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1. 发明授权

US06400672B2 Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens 失效
标题翻译：用于记录/再现光学信息记录介质的方法，光学拾取装置，物镜和物镜的设计方法
公开(公告)号：US06400672B2
公开(公告)日：2002-06-04
申请号：US09798965
申请日：2001-03-06
申请人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
发明人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
IPC分类号： G11B712
CPC分类号： G11B7/1275 , G02B3/10 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus includes a light source for emitting a light flux; and a converging optical system having a first, second, and third divided surface, which are divided in the order named from the vicinity of an optical axis of the converging optical system, for converging the light flux emitted from the light source, wherein a beam spot passing through the first and third divided surfaces is formed onto a first optical information recording medium having a transparent substrate whose thickness is t1, and a beam spot passing through the first and second surfaces is formed onto a second optical information recording medium having a transparent substrate whose thickness is t2 that is more than t1. The optical pickup apparatus further includes an image sensor for receiving a light flux reflected from the first and/or second optical information recording medium.
摘要翻译：光拾取装置包括用于发射光束的光源; 以及会聚光学系统，其具有从会聚光学系统的光轴附近按顺序划分的第一，第二和第三分割表面，用于会聚从光源发射的光束，其中光束通过第一和第三分割表面的光斑形成在具有厚度为t1的透明基板的第一光学信息记录介质上，并且穿过第一和第二表面的光束点形成在具有透明的第二光学信息记录介质上基板的厚度t2大于t1。光学拾取装置还包括用于接收从第一和/或第二光学信息记录介质反射的光束的图像传感器。

2. 发明授权

US06243349B1 Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens 失效
标题翻译：用于记录/再现光学信息记录介质的方法，光学拾取装置，物镜和物镜的设计方法
公开(公告)号：US06243349B1
公开(公告)日：2001-06-05
申请号：US09624342
申请日：2000-07-24
申请人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
发明人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
IPC分类号： G11B712
CPC分类号： G11B7/1275 , G02B3/10 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus includes a light source for emitting a light flux; and a converging optical system having a first, second, and third divided surface, which are divided in the order named from the vicinity of an optical axis of the converging optical system, for converging the light flux emitted from the light source, wherein a beam spot passing through the first and third divided surfaces is formed onto a first optical information recording medium having a transparent substrate whose thickness is t1, and a beam spot passing through the first and second surfaces is formed onto a second optical information recording medium having a transparent substrate whose thickness is t2 that is more than t1. The optical pickup apparatus further includes an image sensor for receiving a light flux reflected from the first and/or second optical information recording-medium.
摘要翻译：光拾取装置包括用于发射光束的光源; 以及会聚光学系统，其具有从会聚光学系统的光轴附近按顺序划分的第一，第二和第三分割表面，用于会聚从光源发射的光束，其中光束通过第一和第三分割表面的光斑形成在具有厚度为t1的透明基板的第一光学信息记录介质上，并且穿过第一和第二表面的光束点形成在具有透明的第二光学信息记录介质上基板的厚度t2大于t1。光学拾取装置还包括用于接收从第一和/或第二光学信息记录介质反射的光束的图像传感器。

3. 发明授权

US06192021B1 Optical pickup apparatus 失效
标题翻译：用于读取或记录光学信息记录介质的信息的光学拾取装置
公开(公告)号：US06192021B1
公开(公告)日：2001-02-20
申请号：US09062712
申请日：1998-04-20
申请人： Shinichiro Saito , Norikazu Arai , Hiroyuki Yamazaki
发明人： Shinichiro Saito , Norikazu Arai , Hiroyuki Yamazaki
IPC分类号： G11B700
CPC分类号： G11B7/1374 , G11B7/1275 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus for performing a reading or recording operation of information on one of different kinds of optical information recording medium, each having a transparent base board in different thickness. The optical pickup apparatus includes: a laser beam generator; a light converging optical system for converging luminous flux from the laser beam generator through the transparent base board onto an information recording surface of the optical information recording medium. In the optical pickup apparatus, the light converging optical system includes an objective lens and divides a light flux from the laser beam generator into at least two areas in a direction perpendicular to the optical axis; the different kinds of optical information recording medium includes a first optical information recording medium, having a transparent base board with a thickness t1, and a second optical information recording medium, having a transparent base board with a thickness t2; and magnification m2 of the objective lens, viewed from the second optical information recording medium, is smaller than magnification m1 of the objective lens, viewed from the first optical information recording medium side.
摘要翻译：一种光学拾取装置，用于对不同种类的光学信息记录介质之一进行信息的读取或记录操作，每个光学信息记录介质具有不同厚度的透明基板。光拾取装置包括：激光束发生器; 聚光光学系统，用于将来自激光束发生器的光束通过透明基板收敛到光学信息记录介质的信息记录表面上。在光拾取装置中，聚光光学系统包括物镜，并将来自激光束发生器的光束在垂直于光轴的方向上分成至少两个区域; 不同种类的光学信息记录介质包括具有厚度为t1的透明基板的第一光学信息记录介质和具有厚度为t2的透明基板的第二光学信息记录介质; 从第二光学信息记录介质侧观察物镜的倍率m 2小于物镜的倍率m1，从第一光学信息记录介质侧观察。

4. 发明授权

US6118749A Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens 有权
公开(公告)号：US6118749A
公开(公告)日：2000-09-12
申请号：US478514
申请日：2000-01-06
申请人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
发明人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
IPC分类号： G02B3/10 , G11B7/00 , G11B7/125 , G11B7/135 , G11B7/12
CPC分类号： G11B7/1275 , G02B3/10 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus includes a light source for emitting a light flux; and a converging optical system having a first, second, and third divided surface, which are divided in the order named from the vicinity of an optical axis of the converging optical system, for converging the light flux emitted from the light source, wherein a beam spot passing through the first and third divided surfaces is formed onto a first optical information recording medium having a transparent substrate whose thickness is t1, and a beam spot passing through the first and second surfaces is formed onto a second optical information recording medium having a transparent substrate whose thickness is t2 that is more than t1. The optical pickup apparatus further includes an image sensor for receiving a light flux reflected from the first and/or second optical information recording medium.

