公开(公告)号：JPH05289132A

公开(公告)日：1993-11-05

申请号：JP9119692

申请日：1992-04-10

Applicant: SONY CORP

Inventor： KIJIMA KOUICHIROU ,  YAMADA MASAHIRO

IPC: G02B6/12 ,  G02B6/13 ,  G02F1/37 ,  H01L27/15 ,  H01S3/109 ,  H01S5/00 ,  H01S5/042 ,  H01S3/18

Abstract: PURPOSE:To improve mass-productivity and characteristic by forming an optical waveguide element so that the distance from the surface to the center axis at the light incident end of the waveguide is coincident with the distance from the surface of a semiconductor laser to the center axis at an emitting end. CONSTITUTION:The optical waveguide element 21 provided an optical waveguide on a ferroelectric substance 12 and the semiconductor laser 1 are mechanically integrated by opposing adjacently the emitting end 2a of the semiconductor laser to the light incident end 15a of the optical waveguide. The distance H2 from the surface 21a of the optical waveguide element 21 to the center axis of the light incident end 15a of the optical waveguide is made coincident with the distance H1 from the surface 1a of the semiconductor laser 1 to the emitting end. Consequently, by juxtaposing both on the substrate 32 on the common plane, since the center axis of the emitting end 2a of the semiconductor laser 1 is made coincident with the axis of the light incident end 15a of the optical waveguide in the optical waveguide element 21 at least in height, i.e., in the vertical position, positioning of both axes is simplified.

公开(公告)号：JPH04335620A

公开(公告)日：1992-11-24

申请号：JP10739291

申请日：1991-05-13

Applicant: SONY CORP

Inventor： TAGUCHI AYUMI ,  YAMADA MASAHIRO ,  KAWAKUBO SHIN ,  KIJIMA KOUICHIROU

IPC: G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  G02F1/377 ,  H01S3/109 ,  H01S5/00

Abstract: PURPOSE:To form a polarization inversion structure without causing the surface contamination, refractive index variation, crystal breakage, etc., of a ferroelectric material. CONSTITUTION:On the ferroelectric material 10 after single polarization, 1st and 2nd electrodes 1 and 2 are arranged in the polarizing direction and at least the 1st electrode 1 is formed in pattern corresponding to the pattern of polarization inversion structure which is obtained finally; and a voltage of 1-100kV/mm is applied between the 1st and 2nd electrodes 1 and 2 so that a negative potential is applied to the negative side of self-polarization of the ferroelectric material 10 and a positive potential is applied to the positive size, thus forming the polarization inversion structure.

公开(公告)号：JPH0419719A

公开(公告)日：1992-01-23

申请号：JP12478690

申请日：1990-05-15

Applicant: SONY CORP

Inventor： YAMADA MASAHIRO ,  KIJIMA KOUICHIROU

IPC: G02F1/37 ,  G02F1/35 ,  G02F1/355 ,  G02F1/377 ,  H01S3/109

Abstract: PURPOSE:To easily form a periodic domain inversion structure part which has a fine pitch with high accuracy without causing variation in refractive index by arranging a 1st and a 2nd electrode opposite each other on the mutually opposite main surfaces of a nonlinear ferrodielectric optical material body which is formed into a single domain, and applying a pulse voltage between those electrodes and performing domain control. CONSTITUTION:On the mutually opposite main surfaces of the nonlinear ferrodielectric optical material body 1 which is made into the single domain, the 1st and 2nd electrodes 11 and 12 are provided directly opposite each other. At least one of those opposite electrodes 11 and 12 is formed on a necessary electrode pattern, i.e. the domain inversion part according to the pattern and the necessary pulse voltage is applied between those the opposite electrodes 11 and 12 to perform the domain control which locally forms the domain inversion part 3 in pattern corresponding to the electrode pattern. Consequently, the fine pitch and pattern can be formed with high accuracy, and the applied pulse voltage is controlled to easily perform thickness control over an inverted domain with high accuracy.

