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1. 发明授权

US07889620B2 Optical pickup device and optical disk device 有权
标题翻译：光拾取装置和光盘装置
公开(公告)号：US07889620B2
公开(公告)日：2011-02-15
申请号：US12187900
申请日：2008-08-07
申请人： Masaharu Fukakusa , Hideki Yoshinaka , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
发明人： Masaharu Fukakusa , Hideki Yoshinaka , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/0909 , G11B7/131 , G11B7/1362 , G11B2007/0006
摘要： A light source emits light with a first wavelength and light with a second wavelength longer than the first wavelength toward an optical disk from adjacent positions. An optical receiver detects light reflected from the optical disk. An astigmatism-generating element generates light used for focus control in a condition where a focusing position on one of two perpendicular cross sections including an optical axis of the light reflected from the optical disk is located ahead of the optical receiver and a focusing position on the other cross section is located behind the optical receiver are included. The astigmatism-generating element is a Fresnel mirror configured to include a plurality of reflecting mirrors. A level difference between the reflecting mirrors adjacent to each other is distributed in a range from a depth of substantially (natural number/2) times the first wavelength to (natural number/2) times the second wavelength.
摘要翻译：光源将第一波长的光和比第一波长长的第二波长的光从相邻的位置发射到光盘。光接收器检测从光盘反射的光。散光产生元件产生用于聚焦控制的光，其中在包括从光盘反射的光的光轴的两个垂直横截面之一上的聚焦位置位于光接收器之前的聚焦位置和其他横截面位于光接收器后面。散光产生元件是被配置为包括多个反射镜的菲涅耳镜。彼此相邻的反射镜之间的电平差分布在从第一波长的大致（自然数/ 2）倍到第二波长的（自然数/ 2）倍的范围内。

2. 发明申请

US20090040910A1 Optical pickup device and optical disk device 有权
标题翻译：光拾取装置和光盘装置
公开(公告)号：US20090040910A1
公开(公告)日：2009-02-12
申请号：US12187900
申请日：2008-08-07
申请人： Masaharu Fukakusa , Hideki Yoshinaka , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
发明人： Masaharu Fukakusa , Hideki Yoshinaka , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
IPC分类号： G11B7/135 , G11B7/00
CPC分类号： G11B7/1275 , G11B7/0909 , G11B7/131 , G11B7/1362 , G11B2007/0006
摘要： A light source emits light with a first wavelength and light with a second wavelength longer than the first wavelength toward an optical disk from adjacent positions. An optical receiver detects light reflected from the optical disk. An astigmatism-generating element generates light used for focus control in a condition where a focusing position on one of two perpendicular cross sections including an optical axis of the light reflected from the optical disk is located ahead of the optical receiver and a focusing position on the other cross section is located behind the optical receiver are included. The astigmatism-generating element is a Fresnel mirror configured to include a plurality of reflecting mirrors. A level difference between the reflecting mirrors adjacent to each other is distributed in a range from a depth of substantially (natural number/2) times the first wavelength to (natural number/2) times the second wavelength
摘要翻译：光源将第一波长的光和比第一波长长的第二波长的光从相邻的位置发射到光盘。光接收器检测从光盘反射的光。散光产生元件产生用于聚焦控制的光，其中包括从光盘反射的光的光轴的两个垂直横截面之一上的聚焦位置位于光接收器之前的聚焦位置和其他横截面位于光接收器后面。散光产生元件是被配置为包括多个反射镜的菲涅耳镜。彼此相邻的反射镜之间的电平差分布在从第一波长的大致（自然数/ 2）倍到第二波长的（自然数/ 2）倍的深度的范围内

