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    • 4. 发明授权
    • Display optical system, image display apparatus, image taking optical system, and image taking apparatus
    • 显示光学系统,图像显示装置,摄像光学系统和摄像装置
    • US07446943B2
    • 2008-11-04
    • US11335566
    • 2006-01-20
    • Akinari TakagiShoichi YamazakiHideki MorishimaKazutaka InoguchiMotomi Matsunaga
    • Akinari TakagiShoichi YamazakiHideki MorishimaKazutaka InoguchiMotomi Matsunaga
    • G02B27/14
    • G02B17/086G02B17/004G02B17/0848G02B17/0856G02B27/0172
    • A display optical system for guiding light from an original picture to an eye of an observer or a surface to have an image projected thereon is provided with a first optical system and a second optical system. The first optical system is provided with a first surface that is formed on a transparent body and has at least a reflecting action, a second surface for reflecting light reflected on the first surface toward the first surface again, and a third surface that is formed on the transparent body in the same manner as the first surface and transmits the light from the original picture. The light transmitted through the third surface travels toward the first surface and reflected for the first time on the first surface. In addition, a principal ray at central angle of view to be reflected for the last time on the first surface is reflected and travels to a side opposite to a side of the first reflection on the first surface with respect to a normal line of a surface on a hit point thereof. With such a structure, a small display optical system that is capable of widening an angle of view is realized.
    • 用于将来自原始图像的光引导到观察者或表面的眼睛以使投影在其上的图像的显示光学系统设置有第一光学系统和第二光学系统。 第一光学系统设置有形成在透明体上并具有至少反射作用的第一表面,用于将在第一表面上反射的光再次反射到第一表面的第二表面和形成在第一表面上的第三表面 透明体以与第一表面相同的方式透射来自原始图像的光。 透过第三表面的光朝向第一表面行进并在第一表面上首次反射。 此外,在第一表面上最后反射的中心视角的主光线相对于表面的法线被反射并行进到与第一表面上的第一反射的一侧相反的一侧 在它的命中点。 通过这样的结构,能够实现能够扩大视角的小型显示光学系统。
    • 6. 发明申请
    • Display optical system, image display apparatus, imae taking optical system, and image taking apparatus
    • 显示光学系统,图像显示装置,拍摄光学系统和摄像装置
    • US20060126188A1
    • 2006-06-15
    • US11335566
    • 2006-01-20
    • Akinari TakagiShoichi YamazakiHideki MorishimaKazutaka InoguchiMotomi Matsunaga
    • Akinari TakagiShoichi YamazakiHideki MorishimaKazutaka InoguchiMotomi Matsunaga
    • G02B27/14
    • G02B17/086G02B17/004G02B17/0848G02B17/0856G02B27/0172
    • A display optical system for guiding light from an original picture to an eye of an observer or a surface to have an image projected thereon is provided with a first optical system and a second optical system. The first optical system is provided with a first surface that is formed on a transparent body and has at least a reflecting action, a second surface for reflecting light reflected on the first surface toward the first surface again, and a third surface that is formed on the transparent body in the same manner as the first surface and transmits the light from the original picture. The light transmitted through the third surface travels toward the first surface and reflected for the first time on the first surface. In addition, a principal ray at central angle of view to be reflected for the last time on the first surface is reflected and travels to a side opposite to a side of the first reflection on the first surface with respect to a normal line of a surface on a hit point thereof. With such a structure, a small display optical system that is capable of widening an angle of view is realized.
