公开(公告)号：US07099088B2

公开(公告)日：2006-08-29

申请号：US11183954

申请日：2005-07-19

申请人： Isao Okuda

发明人： Isao Okuda

IPC分类号： G02B15/14 ,  G02B7/02

CPC分类号： G02B7/102 ,  G02B7/022 ,  G02B7/023 ,  G02B7/08

摘要： A lens drive mechanism includes a rotatable lead screw driven to rotate about an axis thereof, the axis extending parallel to an optical axis of a lens group; a non-rotatable guide shaft which extends parallel to the rotatable lead screw; a nut member made of synthetic resin which includes a screw engaging portion, with which the rotatable lead screw is screw-engaged, and a rotation-prevention portion, which is engaged with the non-rotatable guide shaft to prevent the nut member from rotating about the rotatable lead screw; and a lens support frame which supports the lens group and is movable together with the nut member in an optical axis direction. The rotation-prevention portion of the nut member includes a pair of holding portions which are formed integral with the nut member so as to resiliently contact the non-rotatable guide shaft.

公开(公告)号：US06963455B2

公开(公告)日：2005-11-08

申请号：US10771402

申请日：2004-02-05

申请人： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

发明人： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda

IPC分类号： G02B7/10 ,  G02B15/14 ,  G03B17/00

CPC分类号： G02B7/10

摘要： A lens barrel includes a holder holding an image pick-up device; a stationary barrel having a female helicoid; a gear/helicoid ring including an annular rib, a male helicoid formed on the annular rib and engaged with the female helicoid, and a spur gear formed on the male helicoid; a pinion engaged with the spur gear; a linear guide ring provided around the gear/helicoid ring; a outer circumferential groove formed on the gear/helicoid ring; and bayonet lugs projecting rearwards from the linear guide ring and engaging in the circumferential groove. Rotation of the gear/helicoid ring causes a lens group to move along the optical axis. At least a portion of a rear end of the male helicoid extends rearwards. At least a portion of the rear extension portion overlaps the holder in the optical axis direction when the gear/helicoid ring stops retracting at a predetermined position.

摘要翻译： 镜筒包括保持摄像装置的保持器; 具有雌螺旋的固定筒; 包括环形肋的齿轮/螺旋环，形成在环形肋上并与雌螺旋结合的阳螺旋形，以及形成在雄螺旋上的正齿轮; 与正齿轮啮合的小齿轮; 设置在齿轮/螺旋环周围的线性导环; 形成在齿轮/螺旋环上的外周槽; 以及从直线引导环向后突出并接合在周向凹槽中的卡口凸耳。 齿轮/螺旋环的旋转导致透镜组沿着光轴移动。 男性螺旋体的后端的至少一部分向后延伸。 当齿轮/螺旋环停止在预定位置处缩回时，后延伸部分的至少一部分在光轴方向上与支架重叠。

公开(公告)号：US06636362B2

公开(公告)日：2003-10-21

申请号：US10101619

申请日：2002-03-21

申请人： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda ,  Satoru Nakamura

发明人： Hiroshi Nomura ,  Yoshihiro Yamazaki ,  Isao Okuda ,  Satoru Nakamura

IPC分类号： G02B1514

CPC分类号： G02B7/102

摘要： A lens barrel includes a front lens frame supporting a front lens group; a rear lens frame supporting a rear lens group; a cam ring including first and second cam grooves which receive first and second cam followers of the front and rear lens frames; the first and second cam grooves include first and second moving sections and first and second accommodation sections, respectively; and a guiding mechanism allowing the rear lens frame to relatively rotate when the second cam follower engages in a vicinity an accommodation position of the second accommodation section, and prohibiting the rear lens frame from relatively rotating while allowing the rear lens frame to only relatively move in the optical axis direction when the second cam follower engages in a section of the second cam groove which includes the second moving section and excludes this vicinity.

