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1. 发明授权

US5822135A Lens device including a light controlling mechanism and an optical pickup apparatus using a lens device 失效
公开(公告)号：US5822135A
公开(公告)日：1998-10-13
申请号：US640474
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 , G02B9/00
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.

2. 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。

3. 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。

4. 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。

5. 发明授权

US5805556A Optical pickup apparatus having a holographic optical element 失效
标题翻译：具有全息光学元件的光学拾取装置
公开(公告)号：US5805556A
公开(公告)日：1998-09-08
申请号：US777130
申请日：1996-12-30
申请人： Chul-woo Lee , Jang-hoon Yoo , Yong-hoon Lee , Kyung-hwa Rim
发明人： Chul-woo Lee , Jang-hoon Yoo , Yong-hoon Lee , Kyung-hwa Rim
IPC分类号： G11B7/12 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/123
摘要： An optical pickup apparatus for recording and reproducing information, which is manufactured to be extremely small in a hybrid type. The optical pickup apparatus includes a first holographic optical element as a beam expander for diffracting to enlarge a diverging angle of an incident beam emitted from a light source and a second holographic optical element as an object lens for diffracting the incident beam whose diverging angle is enlarged by the first holographic optical element to focus the incident beam on an optical disk. Here, the first holographic optical element has a function of a beam splitter for diffracting a reflected beam to be separated as well as a function of a beam expander. The optical pickup apparatus is manufactured to be extremely small and ultralight due to its short optical path. Therefore, the optical pickup apparatus is influential on the miniaturization of various optical information processing systems, and contributes to a stable operation and a high speed search due to its excellent optical performance.
摘要翻译：一种用于记录和再现信息的光学拾取装置，其被制造为非常小的混合型。光拾取装置包括作为扩束器的第一全息光学元件，用于衍射以扩大从光源发射的入射光束的发散角和第二全息光学元件作为用于衍射发散角度扩大的入射光束的物镜通过第一全息光学元件将入射光束聚焦在光盘上。这里，第一全息光学元件具有用于衍射待分离的反射光束的分束器以及光束扩展器的功能。光学拾取装置由于其光路短而被制造成非常小和超轻。因此，光学拾取装置对各种光学信息处理系统的小型化有影响，由于其优异的光学性能，有助于稳定的操作和高速搜索。

6. 发明授权

US5986993A Optical pickup device having a diaphram with a predetermined aperture 失效
标题翻译：具有具有预定孔径的光阑的光学拾取装置
公开(公告)号：US5986993A
公开(公告)日：1999-11-16
申请号：US779520
申请日：1997-01-07
申请人： Jang-hoon Yoo , Chul-woo Lee , Kyung-hwa Rim
发明人： Jang-hoon Yoo , Chul-woo Lee , Kyung-hwa Rim
IPC分类号： G02B13/00 , G11B7/00 , G11B7/125 , G11B7/135
CPC分类号： G11B7/1374 , G11B7/139 , G11B2007/0006
摘要： An optical pickup device which can obtain a stable reproduction signal by increasing the numerical aperture of an objective lens includes an objective lens facing a disc, a light source for radiating light to the disc via the objective lens, a beam splitter provided between the light source and objective lens for directing the light reflected from the disc in a path different from that of the light travelled from the light source, a photodetector for detecting the light reflected from the disc and travelled via the beam splitter, and a diaphragm provided between the beam splitter and light source and having a predetermined numerical aperture.
摘要翻译：通过增加物镜的数值孔径可获得稳定的再现信号的光拾取装置包括面对盘的物镜，用于经由物镜将光照射到盘的光源，设置在光源之间的分束器以及物镜，用于将光从盘反射的光线导向与从光源行进的光不同的路径;光电检测器，用于检测从盘反射并经由分束器行进的光，以及设置在光束之间的光阑分光器和光源并具有预定的数值孔径。

