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1.发明授权Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权光拾取装置，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
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。
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公开(公告)号：US07342851B2
公开(公告)日：2008-03-11
申请号：US11138955
申请日：2005-05-27
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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公开(公告)号：US20060007837A1
公开(公告)日：2006-01-12
申请号：US11225096
申请日：2005-09-14
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.
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公开(公告)号：US20080316900A1
公开(公告)日：2008-12-25
申请号：US11976062
申请日：2007-10-19
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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公开(公告)号：US20080175128A1
公开(公告)日：2008-07-24
申请号：US11976063
申请日：2007-10-19
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.
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公开(公告)号：US07173895B2
公开(公告)日：2007-02-06
申请号：US10612019
申请日：2003-07-03
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.
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公开(公告)号：US07924681B2
公开(公告)日：2011-04-12
申请号：US11976062
申请日：2007-10-19
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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8.发明授权Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权光拾取装置，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：US07366078B2
公开(公告)日：2008-04-29
申请号：US11225096
申请日：2005-09-14
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。
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公开(公告)号：US07961583B2
公开(公告)日：2011-06-14
申请号：US11976061
申请日：2007-10-19
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.
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10.发明授权公开(公告)号：US07173896B2
公开(公告)日：2007-02-06
申请号：US10611920
申请日：2003-07-03
IPC分类号： B11B7/00
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。
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