公开(公告)号：JPH02187735A

公开(公告)日：1990-07-23

申请号：JP827189

申请日：1989-01-17

Applicant: SONY CORP

Inventor： YAMADA MASAHIRO

IPC: G02F1/35 ,  G02F1/355 ,  G02F1/37

Abstract: PURPOSE:To control the thickness of inverting domains with ease and high accuracy by impressing a DC voltage between 1st and 2nd electrodes provided on both sides of a nonlinear ferroelectric optical material of single domain to generate the domain inverting parts. CONSTITUTION:The 1st and 2nd electrodes 11 and 12 are deposited and formed on both main surfaces of the nonlinear ferroelectric optical material 1 of the single domain. The DC voltage is impressed to this material 1 in a required atmosphere by throwing a DC power source 13 for the required period of time between both electrode terminals. The periodic domain inverting structure parts 3 in which the inverting domains of the direction reverse from the +c axis heating from the electrode 11 toward 12 have the pitch corresponding to the pitch 2A of the stripe patterns of the electrode 11 are obtd. in this way. The electrodes 11, 12 are then removed and the light guides 2 having the refractive index made larger than the refractive index of the material body 1 having the inverting structure parts 3 are formed on the main surface side of the material body 1. The material body 1 is cut to remove the comb-shaped connecting parts connecting the parallel stripe patterns of the material body 1 exclusive of the domain inverting parts thereof, by which the second harmonic wave generating element formed with the inverting structures 3 across the waveguide structure is obtd.

公开(公告)号：JPH02101439A

公开(公告)日：1990-04-13

申请号：JP25561988

申请日：1988-10-11

Applicant: SONY CORP

Inventor： YAMADA MASAHIRO ,  ITO HIROMASA

IPC: G02F1/37

Abstract: PURPOSE:To obtain a circular second harmonic wave radiation beam by forming the section of a light guide formed on a nonlinear optical substrate to a specific shape. CONSTITUTION:The light guide 2 formed on the nonlinear optical material 1 is formed larger in the width (a) of the plane parallel with the surface of the substrate 1 and the width (b) of the plane in the depth direction than the cut-off thickness to a basic wave in the generation of the second harmonic wave by Cherenkov radiation. The light guide is also so formed as to be smaller in the depth (a) of the plane parallel with the surface and larger in the width (b) of the plane in the depth direction than the cut off thickness to the second harmonic wave. The second harmonic wave propagated from the light guide 2 in which the basic wave is confined to the substrate 1 is, therefore, propagated near the surface of the substrate 1. The shape of the radiation beam of the second harmonic wave radiated form the substrate is improved to the circular or elliptic shape in this way.

公开(公告)号：JP2012163851A

公开(公告)日：2012-08-30

申请号：JP2011025304

申请日：2011-02-08

Applicant: Sony Corp ,  ソニー株式会社

Inventor： AOKI SUNAO ,  YAMADA MASAHIRO

IPC: G03B35/08 ,  G03B5/08 ,  H04N13/02

CPC classification number: H04N13/0239 ,  H04N5/23212 ,  H04N13/0203 ,  H04N13/0242

Abstract: PROBLEM TO BE SOLVED: To make it possible to adjust the position of a focus without changing the interval of a virtually formed pupil.SOLUTION: A stereoscopic image pickup device includes an objective optical system having a function that forms a subject as a real image or a virtual image. The stereoscopic image pickup device also includes a plurality of imaging optical systems 20 that cause a plurality of subject luminous fluxes output from different routes of the objective optical system 10 to be formed again as a parallax image by a plurality of independent optical systems. The stereoscopic image pickup device further includes a plurality of imaging devices 202 for converting the parallax image image-formed by the plurality of imaging optical systems 20 into an image signal. After that, the stereoscopic image pickup device causes the front side principal point s of each imaging optical system 20 to be located or moved so that the ratio of the length of a vertical line when the vertical line is drawn down from each front side principal point s to the optical axis Ax1 of the objective optical system 10 to the length of the line segment connecting between the intersection x where the vertical line and the optical axis of the objective optical system intersects and the focal point f of the objective optical system 10 becomes constant.

