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1.发明公开OPTICAL PICKUP APPARATUS, OBJECTIVE OPTICAL ELEMENT, AND OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS 审中-公开光学的摇篮，光学镜片元件和光学信息记录和再现
公开(公告)号：EP2001020A2
公开(公告)日：2008-12-10
申请号：EP07714667.8
申请日：2007-02-21
发明人： NAKAMURA, Kentarou , NOMURA, Eiji , MORI, Nobuyoshi , OTA, Kohei
CPC分类号： G11B7/1374 , G02B3/08 , G02B27/42 , G02B27/4238 , G02B27/4283 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： Provided are an optical pickup apparatus, an objective optical element, and an optical information recording and reproducing apparatus, capable of recording and/or reproducing information in a compatible way to different types of optical discs. The optical pickup apparatus comprises a first light source that emits a first light flux, a second light source that emits a second light flux, a third light source that emits a third light flux, and an objective optical element. The optical surface of the objective optical element has at least two areas of a central area and a peripheral area surrounding the central area, wherein the central area has a first optical path difference giving structure and the peripheral area has a second optical path difference giving structure. The objective optical element focuses the light fluxes passing through its central and peripheral areas on the information recording surfaces of respective prescribed optical discs so that the information can be recorded and/or reproduced. The first optical path difference giving structure is formed by superimposing a first basic structure and a second basic structure having respective predetermined structures on each other.
摘要翻译： 提供的是在光拾取装置的物镜光学元件，以及光学信息记录和再现设备，其能够记录和/或再现信息的一个兼容的方式以不同类型的光盘。 的光学拾取装置包括：第一光源没有发射第一光通量，第二光源没有发射第二光通量，第三光源没有发射第三光通量，以及物镜光学元件。 对物光学元件的光学面具有中央区域的至少两个区域和环绕中心区域，worin中央区域的周边区域具有第一光程差赋予结构和周边区域具有第二光程差赋予结构 ， 对物光学元件聚焦通过它的中心区域和周边区域上传递信息记录规定光盘respectivement的表面的光束所以没有信息可被记录和/或再现。 第一光程差赋予结构是通过叠加第一基本结构并具有相互respectivement有预定结构的第二基本结构形成。
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2.发明公开OPTICAL PICKUP DEVICE AND OBJECTIVE OPTICAL ELEMENT 审中-公开OPTISCHE PICKUP-ANORDNUNG UND OPTISCHOP OBJEKTIVELEMENT
公开(公告)号：EP2144238A1
公开(公告)日：2010-01-13
申请号：EP08740035.4
申请日：2008-04-08
发明人： NAKAMURA, Kentarou , KIMURA, Tohru
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： There are provided an optical pickup device which can satisfactorily record and/or reproduce information on different kinds of optical information recording medium in spite of compactness, and an objective optical element used for the optical pickup device. The optical functional surface of the objective optical element includes at least two areas of a central area including an optical axis and a peripheral area surrounding the central area. An optical path difference providing structure in the central area is a structure obtained by overlapping a first central basic structure and a second central basic structure which are in a shape of ring-shaped zones divided by step differences, with each other. An optical path difference providing structure in the peripheral area is a structure obtained by overlapping a first peripheral basic structure and a second peripheral basic structure which are in a shape of ring-shaped zones divided by step differences, with each other.
