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公开(公告)号：US08018799B2
公开(公告)日：2011-09-13
申请号：US12084260
申请日：2006-09-19
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup device is provided. The optical pickup device includes a first, second, and third light emitting portions emitting light beams having first, second, and third wavelengths, respectively; an adjusting element for optical axes enabled to control the optical axis of the return light beam reflected by the optical recording media after output from the light emitting portion, and a single photo detector receiving the return light beams passing through the adjusting element for optical axes. The first light emitting portion and the second light emitting portion are arranged in such a way that the optical axis of the first light beam and the optical axis of the third light beam approximately coincide with each other. The adjusting element for optical axes controls the axis of the return light beam of said second light beam and the single photo detector receives the return light beams of the first light beam, the second light beam and the third light beam.
摘要翻译： 提供一种光拾取装置。 光拾取装置包括分别发射具有第一，第二和第三波长的光束的第一，第二和第三发光部分; 用于光轴的调节元件，能够控制从发光部分输出之后由光学记录介质反射的返回光束的光轴，以及接收通过光轴调整元件的返回光束的单个光电检测器。 第一发光部分和第二发光部分被布置成使得第一光束的光轴和第三光束的光轴彼此大致一致。 用于光轴的调节元件控制所述第二光束的返回光束的轴线，并且单个光电检测器接收第一光束，第二光束和第三光束的返回光束。
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公开(公告)号：US08134908B2
公开(公告)日：2012-03-13
申请号：US12513616
申请日：2008-02-19
IPC分类号： G11B7/00
CPC分类号： G02B5/1861 , G02B5/1819 , G02B5/1842 , G02B26/0808 , G11B7/1353 , G11B7/1381 , G11B2007/0006
摘要： An optical pickup with a simplified structure in which, according to the type of optical disc, diffracted light from three types of laser light can be directed efficiently onto a photodetector and appropriate focus control can be performed based on the signals detected by the photodetector, and a diffractive optical element that can be used in the optical pickup, which has a semiconductor laser 10 that can emit three types of laser light, a diffractive optical element 42 that diffracts the laser light reflected from the optical disc 31, and a single photodetector 43 that detects the diffracted light exiting the diffractive optical element 42. The diffractive optical element 42 is structured so that 0-order light is the maximal component of the diffracted light generated from each of two of three types of laser light, the two having close wavelengths (with a small wavelength difference), and +1-order light or −1-order light is the maximal component of the diffracted light generated from the remaining one type of laser light.
摘要翻译： 具有简化结构的光学拾取器，其中根据光盘的类型，可以将来自三种类型的激光的衍射光有效地引导到光电检测器上，并且可以基于由光电检测器检测的信号执行适当的聚焦控制，以及 可以用于具有能够发射三种激光的半导体激光器10的光学拾取器中的衍射光学元件，衍射从光盘31反射的激光的衍射光学元件42和单个光电检测器43 它检测离开衍射光学元件42的衍射光。衍射光学元件42被构造成使得0级光是从三种类型的激光中的两种中的两种中的每一种产生的衍射光的最大分量，其中两个具有接近的波长 （具有小的波长差），+ 1次光或-1次光是衍射光产生的最大分量fr 剩下的一种类型的激光。
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公开(公告)号：US20090135701A1
公开(公告)日：2009-05-28
申请号：US12084260
申请日：2006-09-19
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： [Problem] An objective is to provide an optical pickup device, for recording on or reproducing from optical medias enable to use for the light beams with plural kind of wavelength, in which plural light beams reflected by the optical medium can be detected by a common photo detector.[Solution Means] An optical pickup device includes a first light emitting portion emitting a first light beam with a first wavelength, a second light emitting portion emitting a second light beam with a second wavelength, a third light emitting portion emitting a third light beam with a third wavelength, an adjusting element for optical axes enable to control the optical axis of the return light beam reflected by the optical recording media after output from the light emitting portion, and a single photo detector receiving the return light beam passing through the adjusting element for optical axes; the first light emitting portion and the second light emitting portion are arranged in such a way that the optical axis of the first light beam and the optical axis of the third light beam approximately coincide with each other; the adjusting element for optical axes controls the axis of the return light beam of said second light beam; and the single photo detector receives the return light beams of the first light beam, the second light beam and the third light beam.
摘要翻译： 一个目的是提供一种光学拾取装置，用于在光学介质上进行记录或再现，使得能够使用具有多种波长的光束，其中由光学介质反射的多个光束可以被共同的 光电检测器 光学拾取装置包括：发射具有第一波长的第一光束的第一发光部分，发射具有第二波长的第二光束的第二发光部分;发射具有第二波长的第三光束的第三发光部分; 第三波长，用于光轴的调节元件能够控制从发光部分输出之后由光学记录介质反射的返回光束的光轴，以及接收通过调节元件的返回光束的单个光电检测器 用于光轴; 第一发光部分和第二发光部分被布置成使得第一光束的光轴和第三光束的光轴彼此大致一致; 用于光轴的调节元件控制所述第二光束的返回光束的轴线; 并且单个光电检测器接收第一光束，第二光束和第三光束的返回光束。
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4.发明申请公开(公告)号：US20080205235A1
公开(公告)日：2008-08-28
申请号：US12071131
申请日：2008-02-15
CPC分类号： G11B7/22 , G11B7/1376 , G11B7/13925
摘要： An optical-pickup-adjustment optical disk used for adjusting or producing an optical pickup device, includes a transparent protective substrate; and an optical-pickup-adjustment middle-depth information recording layer formed on a side of an inside surface of the transparent protective substrate, wherein the optical-pickup-adjustment middle-depth information recording layer is formed to have a middle depth which is a center of the maximum depth of the maximum-depth information recording layer prescribed by the optical disk standard and the minimum depth of the minimum-depth information recording layer prescribed by the optical disk standard.
