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    • 12. 发明申请
    • Subminature imaging optical system
    • 超小型成像光学系统
    • US20090040626A1
    • 2009-02-12
    • US12222519
    • 2008-08-11
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • G02B13/18
    • G02B13/18
    • There is provided a subminiature imaging optical system subminiature imaging optical system including: a first lens element having a convex object-side surface; a second lens element having an object-side surface in contact with an image-side surface of the first lens element; and a third lens element having an object-side surface in contact with an image-side surface of the second lens element, wherein the object-side surface of the first lens element and an image-side surface of the third lens element are aspherical, and the third lens element has a point of inflection formed within an effective aperture thereof such that the image-side surface is convexed toward an image plane at a central portion to have positive refractive power and concaved toward the image plane at a peripheral portion to have negative refractive power.
    • 提供了一种超小型成像光学系统超小型成像光学系统,包括:具有凸形物体侧表面的第一透镜元件; 第二透镜元件,其具有与第一透镜元件的图像侧表面接触的物体侧表面; 以及第三透镜元件,其具有与所述第二透镜元件的像侧表面接触的物体侧表面,其中所述第一透镜元件的物体侧表面和所述第三透镜元件的像侧表面是非球面的, 并且第三透镜元件具有在其有效孔径内形成的拐点,使得图像侧表面朝向中心部分处的图像平面凸起以具有正折光力并且在周边部分处朝向像平面凹陷以具有 负屈光力。
    • 15. 发明授权
    • Subminiature imaging optical system
    • 超小型成像光学系统
    • US07876511B2
    • 2011-01-25
    • US12222519
    • 2008-08-11
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • G02B9/00G02B13/18
    • G02B13/18
    • There is provided an imaging optical system including: a first lens element having a convex object-side surface; a second lens element having an object-side planar surface in contact with an image-side surface of the first lens element and an image-side planar surface; and a third lens element having an object-side surface in contact with an image-side surface of the second lens element, wherein the object-side surface of the first lens element and an image-side surface of the third lens element are aspherical, and the third lens element has a point of inflection formed within an effective aperture thereof such that the image-side surface is convexed toward an image plane at a central portion to have positive refractive power and concaved toward the image plane at a peripheral portion to have negative refractive power.
    • 提供了一种成像光学系统,包括:第一透镜元件,具有凸形物体侧表面; 第二透镜元件,其具有与第一透镜元件的像侧表面接触的物体侧平面和图像侧平面; 以及第三透镜元件,其具有与所述第二透镜元件的像侧表面接触的物体侧表面,其中所述第一透镜元件的物体侧表面和所述第三透镜元件的像侧表面是非球面的, 并且第三透镜元件具有在其有效孔径内形成的拐点,使得图像侧表面朝向中心部分处的图像平面凸起以具有正折光力并且在周边部分处朝向像平面凹陷以具有 负屈光力。
    • 17. 发明申请
    • Subminiature optical system
    • 超小型光学系统
    • US20090086339A1
    • 2009-04-02
    • US12076011
    • 2008-03-12
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • Hye Ran OhIn Cheol ChangSeok Cheon LeeYoung Su JinCheong Hee Lee
    • G02B9/60
    • G02B13/006G02B9/10G02B9/28G02B13/003
    • There is provided a subminiature optical system mounted in a mobile communication terminal and a personal digital assistant (PDA) or used for a monitoring camera and a digital camera. The subminiature optical system includes: a first lens entirely having a positive refractive power and comprising a first lens element having an object-side surface convex toward the object on an optical axis; a second lens element having an object-side surface in contact with an image-side surface of the first lens element; and a third lens element having an object-side surface in contact with an image-side surface of the second lens element and an image-side surface concave toward an image on the optical axis; and a second lens entirely having a positive refractive power and comprising a fourth lens element having an object-side surface convex toward the object on the optical axis; and a fifth lens element having an object-side surface in contact with an image-side surface of the fourth lens element and an image-side surface formed of a plane.
    • 提供了一种安装在移动通信终端和个人数字助理(PDA)中的超小型光学系统,或者用于监视摄像机和数字照相机。 该超小型光学系统包括:完全具有正折光力的第一透镜,并且包括在光轴上具有朝向物体凸起的物体侧表面的第一透镜元件; 第二透镜元件,其具有与第一透镜元件的图像侧表面接触的物体侧表面; 以及第三透镜元件,其具有与第二透镜元件的像侧表面接触的物体侧表面和朝向光轴上的图像凹陷的图像侧表面; 和具有正屈光力的第二透镜,并且包括具有在光轴上朝向物体凸起的物体侧表面的第四透镜元件; 以及具有与第四透镜元件的图像侧表面接触的物体侧表面和由平面形成的图像侧表面的第五透镜元件。
    • 19. 发明授权
    • Multi-wavelength semiconductor laser device
    • 多波长半导体激光器件
    • US07460579B2
    • 2008-12-02
    • US11159350
    • 2005-06-23
    • Jong Ik ParkYu Seung KimKi Won MoonHye Ran Oh
    • Jong Ik ParkYu Seung KimKi Won MoonHye Ran Oh
    • H01S5/00
    • H01S5/4025H01S3/08086H01S3/0809
    • A semiconductor laser device comprises: a substrate having a top surface divided into a first region and a second region; a high-output LD including a first conductivity-type clad layer, an active layer, and a second conductivity-type clad layer including an upper portion having a first ridge structure, sequentially formed on the first region of the substrate; and a low-output LD including a first conductivity-type clad layer, an active layer, and a second conductivity-type clad layer including an upper portion having a second ridge structure, sequentially formed on the second region of the substrate, wherein the first and second ridge structures are formed in such a manner that they are extended to both ends opposed to each other, the first ridge structure is bent at two or more bending positions, and the second ridge structure is rectilinear.
    • 半导体激光装置包括:基板,其具有分为第一区域和第二区域的顶表面; 包括依次形成在所述基板的所述第一区域上的包括具有第一脊结构的上部的第一导电型覆盖层,有源层和第二导电型覆盖层的高输出LD, 以及依次形成在所述基板的第二区域上的包括第一导电型覆盖层,有源层和包括具有第二脊结构的上部的第二导电型覆盖层的低输出LD,其中, 并且第二脊结构形成为使得它们彼此相对延伸到两个端部,第一脊结构在两个或更多个弯曲位置弯曲,并且第二脊结构是直线的。