摘要翻译： 提供了一种即使紧凑地可以令人满意地记录和/或再现不同种类的光学信息记录介质上的信息的光学拾取装置和用于光学拾取装置的物镜光学元件。 物镜光学元件的光学功能表面包括包括光轴和围绕中心区域的周边区域的中心区域的至少两个区域。 中心区域中的光程差提供结构是通过将由阶梯差除以环形区域的形状的第一中心基础结构和第二中心基本结构彼此重叠而获得的结构。 外围区域的光程差提供结构是通过将由阶梯差分割成环状区域的第一周边基础结构和第二周边基础结构彼此重叠而获得的结构。
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3.发明授权OPTICAL PICKUP DEVICE, OBJECTIVE OPTICAL ELEMENT, AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE 有权光学的摇篮，光学镜片元件和光学信息记录和再现
公开(公告)号：EP1990801B1
公开(公告)日：2011-12-14
申请号：EP07714670.2
申请日：2007-02-21
发明人： NAKAMURA, Kentarou , NOMURA, Eiji , MORI, Nobuyoshi , OTA, Kohei
CPC分类号： G11B7/1374 , G02B3/08 , G02B27/42 , G02B27/4238 , G02B27/4283 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： Provided are an optical pickup device, an objective optical element, and an optical information recording/reproducing device capable of recording and/or reproducing information to/from optical discs of different types in a compatible manner. The optical pickup device includes a first light source for emitting a first light flux, a second light source for emitting a second light flux, a third light source for emitting a third light flux, and an objective optical element. The objective optical element has an optical surface having at least two areas, i.e., a central area and a peripheral area around the central area. The central area has a first optical path difference giving structure and the peripheral area has a second optical path difference giving structure. The objective optical element gathers the light fluxes passing through the central area and the peripheral area of the objective optical element so as to respectively record and/or reproduce information onto/from an information recording surface of a predetermined optical disc. Furthermore, a focal distance of the objective optical element with respect to the third light flux satisfies a predetermined condition.
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4.发明公开OPTICAL PICKUP APPARATUS, OBJECTIVE OPTICAL ELEMENT, AND OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS 审中-公开光学的摇篮，光学镜片元件和光学信息记录和再现
公开(公告)号：EP1993093A1
公开(公告)日：2008-11-19
申请号：EP07714668.6
申请日：2007-02-21
发明人： NAKAMURA, Kentarou , NOMURA, Eiji , MORI, Nobuyoshi , OTA, Kohei
CPC分类号： G11B7/1374 , G02B3/08 , G02B27/42 , G02B27/4238 , G02B27/4283 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： Provided are an optical pickup apparatus, an objective optical element, and an optical information recording and reproducing apparatus, capable of recording and/or reproducing information in a compatible way to different types of optical discs. The optical pickup apparatus comprises a first light source, a second light source, a third light source, and an objective optical element. The optical surface of the objective optical element has at least two areas of a central area and a peripheral area surrounding the central area, wherein the central area has a first optical path difference giving structure and the peripheral area has a second optical path difference giving structure. The objective optical element focuses the light fluxes passing through its central and peripheral areas on the information recording surfaces of respective prescribed optical discs so that the information can be recorded and/or reproduced. The optical pickup apparatus has such wavelength dependence of spherical aberration that the spherical aberration change caused by the temperature change of the objective optical element is corrected by the temperature dependent wavelength change of the light flux emitted from the first light source.
摘要翻译： 提供的是在光拾取装置的物镜光学元件，以及光学信息记录和再现设备，其能够记录和/或再现信息的一个兼容的方式以不同类型的光盘。 的光学拾取装置包括：第一光源，第二光源，第三光源，并以物镜光学元件。 对物光学元件的光学面具有中央区域的至少两个区域和环绕中心区域，worin中央区域的周边区域具有第一光程差赋予结构和周边区域具有第二光程差赋予结构 ， 对物光学元件聚焦通过它的中心区域和周边区域上传递信息记录规定光盘respectivement的表面的光束所以没有信息可被记录和/或再现。 的光拾取装置已经审查的球面像差的波长依存性那样通过对物光学元件的温度变化而引起的球面像差变化，由所述第一光源发出的光通量的依赖于温度的波长变化校正。
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5.发明公开OPTICAL PICKUP DEVICE, OBJECTIVE OPTICAL ELEMENT AND OPTICAL INFORMATION RECORDER/REPRODUCER 审中-公开光学探测装置，光学镜片元件和记录/播放设备，光信息
公开(公告)号：EP2043095A1
公开(公告)日：2009-04-01
申请号：EP07767695.5
申请日：2007-06-27
发明人： NOMURA, Eiji , NAKAMURA, Kentarou
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup device comprising a first light source emitting a first light beam, a second light source emitting a second light beam, a third light source emitting a third light beam, and an objective optical element, wherein the optical surface of the objective optical element has at least two regions, a central region and a peripheral region, the central region has a first optical path difference imparting structure and the peripheral region has a second optical path difference imparting structure, the objective optical element condenses the first light beam, the second light beam and the third light beam passed through the central region, and condenses the first light beam and the second light beam passed through the peripheral region, and the first and second optical path difference imparting structures have a basic structure as a predetermined optical path difference imparting structure, respectively.
