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1. 发明授权

US09348210B2 Projection apparatus and transparent screen for it 有权
标题翻译：投影仪和透明屏幕
公开(公告)号：US09348210B2
公开(公告)日：2016-05-24
申请号：US14065669
申请日：2013-10-29
申请人： Hitachi Maxell, Ltd.
发明人： Koji Hirata , Masahiko Yatsu , Hidehiro Ikeda
IPC分类号： G03B21/26 , G03B21/62 , G02B13/18 , H04N7/14 , G03B21/10
CPC分类号： G03B21/62 , G02B13/18 , G03B21/10 , H04N7/142
摘要： There is provided a projection apparatus using an oblique projection optical system, which generates little reflection loss by providing a linear Fresnel lens at an incident surface in the case where the apparatus is used as a linear system, wherein said linear Fresnel lens makes total reflection of image light, and is capable of obtaining total surface property with good brightness in a region with small incident angle onto a screen, by using a total reflection Fresnel lens and a refraction Fresnel lens in combination. In addition, total surface property with further good brightness can be obtained by using a plurality of projection image display apparatuses in the same projection apparatus.
摘要翻译：提供了一种使用倾斜投影光学系统的投影装置，其在将该装置用作线性系统的情况下在入射表面处设置线性菲涅耳透镜而产生很小的反射损失，其中所述线性菲涅耳透镜全部反射并且通过组合使用全反射菲涅耳透镜和折射菲涅尔透镜，能够在具有小的入射角的区域中以良好的亮度获得在屏幕上的总表面性质。此外，通过在同一投影装置中使用多个投影图像显示装置，可以获得更高亮度的总表面性质。

2. 发明授权

US09256060B2 Pinhole array and display device using same 有权
标题翻译：针孔阵列和显示装置使用相同
公开(公告)号：US09256060B2
公开(公告)日：2016-02-09
申请号：US14406139
申请日：2013-02-22
申请人： HITACHI MAXELL, LTD.
发明人： Tomoki Kobori , Yoshiho Seo , Koji Hirata , Hidehiro Ikeda , Satoshi Ouchi
IPC分类号： G02B5/126 , G02B17/00 , G02B17/06 , G02B17/08 , G02B27/22
CPC分类号： G02B17/002 , G02B17/008 , G02B17/061 , G02B17/0808 , G02B27/2292
摘要： Two pieces of elliptic semi-sphere surfaces, each forming a pinhole at the zenith thereof and also forming a reflection mirror on an inside thereof are stuck onto each other, with facing the interior surfaces thereof, respectively. A light ray entering therein from one of the pinholes, after being reflected between the elliptic semi-sphere surfaces facing to each other, emits from the pinhole on opposite side at an angle plane symmetric to the incident angle. Disposing the elliptic semi-sphere surfaces facing to each other, aligning on a plane, by plural numbers thereof, there is built up a pinhole array. Plural numbers of light rays reflecting on and/or emitting from a display object, which is disposed on one side of the pinhole array, after passing through the plural numbers of pinholes of the pinhole array, form an image at a position plane symmetric thereto, on the opposite side of the pinhole array.
摘要翻译：分别在其顶部形成针孔并且在其内部形成反射镜的两片椭圆形半球面分别贴在彼此的内表面上。从一个针孔入射到其中的光线在彼此面对的椭圆形半球面之间被反射之后，以与入射角对称的角度平面的相对侧的针孔发射。将椭圆形半球面相对配置，在平面上对准多个数目，构成针孔阵列。在穿过针孔阵列的多个针孔之后，设置在针孔阵列的一侧上的和/或从显示对象发射的多个光线在与其对准的位置平面处形成图像，在针孔阵列的相对侧。

3. 发明申请

US20150153551A1 PINHOLE ARRAY AND DISPLAY DEVICE USING SAME 有权
标题翻译： PINHOLE阵列和显示设备使用相同
公开(公告)号：US20150153551A1
公开(公告)日：2015-06-04
申请号：US14406139
申请日：2013-02-22
申请人： HITACHI MAXELL, LTD.
发明人： Tomoki Kobori , Yoshiho Seo , Koji Hirata , Hidehiro Ikeda , Satoshi Ouchi
IPC分类号： G02B17/00 , G02B27/22
CPC分类号： G02B17/002 , G02B17/008 , G02B17/061 , G02B17/0808 , G02B27/2292
摘要： Two pieces of elliptic semi-sphere surfaces, each forming a pinhole at the zenith thereof and also forming a reflection mirror on an inside thereof are stuck onto each other, with facing the interior surfaces thereof, respectively. A light ray entering therein from one of the pinholes, after being reflected between the elliptic semi-sphere surfaces facing to each other, emits from the pinhole on opposite side at an angle plane symmetric to the incident angle. Disposing the elliptic semi-sphere surfaces facing to each other, aligning on a plane, by plural numbers thereof, there is built up a pinhole array. Plural numbers of light rays reflecting on and/or emitting from a display object, which is disposed on one side of the pinhole array, after passing through the plural numbers of pinholes of the pinhole array, form an image at a position plane symmetric thereto, on the opposite side of the pinhole array.
摘要翻译：分别在其顶部形成针孔并且在其内部形成反射镜的两片椭圆形半球面分别贴在彼此的内表面上。从一个针孔入射到其中的光线在彼此面对的椭圆形半球面之间被反射之后，以与入射角对称的角度平面的相对侧的针孔发射。将椭圆形半球面相对配置，在平面上对准多个数目，构成针孔阵列。在穿过针孔阵列的多个针孔之后，设置在针孔阵列的一侧上的和/或从显示对象发射的多个光线在与其对准的位置平面处形成图像，在针孔阵列的相对侧。

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