3. 发明授权

US08270265B2 Optical pickup device and optical disk device 失效
标题翻译：光拾取装置和光盘装置
公开(公告)号：US08270265B2
公开(公告)日：2012-09-18
申请号：US12187167
申请日：2008-08-06
申请人： Hideki Yoshinaka , Masaharu Fukakusa , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
发明人： Hideki Yoshinaka , Masaharu Fukakusa , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
IPC分类号： G11B7/00
CPC分类号： G11B7/0909 , G11B7/131 , G11B7/1356 , G11B7/1362 , G11B2007/0006
摘要： An optical pickup device or an optical disk device includes: a light source 11 that emits a laser beam toward an optical disk 25; an optical receiver 18 that detects light reflected from the optical disk 25; and an astigmatism-generating element 31 that generates light used for focus control in a condition where a focusing position on one of two perpendicular cross sections including an optical axis of the light reflected from the optical disk 25 is located ahead of the optical receiver 18 and a focusing position on the other cross section is located behind the optical receiver 18. The astigmatism-generating element 31 is a Fresnel mirror 31a configured to include a plurality of reflecting mirrors, and an imaginary surface 31d that connects the tips of the reflecting mirrors is curved in a concave shape toward a light incidence side.
摘要翻译：光拾取装置或光盘装置包括：朝向光盘25发射激光束的光源11; 检测从光盘25反射的光的光接收器18; 以及产生用于聚焦控制的光的像散生成元件31，其中在包括从光盘25反射的光的光轴的两个垂直横截面中的一个垂直截面上的聚焦位置位于光接收器18的前方，在另一横截面上的聚焦位置位于光接收器18的后面。像散生成元件31是被配置为包括多个反射镜的菲涅尔镜31a，并且连接反射镜的前端的虚拟表面31d 弯曲成朝向光入射侧的凹形。

4. 发明申请

US20090040893A1 Optical pickup device and optical disk device 失效
标题翻译：光拾取装置和光盘装置
公开(公告)号：US20090040893A1
公开(公告)日：2009-02-12
申请号：US12187167
申请日：2008-08-06
申请人： Hideki Yoshinaka , Masaharu Fukakusa , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
发明人： Hideki Yoshinaka , Masaharu Fukakusa , Mayumi Tsukamoto , Satoshi Nagata , Eizo Ono
IPC分类号： G11B5/58
CPC分类号： G11B7/0909 , G11B7/131 , G11B7/1356 , G11B7/1362 , G11B2007/0006
摘要： An optical pickup device or an optical disk device includes: a light source 11 that emits a laser beam toward an optical disk 25; an optical receiver 18 that detects light reflected from the optical disk 25; and an astigmatism-generating element 31 that generates light used for focus control in a condition where a focusing position on one of two perpendicular cross sections including an optical axis of the light reflected from the optical disk 25 is located ahead of the optical receiver 18 and a focusing position on the other cross section is located behind the optical receiver 18. The astigmatism-generating element is a Fresnel mirror 31a configured to include a plurality of reflecting mirrors, and an imaginary surface 31d that connects the tips of the reflecting mirrors is curved in a concave shape toward a light incidence side.
摘要翻译：光拾取装置或光盘装置包括：朝向光盘25发射激光束的光源11; 检测从光盘25反射的光的光接收器18; 以及产生用于聚焦控制的光的像散生成元件31，其中在包括从光盘25反射的光的光轴的两个垂直横截面中的一个垂直截面上的聚焦位置位于光接收器18的前方，在另一横截面上的聚焦位置位于光接收器18的后面。散光产生元件是被配置为包括多个反射镜的菲涅耳镜31a，并且连接反射镜的末端的假想表面31d是弯曲的朝向光入射侧呈凹形。

5. 发明申请

US20080031103A1 OBJECTIVE LENS, OPTICAL PICK-UP DEVICE, AND OPTICAL DISK DEVICE 有权
标题翻译：目标镜头，光学拾取器件和光盘设备
公开(公告)号：US20080031103A1
公开(公告)日：2008-02-07
申请号：US11866837
申请日：2007-10-03
申请人： Shogo HORINOUCHI , Takashi Haruguchi , Taiichi Mori , Hideki Yoshinaka , Nobuyuki Tokubuchi , Shin Ishibashi , Hitoshi Asahi
发明人： Shogo HORINOUCHI , Takashi Haruguchi , Taiichi Mori , Hideki Yoshinaka , Nobuyuki Tokubuchi , Shin Ishibashi , Hitoshi Asahi
IPC分类号： G11B7/00
CPC分类号： G11B7/1362 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/121 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1374 , G11B7/139 , G11B7/13925 , G11B7/22 , G11B2007/0006
摘要： An optical pickup device includes light sources for respectively emitting a plurality of different wavelengths of light, a unit structured for causing at least a part of the light emitted from the light sources to pass a same optical path; and a focusing unit for focusing the light. The focusing unit includes at least first and second focusing parts, the first focusing part being to focus mainly a wavelength of light different from a wavelength of light to be mainly focused by the second focusing part. The optical pickup device and optical disk device are capable of realizing at least one of thickness reduction, size reduction and suppression against characteristic deterioration even where coping with various wavelengths of laser including a blue laser.
摘要翻译：一种光学拾取装置包括用于分别发射多个不同波长的光的光源，构成为使得从光源发射的光的至少一部分通过相同光路的单元; 以及用于聚焦光的聚焦单元。聚焦单元至少包括第一和第二聚焦部分，第一聚焦部分主要聚焦不同于由第二聚焦部分主要聚焦的光的波长的光的波长。光拾取装置和光盘装置能够实现厚度减小，尺寸减小和抑制特性劣化中的至少一个，即使在应对包括蓝色激光的各种波长激光的情况下。

