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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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公开(公告)号：US20150002934A1
公开(公告)日：2015-01-01
申请号：US14377288
申请日：2013-02-07
CPC分类号： G02B27/286 , G02B5/001 , G02B5/3025 , G02B27/0927 , G02B27/0977 , G02B27/0983
摘要： An axially symmetric polarization conversion element that converts incident light into an axially symmetric polarized beam includes a reflection section having a shape obtained by rotating the cross section of a Fresnel rhomb wave plate along the direction of an optical axis around an axis that is parallel to the optical axis. The axially symmetric polarization conversion element converts the incident light into an axially symmetric polarized beam by utilizing two Fresnel reflections by the reflection section.
摘要翻译： 将入射光转换为轴对称的偏振光束的轴对称偏振转换元件包括反射部分，该反射部分具有通过沿着光轴的方向旋转菲涅尔菱形波片的横截面而获得的形状，该光轴围绕平行于 光轴。 轴对称偏振转换元件通过利用反射部分的两个菲涅耳反射将入射光转换成轴对称的偏振光束。
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公开(公告)号：US09612449B2
公开(公告)日：2017-04-04
申请号：US14377288
申请日：2013-02-07
CPC分类号： G02B27/286 , G02B5/001 , G02B5/3025 , G02B27/0927 , G02B27/0977 , G02B27/0983
摘要： An axially symmetric polarization conversion element that converts incident light into an axially symmetric polarized beam includes a reflection section having a shape obtained by rotating the cross section of a Fresnel rhomb wave plate along the direction of an optical axis around an axis that is parallel to the optical axis. The axially symmetric polarization conversion element converts the incident light into an axially symmetric polarized beam by utilizing two Fresnel reflections by the reflection section.
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