斜的凹曲面的发射平面,被配置为允许从LED发射的光被折射并作为光发射的发射平面 平行于光轴。 聚焦透镜最大限度地减少从LED发射的光的损失,并最大限度地减少发射的光的角度,以有效地照亮远距离的局部区域。
    • 6. 发明授权
    • Liquid crystal display having circular shaped protrusions on the common electrode
    • 在公共电极上具有圆形突起的液晶显示器
    • US08441604B2
    • 2013-05-14
    • US13251790
    • 2011-10-03
    • Youn-Seung ChoiJin-Ho Kim
    • Youn-Seung ChoiJin-Ho Kim
    • G02F1/1343G02F1/1337
    • G02F1/1393G02F1/133707G02F1/134309G02F2001/134318
    • A VA mode LCD device is disclosed, to improve the viewing-angle properties by isotropically compensating for a viewing angle, in which the VA mode LCD device includes first and second substrates; a plurality of gate and data lines formed on the first substrate, and formed perpendicularly to define a plurality of pixel regions. A thin film transistor is formed in each pixel region of the first substrate. A pixel electrode and a common electrode are formed in each pixel of the respective first and second substrates, wherein the pixel and common electrodes generate an electric field. At least one first slit of a curved-stripe shape, such as a circular-stripe shape, is formed in the pixel electrode of the first substrate. At least one second slit is formed in the common electrode of the second substrate. A liquid crystal layer formed between the first and second substrates.
    • 公开了VA模式LCD装置,以通过各向同性地补偿视角来改善视角特性,其中VA模式LCD装置包括第一和第二基板; 多个栅极和数据线,形成在第一基板上,并垂直形成以限定多个像素区域。 在第一衬底的每个像素区域中形成薄膜晶体管。 像素电极和公共电极形成在相应的第一和第二基板的每个像素中,其中像素和公共电极产生电场。 在第一基板的像素电极中形成至少一个弯曲条形状的第一狭缝,例如圆形条纹形状。 在第二基板的公共电极中形成至少一个第二狭缝。 形成在第一和第二基板之间的液晶层。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR CORRECTING LENS SHADING
    • 矫正镜片的方法和装置
    • US20110007969A1
    • 2011-01-13
    • US12832631
    • 2010-07-08
    • Min-Kyu PARKHee-Chan ParkJin-Ho KimJi-Hye KimSung-Dae ChoMoon-Gi KangChang-Won KimHyun-Mook Oh
    • Min-Kyu PARKHee-Chan ParkJin-Ho KimJi-Hye KimSung-Dae ChoMoon-Gi KangChang-Won KimHyun-Mook Oh
    • G06K9/40
    • H04N5/3572
    • A lens shading correction method and apparatus are provided for removing vignetting occurring in digital images due to lens shading. A white image captured by an image pickup device and an image pickup unit is separated into reference white images corresponding to color channels. A vignetting center having a maximum light intensity is estimated in each of the reference white images. Multiple reference segments on each of the reference white images are defined. A lens shading correction value corresponding to each pixel constituting the reference segments are calculated using a corresponding light intensity. A lens shading correction function corresponding to each reference segment is derived using a corresponding lens shading correction value. Vignetting of a general image received in a general image processing mode is removed, using the derived multiple lens shading correction functions.
    • 提供了一种透镜阴影校正方法和装置,用于消除由于透镜阴影而在数字图像中发生的渐晕。 由图像拾取装置和图像拾取单元拍摄的白色图像被分离为与颜色通道对应的参考白色图像。 在每个参考白色图像中估计具有最大光强度的渐晕中心。 定义每个参考白图像上的多个参考段。 使用对应的光强度计算与构成基准片段的每个像素对应的镜片阴影校正值。 使用相应的透镜阴影校正值导出与每个参考片段对应的镜片遮蔽校正功能。 使用导出的多个透镜阴影校正功能来消除在一般图像处理模式中接收的一般图像的渐晕。