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1. 发明授权

US06791933B1 Optical pickup using an optical phase plate 有权
标题翻译：光学拾取器采用光学相位板
公开(公告)号：US06791933B1
公开(公告)日：2004-09-14
申请号：US09516507
申请日：2000-03-01
申请人： Jang Hoon Yoo , Chul Woo Lee , Chong Sam Chung , Pyong Yong Seong , Kun Ho Cho , Hyun Seob Choi , Yong Hoon Lee , Tae Kyung Kim , No Kyong Park
发明人： Jang Hoon Yoo , Chul Woo Lee , Chong Sam Chung , Pyong Yong Seong , Kun Ho Cho , Hyun Seob Choi , Yong Hoon Lee , Tae Kyung Kim , No Kyong Park
IPC分类号： G11B712
CPC分类号： G11B7/1374 , G02B19/0028 , G02B19/0057 , G02B27/0944 , G11B7/127 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1367 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light sources emit a first light beam having a relatively shorter wavelength for the. DVD and a second light beam having a longer wavelength for the CD-R, respectively. An objective lens has a predetermined focal length in accordance with the position of an information recording surface in the DVD. An optical path control unit controls the path of light beams so that the light beam emitted from one of the laser light sources is directed to the objective lens and the light output from the objective lens is directed to the optical detection unit. A phase shift unit which is located between the optical path control unit and the objective lens, shifts the phase of the second light proceeding from the optical path control unit to the objective lens, to thereby reduce the size of a beam spot which is formed on a position of the information recording surface in the CD-R.
摘要翻译：具有与使用根据要使用的记录介质的第一光束和第二光束中的一个的波长的可重写光盘（CD-R）和数字视频盘（DVD）兼容的光学拾取装置。在光学拾取装置中，激光源发射具有相对较短波长的第一光束。 DVD和分别具有较长波长的CD-R的第二光束。根据DVD中的信息记录表面的位置，物镜具有预定焦距。光路控制单元控制光束的路径，使得从一个激光源发射的光束被引导到物镜，并且从物镜输出的光被引导到光学检测单元。位于光路控制单元和物镜之间的相移单元将从光路控制单元向物镜移动的第二光的相位偏移，从而减小形成在光路控制单元信息记录表面在CD-R中的位置。

2. 发明授权

US06445674B1 Optical head apparatus and optical disk apparatus 失效
标题翻译：光头装置和光盘装置
公开(公告)号：US06445674B1
公开(公告)日：2002-09-03
申请号：US09410080
申请日：1999-10-01
申请人： Masayoshi Morita
发明人： Masayoshi Morita
IPC分类号： G11B712
CPC分类号： G11B17/0436 , G11B7/121
摘要： An optical head device which contains a biaxial actuator having an objective lens opposing a signal recording surface of an optical disk; a slide base on which mounted is the biaxial actuator for movement in a radius direction of the optical disk; and a shutter for opening and closing an emission surface of a laser beam transmitted through the objective lens. The shutter is attached to the slide base so as to be movable, and is provided with a trigger portion operated by a chassis movably supporting the slide base to perform the opening and closing operations.
摘要翻译：一种光学头装置，包括具有与光盘的信号记录表面相对的物镜的双轴致动器; 安装有用于在光盘的半径方向上移动的双轴致动器的滑动基座; 以及用于打开和关闭透过物镜的激光束的发射表面的快门。闸板以可移动的方式安装在滑动基座上，并且设置有由可移动地支撑滑动基座的底盘操作以执行打开和关闭操作的触发器部分。

3. 发明授权

US06356526B1 Optical device 失效
标题翻译：光学装置
公开(公告)号：US06356526B1
公开(公告)日：2002-03-12
申请号：US09522589
申请日：2000-03-10
申请人： Shin Ito
发明人： Shin Ito
IPC分类号： G11B712
CPC分类号： G11B7/1372 , G11B7/0909 , G11B7/22
摘要： In an optical device, first, second and third reference axes intersect at right angles with each other at a predetermined point and a first reference plane is defined by the first and second reference axes with a second reference plane defined by the second reference axis and third reference axis. Frame, functioning as a support, has first and second supporting surfaces extending along first and second reference planes extending along the first reference plane and a third supporting surface extending along the second reference plane. Sensor lens has first, second and third support arms extending radially outward from its periphery. These support arms of the sensor lens have their respective side surfaces pressed, via a leaf spring. against the first, second and third support arms, respectively, and the sensor lens is supported by the frame in such a manner that the center of the sensor lens conforms with the optical axis. Such arrangements can reliably avoid an optical axis deviation that would result from any possible thermal expansion or contraction of the sensor lens.
摘要翻译：在光学装置中，第一和第三参考轴在预定点处彼此成直角相交，第一参考平面由第一和第二参考轴限定，第二参考平面由第二参考轴和第三参考轴限定参考轴。用作支撑件的框架具有沿着沿着第一参考平面延伸的第一和第二参考平面以及沿着第二参考平面延伸的第三支撑表面延伸的第一和第二支撑表面。传感器透镜具有从其周边径向向外延伸的第一，第二和第三支撑臂。传感器透镜的这些支撑臂通过板簧压制各自的侧表面。分别抵靠第一，第二和第三支撑臂，并且传感器透镜以这样的方式支撑，即传感器透镜的中心与光轴一致。这样的布置可以可靠地避免由传感器透镜的任何可能的热膨胀或收缩引起的光轴偏差。