公开(公告)号：US06243333B1

公开(公告)日：2001-06-05

申请号：US09052098

申请日：1998-03-31

申请人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima ,  Takeharu Shin

发明人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima ,  Takeharu Shin

IPC分类号： G11B700

CPC分类号： G11B17/0438 ,  G11B11/10558 ,  G11B11/10573

摘要： A magneto-optical disk drive incorporates: a structure to mount a front panel to a frame using a cartridge loading system, using a set of linearly movable control cam plates, to draw a cartridge into a cartridge holder and then to move the cartridge holder to an operating position; a timing control system for the cartridge loading system, which includes a unitary encoder cam gear including a drive gear portion to move the cam plates to lift and lower the cartridge holder, a cam groove portion to draw a cartridge into the cartridge holder, and timing encoders portions to interrupt photo sensors; a shutter mechanism to fully close a cartridge slot with a shutter, both when the drive holds a cartridge and when empty; a magnetic head vertical positioning system to position a magnetic head base against fixed reference surfaces below and a set of resilient members above; a magnetic head horizontal positioning system to first fix the magnetic head base to rotate horizontally about a point, and then to resiliently hold the base from rotating against a rigid member; a magnetic head carriage lock mechanism to hold a magnetic head carriage in its outermost radial position; and a control system for quickly synchronizing magnetic head movement and optical head movement by first moving both heads to an outermost radial position.

摘要翻译： 磁光盘驱动器包括：使用一组线性可移动控制凸轮板将盒前端面板安装到框架的结构，使用一组可线性移动的控制凸轮板将盒子拉入盒架中，然后将盒架移动到 经营职位; 一种用于盒装载系统的定时控制系统，其包括一个整体编码器凸轮齿轮，其包括用于移动凸轮板以提升和降低盒保持器的驱动齿轮部分，将盒子拉入盒保持器的凸轮槽部分， 编码器部分来中断光传感器; 一个快门机构，用于在驱动器固定墨盒时和空时完全关闭带有快门的墨盒槽; 磁头垂直定位系统，用于将磁头基座定位在下面固定的参考表面和一组上面的弹性构件; 一个磁头水平定位系统，用于首先将磁头基座固定在水平方向绕一个点旋转，然后弹性地将基座旋转抵靠刚性构件; 用于将磁头托架保持在其最外径位置的磁头托架锁定机构; 以及用于通过首先将两个头移动到最外径位置来快速地使磁头移动和光头移动同步的控制系统。

公开(公告)号：US5905696A

公开(公告)日：1999-05-18

申请号：US50872

申请日：1998-03-31

申请人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima ,  Takeharu Shin

发明人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima ,  Takeharu Shin

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B11/00

CPC分类号： G11B17/0438 ,  G11B11/10558 ,  G11B11/10573

摘要： Method and apparatus for synchronizing movements of a magnetic head and an optical head of a magneto-optical disk drive. A magnetic head carriage moves a magnetic head between a standby position and a head application position. An optical head carriage supports an optical head to read at least identification tracks of a magneto-optical disk. A synchronizing device synchronizes linear positions of the magnetic head carriage and the optical head carriage, such that the magnetic head carriage is proximate an outermost position of the magnetic head carriage and the optical head carriage is proximate an outermost position of the optical head carriage when the synchronizing device synchronizes the linear positions of the magnetic head carriage and the optical head carriage.

摘要翻译： 用于使磁头和磁光盘驱动器的光头同步运动的方法和装置。 磁头托架在待机位置和头部施加位置之间移动磁头。 光头托架支撑光头以至少读取磁光盘的识别轨迹。 同步装置使磁头托架和光头托架的线性位置同步，使得磁头托架靠近磁头托架的最外侧位置，并且光​​头托架靠近光头托架的最外位置时 同步装置使磁头托架和光头托架的线性位置同步。

公开(公告)号：US5768241A

公开(公告)日：1998-06-16

申请号：US337228

申请日：1994-11-04

申请人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima ,  Takeharu Shin

发明人： Hiroshi Kanazawa ,  Shimpei Shinozaki ,  Isao Okuda ,  Suguru Takishima ,  Takeharu Shin

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B33/02

CPC分类号： G11B17/0438 ,  G11B11/10558 ,  G11B11/10573

摘要： A magneto-optical disk drive incorporates: a structure to mount a front panel to a frame using a cartridge loading system, using a set of linearly movable control cam plates, to draw a cartridge into a cartridge holder and then to move the cartridge holder to an operating position; a timing control system for the cartridge loading system, which includes a unitary encoder cam gear including a drive gear portion to move the cam plates to lift and lower the cartridge holder, a cam groove portion to draw a cartridge into the cartridge holder, and timing encoders portions to interrupt photo sensors; a shutter mechanism to fully close a cartridge slot with a shutter, both when the drive holds a cartridge and when empty; a magnetic head vertical positioning system to position a magnet head base against fixed reference surfaces below and a set of resilient members above; a magnetic head horizontal positioning system to first fix the magnetic head base to rotate horizontally about a point, and then to resiliently hold the case from rotating against a rigid member; a magnetic head carriage lock mechanism to hold a magnetic head carriage in its outermost radial position; and a control system for quickly synchronizing magnetic head movement and optical head movement by first moving both heads to an outermost radial position.