摘要翻译： 一种光拾取装置包括：第一光源，发射第一光束，第二光源发射第二光束，第三光源发射的第三光束，以及物镜光学元件，worin对物光学元件的光学面 具有至少两个区域，中央区域和周边区域，所述中央区域具有第一光程差赋予结构和所述周边区域具有第二光程差赋予结构，上述对物光学元件会聚的第一光束，所述第二 光束并通过中央区域通过第三光束，并会聚第一光束和通过外围区域通过所述第二光束，并且所述第一和第二光程差赋予结构具有的基本结构作为一个预定的光程差 分别赋予结构。
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6.发明公开OPTICAL PICKUP DEVICE, OBJECTIVE OPTICAL ELEMENT AND OPTICAL INFORMATION RECORDER/REPRODUCER 审中-公开光学探测装置，光学镜片元件和记录/播放设备，光信息
公开(公告)号：EP2043094A1
公开(公告)日：2009-04-01
申请号：EP07767694.8
申请日：2007-06-27
发明人： NOMURA, Eiji , NAKAMURA, Kentarou
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup device comprising a first light source emitting a first light beam, a second light source emitting a second light beam, a third light source emitting a third light beam, and an objective optical element, wherein the optical surface of the objective optical element has at least a central region and a peripheral region, the central region has a first optical path difference imparting structure and the peripheral region has a second optical path difference imparting structure, first best focus and second best focus are formed by the third light beam passed through the first optical path difference imparting structure, a spot central part, a spot middle part and a spot peripheral part are formed in a spot which is formed on the information recording surface of a third optical disk by the third light beam passed through the objective optical element, the spot central part is used for recording and/or reproducing the information on the third optical disk but the spot middle part and the spot peripheral part are not used for recording and/or reproducing the information on the third optical disk, and the spot peripheral part is formed on the information recording surface of the third optical disc by the third light beam passed through the second optical path difference imparting structure.
摘要翻译： 一种光拾取装置包括：第一光源，发射第一光束，第二光源发射第二光束，第三光源发射的第三光束，以及物镜光学元件，worin对物光学元件的光学面 具有至少一个中央区域和外围区域，所述中央区域具有第一光程差赋予结构和所述周边区域具有第二光程差赋予结构，第一最佳聚焦和第二最佳聚焦由传递第三光束形成 通过第一光路差赋予结构，点中心部，光点中间部和光点周边部是在一个点形成的所有这是由通过物镜通过第三光束的第三光盘的信息记录表面上形成 光学元件，光点中心部用于记录和/或再现第三光盘上的信息，但光点中间 部和光点周边部不用于记录和/或再现第三光盘上的信息，和光点周边部是通过所述第二光学传递的第三光束形成的第三光盘的信息记录表面上 程差赋予结构。
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7.发明公开OPTICAL PICKUP APPARATUS, OBJECTIVE OPTICAL ELEMENT, AND OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS 审中-公开光学的摇篮，光学镜片元件和光学信息记录和再现
公开(公告)号：EP2001020A9
公开(公告)日：2009-03-11
申请号：EP07714667.8
申请日：2007-02-21
发明人： NAKAMURA, Kentarou , NOMURA, Eiji , MORI, Nobuyoshi , OTA, Kohei
CPC分类号： G11B7/1374 , G02B3/08 , G02B27/42 , G02B27/4238 , G02B27/4283 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： Provided are an optical pickup apparatus, an objective optical element, and an optical information recording and reproducing apparatus, capable of recording and/or reproducing information in a compatible way to different types of optical discs. The optical pickup apparatus comprises a first light source that emits a first light flux, a second light source that emits a second light flux, a third light source that emits a third light flux, and an objective optical element. The optical surface of the objective optical element has at least two areas of a central area and a peripheral area surrounding the central area, wherein the central area has a first optical path difference giving structure and the peripheral area has a second optical path difference giving structure. The objective optical element focuses the light fluxes passing through its central and peripheral areas on the information recording surfaces of respective prescribed optical discs so that the information can be recorded and/or reproduced. The first optical path difference giving structure is formed by superimposing a first basic structure and a second basic structure having respective predetermined structures on each other.
