公开(公告)号：US20120140606A1

公开(公告)日：2012-06-07

申请号：US13353474

申请日：2012-01-19

申请人： Kazuo Watabe ,  Kazuto Kuroda ,  Takashi Usui ,  Hideaki Okano

发明人： Kazuo Watabe ,  Kazuto Kuroda ,  Takashi Usui ,  Hideaki Okano

IPC分类号： G11B7/0065

CPC分类号： G11B7/083 ,  G03H1/2286 ,  G03H2222/34 ,  G11B7/0065 ,  G11B7/09 ,  G11B7/1381 ,  G11B2007/0009

摘要： An information storage device includes an information recording medium, at least a single light source that emits laser light, an illuminating unit that illuminates substantially the same position of the information recording medium with two light rays generated from the laser light, in different directions, a light detecting unit that detects reflection light of the two light rays reflected from the information recording medium and outputs a detection signal, an operation unit that calculates position error information of the information recording medium based on the detection signal; and, a driving device that changes the position of the information recording medium based on the position error information.

摘要翻译： 信息存储装置包括：信息记录介质，至少一个发射激光的光源;照明单元，其以不同方向从激光产生的两束光照射基本相同位置的信息记录介质; 光检测单元，其检测从信息记录介质反射的两个光线的反射光并输出检测信号;运算单元，其基于检测信号计算信息记录介质的位置误差信息; 以及基于位置误差信息改变信息记录介质的位置的驱动装置。

公开(公告)号：US20120051201A1

公开(公告)日：2012-03-01

申请号：US13071592

申请日：2011-03-25

申请人： Kazuo Watabe ,  Akihito Ogawa ,  Hideaki Okano ,  Takashi Usui

发明人： Kazuo Watabe ,  Akihito Ogawa ,  Hideaki Okano ,  Takashi Usui

IPC分类号： G11B27/22

CPC分类号： G11B7/00781 ,  G11B7/0065 ,  G11B7/083

摘要： According to one embodiment, a data reproducing apparatus includes a data recording medium, light source unit, light application unit, photodetector unit and control unit. An address mark string including address marks is formed on the data recording medium. The address marks are spaced from each other by a distance depending on address data. The light application unit is configured to split the light beam into a first branch light beam and a second branch light beam and apply the first and second branch light beams to the address mark string at different angles. The photodetector unit is configured to detect first reflected light beams and second reflected light beams from the address mark string to generate image data. The first and second reflected light beams result from the first and second branch light beams, respectively. The control unit is configured to reproduce address data based on the image data.

摘要翻译： 根据一个实施例，数据再现装置包括数据记录介质，光源单元，光应用单元，光电检测器单元和控制单元。 包括地址标记的地址标记串形成在数据记录介质上。 地址标记根据地址数据彼此间隔一定距离。 光施加单元被配置为将光束分成第一分支光束和第二分支光束，并且以不同的角度将第一和第二分支光束施加到地址标记串。 光检测器单元被配置为从地址标记串检测第一反射光束和第二反射光束以产生图像数据。 第一和第二反射光束分别由第一和第二分支光束产生。 控制单元被配置为基于图像数据再现地址数据。

公开(公告)号：US07965455B2

公开(公告)日：2011-06-21

申请号：US12458777

申请日：2009-07-22

申请人： Hideaki Okano

发明人： Hideaki Okano

IPC分类号： G02B9/34

CPC分类号： G02B13/004 ,  G02B9/34 ,  G03B29/00

摘要： An image pickup lens includes, in order from an object side to an image side, an aperture stop, a first lens element having a positive refractive power, a second lens element having a negative refractive power and a biconcave shape, a third lens element having a positive refractive power and a meniscus shape whose concave surface faces the object side, and a fourth lens element having a negative refractive power. In the image pickup lens, the following conditional expressions are satisfied, 0.20 25 where f denotes the focal length of the entire lens system, f2 denotes the focal length of the second lens element, νd1 denotes the Abbe number of the first lens element, and νd2 denotes the Abbe number of the second lens element.

摘要翻译： 图像拾取透镜从物体侧到像侧依次包括孔径光阑，具有正折光力的第一透镜元件，具有负折光力的第二透镜元件和双凹面形状，第三透镜​​元件具有 凹面朝向物体侧的正屈光力和弯液面形状，以及具有负屈光力的第四透镜元件。 在图像拾取透镜中，满足以下条件表达式：0.20 25其中f表示整个透镜系统的焦距，f2表示 第二透镜元件，d1表示第一透镜元件的阿贝数，＆ngr; d2表示第二透镜元件的阿贝数。

公开(公告)号：US20080212418A1

公开(公告)日：2008-09-04

申请号：US12022953

申请日：2008-01-30

申请人： Kazuhiro Nagata ,  Katsuo Iwata ,  Hideaki Okano

发明人： Kazuhiro Nagata ,  Katsuo Iwata ,  Hideaki Okano

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B19/12 ,  G11B2007/0013

摘要： According to one embodiment, an optical head device provides a signal processing circuit which sets a control amount to move an objective lens so that a distance between the objective lens and a given recording layer of the an optical disc coincides with a focal position, an optical path length correction mechanism which corrects an influence of an aberration component producing an error in the focal distance, a thickness difference detection circuit which finds an amount of correction to be made by the optical path length, and an aberration correction circuit which generates a correction signal to correct the influence of the aberration component producing the error in the focal distance detected by the thickness difference detection circuit, and supplies the correction signal to the optical path length correction mechanism.

摘要翻译： 根据一个实施例，光学头装置提供信号处理电路，其设置控制量以移动物镜，使得物镜与光盘的给定记录层之间的距离与焦点位置一致，光学 路径长度校正机构，其校正产生焦距误差的像差分量的影响;求出由光程长度求出的校正量的厚度差检测电路;以及产生校正信号的像差校正电路 以校正产生由厚度差检测电路检测的焦距的误差的像差分量的影响，并将校正信号提供给光路长度校正机构。

公开(公告)号：US06215590B1

公开(公告)日：2001-04-10

申请号：US09246696

申请日：1999-02-09

申请人： Hideaki Okano

发明人： Hideaki Okano

IPC分类号： G02B2722

CPC分类号： G02B27/2264 ,  H04N13/189 ,  H04N13/305 ,  H04N13/31 ,  H04N13/32 ,  H04N13/346 ,  H04N13/361 ,  H04N13/363 ,  H04N13/368 ,  H04N13/376 ,  H04N13/398 ,  H04N19/597

摘要： A stereoscopic image display apparatus having a light source that defines at least one right and left light-cells which provide plural pairs of right and left lights. A spatial modulator, spaced apart from the light source, spatially modulates the right and left lights from the light source so as to focus the right and left lights on the eyes of at least one viewer. A display mode changer is capable of automatically changing the display mode of the image display between a stereoscopic image display mode and a normal plane image display mode. The display is automatically changed in accordance with the location of the viewer or in response to an instruction from the viewer.

摘要翻译： 具有光源的立体图像显示装置，该光源限定了提供多对左右灯光的至少一个左右的光电池。 与光源间隔开的空间调制器空间地调制来自光源的右和左光，以便将左右的光聚焦在至少一个观察者的眼睛上。 显示模式更换器能够在立体图像显示模式和普通平面图像显示模式之间自动地改变图像显示的显示模式。 显示器根据观看者的位置或响应于来自观看者的指令自动地改变。