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1. 发明授权

US07072254B2 Optical pickup device and recording medium used therefor 失效
标题翻译：光学拾取装置和用于其的记录介质
公开(公告)号：US07072254B2
公开(公告)日：2006-07-04
申请号：US10217330
申请日：2002-08-13
申请人： Dae-sik Kim , Soon-kyo Hong , Chul-woo Lee , Ho-cheol Lee , Kun-ho Cho , Jang-hoon Yoo
发明人： Dae-sik Kim , Soon-kyo Hong , Chul-woo Lee , Ho-cheol Lee , Kun-ho Cho , Jang-hoon Yoo
IPC分类号： G11B5/09 , G11B7/24
CPC分类号： G11B7/13922 , G11B7/123 , G11B7/1356 , G11B7/1374 , G11B7/139 , G11B7/24056
摘要： An optical pickup device includes a light unit for irradiating a light beam having a wavelength longer than 650 nm onto a recording medium and receiving and detecting a light beam reflected by the recording medium, and an objective tens formed of a single lens having an NA of 0.7 or more to form a light spot on the recording medium by condensing an incident light beam emitted from the light unit. A recording medium has a recording density of a DVD family or more and is formed of a material suitable for a long wavelength of 700 nm or more so that a reproduction signal by a reflectance of a recording surface is optimized. Thus, a compact high density optical recording/reproducing apparatus which is inexpensive and has high performance can be realized.
摘要翻译：一种光学拾取装置，包括用于将长度大于650nm的波长的光束照射到记录介质上并接收和检测由记录介质反射的光束的光单元，以及由具有NA 0.7以上，通过会聚来自光单元的入射光束，在记录介质上形成光斑。记录介质具有DVD系列以上的记录密度，并且由适合于700nm以上的长波长的材料形成，使得通过记录面的反射率的再现信号被优化。因此，可以实现廉价且具有高性能的紧凑型高密度光学记录/再现装置。

2. 发明授权

US07177260B2 Optical pickup including a many-sided reflection prism and method of using the optical pickup 失效
标题翻译：包括多面反射棱镜的光学拾取器和使用该光学拾取器的方法
公开(公告)号：US07177260B2
公开(公告)日：2007-02-13
申请号：US10141774
申请日：2002-05-10
申请人： Dae-sik Kim , Kun-ho Cho , Soon-kyo Hong , Young-il Kim , Kwang-sup Im , Ho-cheol Lee , Dae-hwan Kim
发明人： Dae-sik Kim , Kun-ho Cho , Soon-kyo Hong , Young-il Kim , Kwang-sup Im , Ho-cheol Lee , Dae-hwan Kim
IPC分类号： G11B7/135 , G02B5/04
CPC分类号： G11B7/1359 , G02B5/04 , G11B2007/0006
摘要： An optical pickup including a many-sided reflection prism formed as a single body with a plurality of reflection faces to guide a light beam incident through a transmission face in a horizontal direction perpendicular to a height direction by reducing a size of the light beam in the height direction, by using a difference in angles between the reflection faces, and to reflect the guided light beam in the height direction by one reflection face of an angle less than 45° with respect to the horizontal direction. By using the many-sided reflection prism, the height of an optical system can be reduced regardless of the wavelength used without reducing light beam size. Thereby, slim-sized optical pickups can be implemented.
摘要翻译：一种光学拾取器，其包括多个反射棱镜，其形成为具有多个反射面的单体，以通过减小在高度方向上的光束的尺寸来引导在垂直于高度方向的水平方向上通过透射面入射的光束通过使用反射面之间的角度差，并且将导向光束在高度方向上反射相对于水平方向的角度小于45°的一个反射面。通过使用多面反射棱镜，可以减小光学系统的高度，而不管使用的波长而不减小光束尺寸。因此，可以实现细长尺寸的光学拾取器。

