公开(公告)号：EP1646041A4

公开(公告)日：2008-12-24

申请号：EP04747349

申请日：2004-07-05

Applicant: KONICA MINOLTA OPTO INC

Inventor： ATARASHI YUICHI ,  YAMASHITA KIYOSHI ,  TAIMA YASUO

IPC: B29C33/38 ,  B29C45/00 ,  B29C45/26 ,  G02B1/04 ,  G02B3/02 ,  G02B5/18 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135 ,  G11B7/22

CPC classification number: B29D11/00009 ,  B29C45/0013 ,  B29C45/263 ,  B29D11/00346 ,  B29L2011/0016 ,  G02B1/041 ,  G02B5/1852 ,  G02B5/1866 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1369 ,  G11B7/13922 ,  G11B7/22 ,  G11B2007/0006

Abstract: Disclosed is an optical element for optical pickup devices which is obtained by shaping a resin material wherein inorganic particles having a diameter of 30 nm or less are dispersed in a plastic resin. Also disclosed are an optical pickup device using such an optical element and a method for producing such an optical element.

公开(公告)号：JP2011198465A

公开(公告)日：2011-10-06

申请号：JP2011129675

申请日：2011-06-10

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： KIMURA TORU ,  MORI NOBUYOSHI ,  SHIN YUICHI ,  YAMASHITA KIYOSHI

IPC: G11B7/135

Abstract: PROBLEM TO BE SOLVED: To provide an optical element for an optical pickup device, capable of properly recording information to and/or reproducing information from a plurality of types of optical information recording media using different wavelengths including a high-density optical disk and a DVD using a blue violet laser light source, and to provide an aberration correction element for the optical pickup device, a condensing element for the optical pickup device, an objective optical system, the optical pickup device, and an optical information recording and reproducing device.SOLUTION: The optical element for the optical pickup device reproduces information from and/or records information to first and second optical information recording media using luminous flux of first and second wavelengths λ1 and λ2. The optical element includes: an optical function surface having a superimposition type diffractive structure where a plurality of ring-shaped zones having a plurality of steps formed inside of the same are arranged around a light axis; and an optical function surface having a diffractive structure composed of a plurality of ring-shape zones divided by steps in the direction of a light axis.

Abstract translation: 要解决的问题：提供一种用于光学拾取装置的光学元件，其能够使用包括高密度光盘和DVD的不同波长的多种类型的光学信息记录介质来适当地记录信息和/或再现信息 使用蓝色紫色激光光源，并且为光学拾取装置提供像差校正元件，用于光学拾取装置的聚光元件，物镜光学系统，光学拾取装置和光学信息记录和再现装置。 ：用于光学拾取装置的光学元件使用第一和第二波长λ1和λ2的光束从第一和第二光学信息记录介质再现信息和/或记录信息。 光学元件包括：具有叠加型衍射结构的光学功能表面，其中在其周围形成有多个台阶的多个环状区域围绕光轴布置; 以及光学功能面，其具有由在光轴方向上的台阶分割的多个环状区域构成的衍射结构。

公开(公告)号：JP2009245584A

公开(公告)日：2009-10-22

申请号：JP2009173786

申请日：2009-07-27

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： KIMURA TORU ,  MORI NOBUYOSHI ,  SHIN YUICHI ,  YAMASHITA KIYOSHI

IPC: G11B7/135

Abstract: PROBLEM TO BE SOLVED: To provide an optical element for an optical pickup device by which the recording and/or reproducing of information can be appropriately conducted on a plurality kinds of optical information recording media, including a high density optical disk and a DVD using a blue violet laser light source, whose using wavelengths are different, an aberration correcting element for the optical pickup device, a light converging element for the optical pickup device, an objective optical system, the optical pickup device, and an optical information recording reproducing device. SOLUTION: The optical element L1 for the optical pickup device PU conducts the recording and/or reproducing of the information on first and second optical information recording media by using light fluxes having first and second wavelength λ1 and λ2, the optical element L1 has an optical functional zone having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped zone is composed of a plurality of stepped sections, and an optical functional zone having a diffractive structure including a plurality of ring-shaped zones, wherein each of the plurality of ring-shaped zones are divided by a stepped section in the light axis direction inside. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种用于光学拾取装置的光学元件，通过该光学元件可以对包括高密度光盘和多个光盘的多种光学信息记录介质适当地进行信息的记录和/或再现 使用蓝色紫色激光光源的DVD，其使用波长不同，用于光学拾取装置的像差校正元件，用于光学拾取装置的聚光元件，物镜光学系统，光学拾取装置和光学信息记录 再现装置。 解决方案：用于光学拾取装置PU的光学元件L1通过使用具有第一和第二波长λ1和λ2的光束来传导关于第一和第二光学信息记录介质的信息的记录和/或再现，光学元件L1 具有具有叠加型衍射结构的光学功能区，该叠层型衍射结构包括围绕光轴同心地形成的多个环状区域，其中每个环形区域由多个台阶部分组成，并且具有 包括多个环状区域的衍射结构，其中，所述多个环状区域中的每一个在所述光轴方向内侧被阶梯部分分割。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009245583A