摘要翻译： 磁光盘驱动器包括：使用一组线性可移动控制凸轮板将盒前端面板安装到框架的结构，使用一组可线性移动的控制凸轮板将盒子拉入盒架中，然后将盒架移动到 经营职位; 一种用于盒装载系统的定时控制系统，其包括一个整体编码器凸轮齿轮，其包括用于移动凸轮板以提升和降低盒保持器的驱动齿轮部分，将盒子拉入盒保持器的凸轮槽部分， 编码器部分来中断光传感器; 一个快门机构，用于在驱动器固定墨盒时和空时完全关闭带有快门的墨盒槽; 磁头垂直定位系统，用于将磁头基座定位在下面固定的参考表面和一组上面的弹性元件; 一个磁头水平定位系统，用于首先将磁头基座围绕点水平地旋转，然后弹性地将壳体旋转抵靠刚性构件; 用于将磁头托架保持在其最外径位置的磁头托架锁定机构; 以及用于通过首先将两个头移动到最外径位置来快速地使磁头移动和光头移动同步的控制系统。

公开(公告)号：US5587973A

公开(公告)日：1996-12-24

申请号：US408977

申请日：1995-03-23

申请人： Hiroshi Kanazawa ,  Isao Okuda ,  Shimpei Shinozaki ,  Suguru Takishima

发明人： Hiroshi Kanazawa ,  Isao Okuda ,  Shimpei Shinozaki ,  Suguru Takishima

IPC分类号： G11B11/105 ,  G11B17/04 ,  G11B11/00 ,  G11B33/02

CPC分类号： G11B11/10558 ,  G11B17/0438 ,  G11B11/10597

摘要： A magneto-optical disk drive system, utilizing a magnetic field modulation recording method, has a disk cartridge for housing a magneto-optical disk therein and insertable into a system housing and a magnetic head in the system housing for writing information on the magneto-optical disk held in the disk cartridge. The disk cartridge is guided by cam grooves and cam pins for movement between a first unloading position and a first loading position when inserted in the system housing. The magnetic head is guided by cam grooves and cam pins for movement between a second unloading position remote from the disk cartridge and a second loading position close to the disk cartridge. The magnetic head is normally urged to move from the second loading position toward the second unloading position under the bias of a tension spring. A lock arm is attracted by an electromagnet to lock the magnetic head in the second loading position when the main power supply of the magneto-optical disk drive system is turned on. When the electromagnet is de-energized, the lock arm is released, unlocking the magnetic head to move from the second loading position toward the second unloading position toward the second unloading position under the bias of the tension spring.

摘要翻译： 利用磁场调制记录方法的磁光盘驱动系统具有用于在其中容纳磁光盘的盘盒，可插入到系统外壳中的磁头和用于将信息写入磁光的系统外壳中的磁头 磁盘保持在磁盘盒中。 盘盒由凸轮槽和凸轮销引导，用于当插入系统壳体时在第一卸载位置和第一装载位置之间移动。 磁头由凸轮槽和凸轮销引导，用于在远离盘盒的第二卸载位置和靠近盘盒的第二装载位置之间移动。 通常在张力弹簧的偏压下，磁头被迫从第二装载位置向第二卸载位置移动。 当磁光盘驱动系统的主电源接通时，锁定臂被电磁铁吸引，以将磁头锁定在第二装载位置。 当电磁体被断电时，锁定臂被释放，在拉伸弹簧的偏压下使磁头解锁，从第二装载位置向第二卸载位置移动到第二卸载位置。

公开(公告)号：US5297114A

公开(公告)日：1994-03-22

申请号：US800846

申请日：1991-11-29

申请人： Tsuyoshi Itoh ,  Isao Okuda ,  Toshiyuki Kase ,  Hiroshi Nishikawa ,  Ryoto Ogawa ,  Masahiro Oono ,  Koichi Maruyama ,  Makoto Iki ,  Isao Takahashi

