Visual Inspection Device and Visual Inspection Method

    公开(公告)号:US20170328838A1

    公开(公告)日:2017-11-16

    申请号:US15499123

    申请日:2017-04-27

    申请人: JTEKT CORPORATION

    发明人: Jiro UMEHARA

    IPC分类号: G01N21/88

    摘要: A visual inspection device is an inspection device using an image obtained by shooting an inspection surface of an object to be inspected with a camera disposed so as to face the inspection surface. The object to be inspected is a rolling bearing and the inspection surface is a surface included in an outer ring of the rolling bearing. A lighting device emits light from a light source as diffused light to the inspection surface in a direction different from a direction in which the camera shoots the inspection surface, and the camera shoots the inspection surface irradiated with the diffused light.

    Detection system and method of detecting corrosion under an outer protective layer
    4.
    发明授权
    Detection system and method of detecting corrosion under an outer protective layer 有权
    检测系统和检测外部保护层腐蚀的方法

    公开(公告)号:US09518918B2

    公开(公告)日:2016-12-13

    申请号:US14770159

    申请日:2013-09-23

    摘要: Incoherent millimeter wave, sub-millimeter wave and terahertz test signals are used to probe metal substrates that are covered by a protective coating or outer layer, such as paint or thermal insulation, obscuring direct assessment of the substrate. The incoherent test signals, which may be from a naturally occurring passive source (such as the sky) and/or from an active noise source, provide signal dispersion and angular variation of the test signals with respect to angular incidence to the substrate. Illumination of the substrate permits differentiation between un-corroded and corroded sections of the sample because reflectivity (and emissivity) from a metal-based substrate is heavily dependent on the surface resistivity which in turn is dependent on the corroded state. A detector/camera is arranged to pick up reflections from the substrate and an associated control system identifies regions of the sample that reflect the test signal illumination differently or otherwise indicate a variation from a reference value. The differences therefore signify the presence or lack of corrosion or, indeed, the presence of other abnormalities within or on the substrate.

    摘要翻译: 不相干毫米波,亚毫米波和太赫兹测试信号用于探测由保护涂层或外层覆盖的金属基底,例如油漆或隔热层,掩盖了对基底的直接评估。 可能来自天然存在的被动源(例如天空)和/或来自有源噪声源的非相干测试信号相对于基底的角入射提供了测试信号的信号色散和角度变化。 衬底的照明允许在样品的未腐蚀和腐蚀部分之间进行区分,因为来自金属基底层的反射率(和发射率)严重依赖于表面电阻率,反过来依赖于腐蚀状态。 检测器/照相机布置成从衬底拾取反射,并且相关联的控制系统识别反映测试信号照明的区域的区域不同或以其他方式指示与参考值的变化。 因此,这些差异意味着存在或缺乏腐蚀,或者确实存在底物内或基底上的其他异常现象。

    Illumination system with illumination shield
    5.
    发明授权
    Illumination system with illumination shield 有权
    带照明屏的照明系统

    公开(公告)号:US08746924B2

    公开(公告)日:2014-06-10

    申请号:US13416770

    申请日:2012-03-09

    IPC分类号: F21V5/00

    CPC分类号: G01N21/8806 G01N2021/8812

    摘要: An apparatus for an illumination system including a concentric light source providing a quantity of light; a diffusion shield to diffuse the light and produce a diffused illumination where the diffused illumination is provided to a component positioned in an interior portion of the diffusion shield; a support structure where the diffusion shield is mechanically coupled with the support structure at a first base portion of the diffusion shield and where the concentric light sources are mechanically coupled with the support structure and positioned radially outward from the first base portion of the diffusion shield; and a harvesting shield where the harvesting shield is mechanically coupled with the support structure and positioned radially outward from the concentric light sources and where the harvesting shield redirects at least a portion of the quantity of light from the concentric light sources towards the diffusion shield.

    摘要翻译: 一种照明系统的装置,包括提供一定量的光的同心光源; 扩散屏蔽,用于漫射光并产生扩散照明,其中扩散照明被提供给位于扩散屏蔽的内部中的部件; 支撑结构,其中所述扩散屏蔽在所述扩散屏蔽的第一基部处与所述支撑结构机械耦合,并且所述同心光源与所述支撑结构机械耦合并且从所述扩散屏蔽的所述第一基部径向向外定位; 收割罩与采收屏蔽机构与支撑结构机械耦合并且从同心光源径向向外定位,并且收集屏蔽将至少一部分来自同心光源的光重新定向到扩散屏蔽。

    Appearance inspection apparatus and method of image capturing using the same
    10.
    发明申请
    Appearance inspection apparatus and method of image capturing using the same 有权
    外观检查装置及使用其的图像拍摄方法

    公开(公告)号:US20040218040A1

    公开(公告)日:2004-11-04

    申请号:US10764098

    申请日:2004-01-23

    发明人: Yoshihiro Akiyama

    IPC分类号: H04N007/18 H04N009/47

    摘要: The present invention is an appearance inspection apparatus and method utilizing multiple light sources in a lighting unit 30 to alternately irradiate, line by line, side light from a side light source and slit light from a slit light source onto board 1 to be inspected. A correction value memory unit stores digital correction values required for correcting shadings for the side light source and the slit light source and an analysis unit utilizes these digital correction values to correct shadings on the image data. A highly accurate image is thus obtained.

    摘要翻译: 本发明是一种在照明单元30中利用多个光源将来自侧光源的侧光和来自狭缝光源的狭缝光交替地照射到待检查的基板1上的外观检查装置和方法。 校正值存储单元存储用于校正侧光源和狭缝光源的阴影所需的数字校正值,分析单元利用这些数字校正值来校正图像数据上的阴影。 因此获得高精度的图像。