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1. 发明公开

KR1020110040193A 씨디 및 디브이디 겸용 광픽업 无效
标题翻译：光学拾取光盘和DVD
公开(公告)号：KR1020110040193A
公开(公告)日：2011-04-20
申请号：KR1020090097369
申请日：2009-10-13
申请人： 엘지전자 주식회사
发明人： 임부빈 , 전지성 , 김용상 , 이호길 , 한현석 , 강도원 , 이인우 , 이현민 , 황호성 , 박진현 , 김만기 , 이승재 , 신용갑 , 채경훈
IPC分类号： G11B7/131 , G11B7/1376 , G11B7/1374 , G11B7/1275
CPC分类号： G11B7/1275 , G11B7/1374 , G11B7/1376 , G11B7/1381 , G11B7/139 , G11B2220/2545 , G11B2220/2562
摘要： PURPOSE: An optical pickup for CD and DVD is provided to reduce a material cost by the deletion of an optical device and to increase the data recording quality. CONSTITUTION: A wavelength laser diode(30) irradiates laser beam for CD and laser beam for DVD. A collimator lens(37) converts the laser beam into the collimated light. An object lens(39) condenses the collimated light. The object lens forms the beam spot on an optical disc(40). A photo diode(35) receives light which is reflected to the optical disc.
摘要翻译：目的：提供用于CD和DVD的光学拾取器，以通过删除光学装置来减少材料成本并提高数据记录质量。构成：波长激光二极管（30）照射用于CD的激光束和用于DVD的激光束。准直透镜（37）将激光束转换成准直光。物镜（39）冷凝准直光。物镜在光盘（40）上形成束斑。光电二极管（35）接收被光反射的光。

2. 发明公开

KR1020090064636A 광픽업장치 无效
标题翻译：光学拾取器件
公开(公告)号：KR1020090064636A
公开(公告)日：2009-06-22
申请号：KR1020070131907
申请日：2007-12-17
申请人： 엘지전자 주식회사
发明人： 정충인 , 양선호 , 이제종 , 한현석 , 김성일 , 이경언 , 이홍규 , 이택수 , 이은표 , 정제현 , 이현민 , 박세환 , 박재학 , 임부빈
IPC分类号： G11B7/1374 , G11B7/1359
CPC分类号： G11B7/1374 , G11B7/1275 , G11B7/1353 , G11B7/1356 , G11B7/1369 , G11B7/1392 , G11B2007/0006 , G11B2220/2541 , G11B2220/2545 , G11B2220/2562 , G11B2220/2579
摘要： An optical pickup device is provided to perform the tracking servo of an optical disc accurately by positioning a diffraction grating on a photo diode single route. An optical pickup device comprises: a first optical source part(111) emitting the laser light of wavelength corresponding to DVD/CD; a second optical source part(112) emitting the laser light of the wavelength corresponding to HD-DVD/BD; a first objective lens(131) having openings which are suitable for HD-DVD/DVD/CD; a second objective lens(132) having openings which are suitable for BD; and a prism reflecting or passing the laser light comes out from a first light source or a second light source or the laser light reflected in the optical disc.
摘要翻译：提供了一种光学拾取装置，通过将衍射光栅放置在光电二极管单路上来精确地执行光盘的跟踪伺服。光拾取装置包括：发射与DVD / CD相对应的波长的激光的第一光源部分（111）发射对应于HD-DVD / BD的波长的激光的第二光源部分（112）; 具有适于HD-DVD / DVD / CD的开口的第一物镜（131）; 具有适于BD的开口的第二物镜（132）; 反射或通过激光的棱镜从第一光源或第二光源或在光盘中反射的激光射出。

3. 发明授权

KR101152710B1 광픽업 장치 失效
标题翻译：用于记录/重放数据的装置
公开(公告)号：KR101152710B1
公开(公告)日：2012-06-15
申请号：KR1020060061956
申请日：2006-07-03
申请人： 엘지전자 주식회사
发明人： 임부빈
IPC分类号： G11B7/1353
摘要： An optical pickup apparatus is provided to acquire a stable track error signal even in an off-axis array by eliminating AC component of a sub signal with a diffraction grating. An optical pickup apparatus comprises a light emitting unit, a diffraction grating(140a,140b,140c), and a light receiving unit. The light emitting unit is configured to generate beam projected to a recording medium. The diffraction grating divides diffraction light, which is diffracted by the recording medium, according to the number of diffraction. The light receiving unit is configured to receive the beam divided by the diffraction grating. The light emitting unit projects one beam to the recording medium. The diffraction light includes a 0 beam and a ±1 beam. 0 beam and +1 beam, and 0 beam and -1 beam overlap partially when reflected from the optical disk. The light receiving unit receives a main signal and a sub signal. The 0 beam, passed through the diffraction grating, is the main signal. The ±1 beam, passed through the diffraction grating, is the sub signal.