3. 发明授权

US06657942B2 Optical recording and reproducing apparatus having floating swing arm and optical disk for use therewith 失效
标题翻译：具有浮动摆臂和与其一起使用的光盘的光学记录和再现装置
公开(公告)号：US06657942B2
公开(公告)日：2003-12-02
申请号：US09778856
申请日：2001-02-08
申请人： Chul-woo Lee , Joong-eon Seo , Seung-tae Jung , Myong-do Ro , Kun-ho Cho , Dong-seob Jang , Jang-hoon Yoo , Dae-sik Kim
发明人： Chul-woo Lee , Joong-eon Seo , Seung-tae Jung , Myong-do Ro , Kun-ho Cho , Dong-seob Jang , Jang-hoon Yoo , Dae-sik Kim
IPC分类号： G11B700
CPC分类号： G11B7/1356 , G11B7/08576 , G11B7/0908 , G11B7/122 , G11B7/1362 , G11B7/1376 , G11B7/1384 , G11B7/24
摘要： A swing-arm type optical recording and reproducing apparatus and an optical disk applicable to the same. The optical disk includes a substrate having an information recording surface to record and reproduce an information signal, and a protective layer which is provided on the information recording surface and whose surface facing a slider is a flat even surface so that variations in a floating height of the slider can be reduced. The optical recording and reproducing apparatus further includes, an optical head having a light source provided at a swing arm to emit light of a predetermined wavelength; an optical path changing means provided in the optical path of the light emitted from the light source for changing the proceeding path of incident light; a collimating lens installed at the slider to preliminarily converge the light emitted from the light source and entering via the optical path changing means; an objective lens installed at the slider to converge the light which is emitted from the light source and enters via the optical path changing means to form an optical spot on the optical disk; and a photodetector to receive the light which is reflected from the optical disk and enters via the objective lens, the collimating lens, and the optical path changing means. The optical head detects an information signal and an error signal in order to reduce defocus due to variations in ambient temperature and variations in the wavelength of the light of the light source.
摘要翻译：一种摆臂式光学记录和再现装置以及可应用于其的光盘。光盘包括具有信息记录表面以记录和再现信息信号的基板，以及设置在信息记录表面上并且其面向滑块的表面是平坦均匀表面的保护层，使得浮动高度的变化滑块可以减少。光学记录和再现装置还包括：光头，其具有设置在摆臂处以发射预定波长的光的光源; 光路改变装置，设置在从光源发射的光的光路中，用于改变入射光的行进路径; 准直透镜，安装在滑块上，以预先会聚从光源射出的光并通过光路改变装置进入; 安装在滑块上的物镜，其会聚从光源射出的光，经由光路改变装置进入，以在光盘上形成光点; 以及光电检测器，用于接收从光盘反射并经由物镜，准直透镜和光路改变装置进入的光。光头检测信息信号和误差信号，以便减少由于环境温度的变化和光源的光的波长变化引起的散焦。

4. 再颁专利

USRE39025E1 Lens device including a light controlling mechanism and an optical pickup apparatus using a lens device 有权
标题翻译：包括光控制机构的透镜装置和使用透镜装置的光学拾取装置
公开(公告)号：USRE39025E1
公开(公告)日：2006-03-21
申请号：US09689757
申请日：2000-10-13
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： G02B9/00
CPC分类号： G11B7/1353 , G02B3/10 , G02B27/58 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B2007/0006 , G11B2007/13727
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.
摘要翻译：可以在光学拾取装置中用作物镜的透镜装置包括沿着光盘面向盘并具有预定有效直径的物镜，沿着光路设置的光控制装置，用于控制光入射光束的近轴和远轴之间的中间区域，从而通过减小球面像差效应来提供在单个盘驱动器中使用不同厚度的盘的简化且便宜的装置。