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8.发明公开OPTICAL PICKUP DEVICE, OBJECTIVE OPTICAL ELEMENT, AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE 审中-公开光学的摇篮，光学镜片元件和光学信息记录和再现
公开(公告)号：EP1993094A1
公开(公告)日：2008-11-19
申请号：EP07714669.4
申请日：2007-02-21
发明人： NAKAMURA, Kentarou , NOMURA, Eiji , MORI, Nobuyoshi , OTA, Kohei
CPC分类号： G11B7/1374 , G02B3/08 , G02B27/42 , G02B27/4238 , G02B27/4283 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： Provided are an optical pickup device, an objective optical element, and an optical information recording/reproducing device capable of recording and/or reproducing information to/from optical discs of different types in a compatible manner. The optical pickup device includes a first light source, a second light source, a third light source, and an objective optical element. The objective optical element has an optical surface having at least two areas, i.e., a central area and a peripheral area around the central area. The central area has a first optical path difference giving structure and the peripheral area has a second optical path difference giving structure. The objective optical element gathers the light flux passing through the central area and the peripheral area of the objective optical element so as to respectively record and/or reproduce information onto/from an information recording surface of a predetermined optical disc. Moreover, the first optical path difference giving structure has a coaxial circular band structure having a step and the step difference amount of the first optical path difference giving structure has a predetermined step difference amount.
摘要翻译： 本发明提供在光学拾取装置的物镜光学元件，以及光学信息记录/再现可记录和/或从以兼容的方式的不同类型的光盘/再现信息的设备。 该光学拾取装置包括：第一光源，第二光源，第三光源，并以物镜光学元件。 对物光学元件具有对具有至少两个区域，即中心区域和围绕中心区域的外围区域光学表面。 中央区域具有第一光程差赋予结构和周边区域具有第二光程差赋予结构。 对物光学元件集的光束穿过所述中央区域和所述物镜光学元件的周边区域传递以便分别记录和/或从上信息记录预定的光盘的表面再现信息走上/。 更上方，第一光程差赋予结构具有具有台阶和第一光学路径差给结构的阶差量的同轴圆形带状结构具有预定的阶差量。
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9.发明公开OPTICAL PICKUP DEVICE, OBJECTIVE OPTICAL ELEMENT, AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE 有权光学的摇篮，光学镜片元件和光学信息记录和再现
公开(公告)号：EP1990801A1
公开(公告)日：2008-11-12
申请号：EP07714670.2
申请日：2007-02-21
发明人： NAKAMURA, Kentarou , NOMURA, Eiji , MORI, Nobuyoshi , OTA, Kohei
CPC分类号： G11B7/1374 , G02B3/08 , G02B27/42 , G02B27/4238 , G02B27/4283 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： Provided are an optical pickup device, an objective optical element, and an optical information recording/reproducing device capable of recording and/or reproducing information to/from optical discs of different types in a compatible manner. The optical pickup device includes a first light source for emitting a first light flux, a second light source for emitting a second light flux, a third light source for emitting a third light flux, and an objective optical element. The objective optical element has an optical surface having at least two areas, i.e., a central area and a peripheral area around the central area. The central area has a first optical path difference giving structure and the peripheral area has a second optical path difference giving structure. The objective optical element gathers the light fluxes passing through the central area and the peripheral area of the objective optical element so as to respectively record and/or reproduce information onto/from an information recording surface of a predetermined optical disc. Furthermore, a focal distance of the objective optical element with respect to the third light flux satisfies a predetermined condition.
摘要翻译： 本发明提供在光学拾取装置的物镜光学元件，以及光学信息记录/再现可记录和/或从以兼容的方式的不同类型的光盘/再现信息的设备。 该光学拾取装置包括用于发射第一光通量，第二光源，用于发射的第二光束，第三光源，用于发射的第三光束的第一光源，和对物光学元件。 对物光学元件具有对具有至少两个区域，即中心区域和围绕中心区域的外围区域光学表面。 中央区域具有第一光程差赋予结构和周边区域具有第二光程差赋予结构。 对物光学元件集的光束穿过所述中心区域和对物光学元件的周边区域，以分别记录和/或从上信息记录预定的光盘的表面再现信息走上/。 进一步，对物光学元件的焦距相对于所述第三光束SATIS外资企业预定条件。
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