    • 用于将来自原始图像的光引导到观察者或表面的眼睛以使投影在其上的图像的显示光学系统设置有第一光学系统和第二光学系统。 第一光学系统设置有形成在透明体上并具有至少反射作用的第一表面,用于将在第一表面上反射的光再次反射到第一表面的第二表面和形成在第一表面上的第三表面 透明体以与第一表面相同的方式透射来自原始图像的光。 透过第三表面的光朝向第一表面行进并在第一表面上首次反射。 此外,在第一表面上最后反射的中心视角的主光线相对于表面的法线被反射并行进到与第一表面上的第一反射的一侧相反的一侧 在它的命中点。 通过这样的结构,能够实现能够扩大视角的小型显示光学系统。
    • 8. 发明授权
    • Waveguide and device including the same
    • 波导和设备包括相同
    • US07751669B2
    • 2010-07-06
    • US11558563
    • 2006-11-10
    • Kiyokatsu IkemotoAkinari TakagiHikaru HoshiKazuya NobayashiAihiko Numata
    • Kiyokatsu IkemotoAkinari TakagiHikaru HoshiKazuya NobayashiAihiko Numata
    • G02B6/10G02B6/12G02B6/26
    • G02B6/1225B82Y20/00
    • At least one exemplary embodiment is directed to a waveguide, which includes a three-dimensional photonic crystal including a first linear defect and a second linear defect. The first linear defect is disposed at part of columnar structures and is formed of a medium different from the columnar structures. The second linear defect is disposed at part of columnar structures extending in the longitudinal direction of the first linear defect and is formed of a medium having a refractive index different from that of the medium used for the columnar structures. The second linear defect is separated from the first linear defect by a distance of at least 0.5 times the out-of-plane lattice period of the three-dimensional photonic crystal in a direction in which layers including the columnar structures are stacked.
    • 至少一个示例性实施例涉及一种波导,其包括包括第一线性缺陷和第二线性缺陷的三维光子晶体。 第一线性缺陷设置在柱状结构的一部分,并且由不同于柱状结构的介质形成。 第二线性缺陷设置在沿着第一线性缺陷的纵向方向延伸的柱状结构的一部分处,并且由具有与用于柱状结构的介质的折射率不同的介质形成。 将第二线性缺陷与包含柱状结构的层的层叠方向上的三维光子晶体的面外晶格周期的至少0.5倍的距离与第一线性缺陷分开。
    • 9. 发明申请
    • THREE-DIMENSIONAL PERIODIC STRUCTURE INCLUDING ANTI-REFLECTION STRUCTURE AND LIGHT-EMITTING DEVICE
    • 三维周期结构,包括防反射结构和发光装置
    • US20090208166A1
    • 2009-08-20
    • US12368728
    • 2009-02-10
    • Kiyokatsu IkemotoAkinari Takagi
    • Kiyokatsu IkemotoAkinari Takagi
    • G02B6/12G02B6/26
    • G02B6/1225B82Y20/00G02B6/14
    • The three-dimensional structure includes a first waveguide (line defect) in a three-dimensional photonic crystal formed by periodically arranging first and second media, which causes light to propagate therein in a first guide mode, a second waveguide (line defect) in the three-dimensional photonic crystal, which causes light to propagate therein in a second guide mode, reflective portions provided in the first and second waveguides to reflect parts of the lights propagating in the first and second waveguides, and a first region connected to the second waveguide so as to cause at least part of the light that has propagated in the second waveguide via the reflective portion to propagate therein in a third guide mode. The reflective portions are formed of media having refractive indexes different from those the first and second waveguides. Each reflective portion has a homogeneous refractive index distribution in an entire section orthogonal to a waveguide-extending direction.
    • 三维结构包括通过周期性地布置第一和第二介质而形成的三维光子晶体中的第一波导(线缺陷),其使光在第一引导模式中传播,第二波导(线缺陷) 三维光子晶体,其使光在第二引导模式中传播;反射部,设置在第一和第二波导中,以反射在第一和第二波导中传播的光的一部分,以及连接到第二波导的第一区域 以便使得经由反射部分在第二波导中传播的至少一部分光在第三引导模式中传播。 反射部分由具有不同于第一和第二波导的折射率的介质形成。 每个反射部分在与波导延伸方向正交的整个部分中具有均匀的折射率分布。