4. 发明授权

US06343059B1 Reading-writing pickup head 有权
标题翻译：读写头皮头
公开(公告)号：US06343059B1
公开(公告)日：2002-01-29
申请号：US09376669
申请日：1999-08-16
申请人： Yuan-Chin Lee , Zu-Wen Chao
发明人： Yuan-Chin Lee , Zu-Wen Chao
IPC分类号： G11B712
CPC分类号： G11B7/1359
摘要： This invention concerns a reading-writing pickup head for data access on optical record media. The pickup head of the present invention includes a birefringent prism and a quarter-wave plate where the birefringent prism is made of double-refraction material with different refraction indices on different polarizations, and it is used to split the incident and reflection beams of the pickup head. According to the present invention, the prism and the polarized beam splitter of a pickup head of the related art are replaced with the birefringent prism. Consequently, the number of optical elements of the pickup head according to the present invention is reduced.
摘要翻译：本发明涉及用于在光学记录介质上进行数据访问的读写头拾取头。本发明的拾取头包括双折射棱镜和四分之一波长板，其中双折射棱镜由不同折射率的不同折射率的双折射材料制成，并且用于将拾取器的入射和反射光束分离头。根据本发明，现有技术的拾取头的棱镜和偏振分束器被双折射棱镜代替。因此，根据本发明的拾取头的光学元件的数量减少。

5. 发明授权

US06314064B1 Optical pickup device and optical disc device 失效
标题翻译：光拾取装置和光盘装置
公开(公告)号：US06314064B1
公开(公告)日：2001-11-06
申请号：US09172621
申请日：1998-10-15
申请人： Mitsunori Ueda , Takeshi Kubo , Junichi Suzuki , Satoshi Sakamoto , Hiroshi Kawamura
发明人： Mitsunori Ueda , Takeshi Kubo , Junichi Suzuki , Satoshi Sakamoto , Hiroshi Kawamura
IPC分类号： G11B712
CPC分类号： G11B7/1374 , G11B7/08 , G11B7/09 , G11B7/0912 , G11B7/0935 , G11B7/0943 , G11B7/123 , G11B7/131 , G11B7/1356 , G11B7/139 , G11B2007/0006
摘要： An optical pickup device has a first optical system including a double lens type lens unit having a forward lens arranged facing an optical disc and a backward lens having an optical axis coincident with the forward lens. The optical pickup device also has a second optical system including an objective lens and first and second gap detection photodetectors for detecting the separation between the signal readout surface of the optical disc and the forward lens of the double lens type lens unit. The optical pickup device also includes a bobbin provided with the double lens type lens unit of the first optical system and with the objective lens of the second optical system and an electromagnetic driving unit for driving the bobbin in a first direction parallel to the optical axis of the objective lens and that of the forward lens of the double lens type lens unit and in a second direction normal to the optical axes. With the optical pickup device, the objective lens unit can be improved in operational reliability and the device in its entirety can be reduced in size.
摘要翻译：光拾取装置具有第一光学系统，该第一光学系统包括具有面向光盘的正射透镜的双透镜型透镜单元和具有与前透镜重合的光轴的后透镜。光学拾取装置还具有包括物镜的第二光学系统和用于检测光盘的信号读出表面与双透镜型透镜单元的前向透镜之间的间隔的第一和第二间隙检测光电探测器。光学拾取装置还包括一个设置有第一光学系统的双透镜型透镜单元和第二光学系统的物镜的线轴和一个电磁驱动单元，用于沿平行于光轴的第一方向驱动线轴物镜和双透镜型透镜单元的前透镜的物镜和与光轴垂直的第二方向。利用光学拾取装置，可以提高物镜单元的操作可靠性，整体上可以减小装置的尺寸。