摘要翻译： 用于调整或制造光拾取装置的光拾取调节光盘包括透明保护基片; 以及形成在透明保护基板的内侧的一侧的光拾取器调节中深信息记录层，其中，光拾取器调节中深信息记录层形成为具有中间深度 由光盘标准规定的最大深度信息记录层的最大深度的中心和由光盘标准规定的最小深度信息记录层的最小深度。
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公开(公告)号：US20100097917A1
公开(公告)日：2010-04-22
申请号：US12513616
申请日：2008-02-19
IPC分类号： G11B7/00
CPC分类号： G02B5/1861 , G02B5/1819 , G02B5/1842 , G02B26/0808 , G11B7/1353 , G11B7/1381 , G11B2007/0006
摘要： An optical pickup with a simplified structure in which, according to the type of optical disc, diffracted light from three types of laser light can be directed efficiently onto a photodetector and appropriate focus control can be performed based on the signals detected by the photodetector, and a diffractive optical element that can be used in the optical pickup, which has a semiconductor laser 10 that can emit three types of laser light, a diffractive optical element 42 that diffracts the laser light reflected from the optical disc 31, and a single photodetector 43 that detects the diffracted light exiting the diffractive optical element 42. The diffractive optical element 42 is structured so that 0-order light is the maximal component of the diffracted light generated from each of two of three types of laser light, the two having close wavelengths (with a small wavelength difference), and +1-order light or −1-order light is the maximal component of the diffracted light generated from the remaining one type of laser light.
摘要翻译： 具有简化结构的光学拾取器，其中根据光盘的类型，可以将来自三种类型的激光的衍射光有效地引导到光电检测器上，并且可以基于由光电检测器检测的信号执行适当的聚焦控制，以及 可以用于具有能够发射三种激光的半导体激光器10的光学拾取器中的衍射光学元件，衍射从光盘31反射的激光的衍射光学元件42和单个光电检测器43 它检测离开衍射光学元件42的衍射光。衍射光学元件42被构造成使得0级光是从三种类型的激光中的两种中的两种中的每一种产生的衍射光的最大分量，其中两个具有接近的波长 （具有小的波长差），+ 1次光或-1次光是衍射光产生的最大分量fr 剩下的一种类型的激光。
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公开(公告)号：US20090078857A1
公开(公告)日：2009-03-26
申请号：US11886588
申请日：2006-04-24
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/13 , G11B2007/0006
摘要： A laser emitting device (9) includes a light emitting portion (4) that emits light of a wavelength λ1 (approximately 405 nm), a light emitting portion (5) that emits light of a wavelength λ2 (approximately 650 nm), and a light emitting portion (6) that emits light of a wavelength λ1 (approximately 780 nm). The light emitting position of the light emitting portion (4) and the light emitting position of the light emitting portion (6) are approximately on the same position as seen in the direction of an optical axis of emitted light of the laser emitting device (9). An optical axis adjusting element (18) is provided for adjusting an optical axis of return light of at least one of the wavelengths among return lights of the wavelengths λ1, λ2 and λ3 so that respective return lights emitted by the light emitting portions (4, 5 and 6) of the laser emitting device (9) and reflected by an optical recording medium (16) are received by a common light detector (20).
摘要翻译： 激光发射装置（9）包括发射波长λ1（约405nm）的光的发光部分（4），发射波长λ2（约650nm）的光的发光部分（5），以及 发射波长λ1（约780nm）的光的发光部分（6）。 发光部分（4）的发光位置和发光部分（6）的发光位置大致处于与激光发射装置（9）的发射光的光轴方向相同的位置 ）。 提供光轴调节元件（18），用于调节波长λ1，λ2和λ3的返回光中至少一个波长的返回光的光轴，使得由发光部分（4， 激光发射装置（9）的反射光（5）和（6）被光记录介质（16）反射，由公共光检测器（20）接收。
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7.发明授权公开(公告)号：US07782730B2
公开(公告)日：2010-08-24
申请号：US12071131
申请日：2008-02-15
CPC分类号： G11B7/22 , G11B7/1376 , G11B7/13925
摘要： An optical-pickup-adjustment optical disk used for adjusting or producing an optical pickup device, includes a transparent protective substrate; and an optical-pickup-adjustment middle-depth information recording layer formed on a side of an inside surface of the transparent protective substrate, wherein the optical-pickup-adjustment middle-depth information recording layer is formed to have a middle depth which is a center of the maximum depth of the maximum-depth information recording layer prescribed by the optical disk standard and the minimum depth of the minimum-depth information recording layer prescribed by the optical disk standard.