6. 发明申请

US20060028935A1 Optical pickup device, optical disk apparatus, and light-receiving unit 审中-公开
标题翻译：光拾取装置，光盘装置和光接收单元
公开(公告)号：US20060028935A1
公开(公告)日：2006-02-09
申请号：US11194753
申请日：2005-08-02
申请人： Taiichi Mori , Shogo Horinouchi , Hideki Yoshinaka , Takashi Haruguchi , Hideki Ohyama , Shin Ishibashi , Junya Aso , Tsuyoshi Yoshimoto , Youichi Maehara
发明人： Taiichi Mori , Shogo Horinouchi , Hideki Yoshinaka , Takashi Haruguchi , Hideki Ohyama , Shin Ishibashi , Junya Aso , Tsuyoshi Yoshimoto , Youichi Maehara
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/123 , G11B7/1275 , G11B7/1359 , G11B7/1369 , G11B7/1376 , G11B7/13925 , G11B2007/0006 , G11B2007/13727
摘要： An optical pickup device, comprises a first light source emitting light with a short wavelength; a second light source emitting s light with a wavelength longer than that of the first light source; an optical member guiding the light from the first light source and the light from the second light source on almost the same optical path; a focusing member focusing the light from the optical member; a movable lens provided between the optical member and the focusing lens; and a drive member driving the movable lens, wherein a position of the lens when at least one of recording and reproducing of information is carried out on a medium using the light from the first light source is made different from a position of the lens when at least one of the recording and reproducing of information is carried out on the medium using the light from the second light source.
摘要翻译：一种光学拾取装置，包括发射短波长的光的第一光源; 发射波长比第一光源的波长的光的第二光源; 光学构件，在几乎相同的光路上引导来自第一光源的光和来自第二光源的光; 聚焦构件，聚焦来自光学构件的光; 设置在所述光学构件和所述聚焦透镜之间的可移动透镜; 以及驱动所述可移动透镜的驱动构件，其中当使用来自所述第一光源的光在介质上进行信息的记录和再现中的至少一个时所述透镜的位置与所述透镜在位置处的位置不同使用来自第二光源的光在介质上进行信息的记录和再现中的至少一个。

7. 发明授权

US07813235B2 Objective lens, optical pick-up device, and optical disk device 有权
标题翻译：物镜，光学拾取装置和光盘装置
公开(公告)号：US07813235B2
公开(公告)日：2010-10-12
申请号：US11866837
申请日：2007-10-03
申请人： Shogo Horinouchi , Takashi Haruguchi , Taiichi Mori , Hideki Yoshinaka , Nobuyuki Tokubuchi , Shin Ishibashi , Hitoshi Asahi
发明人： Shogo Horinouchi , Takashi Haruguchi , Taiichi Mori , Hideki Yoshinaka , Nobuyuki Tokubuchi , Shin Ishibashi , Hitoshi Asahi
IPC分类号： G11B7/00
CPC分类号： G11B7/1362 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/121 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1374 , G11B7/139 , G11B7/13925 , G11B7/22 , G11B2007/0006
摘要： An optical pickup device includes light sources for respectively emitting a plurality of different wavelengths of light, a unit structured for causing at least a part of the light emitted from the light sources to pass a same optical path; and a focusing unit for focusing the light. The focusing unit includes at least first and second focusing parts, the first focusing part being to focus mainly a wavelength of light different from a wavelength of light to be mainly focused by the second focusing part. The optical pickup device and optical disk device are capable of realizing at least one of thickness reduction, size reduction and suppression against characteristic deterioration even where coping with various wavelengths of laser including a blue laser.
摘要翻译：一种光学拾取装置包括用于分别发射多个不同波长的光的光源，构成为使得从光源发射的光的至少一部分通过相同光路的单元; 以及用于聚焦光的聚焦单元。聚焦单元至少包括第一和第二聚焦部分，第一聚焦部分主要聚焦不同于由第二聚焦部分主要聚焦的光的波长的光的波长。光拾取装置和光盘装置能够实现厚度减小，尺寸减小和抑制特性劣化中的至少一个，即使在应对包括蓝色激光的各种波长激光的情况下。

