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1. 发明授权

US5986779A Multiple focus lens, an optical head apparatus and an optical information recording-reproducing apparatus 失效
标题翻译：多焦点透镜，光学头装置和光学信息记录再生装置
公开(公告)号：US5986779A
公开(公告)日：1999-11-16
申请号：US695397
申请日：1996-08-12
申请人： Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Sadao Mizuno
发明人： Yasuhiro Tanaka , Michihiro Yamagata , Yoshiaki Komma , Sadao Mizuno
IPC分类号： G02B5/18 , G02B27/00 , G11B7/00 , G11B7/135 , G02B5/32
CPC分类号： G02B5/1895 , G02B27/0037 , G02B27/4238 , G02B5/1876 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： Coma of an objective lens occurs depending on the lens-forming condition when plural disks of different substrate thickness are recorded and reproduced. An objective lens according to this invention is not influenced by the coma even if the thickness of the substrates is changed. For this purpose, a diffraction grating whose aberration is corrected is formed on the first side of an aspheric objective lens. Due to this correction, light beams having different diffraction orders, e.g. 0th order diffracted light and +1st order diffracted light, are focused respectively on two kinds of substrates of different thickness. The whole objective lens is tilted to correct its axial coma, and the tilt angle is predetermined to be substantially identical with respect to plural substrates which are different in thickness.
摘要翻译：当记录和再现不同基板厚度的多个盘时，根据透镜形成条件发生物镜的昏迷。即使基板的厚度发生变化，根据本发明的物镜也不受彗形影响。为此目的，在非球面物镜的第一侧上形成像差校正的衍射光栅。由于这种校正，具有不同衍射级的光束，例如， 0级衍射光和+ 1级衍射光分别聚焦在两种不同厚度的基板上。整个物镜倾斜以校正其轴向彗差，并且倾斜角度相对于厚度不同的多个基板预定为基本相同。

2. 发明授权

US07248409B2 Optical element, optical lens, optical head apparatus, optical information apparatus, computer, optical information medium player, car navigation system, optical information medium recorder, and optical information medium server 有权
标题翻译：光学元件，光学透镜，光学头装置，光学信息装置，计算机，光学信息媒体播放器，汽车导航系统，光学信息媒体记录器和光学信息媒体服务器
公开(公告)号：US07248409B2
公开(公告)日：2007-07-24
申请号：US10716990
申请日：2003-11-18
申请人： Yoshiaki Komma , Sadao Mizuno , Yasuhiro Tanaka
发明人： Yoshiaki Komma , Sadao Mizuno , Yasuhiro Tanaka
IPC分类号： G02B5/18
CPC分类号： G11B7/1369 , G02B5/1842 , G02B27/4238 , G02B27/4277 , G02B27/4294 , G11B7/0948 , G11B7/1353 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B7/13925 , G11B2007/0006
摘要： An optical lens includes a hologram, a refractive lens, and a phase level difference. The hologram has a sawtooth shape grating having a sawtooth shape in cross-section, and generates +2nd-order diffracted light most strongly with respect to blue light and +1st-order diffracted light most strongly with respect to red light, by setting a height of the sawtooth shape grating. The +2nd-order diffracted light of blue light is condensed through a substrate with a thickness t1, and the +1st-diffracted light of red light is condensed through a substrate with a thickness t2 (t1
摘要翻译：光学透镜包括全息图，折射透镜和相位差。全息图具有锯齿形的横截面形状的锯齿状光栅，相对于红色光最强烈地产生相对于蓝色光和+ 1级衍射光的+ 2级衍射光，通过设定高度的锯齿形光栅。蓝色光的+ 2级衍射光通过厚度为t 1的基板凝结，红光的+第1衍射光通过厚度t 2（t 1

3. 发明授权

US07760612B2 Optical element and optical head device using it, and optical information device using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information device 有权
标题翻译：使用它的光学元件和光学头装置，以及使用该光学头装置的光学信息装置，以及使用该光学信息装置的计算机，光盘播放器，汽车导航系统，光盘记录器和光盘服务器
公开(公告)号：US07760612B2
公开(公告)日：2010-07-20
申请号：US10504373
申请日：2003-01-30
申请人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
发明人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
IPC分类号： G11B7/00
CPC分类号： G11B7/1356 , G11B7/1275 , G11B7/1362 , G11B7/1365 , G11B7/1374 , G11B7/1378 , G11B7/1392 , G11B7/1395 , G11B2007/0006
摘要： Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs using an optical head capable of recording or reproducing high-density optical disks. An optical element (8) is provided between a first and second laser light source and an objective lens (18) for the purpose of converting a wave front of a second optical beam 32. Furthermore, the optical element (8) and the objective lens (18) are fixed to move as a single piece.
摘要翻译：提供具有大数值孔径（NA）的物镜，本发明使用能够记录或再现高密度光盘的光学头记录或播放诸如CD和DVD的常规光盘。为了转换第二光束32的波前，光学元件（8）设置在第一和第二激光源与物镜（18）之间。此外，光学元件（8）和物镜（18）固定成单件移动。

