公开(公告)号：US07542397B2

公开(公告)日：2009-06-02

申请号：US11074740

申请日：2005-03-09

申请人： Masakazu Ogasawara ,  Toshiharu Ezuka

发明人： Masakazu Ogasawara ,  Toshiharu Ezuka

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/13925 ,  G11B2007/0006

摘要： An aberration correction apparatus includes an optical pickup having a liquid crystal panel for correcting an aberration of a light beam emitted from a light source and irradiated on a recording medium and a control unit which applies, to the liquid crystal panel, a bias voltage in order to correct the aberration. The bias voltage is a voltage at which a diffraction generated in the light beam passing through an electrode gap portion between electrode portions of the liquid crystal panel is minimum. For instance, the bias voltage is the voltage at which a phase difference between the light beam passing through the electrode portions of the liquid crystal panel and the light beam passing through the electrode gap portion is an integral multiple of a wavelength of the light beam. It is thereby possible to prevent unnecessary diffracted light from being generated by the liquid crystal panel for correcting the aberrations.

摘要翻译： 一种像差校正装置，包括具有用于校正从光源发射并照射在记录介质上的光束的像差的液晶面板的光学拾取器和控制单元，该控制单元按顺序向液晶面板施加偏置电压 以纠正像差。 偏置电压是通过液晶面板的电极部之间的电极间隙部分的光束中产生的衍射最小的电压。 例如，偏置电压是通过液晶面板的电极部分的光束与通过电极间隙部分的光束之间的相位差是光束的波长的整数倍的电压。 从而可以防止由用于校正像差的液晶面板产生不必要的衍射光。

公开(公告)号：US07453791B2

公开(公告)日：2008-11-18

申请号：US11001648

申请日：2004-12-02

申请人： Masakazu Ogasawara ,  Akihiro Tachibana ,  Yoshihisa Kubota

发明人： Masakazu Ogasawara ,  Akihiro Tachibana ,  Yoshihisa Kubota

IPC分类号： G11B7/24

CPC分类号： G11B7/00781 ,  G11B7/0065 ,  G11B7/00745 ,  G11B7/0938 ,  G11B7/1356 ,  G11B7/24 ,  G11B7/24044 ,  G11B7/2405

摘要： A recording medium has a recording layer capable of be performed in recording or reproducing of information with light irradiation and carried with a substrate. The recording medium includes a guide layer having guide tracks each followed by a light beam spot focused from an objective lens through the recording layer, the guide tracks disposed at a first pitch. The recording medium includes a guide track transfer region provided on the guide layer and having at least one line of a track arranged in parallel between the guide tracks adjacent to each other in the extending direction of the guide track so as to be in a direction perpendicular to the guide track within a range shorter than that of the guide track.

摘要翻译： 记录介质具有能够通过光照射记录或再现信息而执行的记录层，并且携带有基板。 记录介质包括具有引导轨道的引导层，每个引导轨道之后是通过记录层从物镜聚焦的光束点，导轨以第一间距设置。 记录介质包括设置在引导层上的引导轨道传送区域，并且在引导轨道的延伸方向上具有彼此相邻的引导轨道之间平行布置的轨道的至少一条直线， 在比导轨更短的范围内到导轨。

公开(公告)号：US20080273444A1

公开(公告)日：2008-11-06

申请号：US11547102

申请日：2005-03-15

申请人： Masakazu Ogasawara ,  Yoshihisa Itoh ,  Yoshihisa Kubota

发明人： Masakazu Ogasawara ,  Yoshihisa Itoh ,  Yoshihisa Kubota

IPC分类号： G11B7/00

CPC分类号： G11B7/00781 ,  G03H2250/42 ,  G11B7/0065 ,  G11B7/24044

摘要： A holographic record carrier is capable of recording or reproducing information by irradiating light. The holographic record carrier is comprised of a holographic recording layer for storing an optical interference pattern produced by a signal light component of a coherent reference light and a signal light as a diffraction grating therein; a reflective layer stacked on the holographic recording layer in the opposite side of the light incidence side; and a plurality of non-reflective regions arranged on the reflective layer in the same interval as the record-interval of the diffraction grating.

摘要翻译： 全息记录载体能够通过照射光来记录或再现信息。 全息记录载体由用于存储由相干参考光的信号光分量和作为衍射光栅的信号光产生的光学干涉图案的全息记录层组成; 反射层，堆叠在光入射侧的相对侧的全息记录层上; 以及以与衍射光栅的记录间隔相同的间隔布置在反射层上的多个非反射区域。

公开(公告)号：US20080232203A1

公开(公告)日：2008-09-25

申请号：US10593649

申请日：2005-03-17

申请人： Masakazu Ogasawara ,  Makoto Sato ,  Ikuya Kikuchi

发明人： Masakazu Ogasawara ,  Makoto Sato ,  Ikuya Kikuchi

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/0948 ,  G11B7/1275 ,  G11B7/13927 ,  G11B2007/0006

摘要： An optical pickup projects laser beams having the first to the third wavelengths, in response to the type of a recording medium which is an object to which recording or reproduction is to be performed, and reflecting light from the recording medium is received by a light-detecting element. In order to reduce the sizes of the optical pickup, light of the second and the third wavelengths is generated by a single dual-wavelength light source, and reflecting light of all the wavelengths is to be received by the single light-detecting element. A hologram element giving different optical effects to light of each wavelength is arranged between the light irradiating means and the light-detecting element. Thus, appropriate information recording and reproduction can be performed by using light of each wavelength.