7. 发明授权

US5777973A Reproducing and recording optical pickup compatible with discs having different thicknesses 失效
标题翻译：复制和记录与不同厚度的光盘兼容的光学拾取器
公开(公告)号：US5777973A
公开(公告)日：1998-07-07
申请号：US761826
申请日：1996-12-06
申请人： Jang-hoon Yoo , Chong-sam Chung , Chul-woo Lee , Kyung-hwa Rim , Kun-ho Cho
发明人： Jang-hoon Yoo , Chong-sam Chung , Chul-woo Lee , Kyung-hwa Rim , Kun-ho Cho
IPC分类号： G11B7/09 , G11B7/00 , G11B7/0037 , G11B7/08 , G11B7/125 , G11B7/13 , G11B7/135
CPC分类号： G11B7/1353 , G11B7/131 , G11B7/133 , G11B7/1367 , G11B7/1381 , G11B2007/0006 , G11B2007/13727 , G11B7/0037 , G11B7/0909
摘要： A reproducing/recording optical pickup compatible with discs having different thicknesses includes a transparent plate having a central portion formed with a diffraction grating pattern for diffracting the light travelling from the light source to the objective lens, and a transparent portion through which the light passes, and a photodetector having first and second light receiving portions. The zero-order transmitted light and the passing light are focused using all regions of the aperture of the objective lens with respect to a thin disc. The positive first-order diffracted light diffracted by the diffraction grating pattern of the transparent plate is focused onto a thick disc by partial regions of the objective lens. Then, the reflected lights thereof are detected by the first and second light receiving portions, respectively. Because signals for reproduction and servo for each disc are detected as the detection signals of the first and second light receiving portions, stable servo and noiseless reproduction are possible, irrespective of the thickness of the disc used.
摘要翻译：与具有不同厚度的光盘兼容的再现/记录光学拾取器包括透明板，其具有形成有衍射光栅图案的中心部分，用于将从光源传播的光衍射到物镜，以及光通过的透明部分，以及具有第一和第二光接收部分的光电检测器。使用物镜的孔径的相对于薄盘的所有区域聚焦零级透射光和通过光。由透明板的衍射光栅图案衍射的正一级衍射光被物镜的部分区域聚焦在厚盘上。然后，其反射光分别由第一和第二光接收部分检测。由于每个盘的再现和伺服信号被检测为第一和第二光接收部分的检测信号，所以与所使用的盘的厚度无关，可以进行稳定的伺服和无噪声再现。

8. 发明授权

US5699339A Inverse image generating method apparatus thereof and focus error detecting method using the same and apparatus thereof 失效
标题翻译：其反像图像生成方法装置和使用其的聚焦误差检测方法及其装置
公开(公告)号：US5699339A
公开(公告)日：1997-12-16
申请号：US508253
申请日：1995-07-27
申请人： Chul-woo Lee , Chong-sam Chung , Jang-hoon Yoo , Kyung-hwa Rim
发明人： Chul-woo Lee , Chong-sam Chung , Jang-hoon Yoo , Kyung-hwa Rim
IPC分类号： G11B7/08 , G11B7/09 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1356 , G11B7/0908 , G11B7/0917 , G11B7/094 , G11B2007/0919
摘要： In detecting a focus error for an optical pickup, an inverse image generator for generating inverse images onto a light beam reflected from an optical disk is used in a focus error detecting method and apparatus thereof. The inverse image generator is composed of a semi-transmissive plane for splitting a light beam into first and second light beams, first and second prisms for inverting the phase of the second light beam, and third and fourth prisms for synthesizing the phase-inverted second light beam with the first light beam. Also, the inverse image generator has two quadrant wave plates, a polarization plane and light synthesizing plane for preventing a light loss. Since the errors due to an optical axis variation is eliminated from the focus error signal detected from the synthetic light beam radiated by the inverse generator, the optical pickup can be driven with stability.
摘要翻译：在检测光拾取器的聚焦误差时，在聚焦误差检测方法及其装置中使用用于在从光盘反射的光束上产生反转图像的逆图像发生器。逆图像生成器由用于将光束分割为第一和第二光束的半透射平面，用于反转第二光束的相位的第一和第二棱镜以及用于合成相位反转的第二棱镜的第三和第四棱镜光束与第一光束。此外，逆图像生成器具有两个象限波片，一个用于防止光损失的偏振面和光合成平面。由于从由逆发生器辐射的合成光束检测到的聚焦误差信号中消除了由于光轴变化引起的误差，所以可以稳定地驱动光学拾取器。

