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    • 100. 发明专利
    • Illumination apparatus for inspection and illumination method for inspection
    • 用于检查和照明的检查方法的照明装置
    • JP2013120099A
    • 2013-06-17
    • JP2011267321
    • 2011-12-06
    • Ccs Incシーシーエス株式会社
    • MASUMURA SHIGEKI
    • G01N21/84G01B11/30
    • G01B11/30G01N21/8806G01N2021/8809G01N2021/8835G01N2201/068
    • PROBLEM TO BE SOLVED: To provide an illumination apparatus for inspection and an illumination method for inspection which can irradiate an object with inspection light so that a difference such as a light-dark difference appears between a defect and a normal portion.SOLUTION: The illumination apparatus for inspection includes: a surface light source 1 for emitting inspection light; a lens 2 provided on an optical axis LX of the inspection light emitted from the surface light source 1 between an inspection object W and the surface light source 1; and a first diaphragm 31 provided between the surface light source 1 and the lens 2 or between the lens 2 and the inspection object W. The positions of the surface light source 1 and the lens 2 against the inspection object W are set so that an image forming surface IM on which light from the surface light source 1 is image-formed is formed in the vicinity of the inspection object W. The position of the first diaphragm 31 against the lens 1 is set so that a center axis of an irradiation solid angle regulated by the inspection light made incident on an outer edge part of the image forming surface IM becomes parallel with the optical axis LX or deviated from the optical axis and inclined only by a predetermined angle.
    • 要解决的问题:提供一种用于检查的照明装置和用于检查的照明方法,其可以用检查光照射物体,使得在缺陷和法线部分之间出现诸如亮暗差异的差异。 解决方案:用于检查的照明装置包括:用于发射检查光的表面光源1; 在检查对象物W与面光源1之间从表面光源1发射的检查光的光轴LX上设置的透镜2; 以及设置在表面光源1和透镜2之间或透镜2与检查对象W之间的第一光阑31.面光源1和透镜2对检查对象W的位置被设定为使得图像 形成表面光源1成像的光的成膜面IM在检查对象W的附近。第一光阑31抵靠透镜1的位置被设定为使照射立体角的中心轴 由入射在图像形成面IM的外缘部分上的检查光调节的光线与光轴LX平行或偏离光轴并且仅倾斜预定角度。 版权所有(C)2013,JPO&INPIT