公开(公告)日：2009-10-22

申请号：JP2009173784

申请日：2009-07-27

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： KIMURA TORU ,  MORI NOBUYOSHI ,  SHIN YUICHI ,  YAMASHITA KIYOSHI

IPC: G11B7/135

Abstract: PROBLEM TO BE SOLVED: To provide an optical element for an optical pickup device by which the recording and/or reproducing of information can be appropriately conducted on a plurality kinds of optical information recording media, including a high density optical disk and a DVD using a blue violet laser light source, whose using wavelengths are different, an aberration correcting element for the optical pickup device, light converging element for the optical pickup device, an objective optical system, the optical pickup device, and an optical information recording reproducing device. SOLUTION: The optical element L1 for the optical pickup device PU conducts the recording and/or reproducing of the information on first and second optical information recording media by using light fluxes having first and second wavelength λ1 and λ2, the optical element L1 has an optical functional zone having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped zone is composed of a plurality of stepped sections, and an optical functional zone having a diffractive structure including a plurality of ring-shaped zones, wherein each of the plurality of ring-shaped zones are divided by a stepped section in the light axis direction inside. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种用于光学拾取装置的光学元件，通过该光学元件可以对包括高密度光盘和多个光盘的多种光学信息记录介质适当地进行信息的记录和/或再现 使用波长不同的蓝紫激光光源的DVD，用于光学拾取装置的像差校正元件，用于光学拾取装置的聚光元件，物镜光学系统，光学拾取装置和光学信息记录再现 设备。 解决方案：用于光学拾取装置PU的光学元件L1通过使用具有第一和第二波长λ1和λ2的光束来传导关于第一和第二光学信息记录介质的信息的记录和/或再现，光学元件L1 具有具有叠加型衍射结构的光学功能区，该叠层型衍射结构包括围绕光轴同心地形成的多个环状区域，其中每个环形区域由多个台阶部分组成，并且具有 包括多个环状区域的衍射结构，其中，所述多个环状区域中的每一个在所述光轴方向内侧被阶梯部分分割。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005317168A

公开(公告)日：2005-11-10

申请号：JP2004203157

申请日：2004-07-09

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： SAKAMOTO KATSUYA ,  TOTSUKA HIDEKAZU ,  SHIN YUICHI ,  OTA KOHEI ,  YAMASHITA KIYOSHI

IPC: G11B7/135

Abstract: PROBLEM TO BE SOLVED: To provide an optical pickup device capable of appropriately performing shaping of a cross-sectional shape of each light flux and conversion of intensity distribution even if a light source unit is used in which a plurality of light emitting points are adjacently provided. SOLUTION: The optical pickup unit 10 is configured with a light source unit 20 in which a plurality of light emitting points emitting lights in different wavelengths are adjacently provided, a beam shaping element 40 for shaping the light flux to have a divergence angle different from that at the incidence, a coupling element 12, and an objective optical element 15 for converging the emitted light flux from the coupling element on a recording face of an optical information recording medium for forming a condensing spot. The distance from each light emitting point to a surface of a protection layer for protecting the recording surface is stabilized irrespective of kinds of the optical information recording medium, and the condensing spot is formed by using a light flux of a long wavelength for the optical information recording medium with a thick protection layer while using a light flux of a short wavelength for the optical information recording medium with a thin protection layer. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决的问题：为了提供能够适当地进行各光束的截面形状的成形以及强度分布的变换的光学拾取装置，即使使用多个发光点的光源单元 相邻提供。 光拾取单元10配置有光源单元20，在该光源单元20中相邻地设置发射不同波长的光的多个发光点，用于使光通量成形为具有发散角的光束整形元件40 不同于入射处的耦合元件12，以及用于将来自耦合元件的发射光束会聚在用于形成聚光点的光学信息记录介质的记录面上的物镜光学元件15。 不管光学信息记录介质的种类如何，从每个发光点到用于保护记录表面的保护层的表面的距离都是稳定的，并且通过使用长波长的光束来形成聚光点，用于光学信息 在具有较薄保护层的光学信息记录介质上使用短波长的光束的同时具有厚保护层的记录介质。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2010061810A

