公开(公告)号：USRE41682E1

公开(公告)日：2010-09-14

申请号：US12134855

申请日：2008-06-06

申请人： Edward S. Fry ,  George S. Kattawar ,  Deric J. Gray ,  Xianzhen Zhao ,  Zheng Lu

发明人： Edward S. Fry ,  George S. Kattawar ,  Deric J. Gray ,  Xianzhen Zhao ,  Zheng Lu

IPC分类号： G01N21/00

CPC分类号： G01N21/51 ,  G01N21/03 ,  G01N21/532 ,  G01N2201/0614 ,  G01N2201/0634

摘要： An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a transparent material proximate to an inner surface of the second diffusive material that holds an absorptive material. First and second light detectors measure light intensities in the first and second diffusive materials cavity and the transparent material respectively. An absorption coefficient for the absorptive material may be determined based on the first and second light intensities measured when the cavity is illuminated by a light source.

摘要翻译： 用于测量吸收系数的装置包括第一漫射材料，第一漫射材料内部的第一漫射材料，其通过空腔与第一漫射材料分离，以及靠近第二漫射材料的内表面的透明材料，其保持吸收 材料。 第一和第二光检测器分别测量第一和第二扩散材料腔和透明材料中的光强度。 吸收材料的吸收系数可以基于当腔被光源照射时测量的第一和第二光强度来确定。

公开(公告)号：US07057730B2

公开(公告)日：2006-06-06

申请号：US10715336

申请日：2003-11-17

申请人： Edward S. Fry ,  George W. Kattawar ,  Deric J. Gray ,  Xianzhen Zhao ,  Zheng Lu

发明人： Edward S. Fry ,  George W. Kattawar ,  Deric J. Gray ,  Xianzhen Zhao ,  Zheng Lu

IPC分类号： G01N21/00

CPC分类号： G01N21/51 ,  G01N21/03 ,  G01N21/532 ,  G01N2201/0614 ,  G01N2201/0634

摘要： An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a transparent material proximate to an inner surface of the second diffusive material that holds an absorptive material. First and second light detectors measure light intensities in the first and second diffusive materials respectively. An absorption coefficient for the absorptive material may be determined based on the first and second light intensities measured when the cavity is illuminated by a light source.

摘要翻译： 用于测量吸收系数的装置包括第一漫射材料，第一漫射材料内部的第一漫射材料，其通过空腔与第一漫射材料分离，以及靠近第二漫射材料的内表面的透明材料，其保持吸收 材料。 第一和第二光检测器分别测量第一和第二漫射材料中的光强度。 吸收材料的吸收系数可以基于当腔被光源照射时测量的第一和第二光强度来确定。

公开(公告)号：US20110310242A1

公开(公告)日：2011-12-22

申请号：US13171105

申请日：2011-06-28

申请人： Klaus-Georg Knupfer ,  Joachim Reimann ,  Volker Huss ,  Volker Schöllkopf

发明人： Klaus-Georg Knupfer ,  Joachim Reimann ,  Volker Huss ,  Volker Schöllkopf

IPC分类号： H04N7/18

CPC分类号： G01N21/8806 ,  G01N21/15 ,  G01N21/9515 ,  G01N2021/151 ,  G01N2021/1772 ,  G01N2021/1774 ,  G01N2021/8812 ,  G01N2021/8816 ,  G01N2021/8835 ,  G01N2201/0245 ,  G01N2201/0614 ,  G01N2201/0626 ,  G01N2201/0634 ,  G01N2201/0694

摘要： An apparatus for optically inspecting an at least partially reflecting surface of an object includes first and second transverse carriers (12, 14) defining respective substantially circular segment-shaped cutouts (32). The transverse carriers (12, 14) are disposed at a longitudinal distance (D) from one another and the longitudinal distance (D) defines a longitudinal direction (17). A plurality of longitudinal members are configured to hold the first and second transverse carriers at the longitudinal distance (D). The longitudinal members are arranged at a defined radial distance to the circular segment-shaped cutouts. A translucent diffusing screen is held in the circular segment-shaped cutouts by the transverse carriers to form a tunnel-shaped inspection space. A multiplicity of light sources are arranged outside of the tunnel-shaped inspection space behind the diffusing screen. The light sources are configured to be controlled individually or in small groups to generate variable light-dark patterns on the diffusing screen. A workpiece receptacle is configured for accommodating the object in the tunnel-shaped inspection space. At least one camera is directed into the tunnel-shaped inspection space. An evaluation and control unit is configured to control the light sources and the camera to generate various light-dark patterns on the diffusing screen and to record and evaluate a plurality of images of the object in dependence on the light-dark patterns.

