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    Objective lens, optical pickup device using the same, optical recording and reproducing device, and aberration-correcting method
    41.
    发明专利
    Objective lens, optical pickup device using the same, optical recording and reproducing device, and aberration-correcting method 审中-公开
    目标镜头，使用它的光学拾取装置，光学记录和再现装置，以及ABERRATION-Corrting方法

    公开(公告)号：JP2008262702A

    公开(公告)日：2008-10-30

    申请号：JP2008181899

    申请日：2008-07-11

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： YAMAMOTO KENJI ,  MAEDA FUMISADA ,  IMAI SATOSHI ,  SEO KATSUHIRO ,  KATO YOSHIAKI ,  OKAMOTO YOSHIKI ,  TAMURA TATSUMOTO

    IPC: G11B7/135 ,  G02B13/00

    Abstract: PROBLEM TO BE SOLVED: To simultaneously correct the third-order components and fifth-order components of spherical aberration generated due to differences (including difference errors) in thickness of a cover layer to excellently correct aberration even in an optical system in which high-order aberration occurs. SOLUTION: An objective lens 3 is provided, which condenses light on the recording surface of an optical recording medium and is used in an optical pickup device which makes recording and/or reproduction. The third-order and fifth-order spherical aberrations, which occur due to differences (thickness errors inclusive) in thickness of the cover layer 11 of an optical recording medium 10, are defined as SA3(C) and SA5(C), respectively, and the third-order and fifth-order spherical aberrations, which occur due to the magnification aberration of the objective lens, are defined as SA3(L) and SA5(L), respectively. When the third-order spherical aberration SA3(C) of the cover part of the optical recording medium is completely corrected with the third-order spherical aberration SA3(L) which occurs due to the magnification aberration of the objective lens, the objective lens 3 is formed so that a conditional expression -0.035 COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题：为了同时校正由于覆盖层的厚度差异（包括差异误差）而产生的球面像差的三次分量和五次分量，即使在其中 发生高阶像差。 解决方案：提供一种物镜3，其将光聚合在光学记录介质的记录表面上，并用于进行记录和/或再现的光学拾取装置中。 由于光记录介质10的覆盖层11的厚度差异（包括厚度误差）而发生的三阶和五阶球面像差分别被定义为SA3（C）和SA5（C） 并且由于物镜的放大像差而发生的三阶和五阶球面像差分别被定义为SA3（L）和SA5（L）。 当由于物镜的倍率发生的三次球面像差SA3（L）完全校正了光记录介质的盖部分的三阶球面像差SA3（C）时，物镜3 形成为使得条件表达式-0.035

    Wide converter and method for widening angle of lens by using the same
    42.
    发明专利
    Wide converter and method for widening angle of lens by using the same 审中-公开
    用于通过使用相同的方式来增加镜片角度的宽转换器和方法

    公开(公告)号：JP2008185627A

    公开(公告)日：2008-08-14

    申请号：JP2007016651

    申请日：2007-01-26

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： OKAMOTO YOSHIKI ,  MAEDA FUMISADA ,  SEO KATSUHIRO ,  KATO YOSHIAKI

    IPC: G02B15/10 ,  G02B3/14 ,  G02B13/18 ,  G03B17/12 ,  G03B17/56

    Abstract: PROBLEM TO BE SOLVED: To switch a wide angle region into/from an original focal-length region, without having to remove a wide converter.
    SOLUTION: The wide converter 30 has a function to displace the focal length to a wide-angle side, and a liquid lens is used as one or more lenses 12 and 22 out of lenses constituting the wide converter 30. Either surfaces 3 and 6 of the liquid lenses 12 and 22 are constituted of a deformed film having light transmittance, and liquid inside the liquid lens is made variable so that the focal length may be varied.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：将广角区域切换到/从原始焦距区域开始，而不必移除宽的转换器。 解决方案：宽转换器30具有将焦距移动到广角侧的功能，并且液晶透镜用作构成宽转换器30的透镜中的一个或多个透镜12和22。任一表面3 液体透镜12和22中的6个由具有透光率的变形膜构成，液体透镜内部的液体可变，从而可以改变焦距。 版权所有（C）2008，JPO＆INPIT

    Electro wetting device and variable focus lens using the same, optical pickup device, optical recording and reproducing device, droplet operating device, optical element, zoom lens, imaging apparatus, optical modulator and display device
    43.
    发明专利
    Electro wetting device and variable focus lens using the same, optical pickup device, optical recording and reproducing device, droplet operating device, optical element, zoom lens, imaging apparatus, optical modulator and display device 审中-公开
    电光装置和可变焦聚焦镜头，光学拾取装置，光学记录和再现装置，液滴操作装置，光学元件，变焦镜头，成像装置，光学调制器和显示装置

