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    METHOD AND APPARATUS FOR ALIGNING LENS ASSEMBLY OF CAMERA
    1.
    发明公开
    METHOD AND APPARATUS FOR ALIGNING LENS ASSEMBLY OF CAMERA 审中-公开

    公开(公告)号：US20240295462A1

    公开(公告)日：2024-09-05

    申请号：US18178011

    申请日：2023-03-03

    Applicant: E-CON SYSTEMS INDIA PRIVATE LIMITED.

    Inventor： Nandagopalan V ,  Pavithra S

    IPC: G01M11/02

    CPC classification number: G01M11/0264 ,  G01M11/0292

    Abstract: Embodiments of the present disclosure provide a method for aligning a lens assembly of a camera. The method is performed by an image processor of the camera. The method includes obtaining at least one image frame being captured by the camera. The method includes determining at least one slant edge spread over at least one region of at least one image frame by analyzing each image frame. The method includes estimating contrast variations in the at least one slant edge spread over the at least one region of the at least one image frame using Modulation Transfer Function (MTF). The method includes aligning the lens assembly of the camera in accordance with the estimated contrast variations in the at least one slant edge spread over the at least one region of the at least one image frame.

    TESTING DEVICE FOR AN EUV OPTICAL SYSTEM
    5.
    发明申请
    TESTING DEVICE FOR AN EUV OPTICAL SYSTEM 有权
    用于EUV光学系统的测试设备

    公开(公告)号：US20160282221A1

    公开(公告)日：2016-09-29

    申请号：US15179252

    申请日：2016-06-10

    Applicant: Carl Zeiss SMT GmbH

    Inventor： Alexander HUEBEL ,  Thomas NIEDERHAUSEN

    IPC: G01M11/02

    CPC classification number: G01M11/0292 ,  G01M11/005 ,  G03F7/70316 ,  G03F7/70591 ,  G03F7/7085 ,  G21K1/062 ,  H05G2/003

    Abstract: A testing device (100) for an EUV optical system (200) includes a generating device (10) configured to generate wavelength variable test spectra for the EUV optical system (200) and a sensor unit configured to detect the test spectra generated by the EUV optical system (200).

    Abstract translation: 用于EUV光学系统（200）的测试装置（100）包括：生成装置（10），被配置为生成用于EUV光学系统（200）的波长可变测试光谱;以及传感器单元，被配置为检测由EUV产生的测试光谱 光学系统（200）。

    Lens assembly testing method
    6.
    发明授权
    Lens assembly testing method 有权
    镜头组装测试方法

    公开(公告)号：US09001315B2

    公开(公告)日：2015-04-07

    申请号：US14062872

    申请日：2013-10-24

    Applicant: Hon Hai Precision Industry Co., Ltd.

    Inventor： Hung-Tsan Shen

    IPC: G01M11/00 ,  G01M11/02

    CPC classification number: G01M11/0292

    Abstract: A lens assembly testing method includes: providing a lens assembly having a first lens and a second lens placed on the first lens; determining whether a modulation transfer function value of the lens assembly is in a predetermined range; if not, separating the first lens and the second lens, and forming a first coating layer and a second coating layer on the first lens to obtain a coated first lens with a number of dots; capturing two images of the coated first lens; attaching the coated first lens on the second lens, and capturing another two images of the coated first lens; determining an actual moving distance of a chosen dot using a 3D-Digital image correlation method according to the four images; adjusting a size of the first lens according to the actual moving distance; and displaying the adjusted size of the first lens to a user.

    Abstract translation: 一种透镜组件测试方法，包括：提供具有放置在第一透镜上的第一透镜和第二透镜的透镜组件; 确定所述透镜组件的调制传递函数值是否在预定范围内; 如果不是，分离第一透镜和第二透镜，并且在第一透镜上形成第一涂层和第二涂层以获得具有多个点的涂覆的第一透镜; 捕获涂覆的第一透镜的两个图像; 将涂覆的第一透镜附接在第二透镜上，并且捕获涂覆的第一透镜的另外两个图像; 使用根据所述四个图像的3D数字图像相关方法确定所选择的点的实际移动距离; 根据实际移动距离调整第一透镜的尺寸; 并将第一透镜的调整尺寸显示给用户。

    Methods, apparatuses, and computer program products for determining a modulation transfer function of an imaging system
    7.
    发明授权
    Methods, apparatuses, and computer program products for determining a modulation transfer function of an imaging system 有权
    用于确定成像系统的调制传递函数的方法，装置和计算机程序产品

    公开(公告)号：US08837837B2

    公开(公告)日：2014-09-16

    申请号：US13340869

    申请日：2011-12-30

    Applicant: Mahmoud Ramze Rezaee ,  Yonas Tesfazghi Weldeselassie

    Inventor： Mahmoud Ramze Rezaee ,  Yonas Tesfazghi Weldeselassie

    IPC: G06K9/00 ,  G06K9/48

    CPC classification number: G01M11/0292 ,  A61B6/037 ,  A61B6/502 ,  A61B6/583

    Abstract: Methods, apparatuses, and computer program products are provided for determining a modulation transfer function of an imaging system. A method may include accessing an image of a phantom having a substantially circular shaped feature captured by the imaging system. The method may further include detecting the circular shaped feature within the image. The method may additionally include defining at least one line extending from a point within the detected circular shaped feature to a point outside of the circular shaped feature. The method may also include determining an edge spread function based at least in part on the defined at least one line. The method may further include determining the modulation transfer function of the imaging system based at least in part on the determined edge spread function. Corresponding apparatuses and computer program products are also provided.