5. 发明授权

US06547398B2 Projection-type image display apparatus and method 有权
标题翻译：投影型图像显示装置及方法
公开(公告)号：US06547398B2
公开(公告)日：2003-04-15
申请号：US09860820
申请日：2001-05-21
申请人： Kun-ho Cho , Seung-tae Jung , Jang-hoon Yoo , Chul-woo Lee
发明人： Kun-ho Cho , Seung-tae Jung , Jang-hoon Yoo , Chul-woo Lee
IPC分类号： G03B2100
CPC分类号： G03B21/005 , H04N9/3117 , H04N13/305 , H04N13/324 , H04N13/337 , H04N13/363
摘要： A projection-type image display apparatus having a structure adapted so that the efficiency of the use of light and resolving power thereof can be enhanced. The projection-type image display apparatus includes a light source; a color separation unit separating incident rays according to predetermined wavelengths, and directing the separated rays at different angles; a lens array dividing the rays separated by the color separation unit into predetermined pixels; a driving portion driving the lens array to change the proceeding paths of the color rays; a polarizing beam splitter changing a proceeding path of incident rays depending on a direction of polarization; a reflection-type display device producing a color image using the rays entering via the polarizing beam splitter, and reflecting the color image toward the polarizing beam splitter; and a projection lens unit magnifying and projecting an incident image onto a screen. In addition, the projection-type image display apparatus may comprise. Alternative designs include a transmission-type display device in place of the reflection-type display device and a deflector changing the proceeding paths of the individual color rays separated by the color separation unit instead of the driving portion.
摘要翻译：一种投影型图像显示装置，其具有能够提高光的使用效率和分辨能力的结构。投影型图像显示装置包括光源; 分离单元，根据预定波长分离入射光线，并以不同的角度引导分离的光线; 透镜阵列，将由分色单元分离的光线划分成预定的像素; 驱动所述透镜阵列以改变所述彩色光线的前进路径的驱动部; 偏振分束器根据偏振方向改变入射光线的行进路径; 反射型显示装置，使用通过偏振分束器进入的光线产生彩色图像，并将彩色图像反射向偏振分束器; 以及将投影图像放大并投影到屏幕上的投影透镜单元。此外，投影型图像显示装置可以包括。替代设计包括代替反射型显示装置的透射型显示装置和改变由分色单元分离的各个色光的行进路径而不是驱动部分的偏转器。

6. 发明授权

US06430139B1 Objective lens for high-density optical focusing, and optical pickup using the same 失效
标题翻译：用于高密度光学聚焦的物镜，以及使用其的光学拾取器
公开(公告)号：US06430139B1
公开(公告)日：2002-08-06
申请号：US09671710
申请日：2000-09-28
申请人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Chong-sam Chung , Dong-ho Shin
发明人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Chong-sam Chung , Dong-ho Shin
IPC分类号： G11B712
CPC分类号： G11B7/13922 , G11B7/1374 , G11B2007/0006
摘要： A high-density focusing objective lens having a high numerical aperture (NA), which can be easily manufactured by an existing technique, and an optical pickup using the objective lens for high-density recording. The objective lens includes a first transmitting portion placed at a relatively near-axis region from the optical axis to divergently transmit an incident light beam; a first reflecting portion to divergently reflect the incident light beam, the first reflecting portion faces the first transmitting portion; a second reflecting portion, formed at a relatively far-axis region around the first transmitting portion that focuses and reflects the light reflected from the first reflecting portion; and a second transmitting portion, formed at a relatively far-axis region around the first reflecting portion, that refracts and transmits the light beam focused by the second reflecting portion as a peripheral light beam, wherein the maximum angle &agr; between the optical axis and the peripheral light beam satisfies the condition of 30° ≦&agr;≦65°. The optical pickup further includes the previously mentioned objective lens as a second objective lens, which is optionally placed into the optical path between a first objective lens and an optical medium. As a result, the NA of the objective lens unit can be increased up to 0.85 while the working distance d2 is maintained to be 0.2 mm.
摘要翻译：具有可以容易地通过现有技术制造的具有高数值孔径（NA）的高密度聚焦物镜和使用该物镜进行高密度记录的光学拾取器。物镜包括放置在与光轴相对靠近轴的区域的第一透射部分，以发散入射光束; 第一反射部分，其分散地反射入射光束，第一反射部分面向第一透射部分; 第二反射部，形成在第一透射部周围的相对远轴的区域，聚焦并反射从第一反射部反射的光; 以及第二透射部，形成在所述第一反射部周围的相对远轴的区域，所述第二透射部折射并透射由所述第二反射部聚焦的光束作为周边光束，其中，所述光轴与所述第二反射部之间的最大角度α 周边光束满足30°<=α<= 65°的条件。光拾取器还包括作为第二物镜的前述物镜，其可选地放置在第一物镜和光介质之间的光路中。结果，物镜单元的NA可以增加到0.85，而工作距离d2保持为0.2mm。