    公开(公告)号：JP2008089752A

    公开(公告)日：2008-04-17

    申请号：JP2006268217

    申请日：2006-09-29

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： KATO YOSHIAKI ,  MAEDA FUMISADA

    IPC: G02B3/12 ,  G02B3/14 ,  G02B7/04 ,  G11B7/135

    Abstract: PROBLEM TO BE SOLVED: To reduce drive voltage which causes the change of the contact angle of a liquid material part by an electro wetting phenomenon. SOLUTION: The electro wetting device is equipped with the liquid material parts 4a and 4b having conductivity or polarity, and an electrode 1 applying voltage to the liquid material parts 4a and 4b while making a dielectric layer lie in between. The dielectric layer is composed as an anodic oxidation part 2 composed of metallic oxide formed by anodizing an electrode. Thus, film thickness is made thin; a dielectric constant is made high and the drive voltage is reduced. COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题：为了降低驱动电压，其通过电润湿现象导致液体材料部分的接触角的变化。 电润湿装置配备有具有导电性或极性的液体材料部分4a和4b，以及在使电介质层位于其间的同时向液体材料部分4a和4b施加电压的电极1。 电介质层由阳极化电极形成的由金属氧化物构成的阳极氧化部分2构成。 因此，膜厚度变薄; 使介电常数高，驱动电压降低。 版权所有（C）2008，JPO＆INPIT

    Optical pickup
    44.
    发明专利
    Optical pickup 审中-公开
    OPTICAL PICKUP

    公开(公告)号：JP2005327398A

    公开(公告)日：2005-11-24

    申请号：JP2004145641

    申请日：2004-05-14

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： OKAMOTO YOSHIKI ,  SEO KATSUHIRO ,  KATO YOSHIAKI ,  YONEZAWA TAKESHI

    IPC: G11B7/125 ,  G11B7/135

    Abstract: PROBLEM TO BE SOLVED: To minimize a change in the quantity of light in an optical axis of a laser beam on the surface of an objective lens and around the optical axis even if focal distance is changed. SOLUTION: An optical pickup 1 comprises a light source 2 for emitting the laser beam; a group of at least one collimate lens 3 for parallelizing the laser beam emitted from the light source 2; a group of at least one objective lens 5 for condensing the laser beam parallelized by the group of collimate lenses 3 that enter via an aperture onto the signal recording surface of an optical disk 11; and a refractive power variable element 6 that is provided at the same position as or close to the aperture provided directly before the group of objective lenses 5 between the group for collimate lenses 3 and the group of objective lenses 5, and changes the focal distance of the group of objective lenses 5 by varying refractive power. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：即使改变焦距，也能最小化物镜表面上和激光束的光轴的光量的变化。 解决方案：光学拾取器1包括用于发射激光束的光源2; 至少一个用于使从光源2发射的激光束并行化的准直透镜3的组; 一组至少一个物镜5，用于将由经由孔进入的准直透镜组3平行化的激光束聚光到光盘11的信号记录表面上; 以及折射力可变元件6，其设置在与用于准直透镜3的组和物镜组5之间的物镜组之前直接设置的孔的相同位置或附近，并且改变焦距 一组物镜5通过改变屈光力。 版权所有（C）2006，JPO＆NCIPI

    Optical pickup
    45.
    发明专利
    Optical pickup 审中-公开
    OPTICAL PICKUP

    公开(公告)号：JP2005327397A

    公开(公告)日：2005-11-24

    申请号：JP2004145640

    申请日：2004-05-14

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： OKAMOTO YOSHIKI ,  SEO KATSUHIRO ,  KATO YOSHIAKI ,  YONEZAWA TAKESHI

