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81. 发明授权

US07649664B1 Two-element F-θ lens used for micro-electro mechanical system (MEMS) laser scanning unit 失效
标题翻译：用于微机电系统（MEMS）激光扫描单元的两元件F-θ透镜
公开(公告)号：US07649664B1
公开(公告)日：2010-01-19
申请号：US12424416
申请日：2009-04-15
申请人： Bo-Yuan Shih , San-Woei Shyu
发明人： Bo-Yuan Shih , San-Woei Shyu
IPC分类号： G02B26/08
CPC分类号： G02B13/0005 , G02B26/0833
摘要： A two-element f-θ lens used for a micro-electro mechanical system (MEMS) laser scanning unit includes a first lens and a second lens, the first lens is a bi-convex lens and the second lens is a bi-convex lens. At least one optical surface is an Aspherical surface in both main scanning direction and sub scanning direction, and satisfies special optical conditions. The two-element f-θ lens corrects the nonlinear relationship between scanned angle and the time into the linear relationship between the image spot distances and the time. Meanwhile, the two-element f-θ lens focuses the scan light to the target in the main scanning and sun scanning directions, such that the purpose of the scanning linearity effect and the high resolution scanning can be achieved.
摘要翻译：用于微机电系统（MEMS）激光扫描单元的双元件f-θ透镜包括第一透镜和第二透镜，第一透镜是双凸透镜，第二透镜是双凸透镜。至少一个光学表面是主扫描方向和副扫描方向上的非球面，并且满足特殊的光学条件。双元素f-theta透镜将扫描角度与时间之间的非线性关系校正为图像点距离与时间之间的线性关系。同时，双元素f-θ透镜在主扫描和太阳扫描方向上将扫描光聚焦到目标，使得可以实现扫描线性效应和高分辨率扫描的目的。

82. 发明授权

US07492528B2 Two-piece type optical imaging lens 失效
标题翻译：两片式光学成像镜头
公开(公告)号：US07492528B2
公开(公告)日：2009-02-17
申请号：US11980709
申请日：2007-10-31
申请人： San-Woei Shyu
发明人： San-Woei Shyu
IPC分类号： G02B3/02 , G02B13/18 , G02B9/06 , G02B9/08
CPC分类号： G02B9/06 , G02B13/003 , G02B13/18
摘要： A two-piece type optical imaging lens that includes a first lens element with positive refractive power, a second lens element with positive refractive power, an IR cut-off filter and an image sensor arranged along an optical axis in order from an object side. The first lens element and the second lens element are both meniscus aspherical molded glass lens while a convex surface of the first lens element is on the object side and a convex surface of the second lens is on the image side. The two-piece type optical imaging lens satisfies following conditions: 0.4f≦d
摘要翻译：具有正屈光力的第一透镜元件，具有正屈光力的第二透镜元件，IR截止滤光器和沿着光轴从物体侧排列的图像传感器的两片式光学成像透镜。第一透镜元件和第二透镜元件都是弯液面非球面模制玻璃透镜，而第一透镜元件的凸表面在物体侧，第二透镜的凸表面在图像侧。两片式光学成像透镜满足以下条件：0.4f <= d <0.9f，0.5f <= | R3 | <= 100f，5 <| f2 | / | f1 <15和20 <= Vd < 60，其中f是整个成像透镜的有效焦距，d是第一透镜元件的物体侧的凸面与第二透镜元件的像侧的凸面之间的距离，R3是半径第二透镜元件的物体侧的曲率f1是第一透镜元件的有效焦距，f2是第二透镜元件的有效焦距，Vd是第一透镜元件的阿贝数，以及第二透镜元件的第二透镜元件的阿贝数透镜元件因此，透镜具有高分辨率和最小化的总长度，使得透镜体积减小，成本也降低。因此，根据本发明的透镜更广泛地应用。

83. 发明申请

US20080093759A1 Molding lens with indentation for measuring eccentricity and method for measuring eccentricity thereof 失效
标题翻译：用于测量偏心的压痕的成型透镜和用于测量偏心率的方法
公开(公告)号：US20080093759A1
公开(公告)日：2008-04-24
申请号：US11902974
申请日：2007-09-27
申请人： San-Woei Shyu , Chi-Hsiung Wang , Chih-Hsiung Huang
发明人： San-Woei Shyu , Chi-Hsiung Wang , Chih-Hsiung Huang
IPC分类号： B29C45/76
CPC分类号： G02B3/00 , B29D11/00009 , G01M11/0242
摘要： A molding lens with indentations for measuring eccentricity and a method for measuring eccentricity thereof are disclosed. At least one indentation concentric with an optical surface is respectively disposed on a front plane and a rear plane of the molding lens on area outside the optical surface while the indentation is observed by means of a measuring microscope. Moreover, the eccentricity of the molding lens is detected by eccentricity test function of the measuring microscope and the eccentric direction is defined so as to modify the lens mould and replace conventional eccentricity test that uses a transmission eccentric scale indicator in combination with a jig. Thus the cost of test equipment is reduced, test procedure is simplified and efficiency of mould modification is improved. Therefore, it's more convenient to manage manufacturing of the lens.
摘要翻译：公开了一种用于测量偏心率的压痕的成型透镜和用于测量偏心率的方法。与光学表面同心的至少一个凹槽分别设置在模制透镜的前平面和后平面上，同时通过测量显微镜观察凹陷。此外，通过测量显微镜的偏心测试功能来检测成型透镜的偏心度，并且定义偏心方向以修改透镜模具并且替换使用透镜偏心刻度指示器与夹具组合的常规偏心测试。因此，测试设备的成本降低，简化了测试程序，提高了模具修改的效率。因此，管理镜头制造更方便。

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