5. 发明授权

US6061324A Method for recording/reproducing optical information recording medium, optical pickup apparatus, objective lens and design method of objective lens 失效
公开(公告)号：US6061324A
公开(公告)日：2000-05-09
申请号：US953683
申请日：1997-10-17
申请人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
发明人： Norikazu Arai , Hiroyuki Yamazaki , Shinichiro Saito
IPC分类号： G02B3/10 , G11B7/00 , G11B7/125 , G11B7/135
CPC分类号： G11B7/1275 , G02B3/10 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/139 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup apparatus includes a light source for emitting a light flux; and a converging optical system having a first, second, and third divided surface, which are divided in the order named from the vicinity of an optical axis of the converging optical system, for converging the light flux emitted from the light source, wherein a beam spot passing through the first and third divided surfaces is formed onto a first optical information recording medium having a transparent substrate whose thickness is t1, and a beam spot passing through the first and second surfaces is formed onto a second optical information recording medium having a transparent substrate whose thickness is t2 that is more than t1. The optical pickup apparatus further includes an image sensor for receiving a light flux reflected from the first and/or second optical information recording medium.

6. 发明授权

US07889617B2 Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权
标题翻译：光拾取装置，设置有光学拾取装置的记录/再现装置，光学元件和信息记录/再现方法
公开(公告)号：US07889617B2
公开(公告)日：2011-02-15
申请号：US11976063
申请日：2007-10-19
申请人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
发明人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.
摘要翻译：一种用于从光学信息记录介质再现信息或将信息记录在光学信息记录介质上的光学拾取装置设置有用于发射具有第一波长的第一光通量的第一光源; 第二光源，用于发射具有第二波长的第二光束，所述第一波长不同于所述第二波长; 具有光轴和衍射部分的会聚光学系统和光电检测器; 其中在第一光束通过衍射部分以产生至少一个衍射光线的情况下，第一光通量的n阶衍射光线的量大于第一光通量的任何其它有序衍射光线的量并且在第二光束通过衍射部分以产生至少一个衍射光线的情况下，第二光束的n阶衍射光线的量大于第二光的任何其它有序衍射光线的量通量，其中n表示除零以外的整数。

7. 发明授权

US07342851B2 Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 失效
公开(公告)号：US07342851B2
公开(公告)日：2008-03-11
申请号：US11138955
申请日：2005-05-27
申请人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
发明人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
IPC分类号： G11B7/00 , G11B7/135
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.

8. 发明申请

US20060007837A1 Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权
公开(公告)号：US20060007837A1
公开(公告)日：2006-01-12
申请号：US11225096
申请日：2005-09-14
申请人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
发明人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.

9. 发明授权

US06765732B2 Optical pickup lens, molded optical component, handling method, and mold for optical component 失效
标题翻译：光学拾取镜头，模制光学部件，处理方法和用于光学部件的模具
公开(公告)号：US06765732B2
公开(公告)日：2004-07-20
申请号：US10206187
申请日：2002-07-29
申请人： Shogo Yamamoto , Hiroyuki Hattori , Etsuzo Kurihara , Shinichiro Saito , Takashi Matsumaru , Taichiro Saito , Kazuo Ishida , Yuichi Atarashi , Norikazu Arai
发明人： Shogo Yamamoto , Hiroyuki Hattori , Etsuzo Kurihara , Shinichiro Saito , Takashi Matsumaru , Taichiro Saito , Kazuo Ishida , Yuichi Atarashi , Norikazu Arai
IPC分类号： G02B302
CPC分类号： G11B7/1374 , B29C45/27 , B29D11/00009 , B29D11/00432 , B29L2011/0016 , C03B11/08 , C03B2215/404 , C03B2215/49 , G02B3/04 , G11B7/22 , G11B11/10543 , Y02P40/57
摘要： An objective lens for use in an optical pickup apparatus for conducting recording and/or reproducing information for an optical information recording medium, has a lens section shaped in an approximate circle and including a flange section; and a connecting section integrally provided to the lens section. The objective lens satisfies the following conditional formulas: 0.5≦A≦2.0, 0.3A≦B≦1.7A where A is a diameter of the lens section when the lens section is viewed from an direction of an optical axis, and B is a width of the connecting section when the connecting section is viewed from the direction of the optical axis.
摘要翻译：用于对光学信息记录介质进行记录和/或再现信息的光学拾取装置中的物镜具有近似圆形且包括凸缘部分的透镜部分; 以及与透镜部一体地设置的连接部。该物镜满足以下条件式：其中，A是从光轴方向观察透镜部时的透镜部的直径，B是从连接部从方向观察时的连接部的宽度的光轴。

10. 发明申请

US20080316900A1 Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权
公开(公告)号：US20080316900A1
公开(公告)日：2008-12-25
申请号：US11976062
申请日：2007-10-19
申请人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
发明人： Norikazu Arai , Toshiyuki Kojima , Toshihiko Kiriki , Kohei Ota , Shinichiro Saito
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/1374 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.

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