4. 发明授权

US07486606B2 Optical head and optical information apparatus for recording or reproducing information on an information recording medium 有权
标题翻译：用于在信息记录介质上记录或再现信息的光头和光信息装置
公开(公告)号：US07486606B2
公开(公告)日：2009-02-03
申请号：US11151272
申请日：2005-06-14
申请人： Kousei Sano , Yoshiaki Komma , Sadao Mizuno
发明人： Kousei Sano , Yoshiaki Komma , Sadao Mizuno
IPC分类号： G11B7/00
CPC分类号： G11B7/1353
摘要： An optical head which is capable of realizing a stable tracking control, even if the rotational center of an information recording medium is not located on the extension line of the transfer directions of a light-concentrating element, includes: a semiconductor laser which emits a beam of light; an objective lens which concentrates the beam of light on an optical disk; a transfer mechanism which transfers the objective lens between the outermost circumference and the innermost circumference of the recording area of the optical disk along the optical disk; and a photo-detector which detects a beam of light that returns from the optical disk. The photo-detector includes a plurality of areas which are divided by a division line. The division line is set parallel to the tangential directions of the track in a predetermined position on the transfer line of the objective lens between the outermost circumference and the innermost circumference of the recording area, and the plurality of areas are divided, by a lateral division line which intersects the division line, into a first area on which a beam of light that mainly includes a tracking component is incident and a second area on which a beam of light that does not include the tracking component is incident.
摘要翻译：即使信息记录介质的旋转中心不位于聚光元件的传送方向的延长线上，也能够实现稳定的跟踪控制的光学头包括：发射光束的半导体激光器的光将光束聚集在光盘上的物镜; 传送机构，其沿着光盘在光盘的记录区域的最外圆周和最内圆周之间传送物镜; 以及光检测器，其检测从光盘返回的光束。光检测器包括由划分线划分的多个区域。分割线与记录区域的最外圆周和最内圆周之间的物镜的传送线上的预定位置处的轨道的切线方向平行设置，并且通过横向划分来划分多个区域与分割线相交的第一区域进入主要包括跟踪分量的光束入射的第一区域和不包括跟踪组件的光束入射的第二区域。

5. 发明授权

US07330419B2 Optical head device and optical information apparatus using the same 有权
标题翻译：光头装置及其使用的光信息装置
公开(公告)号：US07330419B2
公开(公告)日：2008-02-12
申请号：US11443751
申请日：2006-05-31
申请人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
发明人： Seiji Nishino , Hidenori Wada , Yoshiaki Komma , Sadao Mizuno , Keiichi Matsuzaki
IPC分类号： G11B7/00
CPC分类号： G11B7/1398 , G11B7/1353 , G11B7/1367 , G11B7/1372 , G11B7/1378 , G11B7/13922 , G11B7/13925
摘要： An optical head device includes a focusing optical system for focusing a laser beam emitted from a semiconductor laser light source on an optical information medium with an objective lens. A chromatic aberration correction element for correcting chromatic aberration occurring in the objective lens is provided between the semiconductor laser light source and the optical information medium. A light distribution correction element in which the transmittance increases with the distance from the center of the aperture surface of the objective lens is provided so as to correct a reduction of the intensity of the light incident on the aperture surface of the objective lens with the distance from the center of the aperture surface.
摘要翻译：光头装置包括聚焦光学系统，用于将从半导体激光光源发射的激光束聚焦在具有物镜的光信息介质上。在半导体激光光源和光信息介质之间设置用于校正物镜中出现的色像差的色像差校正元件。提供透光率随着距离物镜的孔径表面的中心的距离而增加的光分布校正元件，以便校正入射到物镜的孔表面上的光的强度的降低，距离从孔表面的中心。