公开(公告)日：2010-03-18

申请号：JP2009286190

申请日：2009-12-17

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： KIMURA TORU ,  MORI NOBUYOSHI ,  SHIN YUICHI ,  YAMASHITA KIYOSHI

IPC: G11B7/135 ,  G11B7/125

Abstract: PROBLEM TO BE SOLVED: To provide an optical element for an optical pickup device, an aberration compensating element for an optical pickup device, a condensing element for an optical pickup device, an objective lens system, the optical pickup device, and an optical information recording/reproducing device to include a high-density optical disk employing a bluish-purple laser light source and a DVD, and to properly record and/or reproduce information on plural optical information recording media using different wavelengths. SOLUTION: The optical element for optical pickup devices reproduces information from and/or records information to first and second optical information recording media using luminous flux of first and second wavelengths λ1 and λ2. The optical element includes: an optical function surface having a superposition type diffractive structure where a plurality of ring-shaped zones having a plurality of steps formed in the inside are arranged around a light axis; and an optical function surface having a diffractive structure composed of a plurality of ring-shape zones divided by steps in the direction of a light axis. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供一种用于光学拾取装置的光学元件，用于光学拾取装置的像差补偿元件，用于光学拾取装置的聚光元件，物镜系统，光学拾取装置和 光信息记录/再现装置，其包括使用蓝紫色激光光源和DVD的高密度光盘，并且使用不同波长适当地记录和/或再现关于多个光信息记录介质的信息。 解决方案：用于光学拾取装置的光学元件使用第一和第二波长λ1和λ2的光束从第一和第二光学信息记录介质再现信息和/或记录信息。 光学元件包括：具有叠加型衍射结构的光学功能表面，其中在光轴周围布置有多个在其中形成的多个台阶的环形区域; 以及光学功能面，其具有由在光轴方向上的台阶分割的多个环状区域构成的衍射结构。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005209321A

公开(公告)日：2005-08-04

申请号：JP2004110368

申请日：2004-04-02

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： KIMURA TORU ,  MORI NOBUYOSHI ,  SHIN YUICHI ,  YAMASHITA KIYOSHI

IPC: G02B5/18 ,  G02B13/00 ,  G02B13/16 ,  G02B13/18 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC classification number: G11B7/1369 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/13727

Abstract: PROBLEM TO BE SOLVED: To provide an optical element, an aberration correction element and a condensing element for optical pickup device, an objective optical system, an optical pickup device, and an optical information recording and reproducing device, which include a high-density optical disk and a DVD using a purple-blue color laser light source, and which can appropriately record and/or reproduce information to plural kinds of optical information recording media for which wavelengths to be used differ. SOLUTION: This optical element for optical pickup device reproduces and/or records the information to a first and a second optical information recording medium using light beams of a first and second wavelength λ1, λ2. The optical element has an optical functional surface provided with a superposition type diffraction structure, which is such a structure that a plurality of ring-shaped zones provided with a plurality of level differences in its interior are formed concentrically around an optical axis, and an optical functional surface provided with a diffraction structure consisting of a plurality of ring-shaped zones divided with the level differences in the direction of an optical axis. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种光学元件，用于光学拾取装置的像差校正元件和聚光元件，物镜光学系统，光学拾取装置和光学信息记录和再现装置，其包括高 使用紫蓝色激光光源的DVD，并且可以将信息适当地记录和/或再现到要使用的波长的多种光学信息记录介质的不同。 解决方案：用于光学拾取装置的光学元件使用第一和第二波长λ1，λ2的光束将信息再现和/或记录到第一和第二光学信息记录介质。 光学元件具有设置有叠加型衍射结构的光学功能表面，其结构是使其内部具有多个电平差的多个环形区域围绕光轴同心地形成，并且光学 功能表面设置有由多个环形区域组成的衍射结构，所述环形区域与光轴方向上的水平差分开。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005178208A

公开(公告)日：2005-07-07

申请号：JP2003423315

申请日：2003-12-19

Applicant: Konica Minolta Opto Inc ,  コニカミノルタオプト株式会社

Inventor： ARAI NORIKAZU ,  YAMASHITA KIYOSHI ,  SHIN YUICHI

IPC: G02B3/00 ,  B29C45/00 ,  B29K105/16 ,  B29K503/06 ,  B29L11/00 ,  G11B7/135 ,  G11B7/22

Abstract: PROBLEM TO BE SOLVED: To provide a resin molding which can simply record various kinds of information including product-related information in a body such as an objective lens and a method for producing the molding.
SOLUTION: When information is written in a plastic lens 81, the lens 81 is moved above a magnetic head 92 to make the lower surface 81c of the lens 81 approach the upper surface 92a of the magnetic head 92. Recording parts RE1-RE3 are formed on the upper surface 92a of the magnetic head 92, a corresponding area on the plastic lens 81 arranged to face the recording parts RE1-RE3 is magnetized, and information designated here is recorded. Information such as a product name, a lot number, a mold number, production conditions, or the like can be recorded in the plastic lens 81.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种树脂模制品，其可以简单地将包括产品相关信息的各种信息记录在诸如物镜的主体中，以及用于制造模制品的方法。 解决方案：当信息被写入塑料透镜81时，透镜81移动到磁头92上方，使得透镜81的下表面81c接近磁头92的上表面92a。记录部分RE1- RE3形成在磁头92的上表面92a上，被配置为面对记录部件RE1-RE3的塑料透镜81上的对应区域被磁化，并记录在此指定的信息。 诸如产品名称，批号，模具编号，生产条件等的信息可以记录在塑料透镜81中。版权所有（C）2005，JPO＆NCIPI