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公开(公告)号：US10746664B2
公开(公告)日：2020-08-18
申请号：US16049294
申请日：2018-07-30
发明人： Shunsuke Sasaki , Ichiro Suehiro , Shuhei Shibata , David Ignacio Serrano Garcia , Yukitoshi Otani
IPC分类号： G01N21/88 , G01N21/19 , G01N21/958 , G01N21/84 , G02B5/30 , G01N21/21 , G01N21/896 , G01N21/23
摘要： Provided are a polarizing film imaging apparatus, a polarizing film inspection apparatus including the imaging apparatus, and a polarizing film inspection method using the imaging apparatus. The imaging apparatus includes: a light source that is configured to emit light toward a polarizing film to be inspected; an imaging unit that is arranged on an optical axis of the light source and on an opposite side to the light source with the polarizing film therebetween; and at least one of a circular polarizing plate arranged between the light source and the polarizing film, and a wavelength plate arranged between the polarizing film and the imaging unit.
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2.发明申请公开(公告)号：US20190033226A1
公开(公告)日：2019-01-31
申请号：US16049294
申请日：2018-07-30
发明人： Shunsuke Sasaki , Ichiro Suehiro , Shuhei Shibata , David Ignacio Serrano Garcia , Yukitoshi Otani
IPC分类号： G01N21/88 , G01N21/19 , G01N21/84 , G01N21/958
CPC分类号： G01N21/8806 , G01N21/19 , G01N21/21 , G01N21/23 , G01N21/8422 , G01N21/896 , G01N21/958 , G01N2021/216 , G01N2021/8848 , G02B5/3025 , G02B5/3083
摘要： Provided are a polarizing film imaging apparatus, a polarizing film inspection apparatus including the imaging apparatus, and a polarizing film inspection method using the imaging apparatus. The imaging apparatus includes: a light source that is configured to emit light toward a polarizing film to be inspected; an imaging unit that is arranged on an optical axis of the light source and on an opposite side to the light source with the polarizing film therebetween; and at least one of a circular polarizing plate arranged between the light source and the polarizing film, and a wavelength plate arranged between the polarizing film and the imaging unit.
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