6. 发明申请

US20050117497A1 Optical element and optical head device using it and optical information device using this optical head device, and computer, optical disk player car navigation system, optical disk recorder and optical disk server using this optical information device 有权
标题翻译：使用它的光学元件和光学头装置和使用该光学头装置的光学信息装置，以及使用该光学信息装置的计算机，光盘播放器汽车导航系统，光盘记录器和光盘服务器
公开(公告)号：US20050117497A1
公开(公告)日：2005-06-02
申请号：US10504373
申请日：2003-01-30
申请人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
发明人： Yoshiaki Komma , Sadao Mizuno , Kousei Sano
IPC分类号： G11B7/00 , G11B7/125
CPC分类号： G11B7/1356 , G11B7/1275 , G11B7/1362 , G11B7/1365 , G11B7/1374 , G11B7/1378 , G11B7/1392 , G11B7/1395 , G11B2007/0006
摘要： Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs using an optical head capable of recording or reproducing high-density optical disks. An optical element (8) is provided between a first and second laser light source and an objective lens (18) for the purpose of converting a wave front of a second optical beam 32. Furthermore, the optical element (8) and the objective lens (18) are fixed to move as a single piece.
摘要翻译：提供具有大数值孔径（NA）的物镜，本发明使用能够记录或再现高密度光盘的光学头记录或播放诸如CD和DVD的常规光盘。为了转换第二光束32的波前，光学元件（8）设置在第一和第二激光光源与物镜（18）之间。此外，光学元件（8）和物镜（18）被固定成单件移动。

7. 发明授权

US5912868A Optical head for reproducing data from first and second optical disks 失效
标题翻译：用于从第一和第二光盘再现数据的光学头
公开(公告)号：US5912868A
公开(公告)日：1999-06-15
申请号：US918295
申请日：1997-08-25
申请人： Hideki Hayashi , Sadao Mizuno , Noboru Ito , Kenichiro Urairi , Yoshiaki Komma
发明人： Hideki Hayashi , Sadao Mizuno , Noboru Ito , Kenichiro Urairi , Yoshiaki Komma
IPC分类号： G11B7/14 , G11B7/00 , G11B7/12 , G11B7/125 , G11B7/135
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/127 , G11B7/1356 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B2007/13727
摘要： An optical head for reproducing data from first and second optical disks which are different from each other in at least one of a base material thickness and an available wavelength, includes: a first light source for emitting a first light beam, the first light beam being used for reproducing data from the first optical disk: an optical system designed to converge the first light beam onto the first optical disk in accordance with a base material thickness and an available wavelength of the first optical disk: and a second light source for emitting a second light beam, the second light beam being used for reproducing data from the second optical disk, wherein an optical path length between the second light source and the optical system is different from an optical path length between the first light source and the optical system, and wherein the optical system converges the second light beam onto the second optical disk.
摘要翻译：一种用于从基材厚度和可用波长中的至少一个中彼此不同的第一和第二光盘再现数据的光学头包括：用于发射第一光束的第一光源，第一光束是用于从第一光盘再现数据：被设计为根据第一光盘的基材厚度和可用波长将第一光束会聚到第一光盘上的光学系统，以及用于发射第一光盘的第二光源第二光束，第二光束用于从第二光盘再现数据，其中第二光源和光学系统之间的光路长度不同于第一光源和光学系统之间的光程长度，并且其中所述光学系统将所述第二光束会聚到所述第二光盘上。

8. 发明授权

US5345072A Focus detection device for reading information from an optical recording medium 失效
标题翻译：用于从光学记录介质读取信息的对焦检测装置
公开(公告)号：US5345072A
公开(公告)日：1994-09-06
申请号：US997293
申请日：1992-12-23
申请人： Hideki Hayashi , Shinichi Tanaka , Sadao Mizuno , Noboru Ito , Yoshiaki Komma
发明人： Hideki Hayashi , Shinichi Tanaka , Sadao Mizuno , Noboru Ito , Yoshiaki Komma
IPC分类号： G11B7/09 , G11B7/135 , G01J1/20 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/0912
摘要： A focus detection device for use in a focus detection device includes a main light source and two auxiliary light sources. These auxiliary light sources are offset to the main light source along the optical axis of the main optical system while being symmetrically positioned perpendicular to the optical axis. A exposure units having apertures are provided above the two auxiliary light sources for constricting the amount of auxiliary lights so that the convergence of the auxiliary beams on the optical disk is less than that of the main light beam. As a result, an optical system with a broad focus error detection range can be constructed while increasing the convergence of the main light beam.
摘要翻译：用于焦点检测装置的焦点检测装置包括主光源和两个辅助光源。这些辅助光源沿着主光学系统的光轴偏移到主光源，同时垂直于光轴对称定位。具有孔径的曝光单元设置在两个辅助光源上方，用于限制辅助光的量，使得辅助光束在光盘上的会聚小于主光束的会聚。结果，可以在增加主光束的会聚的同时构造具有宽聚焦误差检测范围的光学系统。