摘要翻译： 用于光学检查物体的至少部分反射表面的装置包括限定相应的基本上圆形的段状切口（32）的第一和第二横向载体（12,14）。 横向载体（12,14）以纵向距离（D）彼此设置，并且纵向距离（D）限定纵向方向（17）。 多个纵向构件构造成以纵向距离（D）保持第一和第二横向载体。 纵向构件以规定的径向距离布置成圆形段状切口。 半透明的漫射屏幕由横向载体保持在圆形扇形切口中，以形成隧道形检查空间。 多个光源布置在漫射屏幕后面的隧道形检查空间的外侧。 光源被配置为单独地或以小组来控制，以在漫射屏幕上产生可变的亮暗图案。 工件容器构造成用于将物体容纳在隧道形状的检查空间中。 至少一个相机被引导到隧道形状的检查空间中。 评估和控制单元被配置为控制光源和相机以在扩散屏幕上产生各种亮暗图案，并且根据暗色图案来记录和评估对象的多个图像。

公开(公告)号：US20040141179A1

公开(公告)日：2004-07-22

申请号：US10715336

申请日：2003-11-17

发明人： Edward S. Fry ,  George W. Kattawar ,  Deric J. Gray ,  Xianzhen Zhao ,  Zheng Lu

IPC分类号： G01N021/59

CPC分类号： G01N21/51 ,  G01N21/03 ,  G01N21/532 ,  G01N2201/0614 ,  G01N2201/0634

摘要： An apparatus for measuring an absorption coefficient includes a first diffusive material, a second diffusive material inside the first diffusive material separated from the first diffusive material by a cavity, and a transparent material proximate to an inner surface of the second diffusive material that holds an absorptive material. First and second light detectors measure light intensities in the first and second diffusive materials respectively. An absorption coefficient for the absorptive material may be determined based on the first and second light intensities measured when the cavity is illuminated by a light source.

摘要翻译： 用于测量吸收系数的装置包括第一漫射材料，第一漫射材料内部的第一漫射材料，其通过空腔与第一漫射材料分离，以及靠近第二漫射材料的内表面的透明材料，其保持吸收 材料。 第一和第二光检测器分别测量第一和第二漫射材料中的光强度。 吸收材料的吸收系数可以基于当腔被光源照射时测量的第一和第二光强度来确定。

公开(公告)号：US08605146B2

公开(公告)日：2013-12-10

申请号：US13171105

申请日：2011-06-28

申请人： Klaus-Georg Knupfer ,  Joachim Reimann ,  Volker Huss ,  Volker Schöllkopf

发明人： Klaus-Georg Knupfer ,  Joachim Reimann ,  Volker Huss ,  Volker Schöllkopf

IPC分类号： H04N7/18

CPC分类号： G01N21/8806 ,  G01N21/15 ,  G01N21/9515 ,  G01N2021/151 ,  G01N2021/1772 ,  G01N2021/1774 ,  G01N2021/8812 ,  G01N2021/8816 ,  G01N2021/8835 ,  G01N2201/0245 ,  G01N2201/0614 ,  G01N2201/0626 ,  G01N2201/0634 ,  G01N2201/0694

摘要： An apparatus for optically inspecting an at least partially reflecting surface of an object includes first and second transverse carriers (12, 14) defining respective substantially circular segment-shaped cutouts (32). The transverse carriers (12, 14) are disposed at a longitudinal distance (D) from one another and the longitudinal distance (D) defines a longitudinal direction (17). A plurality of longitudinal members are configured to hold the first and second transverse carriers at the longitudinal distance (D). The longitudinal members are arranged at a defined radial distance to the circular segment-shaped cutouts. A translucent diffusing screen is held in the circular segment-shaped cutouts by the transverse carriers to form a tunnel-shaped inspection space. A multiplicity of light sources are arranged outside of the tunnel-shaped inspection space behind the diffusing screen. The light sources are configured to be controlled individually or in small groups to generate variable light-dark patterns on the diffusing screen. A workpiece receptacle is configured for accommodating the object in the tunnel-shaped inspection space. At least one camera is directed into the tunnel-shaped inspection space. An evaluation and control unit is configured to control the light sources and the camera to generate various light-dark patterns on the diffusing screen and to record and evaluate a plurality of images of the object in dependence on the light-dark patterns.

摘要翻译： 用于光学检查物体的至少部分反射表面的装置包括限定相应的基本上圆形的段状切口（32）的第一和第二横向载体（12,14）。 横向载体（12,14）以纵向距离（D）彼此设置，并且纵向距离（D）限定纵向方向（17）。 多个纵向构件构造成以纵向距离（D）保持第一和第二横向载体。 纵向构件布置在与圆形扇形切口的限定的径向距离处。 半透明的漫射屏幕由横向载体保持在圆形扇形切口中，以形成隧道形检查空间。 多个光源布置在漫射屏幕后面的隧道形检查空间的外侧。 光源被配置为单独地或以小组来控制，以在漫射屏幕上产生可变的亮暗图案。 工件容器构造成用于将物体容纳在隧道形状的检查空间中。 至少一个相机被引导到隧道形状的检查空间中。 评估和控制单元被配置为控制光源和相机以在扩散屏幕上产生各种亮暗图案，并且根据暗色图案来记录和评估对象的多个图像。

公开(公告)号：US5012116A

公开(公告)日：1991-04-30

申请号：US422102

申请日：1989-10-12

申请人： John P. Russell

发明人： John P. Russell

IPC分类号： G01M13/04 ,  G01N21/88 ,  G01N21/95 ,  G06T1/00 ,  H04N7/18

CPC分类号： G01N21/951 ,  G01N2021/4752 ,  G01N2021/8887 ,  G01N2201/0614

摘要： By deriving the image formed by light specularly-reflected from substantially all of the convex (mirror-like) spherical surface of a bearing ball under test that is being illuminated with diffuse light, any defect in the bearing ball under test reveals itself as a light-contrast pattern in the otherwise substantially uniform diffuse background of the image.