摘要翻译： 响应于要进行记录或再现的对象的记录介质的类型，并且来自记录介质的光被反射光接收，光拾取器投射具有第一至第三波长的激光束， 检测元件。 为了减小光学拾取器的尺寸，通过单个双波长光源产生第二和第三波长的光，并且所有波长的反射光将被单个光检测元件接收。 在光照射装置和光检测元件之间布置有对每个波长的光赋予不同光学效果的全息元件。 因此，可以通过使用每个波长的光来执行适当的信息记录和再现。

公开(公告)号：US07307769B2

公开(公告)日：2007-12-11

申请号：US11046799

申请日：2005-02-01

申请人： Masakazu Ogasawara

发明人： Masakazu Ogasawara

IPC分类号： G03H1/28

CPC分类号： G11B7/24038 ,  G03H1/26 ,  G03H2250/42 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/00772 ,  G11B7/083 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0943 ,  G11B7/0946 ,  G11B7/131 ,  G11B7/24044 ,  G11B7/24079 ,  G11B2007/0013

摘要： A hologram recording medium is for recording or reproducing information with light irradiated thereto. The medium has a recording layer made of a photo-sensitive material, a reflective layer disposed on the opposite side of the recording layer from a light irradiated side, tracks formed on the reflective layer such that the tracks are spaced apart by a first pitch from each other to extend without intersection, and positioning marks formed on the reflective layer such that the positioning marks are spaced apart by a second pitch from each other in a direction in which the tracks extend. The second pitch is a function of the first pitch.

摘要翻译： 全息记录介质用于利用其照射的光来记录或再现信息。 该介质具有由感光材料制成的记录层，设置在与光照射侧相反的记录层侧的反射层，形成在反射层上的轨迹，使得轨迹间隔开第一间距 彼此不相交地延伸，并且在反射层上形成定位标记，使得定位标记在轨道延伸的方向上彼此间隔开第二间距。 第二音调是第一音调的函数。

公开(公告)号：US07242510B2

公开(公告)日：2007-07-10

申请号：US11178500

申请日：2005-07-12

申请人： Masakazu Ogasawara

发明人： Masakazu Ogasawara

IPC分类号： G02F1/01 ,  G02F1/1343 ,  G11B7/00 ,  G09G3/36

CPC分类号： G11B7/1369 ,  G02B27/0025 ,  G02B27/0043 ,  G02B27/4238 ,  G02F1/134309 ,  G11B7/0956 ,  G11B7/13927

摘要： An aberration correction element is intended to correct an aberration. The aberration correction element is placed in a middle of an optical path between a light source and an optical element for focusing a light on the information recording medium. The aberration correction element is provided with: a first electrode; a liquid crystal element; second electrodes which are arranged in a form of multiple layers in a direction of the optical axis; and outgoing lines for individually applying a voltage to the second electrodes. At least one of second electrodes is placed between the outgoing line for applying the voltage to another second electrode other than one second electrode which is placed on the closest side to the liquid crystal element and the liquid crystal element which faces the outgoing line in the direction of the optical axis;

摘要翻译： 像差校正元件旨在校正像差。 像差校正元件被放置在光源和用于将光聚焦在信息记录介质上的光学元件之间的光路的中间。 像差校正元件设置有：第一电极; 液晶元件; 第二电极，沿着光轴的方向排列成多层的形式; 以及用于单独向第二电极施加电压的输出线。 第二电极中的至少一个被放置在输出线之间，用于将电压施加到除了一个第二电极之外的另一个第二电极，该第二电极位于最靠近液晶元件的一个第二电极上，并且液晶元件面向出射线的方向 的光轴;

公开(公告)号：US20070030284A1

公开(公告)日：2007-02-08

申请号：US10577373

申请日：2004-10-29

申请人： Masakazu Ogasawara ,  Akira Ueda ,  Hiroshi Miyai

发明人： Masakazu Ogasawara ,  Akira Ueda ,  Hiroshi Miyai

IPC分类号： G09G5/02

CPC分类号： G09G3/2003 ,  G09G3/2051 ,  G09G3/3607 ,  G09G5/02 ,  G09G2300/0452 ,  G09G2320/0242 ,  G09G2340/06 ,  H04N9/3114

摘要： A display apparatus, which makes one pixel displayable in four colors, that is, three primary colors and a white color, and inputs and displays chrominance signals corresponding to a mixing ratio of the four colors, includes a color correction instrument which performs first color correction of increasing the saturation of chrominance signals, and a second color correction of decreasing at least the saturation of the chrominance signals, when a predetermined color component exists in the chrominance signals corresponding to a pixel, selection instrument which switches temporally and selects either of first chrominance signals obtained by the first color correction, and second chrominance signals obtained by the second color correction, and a display instrument which displays the chrominance signals, which are selected, in the pixel.