    Abstract translation: 提供了用于确定成像系统的调制传递功能的方法，装置和计算机程序产品。 一种方法可以包括访问具有由成像系统捕获的大致圆形特征的体模的图像。 该方法还可以包括检测图像内的圆形特征。 该方法可以另外包括限定从检测到的圆形特征内的点延伸到圆形特征外的点的至少一条线。 该方法还可以包括至少部分地基于限定的至少一条线来确定边缘扩展函数。 该方法还可以包括至少部分地基于所确定的边缘扩展函数来确定成像系统的调制传递函数。 还提供了相应的设备和计算机程序产品。

    Method and system for measuring lens quality
    8.
    发明授权
    Method and system for measuring lens quality 失效
    测量镜头质量的方法和系统

    公开(公告)号：US08644634B2

    公开(公告)日：2014-02-04

    申请号：US12712180

    申请日：2010-02-24

    Applicant: Wen-Yi Wu ,  Huo-Ping Fu

    Inventor： Wen-Yi Wu ,  Huo-Ping Fu

    IPC: G06K9/40

    CPC classification number: G01M11/0292

    Abstract: A method for measuring lens quality includes receiving and transmitting an image's information to a location module through an image collecting module. A location module partitions the image's information into a plurality of measure areas. An image processing module computes the Modulation Transfer Function (MTF) of each measure area. A comparing module compares the MTF with a predetermined MTF to determine quality of the lenses.

    Abstract translation: 用于测量透镜质量的方法包括通过图像采集模块接收和发送图像的信息到位置模块。 位置模块将图像的信息分割成多个测量区域。 图像处理模块计算每个测量区域的调制传递函数（MTF）。 比较模块将MTF与预定的MTF进行比较以确定透镜的质量。

    Method for detecting parfocality of zoom-stereo microscope
    9.
    发明申请
    Method for detecting parfocality of zoom-stereo microscope 有权
    检测放大立体显微镜的方法

    公开(公告)号：US20140029000A1

    公开(公告)日：2014-01-30

    申请号：US13859130

    申请日：2013-04-09

    Applicant: NINGBO UNIVERSITY

    Inventor： Gangyi Jiang ,  Yigang Wang ,  Mei Yu ,  Zongju Peng ,  Feng Shao

    IPC: G01M11/02

    CPC classification number: G01M11/02 ,  G01M11/0264 ,  G01M11/0292 ,  G02B21/241

    Abstract: A method for detecting a parfocality of a zoom-stereo microscope includes: acquiring four highest definitions corresponding to a plurality of images with a cooperation of four definition judging functions, acquiring a relatively clearest position according to the four highest definitions, comparing a definition in the relatively clearest position with a definition in a parfocal position to judge whether the relatively clearest position is the parfocal position, then adjusting a magnification of the zoom-stereo microscope to acquire the parfocal positions at a finite number of the discrete magnifications, and finally fitting a parfocal curve at the continuous magnifications. The method according to the present invention implements a parfocality detection of the stereo microscope automatically and effectively and increases a productivity, and has a high detecting precision. In addition, the method according to the present invention has a good robustness, so that users needn't intervene and adjust frequently.

    Abstract translation: 一种用于检测变焦立体显微镜的分辨率的方法包括：通过四个定义判断功能的协作来获取对应于多个图像的四个最高定义，根据四个最高定义获取相对较清楚的位置，比较 相对较为清晰的位置，其中具有在焦点位置中的定义以判断相对较为清晰的位置是否是对焦位置，然后调整放大立体显微镜的放大倍率以在有限数量的离散放大倍率获取对焦位置，并且最后拟合 连续放大倍数的焦距曲线。 根据本发明的方法，自动而有效地实现了立体显微镜的parfocality检测，提高了生产率，检测精度高。 此外，根据本发明的方法具有良好的鲁棒性，使得用户不需要频繁地进行干预和调整。

    RESOLUTION TEST DEVICE AND METHOD THEREOF
    10.
    发明申请
    RESOLUTION TEST DEVICE AND METHOD THEREOF 有权
    分辨率测试装置及其方法

    公开(公告)号：US20120274788A1

    公开(公告)日：2012-11-01

    申请号：US13197735

    申请日：2011-08-03

    Applicant: Ku-Nien Chang ,  Wen-Chun Chen

    Inventor： Ku-Nien Chang ,  Wen-Chun Chen

    IPC: H04N17/00

    CPC classification number: G01M11/0292

    Abstract: A resolution test device and a method thereof are provided. The resolution test method is adapted for testing a resolution of a camera device. The resolution test method includes providing a graph to the camera device, capturing a test image shot by the camera device, shifting an analyzing window a specific distance in a first direction from a static area to a first area on the test image, analyzing the first area to generate a first high-pass element, shifting the analyzing window back to the static area, shifting the analyzing window the specific distance in a second direction from the static area to a second area on the test image, analyzing the second area to generate a second high-pass element, generating a third high-pass element according to the first and the second high-pass element, and defining the resolution of the camera device according to the third high-pass element.

    Abstract translation: 提供了一种分辨率测试装置及其方法。 分辨率测试方法适用于测试相机设备的分辨率。 分辨率测试方法包括向相机设备提供图形，捕获由相机设备拍摄的测试图像，将分析窗口从第一方向将静态区域的特定距离移动到测试图像上的第一区域，分析第一 区域以产生第一高通元素，将分析窗口移回静态区域，将分析窗口将第二方向上的特定距离从静止区域移动到测试图像上的第二区域，分析第二区域以产生 第二高通元件，根据第一和第二高通元件产生第三高通元素，并且根据第三高通元素定义相机装置的分辨率。

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