8. 发明授权

US07196981B2 Optical disc apparatus 有权
标题翻译：光盘装置
公开(公告)号：US07196981B2
公开(公告)日：2007-03-27
申请号：US10390776
申请日：2003-03-19
申请人： Hideki Yoshinaka , Shogo Horinouchi , Shin Ishibashi , Fuminobu Furukawa
发明人： Hideki Yoshinaka , Shogo Horinouchi , Shin Ishibashi , Fuminobu Furukawa
IPC分类号： G11B7/095
CPC分类号： G11B7/1381 , G11B7/0901 , G11B7/0912 , G11B7/094 , G11B7/122 , G11B7/123 , G11B7/1353 , G11B7/1365 , G11B7/22 , G11B11/10543
摘要： Provided is a focus and tracking control method for an optical pick-up apparatus which is used for recording and reproduction of a small-sized optical disc and which can carry out stable focus control and stable tracking control. A focus control method for an optical pick-up apparatus comprising a light source, an objective lens, a light receiving means having divided four light receiving zones and a polarizing means having divided for lattice zones, characterized in that when the reflected light beam is incident upon the four light receiving zones by way of the four lattice zones, focus control is carried out in accordance with a difference signal between the groups, in the radial direction, of the four light receiving zones which are divided into two groups in the radial direction by the division line in parallel with the tangential direction, respectively through the four lattice zones which are divided into two groups in the tangential direction by a division line in parallel with the radial direction. Further, the tracking control for the pick-up apparatus is characterized in that tracking control is carried out in accordance with a difference signal between two groups in the tangential direction.
摘要翻译：提供了一种用于光学拾取装置的聚焦和跟踪控制方法，其用于小型光盘的记录和再现，并且其可以执行稳定的聚焦控制和稳定的跟踪控制。一种用于光学拾取装置的聚焦控制方法，包括光源，物镜，具有分开的四个光接收区域的光接收装置和用于格栅区域的偏振装置，其特征在于，当反射光束入射时在四个光接收区域之间通过四个格子区域进行聚焦控制，根据沿径向方向分成两组的四个光接收区域的径向组之间的差分信号进行聚焦控制通过与切线方向平行的分割线，分别通过与径向平行的分割线沿切线方向分成两组的四个格子区。此外，拾取装置的跟踪控制的特征在于，根据沿切线方向的两组之间的差分信号执行跟踪控制。

9. 发明申请

US20050007906A1 Objective lens, optical pick-up device, and optical disk device 失效
标题翻译：物镜，光学拾取装置和光盘装置
公开(公告)号：US20050007906A1
公开(公告)日：2005-01-13
申请号：US10885415
申请日：2004-07-07
申请人： Shogo Horinouchi , Takashi Haruguchi , Taiichi Mori , Hideki Yoshinaka , Nobuyuki Tokubuchi , Shin Ishibashi , Hitoshi Asahi
发明人： Shogo Horinouchi , Takashi Haruguchi , Taiichi Mori , Hideki Yoshinaka , Nobuyuki Tokubuchi , Shin Ishibashi , Hitoshi Asahi
IPC分类号： G11B7/00 , G11B7/09 , G11B7/095 , G11B7/12 , G11B7/125 , G11B7/135 , G11B7/22
CPC分类号： G11B7/1362 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/121 , G11B7/123 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1374 , G11B7/139 , G11B7/13925 , G11B7/22 , G11B2007/0006
摘要： To provide an optical pickup device and optical disk device capable of realizing at least one of thickness reduction, size reduction and suppression against characteristic deterioration even where coping with various wavelengths of laser including a blue laser. An optical pickup device comprising light sources for respectively emitting a plurality of different wavelengths of light, unit structured for causing at least a part of the light emitted from the light sources to pass a same optical path; and focusing unit for focusing the light. The focusing unit includes at least first and second focusing parts, the first focusing part being to focus mainly a wavelength of light different from a wavelength of light to be mainly focused by the second focusing part.
摘要翻译：为了提供即使在应对包括蓝色激光在内的各种波长激光的情况下，也能够实现厚度减小，尺寸减小和防止特性劣化中的至少一个的光学拾取装置和光盘装置。一种光拾取装置，包括用于分别发射多个不同波长的光的光源，其单元构造成使得从光源发射的光的至少一部分通过相同的光路; 以及用于聚焦光的聚焦单元。聚焦单元至少包括第一和第二聚焦部分，第一聚焦部分主要聚焦不同于由第二聚焦部分主要聚焦的光的波长的光的波长。