6. 发明授权

US06278680B1 Initial crystallization method of recording media and device thereof 有权
标题翻译：记录介质的初始结晶方法及其装置
公开(公告)号：US06278680B1
公开(公告)日：2001-08-21
申请号：US09275424
申请日：1999-03-24
申请人： Yasushi Miyauchi , Eiji Sahota , Shin Matsumoto , Kazuhiro Soga , Motoyasu Terao
发明人： Yasushi Miyauchi , Eiji Sahota , Shin Matsumoto , Kazuhiro Soga , Motoyasu Terao
IPC分类号： G11B712
CPC分类号： G11B7/268 , G11B7/00557 , G11B7/26
摘要： An initial crystallization method of a recording medium such as a phase-change optical disk, which comprises forming a light spot composed of at least two flat elliptical beam spots each having a long axis direction and a short axis direction and irradiating a rotating recording medium with the light spot such that the long axis direction of the beam spots becomes other direction than the parallel direction to the track direction of the recording medium, wherein the above-described light spot has at least two peaks of light intensity in the short axis direction and the interval of said two peaks of light intensity is 10 &mgr;m or smaller but not smaller than 2 &mgr;m, and a device for carrying out the initial crystallization method. By the initial crystallization method and the device thereof, the initial crystallization of the recording film of the recording medium can be surely carried out at a high speed without causing non-uniformity.
摘要翻译：一种诸如相变光盘的记录介质的初始结晶方法，包括形成由至少两个具有长轴方向和短轴方向的平坦椭圆形光束点组成的光斑，并且将旋转记录介质照射光斑使得光斑的长轴方向成为与记录介质的轨迹方向平行的方向以外的方向，其中上述光点在短轴方向上具有至少两个光强度的峰值，以及所述两个光强度峰值的间隔为10μm或更小但不小于2μm，以及用于进行初始结晶方法的装置。通过初始结晶方法及其装置，记录膜的初始结晶可以高速地可靠地进行记录介质，而不会引起不均匀。

7. 发明授权

US06272101B1 Method and device for instantly encoding digitized information on a stamper from which compact discs can be made 有权
标题翻译：用于立即编码可以制造光盘的压模上的数字化信息的方法和装置
公开(公告)号：US06272101B1
公开(公告)日：2001-08-07
申请号：US09210839
申请日：1998-12-15
申请人： Edward W. Morton
发明人： Edward W. Morton
IPC分类号： G11B712
CPC分类号： G11B7/127 , G11B7/12 , G11B7/1372 , G11B7/261
摘要： An apparatus and method for mass producing optically readable discs includes providing an array of light emitting devices which are arranged in a spiral pattern corresponding to the spiral track along which data is recorded on optically readable discs. The light emitting devices of the array are driven selectively to expose a layer of photoresist on a substrate. The light is focused on the substrate by an array of micro-lenses corresponding to the array of light emitting devices. When the photoresist on the substrate is developed, it can either by cured for use as a stamper or metallized for use in forming, in succession, a father, a mother and a stamper.
摘要翻译：用于批量生产光学可读光盘的装置和方法包括提供发光器件的阵列，其被布置成螺旋形图案，该螺旋图案对应于数据记录在光学可读盘上的螺旋形轨道。阵列的发光器件选择性地被驱动以在衬底上暴露一层光致抗蚀剂。光通过对应于发光器件阵列的微透镜阵列聚焦在衬底上。当基底上的光致抗蚀剂显影时，其可以通过固化用作压模或金属化，以用于连续地形成父亲，母亲和压模。