Abstract translation: 要解决的问题：使得可以在不改变虚拟形成的瞳孔的间隔的情况下调整焦点的位置。 解决方案：立体图像拾取装置包括具有将被摄体形成为真实图像或虚像的功能的物镜光学系统。 立体图像拾取装置还包括多个成像光学系统20，其使得通过多个独立的光学系统再次形成由物镜光学系统10的不同路线输出的多个对象光束作为视差图像。 立体图像拾取装置还包括多个成像装置202，用于将由多个成像光学系统20形成的视差图像转换为图像信号。 之后，立体图像拾取装置使得每个成像光学系统20的前侧主点s被定位或移动，使得当垂直线从每个前侧主点被拉下时垂直线的长度的比 相对于物镜光学系统10的光轴Ax1与物镜光学系统的垂直线和光轴相交的交点x与物镜光学系统10的焦点f之间连接的线段的长度成为 不变。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2008310925A

公开(公告)日：2008-12-25

申请号：JP2007160462

申请日：2007-06-18

Applicant: Sony Corp ,  ソニー株式会社

Inventor： AOKI SUNAO ,  YAMADA MASAHIRO

IPC: G11B7/135 ,  G11B7/125

CPC classification number: G11B7/13925 ,  G02B26/0825 ,  G02B27/0068 ,  G11B7/1362 ,  G11B2007/0013

Abstract: PROBLEM TO BE SOLVED: To provide a deformable mirror device capable of suppressing the deterioration of flatness of a mirror plane due to the stress caused when being attached to another device and also suppressing the device from being large in size. SOLUTION: The device has such structure that a strength securing member is inserted between a flexible member on which a mirror plane is formed and a base substrate. By this structure, the influence of the force based on the stress to the flexible member can be effectively suppressed even when the stress is caused in the mirror device when it is attached to the other device, consequently, deterioration of flatness of the mirror plane can be suppressed. Also by such structure where a function of strength securing is achieved by separately provided strength securing member but not by the flexible member side, when strength is secured, cross section thickness of the strength securing member can be expanded to an inner peripheral direction side but not to an outer peripheral direction. Thereby, the deformable mirror device can be effectively prevented from increasing in size when strength is secured. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 解决的问题：提供一种能够抑制由于在附接到另一装置时引起的应力而导致的反射镜平面度的劣化并且还抑制装置尺寸变大的可变形反射镜装置。 解决方案：该装置具有使强度固定构件插入到形成有镜面的柔性构件与基底基板之间的结构。 通过这种结构，即使当在装置附接到另一装置时在反射镜装置中产生应力时，也能够有效地抑制基于应力的力对柔性构件的影响，因此，镜面的平坦度的劣化 被压制 同样通过这样的结构，其中通过单独设置的强度固定构件而不是由柔性构件侧实现强度固定的功能，当确保强度时，强度固定构件的横截面厚度可以扩展到内周方向侧 到外周方向。 因此，当确保强度时，可以有效地防止可变形反射镜装置的尺寸增大。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2006179038A

公开(公告)日：2006-07-06

申请号：JP2004368092

申请日：2004-12-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMADA MASAHIRO ,  AOKI SUNAO

IPC: G11B7/0065 ,  G11B7/125 ,  G11B7/135

Abstract: PROBLEM TO BE SOLVED: To uniformize a light quantity distribution on a two-dimensional optical sensor of a diffracted light at the reproduction of a hologram memory. SOLUTION: An optical sensor means is allowed to be irradiated with the diffracted light through a light quantity filter means 6 of which transmissivity is made different in the radial direction of beam sectional plane of the diffracted light. This light quantity filter means 6 is arranged at the position on an optical path, where the light quantity distribution of the diffracted light becomes the same as the light quantity distribution on the optical sensor means. Then, a light quantity distribution difference is corrected by setting the transmissivity with the light quantity filter means so that the transmissivity is different in the radial direction, and the diffracted light is arranged so as to be made incident on the optical sensor means 5 at an almost uniform light quantity level in the radial direction of beam. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：在全息图存储器的再现时使在衍射光的二维光学传感器上的光量分布均匀化。 解决方案：通过使衍射光的光束截面的半径方向上的透射率不同的光量滤光器装置6，允许光传感器装置被衍射光照射。 该光量滤光器装置6布置在光路上的光线分布与光学传感器装置上的光量分布相同的光路上的位置处。 然后，通过用光量滤光器装置设置透射率使得透射率在径向方向上不同来校正光量分布差，并且衍射光被布置成以一定的速度入射到光学传感器装置5上 光束径向几乎均匀的光量水平。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006119332A

