SINGLE WAVELENGTH REFLECTION FOR LEADFRAME BRIGHTNESS MEASUREMENT

    公开(公告)号:US20190186897A1

    公开(公告)日:2019-06-20

    申请号:US15848157

    申请日:2017-12-20

    摘要: A method for evaluating a leadframe surface includes positioning a leadframe on a measurement apparatus at a first predetermined distance relative to an end portion of a light source of an optical sensor; irradiating a predetermined area on a surface of the leadframe with light having a single predetermined wavelength from the light source; receiving, with a light receiver of the optical sensor, reflected light from the predetermined area on the surface of the leadframe, and converting the reflected light into an electric signal; determining a reflection intensity value of the predetermined area on the surface of the leadframe based on the electric signal; and calculating a reflection ratio of the predetermined area on the surface of the leadframe based on the reflection intensity value and a predetermined reference reflection intensity value associated with the light source.

    Deformation measuring apparatus and deformation measuring method
    5.
    发明授权
    Deformation measuring apparatus and deformation measuring method 有权
    变形测量仪和变形测量方法

    公开(公告)号:US08797515B2

    公开(公告)日:2014-08-05

    申请号:US13114238

    申请日:2011-05-24

    申请人: Takashi Sugimoto

    发明人: Takashi Sugimoto

    摘要: An apparatus and a method capable of measuring large deformation with a high accuracy and dynamically, using speckle interference, utilizes an optical path where one laser beam out of two laser beams becomes non-collimated light and a plane parallel transparent plate, and can form carrier fringes. More specifically, the transparent plate is arranged on the optical path where the non-collimated light is formed, or is removed from the optical path, or a refractive index, or a thickness of the transparent plate arranged on the optical path, or a tilt angle relative to an optical axis is changed. The phase analysis can be performed from fringe images corresponding to the deformation, by performing repetitively the above-described processing and acquisition of the speckle interference pattern.

    摘要翻译: 能够以高精度和动态地使用斑点干涉来测量大变形的装置和方法利用光路,其中两个激光束中的一个激光束成为非准直光和平面平行的透明板,并且可以形成载体 边缘。 更具体地,透明板被布置在光路上,其中形成非准直光,或者从光路中去除,或者折射率,或布置在光路上的透明板的厚度,或倾斜 相对于光轴的角度发生变化。 相位分析可以从对应于变形的条纹图像中进行,通过重复执行上述的斑点干涉图案的处理和获取。

    LOW COHERENCE INTERFEROMETRIC SYSTEM FOR PHASE STEPPING SHEAROGRAPHY COMBINED WITH 3D PROFILOMETRY
    6.
    发明申请
    LOW COHERENCE INTERFEROMETRIC SYSTEM FOR PHASE STEPPING SHEAROGRAPHY COMBINED WITH 3D PROFILOMETRY 有权
    低相位干涉系统,用于与三维特征相结合的相位步进剪裁

    公开(公告)号:US20130141712A1

    公开(公告)日:2013-06-06

    申请号:US13693674

    申请日:2012-12-04

    IPC分类号: G01B11/16

    摘要: The present invention relates to a portable industrial instrument for performing, in an integrated and two-way manner, an interferometric fringe projection and shearography, on a object to be tested, so that, when the two-way interferometer (1) is associated with the coherent or quasi-coherent projection device (2), the instrument is able to measure the 3D shape of the object by interferometric fringe projection, also known as moiré method, and, when the two-way interferometer (1) is associated with the recording or imaging device (4), the instrument is able to perform shearographic measurements on the object, the direction of the traversing light beam in the interferometer (1) being reversed when shifting from one measurement configuration to the other one.

