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    • 1. 发明授权
    • Optical switch and optical disk drive
    • 光开关和光盘驱动器
    • US06473542B1
    • 2002-10-29
    • US09398262
    • 1999-09-17
    • Masahiro YamadaKiyoshi Osato
    • Masahiro YamadaKiyoshi Osato
    • G02B642
    • G02F1/0508G02B2006/1204G02F1/2955G02F1/31G02F2001/311G02F2201/16G02F2202/07
    • Disclosed herein is an optical switch including: a dielectric substrate having a pair of main surfaces opposed to each other; and a pair of electrodes formed on the main surfaces of the dielectric substrate; wherein a direction of emergence of a light beam propagating in the dielectric substrate is controlled according to an electric field applied from the electrodes to the dielectric substrate; the dielectric substrate being formed with a periodic structure of polarization inverted domains each having a given shape; the light beam being incident on domain walls of the polarization inverted domains; the electrode formed on at least one of the main surfaces being separated into at least first and second electrodes in a direction of propagation of the light beam.
    • 这里公开了一种光开关,包括:具有彼此相对的一对主表面的电介质基板; 以及形成在电介质基板的主表面上的一对电极; 其中根据从电极施加到电介质基板的电场来控制在电介质基板中传播的光束的出射方向; 电介质基板形成为具有各自具有给定形状的偏振反转畴的周期性结构; 光束入射到偏振反转域的畴壁上; 形成在至少一个主表面上的电极在光束的传播方向上分成至少第一和第二电极。
    • 8. 发明授权
    • Stereoscopic imaging apparatus
    • 立体成像装置
    • US09110367B2
    • 2015-08-18
    • US13287712
    • 2011-11-02
    • Masahiro YamadaSunao Aoki
    • Masahiro YamadaSunao Aoki
    • G02B21/22G03B35/08G02B27/22H04N13/02
    • G02B23/2415A61B1/00188A61B1/00193G02B21/22G02B27/2214G03B35/08G03B35/10H04N13/239
    • A stereoscopic imaging apparatus includes: an objective optical system having a function of imaging a subject as a real image or a virtual image; and plural imaging optical systems that image plural subject luminous fluxes output from different paths of the objective optical system again as parallax images using plural independent optical systems, wherein, in the case where a focal length value when the objective optical system images the subject as the real image is positive and the focal length value when the objective optical system images the subject as the virtual image is negative, a focal distance (f) of the objective optical system and a distance (L) from a rear principal point of the objective optical system to a front principal point of the imaging optical system is set to values that satisfy the following equation |f/(L−f)|≦1.
    • 立体成像装置包括:物镜光学系统,其具有将被摄体成像为实像或虚像; 以及多个成像光学系统,其将从物镜光学系统的不同路径输出的多个被摄体光通量再次用作使用多个独立光学系统的视差图像,其中,在物镜光学系统将被摄体成像为 物镜光学系统的焦点距离(f)和物镜光学系统的后方主点的距离(L)在物镜光学系统对被摄体进行图像处理时的焦距值为正, 系统到成像光学系统的前主要点被设置为满足以下等式| f /(​​L-f)|≦̸ 1的值。
    • 9. 发明授权
    • Stereoscopic image capturing apparatus
    • 立体摄像装置
    • US09025008B2
    • 2015-05-05
    • US13399934
    • 2012-02-17
    • Sunao AokiMasahiro Yamada
    • Sunao AokiMasahiro Yamada
    • H04N13/02G03B35/10
    • H04N13/296G03B35/10H04N13/239H04N13/243
    • A stereoscopic image capturing apparatus includes an objective optical system that has a function of forming a subject as a real image or an imaginary image, a plurality of image forming optical systems that respectively form a plurality of subject light beams emitted from different paths of the objective optical system as parallax images again, using a plurality of independent optical systems, a plurality of imaging devices that convert the parallax images formed by the plurality of image forming optical system into image signals, and a control unit that adjusts a formation position of a convergence point such that a ratio of a focal length of the objective optical system and a distance in an optical axis direction of the objective optical system between a focal point of the objective optical system and a primary principal point of the image forming optical system is substantially constant.
    • 立体图像拍摄装置包括具有将被摄体形成为实像或虚像的功能的物镜光学系统,分别形成从物镜的不同路径发射的多个被摄体光的多个成像光学系统 光学系统作为视差图像,使用多个独立的光学系统,将由多个成像光学系统形成的视差图像转换为图像信号的多个成像装置,以及调整会聚的形成位置的控制单元 使得物镜光学系统的焦距与物镜光学系统的光轴方向的距离在物镜光学系统的焦点与成像光学系统的主要主要点之间的比率基本上是恒定的 。