摘要翻译： 一种显示装置，其使得一个像素可以四种颜色显示，即三原色和白色，并且输入和显示与四种颜色的混合比相对应的色度信号，包括执行第一颜色校正的颜色校正装置 增加色度信号的饱和度，以及当在与像素相对应的色度信号中存在预定颜色分量时，至少降低色度信号的饱和度的第二颜色校正，其在时间上切换并选择第一色度 通过第一颜色校正获得的信号和通过第二颜色校正获得的第二色度信号，以及在像素中显示被选择的色度信号的显示装置。

公开(公告)号：US07170845B2

公开(公告)日：2007-01-30

申请号：US10050604

申请日：2002-01-18

申请人： Masakazu Ogasawara

发明人： Masakazu Ogasawara

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/1369 ,  G11B2007/0013

摘要： An aberration correcting element includes a first aberration correction element movable along the optical axis of the light beam for correcting the aberration of the light beam; a driver for positioning the first aberration correction element along the optical axis in response to a drive control signal; a second aberration correction element having a plurality of phase adjustment portions each generating an amount of phase change in the light beam, the amount corresponding to an adjustment signal; a phase adjuster for supplying the adjustment signal to the respective adjustment portions in response to a phase control signal; a light receiver for receiving the light beam reflected from the recording medium to generate a light-receiving signal; and a controller for generating the drive control signal and the phase control signal based on the light-receiving signal.

摘要翻译： 像差校正元件包括可沿光束的光轴移动的用于校正光束像差的第一像差校正元件; 用于响应于驱动控制信号沿光轴定位第一像差校正元件的驱动器; 第二像差校正元件，具有多个相位调整部分，每个相位调整部分产生光束中的相位变化量，与调整信号相对应的量; 相位调节器，用于响应于相位控制信号将调整信号提供给相应的调节部分; 用于接收从记录介质反射的光束以产生光接收信号的光接收器; 以及控制器，用于基于光接收信号产生驱动控制信号和相位控制信号。

公开(公告)号：US20060028959A1

公开(公告)日：2006-02-09

申请号：US11177638

申请日：2005-07-11

申请人： Masakazu Ogasawara

发明人： Masakazu Ogasawara

IPC分类号： G11B7/00

CPC分类号： G11B7/1369 ,  G11B7/0956 ,  G11B7/13927 ,  G11B2007/0006

摘要： An aberration correction apparatus includes an optical pickup having a liquid crystal panel which gives a phase difference to a light beam emitted from a light source unit and irradiated onto a recording medium and corrects an aberration occurring to the light beam by a tilt of the recording medium, and a control unit which applies, to the liquid crystal panel, a correction voltage correspondent to an amount of the aberration in reference to a bias voltage. The bias voltage is set for each of the recording mediums so that the correction voltage applied for correcting the aberration of the same amount caused by the disc tilt becomes equal for different kinds of recording mediums. Namely, even when the plural kinds of recording mediums are used, if the disc tilt angles are same, the aberration can be corrected by applying the same correction voltage.

摘要翻译： 像差校正装置包括具有液晶面板的光学拾取器，该液晶面板对从光源单元发射的光束照射到记录介质上，并且通过记录介质的倾斜来校正发生在光束上的像差， 以及控制单元，其向液晶面板施加与偏置电压相关的像差量的校正电压。 为每个记录介质设置偏置电压，使得用于校正由盘倾斜引起的相同量的像差的校正电压在不同种类的记录介质上相等。 也就是说，即使使用多种记录介质，如果盘倾斜角度相同，则可以通过施加相同的校正电压来校正像差。

公开(公告)号：US20050207290A1

公开(公告)日：2005-09-22

申请号：US11120956

申请日：2005-05-04

申请人： Masayuki Iwasaki ,  Masakazu Ogasawara

发明人： Masayuki Iwasaki ,  Masakazu Ogasawara

IPC分类号： G02B27/00 ,  G02F1/1343 ,  G11B7/135

CPC分类号： G11B7/13925 ,  G02B27/0068 ,  G02F1/134309 ,  G02F2203/18 ,  G11B7/1369

摘要： An aberration correcting optical unit includes an optical element for causing a phase change to light passing therethrough by the application of voltage and electrode layers for applying voltages to the optical element. The optical element is sandwiched between the electrode layers. At least one of the electrode layers includes a plurality of electrodes which are electrically isolated from one another. The plurality of electrodes are disposed such that an electric field generated in a portion of the optical element corresponding to a portion between the plurality of electrodes is larger than a predetermined intensity when a predetermined voltage is applied to the optical element.

摘要翻译： 像差校正光学单元包括光学元件，用于通过施加用于向光学元件施加电压的电压和电极层使相对于其中的光变相。 光学元件夹在电极层之间。 电极层中的至少一个包括彼此电隔离的多个电极。 多个电极被布置成使得当对光学元件施加预定电压时，在与多个电极之间的部分相对应的光学元件的一部分中产生的电场大于预定强度。