    IPC: G11B7/135 ,  G11B7/125

    Abstract: PROBLEM TO BE SOLVED: To minimize a change in the quantity of light in an optical axis of a laser beam on the surface of an objective lens and around the optical axis even if spherical aberration is corrected. SOLUTION: An optical pickup 1 comprises a light source 2; a group of collimate lenses 3 for parallelizing the laser beam emitted from the light source 2; a group of objective lenses 5 for condensing the laser beam entering via an aperture onto the signal recording surface of an optical disk 11; and a refractive power variable element 6 that is provided between the light source 2 and the group for collimate lenses 3 and corrects the spherical aberration. When the interval between the refractive power variable element and the main plane of the group of collimate lenses, the interval between the main plane of the group of collimate lenses and the aperture of the group of objective lenses, and the refractive power of the group of collimate lenses are set to d 1 ', d 2 ', and ϕ 2 , respectively, the conditions of a numerical expression 1 are satisfied. COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：即使校正球面像差，最小化物镜表面上的激光束的光轴和光轴周围的光量的变化。 解决方案：光学拾取器1包括光源2; 一组用于使从光源2发射的激光束并行化的准直透镜3; 用于将经由孔进入的激光束聚光到光盘11的信号记录表面上的一组物镜5; 以及设置在光源2和用于准直透镜3的组之间的折射力可变元件6，并且校正球面像差。 当折射力可变元件与准直透镜组的主平面之间的间隔，准直透镜组的主平面与物镜组的孔径之间的间隔以及组的折射力 准直透镜分别设置为d 1 ，d 2 '和φ 2 ，满足数值表达式1的条件。 版权所有（C）2006，JPO＆NCIPI

    Optical pickup
    46.
    发明专利
    Optical pickup 审中-公开
    OPTICAL PICKUP

    公开(公告)号：JP2003067966A

    公开(公告)日：2003-03-07

    申请号：JP2001272388

    申请日：2001-09-07

    Applicant: Sony Corp ,  ソニー株式会社

    Inventor： YAMAMOTO KENJI ,  OSATO KIYOSHI ,  KATO YOSHIAKI

    IPC: G02B5/30 ,  G02B1/08 ,  G02F1/13 ,  G02F1/1335 ,  G11B7/00 ,  G11B7/095 ,  G11B7/125 ,  G11B7/135

    CPC classification number: G11B7/13927 ,  G02F1/133553 ,  G02F2203/50 ,  G11B7/0948 ,  G11B7/0956 ,  G11B7/1369 ,  G11B2007/0013

    Abstract: PROBLEM TO BE SOLVED: To correct the wave surface aberration caused by various errors when manufacturing an optical element, while suppressing the loss of light from the light source as much as possible, and correct especially the aberration due to thickness errors, slope errors of an optical recording medium.
    SOLUTION: This liquid crystal element 3 has a light source 1, an objective lens 2 to condense the light flux from the light source 1 to irradiate the signal recording surface 101a of an optical recording medium 101, and a liquid crystal element 3 which has a front and a rear flat surface and is disposed in an optical path between the light sources 1, and the objective lens 2 to give a predetermined phase distribution to the transmitted light. It is built by sandwiching a liquid crystal molecule layer with a pair of transparent base plates whose sides facing the liquid crystal molecule layer are formed making the thickness distribution of the liquid crystal molecule layer similar to the phase distribution caused by the predetermined aberration.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题：为了校正在制造光学元件时由各种误差引起的波面像差，同时尽可能地抑制来自光源的光的损失，并且特别地校正由于厚度误差引起的像差，斜率误差 光记录介质。 解决方案：该液晶元件3具有光源1，物镜2，用于冷凝来自光源1的光束，以照射光记录介质101的信号记录表面101a;以及液晶元件3，其具有 前平面和后平面，并且设置在光源1和物镜2之间的光路中，以对透射光给出预定的相位分布。 通过将液晶分子层夹在一起形成面对液晶分子层的一侧的透明基板构成，使得液晶分子层的厚度分布与由预定像差引起的相位分布相似。

    OPTICAL PICKUP DEVICE FOR MULTILAYERED OPTICAL DISK
    47.
    发明专利
    OPTICAL PICKUP DEVICE FOR MULTILAYERED OPTICAL DISK 失效

    公开(公告)号：JPH08185640A

    公开(公告)日：1996-07-16

    申请号：JP32916094

    申请日：1994-12-28

    Applicant: SONY CORP

    Inventor： KATO YOSHIAKI ,  FUKUMOTO ATSUSHI

    IPC: G11B11/10 ,  G11B7/135 ,  G11B11/105

    Abstract: PURPOSE: To surely perform tracking control, focusing control, etc., by providing a member for shielding beams reflected on a non-focused information signal layer. CONSTITUTION: This device 1 is provided with a light shielding plate 11 having a pin hole 11A. Then, a photodetector 13 receives surely only the beams reflected the non-focused information signal layer of a double-layered optical disk 5. On the other hand, the stray beams of the beams reflected the non- focused information signal layer of the disk 5 are shielded surely. Thus, at the time of reading and reproducing the information signal, the photodetector 13 is not affected adversely by the stray beams of the beams reflected on the information signal layer of the disk 5 to which an objective lens 9 is not focused.

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