9. 发明授权

US5802037A Optical detector with two detecting regions for reproducing and recording information on two kinds of disks having different thicknesses 失效
标题翻译：具有两个检测区域的光学检测器，用于在具有不同厚度的两种盘上再现和记录信息
公开(公告)号：US5802037A
公开(公告)日：1998-09-01
申请号：US708988
申请日：1996-09-06
申请人： Chul-woo Lee , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Jang-hoon Yoo , Soo-yeul Jung
发明人： Chul-woo Lee , Kyung-hwa Rim , Chong-sam Chung , Kun-ho Cho , Jang-hoon Yoo , Soo-yeul Jung
IPC分类号： G11B7/08 , G11B7/00 , G11B7/09 , G11B7/13
CPC分类号： G11B7/131 , G11B7/0909 , G11B7/133 , G11B2007/0006
摘要： An optical pickup device which is capable of reproducing and recording information from/onto at least two kinds of discs having different thicknesses includes a light source, an objective lens provided along the light path from the light source facing the plane of a disc and having a predetermined effective diameter, a beam splitter provided between the objective lens and the light source, and a photodetector for detecting the beam split from the light splitter and reflected from the disc, wherein the photodetector has a first detection region and a second detection region provided in the peripheral portion of the first detection region. The optical pickup device is simplified and the manufacturing cost therefor is low. Also, by reducing the spherical aberration effect for the light, discs having different thicknesses can be used for a single disc drive.
摘要翻译：能够从具有不同厚度的至少两种光盘再现和记录信息的光学拾取装置包括：光源，沿着从光源面向光盘面的光路设置的物镜，具有设置在所述物镜和所述光源之间的分束器，以及用于检测从所述分光器分离并从所述光盘反射的光束的光电检测器，其中所述光电检测器具有第一检测区域和设置在所述光源中的第二检测区域第一检测区域的周边部分。光拾取装置简化，制造成本低。此外，通过减小光的球面像差效应，可以将具有不同厚度的盘用于单个盘驱动器。

10. 发明授权

US5629514A Critical angle focus error detector 失效
标题翻译：临界角聚焦误差检测器
公开(公告)号：US5629514A
公开(公告)日：1997-05-13
申请号：US458165
申请日：1995-06-02
申请人： Chul-woo Lee , Chong-sam Chung , Jang-hoon Yoo , Kyung-hwa Rim
发明人： Chul-woo Lee , Chong-sam Chung , Jang-hoon Yoo , Kyung-hwa Rim
IPC分类号： G11B7/09 , G11B7/135 , G01J1/20 , G11B7/00
CPC分类号： G11B7/1356 , G11B7/0908 , G11B7/0917 , G11B7/0943 , G11B2007/0919
摘要： A focus error detector for detecting a signal representing a degree of a focus error of an objective lens with respect to an optical disk in an optical pickup, in order to eliminate errors due to an optical axis shift or tilt of the reflected light reflected from the optical disk, includes a diffraction device for diffracting and splitting the reflected light reflected. The focus error detector a critical angle reflector having critical angle reflecting planes for reflecting the two diffracted light rays at two critical angles, two bi-segmented photo-detectors for receiving the two diffracted light rays reflected from the critical angle reflector, respectively, and detecting signals depending on the received light amount, and a circuit for differentiating and summing each signal of the two bi-segmented photo-detectors so as to offset the light amount difference due to the tilt or shift of the reflected light and outputting a desired signal. Therefore, only an original focus error signal is output, irrespective of an optical shift or tilt of the reflected light, so that malfunction of the optical pickup is prevented and clean recording and reproduction is enabled.
摘要翻译：一种聚焦误差检测器，用于检测表示物镜相对于光学拾取器中的光盘的聚焦误差的程度的信号，以便消除由于光学偏移反射的反射光的光轴偏移或倾斜引起的误差光盘包括用于衍射和分裂反射的反射光的衍射装置。聚焦误差检测器，具有用于以两个临界角度反射两个衍射光线的临界角反射面的临界角反射镜，分别用于接收从临界角反射器反射的两个衍射光线的两个双段光电检测器，信号，以及用于对两个双分段光电检测器的每个信号进行微分和求和以便偏移由于反射光的倾斜或偏移引起的光量差异并输出所需信号的电路。因此，不管反射光的光学偏移或倾斜如何，仅输出原始聚焦误差信号，从而防止光学拾取器的故障，并且能够进行清洁的记录和再现。

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