发明人： Tsuyoshi Itoh ,  Isao Okuda ,  Toshiyuki Kase ,  Hiroshi Nishikawa ,  Ryoto Ogawa ,  Masahiro Oono ,  Koichi Maruyama ,  Makoto Iki ,  Isao Takahashi

IPC分类号： G11B7/09 ,  G11B7/00

CPC分类号： G11B7/094

摘要： In the magneto-optic recording/reproduction apparatus, a light beam from a semiconductor laser that can be used with two wavelengths, for recording and reproduction is converged by an objective lens on a magneto-optic disk, a predetermined offset is added to this focusing error signal by an offset adjusting circuit, and the objective lens is driven in the direction of the optical axis based on the focusing error signal to which an offset was added.

摘要翻译： 在磁光记录/再现装置中，来自可用于记录和再现的两个波长的半导体激光器的光束被物镜会聚在磁光盘上，预定的偏移被加到该聚焦 通过偏移调整电路的误差信号，并且基于添加有偏移的聚焦误差信号，物镜在光轴的方向上被驱动。

公开(公告)号：US5280464A

公开(公告)日：1994-01-18

申请号：US741620

申请日：1991-08-07

申请人： Tsuyoshi Itoh ,  Isao Okuda ,  Toshiyuki Kase ,  Hiroshi Nishikawa ,  Ryota Ogawa ,  Masahiro Oono ,  Koichi Maruyama ,  Makoto Iki

发明人： Tsuyoshi Itoh ,  Isao Okuda ,  Toshiyuki Kase ,  Hiroshi Nishikawa ,  Ryota Ogawa ,  Masahiro Oono ,  Koichi Maruyama ,  Makoto Iki

IPC分类号： G11B11/10 ,  G11B7/09 ,  G11B7/135 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B7/0909 ,  G11B7/1365 ,  G11B7/13922

摘要： An optical system of an optical disk apparatus having plural optical elements characterized in that the optical element having aberration which can counterbalance the wave front aberration of the whole optical system is disposed, or a direction of aberration of each existing optical element is adjusted in order to correct the wave front aberration.

摘要翻译： 具有多个光学元件的光盘装置的光学系统，其特征在于，具有能够抵消整个光学系统的波面像差的像差的光学元件被设置，或者调整每个现有光学元件的像差方向，以便 纠正波前像差。

公开(公告)号：US5278401A

公开(公告)日：1994-01-11

申请号：US928408

申请日：1992-08-12

申请人： Suguru Takishima ,  Isao Okuda ,  Masahiro Oono ,  Koichi Maruyama ,  Masato Noguchi

发明人： Suguru Takishima ,  Isao Okuda ,  Masahiro Oono ,  Koichi Maruyama ,  Masato Noguchi

IPC分类号： G11B7/09 ,  G11B7/13 ,  G11B11/105 ,  G01J1/20 ,  G11B7/00

CPC分类号： G11B11/10597 ,  G11B11/10576 ,  G11B7/0903 ,  G11B7/0912 ,  G11B7/0943 ,  G11B7/131

摘要： A signal detecting apparatus in an optical disc apparatus having an objective lens which converges light emitted from a light source onto an optical disc and a condenser lens which converges light reflected by the optical disc and transmitted through the objective lens includes first and second light receiving elements, each having a light receiving surface located before or behind a convergence point on which the light reflected from the optical disc is converged when the objective lens is in a focal position. Each of the light receiving surfaces are split into at least four light receiving areas. The signal detecting apparatus also includes a means for calculating a sum of differences of outputs of the light receiving surfaces' inner light receiving areas, calculating a sum of differences of outputs of the light receiving surfaces' outer light receiving areas, and then calculating a difference of the sums of differences, so that a track error signal is output in accordance with the difference of sums of differences calculated by the calculating means.

摘要翻译： 在具有将从光源发射的光会聚到光盘上的物镜的光盘装置中的信号检测装置和会聚由光盘反射并透过物镜的光的聚光透镜包括第一和第二光接收元件 每个具有位于会聚点之前或之后的光接收表面，当物镜处于焦点位置时，从该光盘反射的光会聚在其上。 每个光接收表面被分成至少四个光接收区域。 信号检测装置还包括：计算受光面的内部光接收区域的输出的差的和的方式，计算受光面的外部光接收区域的输出的差的和，然后计算差 的差值之和，使得根据由计算装置计算的差值之差来输出轨道误差信号。