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    • 2. 发明申请
    • MICROMIRROR ARRY LENS WITH OPTICAL SURFACE PROFILES
    • 具有光学表面轮廓的MICROMIRROR ARRY镜头
    • US20080049291A1
    • 2008-02-28
    • US11933105
    • 2007-10-31
    • Sang BaekJin SohnGyoung ChoCheong Seo
    • Sang BaekJin SohnGyoung ChoCheong Seo
    • G02B26/02G02B26/08G02B5/10
    • G02B5/10G02B5/188G02B5/1895G02B17/002G02B26/0833
    • A Micromirror Array Lens comprises a plurality of micromirrors arranged on a flat or a curved surface to reflect incident light. Each micromirror in the Micromirror Array Lens is configured to have at least one motion. The Micromirror Array Lens forms at least one optical surface profile reproducing free surfaces by using the motions of the micromirrors. The free surface can be any two or three-dimensional continuous or discrete reflective surface. The Micromirror Array Lens having the corresponding optical surface profile provides optical focusing properties substantially identical to those of the free surface. The Micromirror Array Lens can forms various optical elements such as a variable focal length lens, a fixed focal length lens, an array of optical switches, a beam steerer, a zone plate, a shutter, an iris, a multiple focal length lens, other multi-function optical elements, and so on.
    • 微镜阵列透镜包括布置在平坦或弯曲表面上以反射入射光的多个微镜。 微镜阵列镜头中的每个微镜被配置为具有至少一个运动。 微镜阵列透镜通过使用微镜的运动而形成至少一个光学表面轮廓来再现自由表面。 自由表面可以是任何二维或三维连续或离散的反射表面。 具有对应的光学表面轮廓的微镜阵列透镜提供与自由表面基本相同的光学聚焦性质。 微镜阵列透镜可以形成各种光学元件,例如可变焦距透镜,固定焦距透镜,光学开关阵列,光束转向器,区域板,快门,光圈,多焦距透镜,其他 多功能光学元件等。
    • 4. 发明申请
    • Multi-step microactuator
    • 多级微型制动器
    • US20070182276A1
    • 2007-08-09
    • US11347590
    • 2006-02-04
    • Cheong SeoGyoung ChoSang Baek
    • Cheong SeoGyoung ChoSang Baek
    • H02N1/00
    • H02N1/006
    • A multi-step microactuator is provided with the multiple supports in a stepper plate to give multi-step displacement to a controlled object. The microactuator has advantages such that multiple motion can be applied to the controlled object and that the object can be controlled in a low driving voltage and that simple motion control is applied by digital controlling and that the degrees of freedom in motion of the object can be chosen by the number of the stepper plate and that only single voltage is needed for driving the micromirror motion. With many advantages, the multi-step microactuator provides a solution to overcome the difficulties in controlling multi-step motion.
    • 多步微型致动器设置有步进板中的多个支撑件,以向受控对象提供多步位移。 该微型致动器具有能够将多个运动应用于受控对象的优点,并且可以将对象控制在低驱动电压,并且通过数字控制应用简单的运动控制,并且物体的运动自由度可以是 由步进板的数量选择,并且仅需要单个电压来驱动微镜运动。 具有许多优点,多步微型致动器提供了解决控制多步运动困难的解决方案。
    • 6. 发明申请
    • Variable focal length lens comprising micromirrors with two degrees of freedom rotation
    • 可变焦距镜头包括具有两个自由度旋转的微镜
    • US20050275927A1
    • 2005-12-15
    • US10855715
    • 2004-05-27
    • Tae KimSang Baek
    • Tae KimSang Baek
    • G02B3/00G02B3/14G02B17/06G02B26/00G02B26/08G02B27/10
    • G02B3/0081G02B3/14G02B26/0841G02B26/085G02B26/0866
    • A micromirror array lens consists of many micromirrors with two degrees of freedom rotation and actuating components. As a reflective variable focal length lens, the array of micromirrors makes all lights scattered from one point of an object converge at one point of image plane. As operational methods for the lens, the actuating components control the positions of micromirrors electrostatically and/or electromagnetically. The optical efficiency of the micromirror array lens is increased by locating a mechanical structure upholding micromirrors and the actuating components under micromirrors. The known semiconductor microelectronics technologies can remove the loss in effective reflective area due to electrode pads and wires. Independent control of each micromirror is possible by known semiconductor microelectronics technologies. The micromirror array can form a lens with arbitrary shape and/or size, as desired.