8. 发明授权

US06222812B1 Optical pickup using an optical phase plate 失效
标题翻译：光学拾取器采用光学相位板
公开(公告)号：US06222812B1
公开(公告)日：2001-04-24
申请号：US08921386
申请日：1997-08-29
申请人： Jang Hoon Yoo , Chul Woo Lee , Chong Sam Chung , Pyong Yong Seong , Kun Ho Cho , Hyun Seob Choi , Yong Hoon Lee , Tae Kyung Kim , No Kyong Park
发明人： Jang Hoon Yoo , Chul Woo Lee , Chong Sam Chung , Pyong Yong Seong , Kun Ho Cho , Hyun Seob Choi , Yong Hoon Lee , Tae Kyung Kim , No Kyong Park
IPC分类号： G11B712
CPC分类号： G11B7/1374 , G02B19/0028 , G02B19/0057 , G02B27/0944 , G11B7/127 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1367 , G11B7/139 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus having compatibility with a recodable compact disk (CD-R) and a digital video disk (DVD), which uses a wavelength of one of a first light beam and a second light beam according to the recording medium to be used. In the optical pickup apparatus, laser light sources emit a first light beam having a relatively shorter wavelength for the DVD and a second light beam having a longer wavelength for the CD-R, respectively. An objective lens has a predetermined focal length in accordance with the position of an information recording surface in the DVD. An optical path control unit controls the path of light beams so that the light beam emitted from one of the laser light sources is directed to the objective lens and the light output from the objective lens is directed to the optical detection unit. A phase shift unit which is located between the optical path control unit and the objective lens, shifts the phase of the second light proceeding from the optical path control unit to the objective lens, to thereby reduce the size of a beam spot which is formed on a position of the information recording surface in the CD-R.
摘要翻译：具有与使用根据要使用的记录介质的第一光束和第二光束中的一个的波长的可重写光盘（CD-R）和数字视频盘（DVD）兼容的光学拾取装置。在光拾取装置中，激光光源分别发射具有相对较短波长的第一光束和用于CD-R的具有较长波长的第二光束。根据DVD中的信息记录表面的位置，物镜具有预定焦距。光路控制单元控制光束的路径，使得从一个激光源发射的光束被引导到物镜，并且从物镜输出的光被引导到光学检测单元。位于光路控制单元和物镜之间的相移单元将从光路控制单元向物镜移动的第二光的相位偏移，从而减小形成在光路控制单元信息记录表面在CD-R中的位置。

9. 发明授权

US06757227B2 Optical drive apparatus for use with different recording media, tracking control method for use therein, and optical disc 失效
标题翻译：用于不同记录介质的光驱装置，用于其中的跟踪控制方法和光盘
公开(公告)号：US06757227B2
公开(公告)日：2004-06-29
申请号：US09802134
申请日：2001-03-09
申请人： Eiji Kumagai , Kenji Nagashima , Toshio Morizumi
发明人： Eiji Kumagai , Kenji Nagashima , Toshio Morizumi
IPC分类号： G11B712
CPC分类号： G11B7/1353 , G11B7/007 , G11B7/0903 , G11B7/0909 , G11B7/0941 , G11B7/0943 , G11B7/1356 , G11B7/1374
摘要： An optical recording/reproducing apparatus having drive means for rotating a recording medium, an optical head for applying light to the recording medium being rotated by the drive means, thereby to record data signals on the recording medium or reproducing data from the recording medium, and a signal-processing circuit for processing a signal detected by the optical head. The optical head comprises a light source for emitting light, an objective lens, and signal detecting means. The objective lens has a numerical aperture NA, where 0.5
摘要翻译：具有用于旋转记录介质的驱动装置的光学记录/再现装置，用于向通过驱动装置旋转的记录介质施加光的光学头，从而将数据信号记录在记录介质上或从记录介质再现数据，以及用于处理由光头检测到的信号的信号处理电路。光头包括用于发光的光源，物镜和信号检测装置。物镜具有数值孔径NA，其中0.5

10. 发明授权

US06639887B1 Optical apparatus with laser light receiver and focus error generator in the same layer 失效
标题翻译：具有激光接收器和聚焦误差发生器的光学装置在同一层
公开(公告)号：US06639887B1
公开(公告)日：2003-10-28
申请号：US09492346
申请日：2000-01-27
申请人： Masataka Izawa
发明人： Masataka Izawa
IPC分类号： G11B712
CPC分类号： G11B7/124 , G11B7/22
摘要： An optical integrated apparatus is used in an optical pickup apparatus which irradiates a light emitted by a light emitting device to an optical information record medium, on which record information is recorded, and receives a reflection light reflected from the optical information record medium. The optical integrated apparatus is provided with: a substrate; a light wave coupler for respectively generating a transmitted light and a guided light out of the reflection light; a light guide path for propagating the guided light; a first light receiving portion for receiving the transmitted light; and a second light receiving portion for receiving a radiant light which is generated out of the guided light and is directed toward the substrate due to a phase matching from the light guide path. The light wave coupler, the light guide path, the first light receiving portion and the second light receiving portion are laminated on the substrate. The first light receiving portion and the second light receiving portion are formed in a same layer on the substrate.
摘要翻译：一种光学集成装置用于将由发光装置发射的光照射到其上记录有记录信息的光学信息记录介质并接收从光学信息记录介质反射的反射光的光学拾取装置。光学集成装置设置有：基板; 用于分别从反射光产生透射光和引导光的光波耦合器; 用于传播引导光的导光路径; 用于接收透射光的第一光接收部分; 以及第二光接收部分，用于接收从导光路径产生的辐射光，并且由于与导光路径的相位匹配而被引向基板。光波耦合器，导光路径，第一光接收部分和第二光接收部分层叠在基板上。第一光接收部分和第二光接收部分在基板上形成在同一层中。

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