9. 发明授权

US07889622B2 Optical head for optical recorder/reproducer 有权
标题翻译：光学记录器/再现器用光头
公开(公告)号：US07889622B2
公开(公告)日：2011-02-15
申请号：US11597996
申请日：2005-05-31
申请人： Hidenori Wada , Sadao Mizuno , Yoshiaki Komma , Keiichi Matsuzaki
发明人： Hidenori Wada , Sadao Mizuno , Yoshiaki Komma , Keiichi Matsuzaki
IPC分类号： G11B7/00
CPC分类号： G11B7/12 , G11B7/1356
摘要： An optical head for recording or reproducing a signal on or from an optical recording medium including a light source, an objective lens for condensing light emitted from the light source to the optical recording medium, and a light-separating device arranged between the light source and the objective lens in order to separate the light reflected from the optical recording medium from the light emitted from the light source. The light-separating device includes a first glass, a multilayer film formed on the first glass, and an adhesive layer arranged on the multilayer film in order to bond a second glass onto the multilayer film. The majority of the light emitted from the light source enters into the light-separating device through the first glass and is reflected by the multilayer film.
摘要翻译：一种用于在包括光源的光记录介质上或从光记录介质上记录或再现信号的光学头，用于将从光源发射的光聚焦到光记录介质的物镜，以及布置在光源和物镜，以将从光记录介质反射的光与从光源发射的光分离。光分离装置包括第一玻璃，形成在第一玻璃上的多层膜和布置在多层膜上的粘合层，以将第二玻璃粘合到多层膜上。从光源发射的大部分光通过第一玻璃进入分光装置，并被多层膜反射。

10. 发明申请

US20070064574A1 Semiconductor laser apparatus, optical pick-up and optical information apparatus 审中-公开
标题翻译：半导体激光装置，光学拾取和光学信息装置
公开(公告)号：US20070064574A1
公开(公告)日：2007-03-22
申请号：US11521664
申请日：2006-09-15
申请人： Yoshiaki Komma , Seiji Nishino , Hidenori Wada , Teruhiro Shiono , Sadao Mizuno , Hiroshi Shiroiwa
发明人： Yoshiaki Komma , Seiji Nishino , Hidenori Wada , Teruhiro Shiono , Sadao Mizuno , Hiroshi Shiroiwa
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/123 , G11B7/1275 , G11B2007/0006
摘要： A transmission diffraction grating body including a base material being substantially transparent with respect to wavelength λ1 and having a refractive index n0; another base material being substantially transparent with respect to wavelength λ1 and having a refractive index n1, which is formed on the base material having a refractive index n0; and a relief diffraction grating formed on the base material having a refractive index n1; wherein the refractive indexes n1 and n0 satisfy the relationship: n1>n0. Thus, the base material having a refractive index n1 can be formed of a high refractive index material, and when the depth of grating of the diffraction grating is set so that the diffraction grating diffracts the light with wavelength λ1 and does not diffract the light with wavelength λ2, the depth of grating of the diffraction grating can be made to be shallow, thus preventing the loss of the amount of the light with wavelength λ1. Furthermore, since base materials each having a different refractive index are bonded to each other to form a diffraction grating body, it is possible to minimize the use amount of the relatively expensive material having a high refractive index. Furthermore, since the most of the diffraction grating body can be formed of a material having a low refractive index, it is possible to lower the height of the diffraction index body.
摘要翻译：透射衍射光栅体，其包括相对于波长λ1基本上透明且具有折射率n 0的基材; 另一种基材相对于波长λ1基本上是透明的，并且具有折射率n 1，其形成在折射率为n 0的基材上; 以及形成在折射率为n 1的基材上的浮雕衍射光栅; 其中折射率n 1和n 0满足关系：n 1> n 0。因此，具有折射率n 1的基材可以由高折射率材料形成，并且当衍射光栅的光栅的深度被设置为使得衍射光栅衍射具有波长λ1的光并且不衍射具有波长λ2的光，衍射光栅的光栅深度可以变浅，从而防止波长λ1的光量的损失。此外，由于各自具有不同折射率的基材彼此结合以形成衍射光栅体，所以可以使具有高折射率的相对昂贵的材料的使用量最小化。此外，由于衍射光栅体的大部分可以由具有低折射率的材料形成，因此可以降低衍射指数体的高度。

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