    • 微镜阵列透镜由许多具有两个自由度旋转和致动部件的微镜组成。 作为反射可变焦距透镜,微镜阵列使得从物体的一个点散射的所有光在图像平面的一点聚集。 作为透镜的操作方法,致动部件静电和/或电磁地控制微镜的位置。 微镜阵列透镜的光学效率通过将保持微镜的机械结构和在微镜下的致动部件定位来增加。 已知的半导体微电子技术可以消除由于电极焊盘和电线引起的有效反射区域的损耗。 通过已知的半导体微电子技术,每个微镜的独立控制是可能的。 根据需要,微镜阵列可以形成任意形状和/或尺寸的透镜。
    • 8. 发明申请
    • Micromirror array lens with focal length gradient
    • 具有焦距梯度的微镜阵列透镜
    • US20060203358A1
    • 2006-09-14
    • US11076616
    • 2005-03-10
    • Gyoung ChoCheong SeoSang Baek
    • Gyoung ChoCheong SeoSang Baek
    • G02B17/00
    • G02B17/08G02B26/0833
    • An optical system includes a refractive lens system and a micromirror array lens with angled positioning to improve light efficiency. The micromirror array lens is optically coupled to the refractive lens system, and has a focal length gradient. The micromirror array lens is configured to focus the light input refracted by the micromirror array lens onto a focal plane, the micromiror array lens is positioned at an acute angle with respect to the light input and the focal plane. The optical system may further include an infrared filter and/or an optical stop to block unwanted light. The advantages of the present invention include improved light efficiency, image quality, and/or focusing.
    • 光学系统包括折射透镜系统和具有倾斜定位的微镜阵列透镜,以提高光效率。 微镜阵列透镜光学耦合到折射透镜系统,并且具有焦距梯度。 微镜阵列透镜被配置为将由微镜阵列透镜折射的光聚焦到焦平面上,微型阵列透镜相对于光输入和焦平面定位成锐角。 光学系统还可以包括红外滤光器和/或防止不想要的光的光学停止。 本发明的优点包括提高光效,图像质量和/或聚焦。
    • 10. 发明申请
    • Method of efficiently recovering database
    • 有效恢复数据库的方法
    • US20060200500A1
    • 2006-09-07
    • US11367455
    • 2006-03-06
    • Sang BaekJong Yun
    • Sang BaekJong Yun
    • G06F17/30
    • G06F11/1474G06F11/1441G06F2201/80
    • A method of efficiently recovering a database that can be applied to a mobile communication terminal employing a flash memory as a storage medium is provided. In the flash memory, a database (DB) storage area and a DB recovery area are separately allocated. Images of pages in the DB storage area that are objects to be changed are sequentially read and stored in a memory buffer, and the original images of the pages before change are assigned sequential serial numbers and backed up in the DB recovery area. Then, the images of the pages in the memory buffer are changed according to a transaction. This series of jobs is performed with respect to all pages that are the objects of change. Then, each page in the DB storage area that is the object of the change is updated with a corresponding changed page in the memory buffer. If the mobile communication terminal is abnormally terminated without successfully performing this update, when the terminal is booted again, it is confirmed whether or not the serial number of the last page in the DB recovery area matches the total number of pages stored in the DB recovery area. If the serial number matches the total number, with the original image of the page before modification stored in the DB recovery area, the corresponding page in the DB storage area is recovered.
    • 提供了一种有效地恢复可应用于采用闪存作为存储介质的移动通信终端的数据库的方法。 在闪速存储器中,分别分配数据库(DB)存储区域和DB恢复区域。 将要更改的对象的DB存储区域中的页面的图像顺序读取并存储在存储器缓冲器中,并且更改之前的页面的原始图像被分配顺序序列号并备份在DB恢复区域中。 然后,根据事务,存储器缓冲器中的页面的图像被改变。 对于作为变更对象的所有页面执行这一系列作业。 然后,作为更改对象的DB存储区域中的每个页面被更新为存储器缓冲器中的对应的改变的页面。 如果移动通信终端在没有成功执行该更新的情况下异常终止,则当再次引导终端时,确认DB恢复区域中的最后一页的序列号是否与DB恢复中存储的总页数匹配 区。 如果序列号与总数相匹配,则在DB恢复区中存储修改前的页面原始图像,DB存储区域中的相应页面将被恢复。