    摘要翻译: 本发明涉及一种便携式工业仪器,用于以综合和双向的方式在待测物体上进行干涉条纹投射和剪切,从而当双向干涉仪(1)与 相干或准相干投影设备(2),仪器能够通过干涉条纹投影(也称为莫尔法)测量物体的3D形状,并且当双向干涉仪(1)与 记录或成像装置(4),仪器能够对物体执行剪切测量,当从一个测量配置转移到另一个测量配置时,干涉仪(1)中的横穿光束的方向被反转。

    Method and device for the contour and/or deformation measurement, particularly the interference measurement, of an object
    8.
    发明授权
    Method and device for the contour and/or deformation measurement, particularly the interference measurement, of an object 有权
    用于轮廓和/或变形测量的方法和装置,特别是对象的干涉测量

    公开(公告)号:US07456973B2

    公开(公告)日:2008-11-25

    申请号:US10833243

    申请日:2004-04-27

    IPC分类号: G01B9/021

    摘要: The invention serves for the contour measurement and/or deformation measurement of an object, particularly a tire or a structural component of a composite material. The object is irradiated with light, particularly structured light, that is emitted by a radiation source and consists, in particular, of coherent light or partially coherent light, especially laser light. The light reflected by the object is picked up by a camera with an imaging sensor. In order to improve the image quality, a first image is produced with a first adjustment of the camera and/or the radiation source which is adapted to a first image region (13). In addition, a second image is produced with a second adjustment of the camera and/or the radiation source which is adapted to a second image region (12). Both images are combined (FIG. 5).

    摘要翻译: 本发明用于对象,特别是轮胎或复合材料的结构部件的轮廓测量和/或变形测量。 物体被由辐射源发射的特别结构化的光照射,特别是由相干光或部分相干光,特别是激光组成。 被物体反射的光由具有成像传感器的照相机拾取。 为了提高图像质量,通过适应于第一图像区域(13)的照相机和/或辐射源的第一调整产生第一图像。 另外,通过适应于第二图像区域(12)的相机和/或辐射源的第二调整产生第二图像。 两个图像组合(图5)。

    Surface Strain Measuring Device
    9.
    发明申请
    Surface Strain Measuring Device 有权
    表面应变测量装置

    公开(公告)号:US20080055583A1

    公开(公告)日:2008-03-06

    申请号:US11596725

    申请日:2005-11-23

    IPC分类号: G01L1/24 G01B11/16

    CPC分类号: G01B11/162

    摘要: The device enables strains of at least one surface (1) of a sample (2) to be measured versus temperature. Strains in a direction perpendicular to a predetermined plane, for example the plane of the surface (1), are measured by composite images. Strains in said plane are measured by image correlation. The measurements by image correlation and by composite images use a common visible light detection camera (3). The sample (2) is arranged in an enclosure (6) transparent at least locally to visible light (L). At least one infrared emitter (9) enables an infrared light to be created in a spectral band for a large part not detected by the camera (3).

    摘要翻译: 该装置使样品(2)的至少一个表面(1)的应变能够相对于温度进行测量。 通过合成图像来测量与预定平面垂直的方向,例如表面(1)的平面。 通过图像相关度来测量所述平面中的菌株。 通过图像相关和合成图像的测量使用公共的可见光检测相机(3)。 样品(2)布置在至少局部可见光(L)透明的外壳(6)中。 至少一个红外发射器(9)使得能够在光谱带中创建不被照相机(3)检测到的大部分的红外光。

    Interference pattern testing of materials

    公开(公告)号:US20070005269A1

    公开(公告)日:2007-01-04

    申请号:US11173700

    申请日:2005-06-30

    申请人: Michael Mitchell

    发明人: Michael Mitchell

    IPC分类号: G01B5/28

    摘要: Methods, systems, and articles of manufacture consistent with the present invention identify a flaw in a structure by comparing a first interference pattern resulting from a first wave signal and a second wave signal propagating through the structure to a second interference pattern resulting from the first wave signal and the second wave signal propagating through the structure. The second interference pattern is obtained after obtaining the first interference pattern. It is determined whether there is a flaw in the structure by determining whether the first interference pattern deviates from the second interference pattern by a predetermined variance.