7. 发明授权

US5987924A Lens mold and method of manufacturing a lens 失效
标题翻译：透镜模具及其制造方法
公开(公告)号：US5987924A
公开(公告)日：1999-11-23
申请号：US122846
申请日：1998-07-27
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： B29D11/00 , G02B3/10 , G02B27/58 , G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/13 , G11B7/135 , C03B11/00
CPC分类号： G11B7/1353 , B29D11/00009 , G02B27/58 , G02B3/10 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B2007/13727 , G11B7/0045 , G11B7/005 , Y10S425/808
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.
摘要翻译：可以在光学拾取装置中用作物镜的透镜装置包括沿着光盘面向盘并具有预定有效直径的物镜，沿着光路设置的光控制装置，用于控制光入射光束的近轴和远轴之间的中间区域，从而通过减小球面像差效应来提供在单个盘驱动器中使用不同厚度的盘的简化且便宜的装置。

8. 发明授权

US5665957A Lens device comprising light blocking means and an optical pickup apparatus using the lens device 失效
标题翻译：包括遮光装置的透镜装置和使用透镜装置的光学拾取装置
公开(公告)号：US5665957A
公开(公告)日：1997-09-09
申请号：US640553
申请日：1996-05-01
申请人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
发明人： Chul-woo Lee , Dong-ho Shin , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Pyong-yong Seong , Jang-hoon Yoo , Yong-hoon Lee
IPC分类号： B29D11/00 , G02B3/10 , G02B27/58 , G11B7/00 , G11B7/0045 , G11B7/005 , G11B7/09 , G11B7/13 , G11B7/135 , G01S1/20 , H01J3/14
CPC分类号： G11B7/1353 , B29D11/00009 , G02B27/58 , G02B3/10 , G11B7/0909 , G11B7/133 , G11B7/1367 , G11B7/1374 , G11B7/1381 , G11B7/13922 , G11B2007/0006 , G11B2007/13727 , G11B7/0045 , G11B7/005 , Y10S425/808
摘要： A lens device which can be used as an objective lens in an optical pickup apparatus includes an objective lens provided along a light path facing a disc and having a predetermined effective diameter, and light controlling means provided along the light path for controlling the light in an intermediate region between near and far axes of an incident light beam, thus providing a simplified and inexpensive device for using discs of differing thickness in a single disc drive, by reducing the spherical aberration effect.
摘要翻译：可以在光学拾取装置中用作物镜的透镜装置包括沿着光盘面向盘并具有预定有效直径的物镜，沿着光路设置的光控制装置，用于控制光入射光束的近轴和远轴之间的中间区域，从而通过减小球面像差效应来提供在单个盘驱动器中使用不同厚度的盘的简化且便宜的装置。