10. 发明授权

US5777975A Optical pickup incorporating an integrated optical guide member 失效
标题翻译：并入有集成光导元件的光拾取器
公开(公告)号：US5777975A
公开(公告)日：1998-07-07
申请号：US603766
申请日：1996-02-20
申请人： Syogo Horinouchi , Shigeki Takeuchi , Hideki Yoshinaka , Toshihiro Koga , Kazuhiko Higo , Hidehiro Kugisaki , Fumiaki Beppu , Jiro Mimasa
发明人： Syogo Horinouchi , Shigeki Takeuchi , Hideki Yoshinaka , Toshihiro Koga , Kazuhiko Higo , Hidehiro Kugisaki , Fumiaki Beppu , Jiro Mimasa
IPC分类号： G02B6/32 , G02B6/42 , G02B27/28 , G11B7/09 , G11B7/12 , G11B7/13 , G11B7/135 , G11B7/22 , G11B11/105 , G11B7/00
CPC分类号： G11B7/1356 , G02B27/283 , G11B11/10543 , G11B7/123 , G11B7/131 , G11B7/1353 , G11B7/1372 , G11B7/0903 , G11B7/0909 , G11B7/094 , G11B7/0943 , G11B7/22
摘要： A light source beam is incident on an optical guide block and converted in its diffusion angle by a diffusion angle conversion film on a second inclined portion of the optical guide block, and reflected by a reflecting film on a first inclined portion. Then, the light is incident on a first beam splitter film on the second inclined portion and split into transmitted light and reflected light. The reflected light is focused an optical disk light reflected from the disc passes through the first beam splitter film, and then is transmitted and reflected by a second beam splitter film on a third inclined portion. This transmitted light is incident on a polarization plane conversion plate between the third inclined portion and a fourth inclined portion, so that P and S polarization components and are transmitted through and reflected by its polarized light splitting portion, respectively. The S polarization component is reflected by its reflecting surface toward light-receiving elements. The reflected light from the second beam splitter film is reflected by a focus error detection element on the second inclined portion, and an incident light-splitting point of the polarized light splitting portion is located between the center of the optical guide block and the light-receiving elements, thereby reducing a light amount loss and also increasing a Kerr rotation angle so that an RF reproduction signal with a high C/N ratio can be obtained.
摘要翻译：光源光束入射到光导块上，并且通过扩散角转换膜在光导块的第二倾斜部分上被扩散角度转换，并由第一倾斜部分上的反射膜反射。然后，光入射到第二倾斜部分上的第一分束器膜上并分裂成透射光和反射光。反射光被聚焦，从盘反射的光盘光通过第一分束器膜，然后在第三倾斜部分上被第二分束器膜透射和反射。该透射光入射到第三倾斜部分和第四倾斜部分之间的偏振平面转换板上，使得P和S偏振分量分别透射并由其偏振光分离部分反射。 S偏振分量被其反射表面反射到光接收元件。来自第二分束器膜的反射光由第二倾斜部分上的聚焦误差检测元件反射，并且偏振光分离部分的入射光分离点位于光导块的中心和发光元件之间，接收元件，从而减少光量损失并且还增加克尔旋转角度，使得可以获得具有高C / N比的RF再现信号。

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