公开(公告)日：2006-05-11

申请号：JP2004306505

申请日：2004-10-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMADA MASAHIRO ,  AOKI SUNAO

IPC: G03H1/02 ,  G03H1/22 ,  G11B7/0065

Abstract: PROBLEM TO BE SOLVED: To increase data readout rate and to suppress crosstalk, in an optical waveguide type hologram recording medium.
SOLUTION: A two-layer structure is provided to, for example, one cladding layer 4 of two cladding layers 3, 4 so stacked that a core layer 2 as an optical waveguide on which reference light B1 is made incident is held between these, and a hologram pattern is formed between the two layers of the cladding layer 4. At this time, the first cladding layer 4a kept in contact with the core layer 2 is made of a photorefractive material whose refractive index rises upon irradiation with access light B2 different from the reference light B1, so that diffracted light according to the hologram pattern 5 can be emitted to the outside only in the irradiated region. As a result, light utilization efficiency increases to increase data readout rate, and stray light is controlled to suppress crosstalk.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：在光波导型全息图记录介质中增加数据读出速率并抑制串扰。 解决方案：将两层结构设置在例如两个包覆层3,4的一个包覆层4上，以使得作为入射参考光B1的光波导的芯层2被保持在 这些，并且在包层4的两层之间形成全息图。此时，与芯层2保持接触的第一包层4a由折射率随着入射光照射而升高的光折射材料制成 B2不同于参考光B1，使得根据全息图模式5的衍射光可以仅在照射区域中发射到外部。 结果，光利用效率增加以增加数据读出速率，并且控制杂散光以抑制串扰。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006092657A

公开(公告)日：2006-04-06

申请号：JP2004276954

申请日：2004-09-24

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMADA MASAHIRO ,  AOKI SUNAO

IPC: G11B7/135 ,  G11B7/004 ,  G11B7/09 ,  G11B7/125

Abstract: PROBLEM TO BE SOLVED: To provide a means for realizing ROM/RAM compatibility and low-order compatibility in a recording/reproducing system using a multilayer optical disk or the like having, e.g., 10 layers or more. SOLUTION: First and second laser light source means are included. For the wavelengths of laser beams, the wavelength of a first laser beam for obtaining a reflected light for reproduction and servo and a substantial wavelength for recording, i.e., the wavelength of 1/2 of the wavelength of a second laser beam, are prevented from overlapping each other. The substantial wavelength becomes a wavelength of 1/2 of the wavelength of the first laser beam because the wavelength becomes half in the process of two-photon absorption. Thus, freedom is obtained for setting absorbance and reflectance in the recording layer of a recording medium, i.e., film designing, thereby enabling ROM/RAM compatibility. A land/groove is formed in each recording layer of the recording medium, and the focus positions of the first and second laser beams are roughly matched with each other. Thus, an advantageous configuration is provided regarding the easiness and low-order compatibility of a servo operation. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种在具有例如10层以上的多层光盘等的记录/再现系统中实现ROM / RAM兼容性和低顺序兼容性的装置。

解决方案：包括第一和第二激光光源装置。 对于激光束的波长，用于获得用于再现和伺服的反射光的第一激光束的波长和用于记录的实质波长，即第二激光束的波长的1/2的波长被防止 彼此重叠 由于在双光子吸收过程中波长变为一半，所以实质波长变为第一激光束的波长的1/2的波长。 因此，获得用于设置记录介质的记录层中的吸光度和反射率的自由度，即膜设计，从而使得ROM / RAM兼容性。 在记录介质的每个记录层中形成一个平台/凹槽，并且第一和第二激光束的焦点位置彼此大体匹配。 因此，提供了关于伺服操作的容易性和低阶兼容性的有利配置。 版权所有（C）2006，JPO＆NCIPI