摘要翻译： 用于调整或制造光拾取装置的光拾取调节光盘包括透明保护基片; 以及形成在透明保护基板的内侧的一侧的光拾取器调节中深信息记录层，其中，光拾取器调节中深信息记录层形成为具有中间深度 由光盘标准规定的最大深度信息记录层的最大深度的中心和由光盘标准规定的最小深度信息记录层的最小深度。
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公开(公告)号：US07652246B2
公开(公告)日：2010-01-26
申请号：US11886588
申请日：2006-04-24
CPC分类号： G11B7/1353 , G11B7/1275 , G11B7/13 , G11B2007/0006
摘要： A laser emitting device (9) includes a light emitting portion (4) that emits light of a wavelength λ1 (approximately 405 nm), a light emitting portion (5) that emits light of a wavelength λ2 (approximately 650 nm), and a light emitting portion (6) that emits light of a wavelength λ1 (approximately 780 nm). The light emitting position of the light emitting portion (4) and the light emitting position of the light emitting portion (6) are approximately on the same position as seen in the direction of an optical axis of emitted light of the laser emitting device (9). An optical axis adjusting element (18) is provided for adjusting an optical axis of return light of at least one of the wavelengths among return lights of the wavelengths λ1, λ2 and λ3 so that respective return lights emitted by the light emitting portions (4, 5 and 6) of the laser emitting device (9) and reflected by an optical recording medium (16) are received by a common light detector (20).
摘要翻译： 激光发射装置（9）包括发射波长λ1（约405nm）的光的发光部分（4），发射波长λ2（约650nm）的光的发光部分（5），以及 发射波长λ1（约780nm）的光的发光部分（6）。 发光部分（4）的发光位置和发光部分（6）的发光位置大致处于与激光发射装置（9）的发射光的光轴方向相同的位置 ）。 提供光轴调节元件（18），用于调节波长λ1，λ2和λ3的返回光中至少一个波长的返回光的光轴，使得由发光部分（4， 激光发射装置（9）的反射光（5）和（6）被光记录介质（16）反射，由公共光检测器（20）接收。
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公开(公告)号：US07848206B2
公开(公告)日：2010-12-07
申请号：US12084112
申请日：2006-10-17
CPC分类号： G11B7/1275 , G11B7/0903 , G11B7/1353 , G11B2007/0006
摘要： A diffractive optical element whose two diffraction gratings diffract three different wavelength light beams is provided. The diffractive optical element includes a first diffraction grating and a second diffraction grating that is located opposite the first one, and is configured in such a way that, among three different wavelength incident light beams, the diffraction efficiency in one light beam diffracted on the first diffraction grating is a predetermined value or less, and the diffraction efficiencies in the other two different incident light beams diffracted on the second diffraction grating are predetermined values or less. This arrangement can achieve a diffractive optical element capable of diffracting the three different wavelength light beams in a simple configuration.
摘要翻译： 提供了两个衍射光栅衍射三种不同波长的光束的衍射光学元件。 衍射光学元件包括与第一衍射光栅相对的第一衍射光栅和第二衍射光栅，并且被配置成使得在三个不同波长的入射光束中，在一个光束中衍射的衍射效率在第一 衍射光栅是预定值或更小，并且在第二衍射光栅上衍射的另外两个不同的入射光束中的衍射效率是预定值或更小。 这种布置可以实现能够以简单配置衍射三种不同波长光束的衍射光学元件。
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公开(公告)号：US20090097121A1
公开(公告)日：2009-04-16
申请号：US12084112
申请日：2006-10-17
IPC分类号： G02B27/44
CPC分类号： G11B7/1275 , G11B7/0903 , G11B7/1353 , G11B2007/0006
摘要： A diffractive optical element whose two diffraction gratings diffract three different wavelength light beams is provided. The diffractive optical element includes a first diffraction grating and a second diffraction grating that is located opposite the first one, and is configured in such a way that, among three different wavelength incident light beams, the diffraction efficiency in one light beam diffracted on the first diffraction grating is a predetermined value or less, and the diffraction efficiencies in the other two different incident light beams diffracted on the second diffraction grating are predetermined values or less. This arrangement can achieve a diffractive optical element capable of diffracting the three different wavelength light beams in a simple configuration.
摘要翻译： 提供了两个衍射光栅衍射三种不同波长的光束的衍射光学元件。 衍射光学元件包括与第一衍射光栅相对的第一衍射光栅和第二衍射光栅，并且被配置成使得在三个不同波长的入射光束中，在一个光束中衍射的衍射效率在第一 衍射光栅是预定值或更小，并且在第二衍射光栅上衍射的另外两个不同的入射光束中的衍射效率是预定值或更小。 这种布置可以实现能够以简单配置衍射三种不同波长光束的衍射光学元件。
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