9. 发明授权

US06938890B2 Objective lens for high-density optical focusing and an optical disk in an optical pickup 失效
标题翻译：用于高密度光学聚焦的物镜和光学拾取器中的光盘
公开(公告)号：US06938890B2
公开(公告)日：2005-09-06
申请号：US09725879
申请日：2000-11-30
申请人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Dong-ho Shin
发明人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Dong-ho Shin
IPC分类号： G02B13/00 , G02B3/08 , G02B13/18 , G11B7/085 , G11B7/09 , G11B7/095 , G11B7/135 , G11B7/24 , G11B7/00
CPC分类号： G11B7/13927 , G11B7/1362 , G11B7/1374 , G11B7/1378 , G11B2007/13725
摘要： An optical pickup includes a light source emitting a laser beam and an optical path changing unit altering a traveling path of an incident beam. An objective lens, disposed on an optical path between the optical path changing unit and an optical disk, focuses the incident beam from the light source to form a light spot on the optical disk of the objective lens. The optical pickup further includes a photodetector and an detecting-correcting unit, arranged on the optical path between the optical path changing unit and the objective lens, performing at least one of detecting the thickness of the optical disk and correcting aberration caused by thickness variations of the optical disk. The objective lens includes a first transmitting portion divergently transmitting an incident beam, where the first transmitting portion is at a relatively near-axis region from an optical axis of the objective lens. A second transmitting portion transmits the incident beam, where the second transmitting portion is arranged facing the first transmitting portion. A first reflecting portion condenses and reflects the incident beam from the first transmitting portion, where the first reflecting portion is formed around the second transmitting portion. A second reflecting portion condenses and reflects the incident beam from the first reflecting portion towards the second transmitting portion, where the second reflecting portion is formed around the first transmitting portion.
摘要翻译：光拾取器包括发射激光束的光源和改变入射光束的行进路径的光路改变单元。设置在光路改变单元和光盘之间的光路上的物镜聚焦来自光源的入射光束，以在物镜的光盘上形成光斑。光学拾取器还包括光电检测器和检测校正单元，其布置在光路改变单元和物镜之间的光路上，执行检测光盘的厚度和校正由厚度变化引起的像差中的至少一个光盘。物镜包括发射入射光束的第一透射部分，其中第一透射部分处于距离物镜的光轴的相对近轴的区域。第二发送部分透射入射光束，其中第二透射部分布置成面对第一透射部分。第一反射部分将来自第一透射部分的入射光束冷凝并反射，其中第一反射部分围绕第二透射部分形成。第二反射部分将来自第一反射部分的入射光束聚集并反射到第二透射部分，其中第二反射部分围绕第一透射部分形成。

10. 发明授权

US6114689A Optical pickup device 失效
标题翻译：光学拾取装置
公开(公告)号：US6114689A
公开(公告)日：2000-09-05
申请号：US299664
申请日：1999-04-27
申请人： Kun-ho Cho , Jang-hoon Yoo , Yong-hoon Lee , Chul-woo Lee , Chong-sam Chung
发明人： Kun-ho Cho , Jang-hoon Yoo , Yong-hoon Lee , Chul-woo Lee , Chong-sam Chung
IPC分类号： G02B3/08 , G02B5/18 , G02B13/00 , G11B7/1374 , G02B3/00 , G11B7/12
CPC分类号： G11B7/1353 , G02B3/08 , G02B5/1876 , G11B7/122 , G11B7/1362 , G11B7/1374 , G11B7/1384 , G11B7/1387
摘要： An optical pickup device includes a light module, emitting light and receiving light reflected from a recording medium, and a solid immersion lens (SIL) member disposed in an optical path between the light module and the recording medium. The SIL has a planar surface facing the recording medium and a plurality of elliptically curved surfaces opposite the recording medium. The elliptically curved surfaces have different radii of curvature arranged symmetrical with respect to a central axis for focusing the incident light to form a tight beam spot on a recording plane of the recording medium.
摘要翻译：一种光学拾取装置，包括发光和接收从记录介质反射的光的光模块和设置在光模块和记录介质之间的光路中的固体浸没透镜（SIL）部件。 SIL具有面向记录介质的平面和与记录介质相对的多个椭圆曲面。椭圆曲面具有相对于中心轴对称布置的不同的曲率半径，用于聚焦入射光以在记录介质的记录平面上形成紧束光斑。

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