4. 发明公开

KR1020090010405A 광 검출기 및 이를 구비하는 광 픽업 장치 无效
标题翻译：光电摄影机及其相机的光学设备
公开(公告)号：KR1020090010405A
公开(公告)日：2009-01-30
申请号：KR1020070073481
申请日：2007-07-23
申请人： 엘지전자 주식회사
发明人： 박세환 , 양선호 , 김성일 , 임부빈 , 이홍규 , 이은표 , 임부빈 , 정충인 , 박재학 , 이경언
IPC分类号： G11B7/131
摘要： An optical detector and an optical pickup device including the same are provided to improve compatibility between different optical recording media and remove inter-layer interference of disc and noise of reproduction/recording signal by using light sources emitting different wavelength. An optical detector(300) comprises a first detection unit(310) detecting the light of a first wavelength, a second detection unit(320) which crosses with the first detection unit and detects the light of a second wavelength, and the third detection unit(330) which is located to cross with the first detection unit and apart from the second detection unit and detects the light of a third wavelength. Each detection unit includes cells which detect 0-order, (-1)-order, and (+1)-order light of each wavelength light, respectively.
摘要翻译：提供了一种光检测器和包括其的光拾取装置，以通过使用发射不同波长的光源来改善不同光记录介质之间的兼容性并消除盘的层间干扰和再现/记录信号的噪声。光检测器（300）包括检测第一波长的光的第一检测单元（310），与第一检测单元交叉并检测第二波长的光的第二检测单元（320），以及第三检测单元（330），其位于与第一检测单元交叉并且与第二检测单元分离，并检测第三波长的光。每个检测单元包括分别检测每个波长光的0级，（-1）级和（+ 1级）光的单元。

5. 发明公开

KR1020080017690A 광 픽업 无效
标题翻译： OPTICAL PICK-UP
公开(公告)号：KR1020080017690A
公开(公告)日：2008-02-27
申请号：KR1020060079192
申请日：2006-08-22
申请人： 엘지전자 주식회사
发明人： 임부빈
IPC分类号： G11B7/1353 , G11B7/09
摘要： An optical pick-up is provided to remove interlayer noise in a multi-layer disk and to remove influence of a dead zone by diffracting some of the projected beams through first and second diffraction devices. An optical pick-up comprises a light source(110), an objective lens(170), a beam splitter(130), first and second diffraction devices, a sensor lens(180), and a beam detecting unit(190). The first diffraction device generates the second beam from the beam reflected from a beam storage medium. The beam detecting unit includes a first detecting unit for receiving the first beam, and two sub detecting units for receiving the second beam. The second diffraction device diffracts some of the beam reflected by another layer to prevent the beam from entering the beam detecting unit. The first and second diffraction devices include first and second areas for diffracting some of the projected beam.
摘要翻译：提供光学拾取器以消除多层盘中的层间噪声，并且通过将一些投射光束衍射通过第一和第二衍射装置来去除死区的影响。光学拾取器包括光源（110），物镜（170），分束器（130），第一和第二衍射装置，传感器透镜（180）和光束检测单元（190）。第一衍射装置从光束存储介质反射的光束产生第二光束。光束检测单元包括用于接收第一光束的第一检测单元和用于接收第二光束的两个子检测单元。第二衍射装置衍射由另一层反射的一些光束，以防止光束进入光束检测单元。第一和第二衍射装置包括用于衍射一些投影束的第一和第二区域。

6. 发明公开

KR1020080003555A 광픽업 장치 失效
标题翻译：记录/播放数据的装置
公开(公告)号：KR1020080003555A
公开(公告)日：2008-01-08
申请号：KR1020060061956
申请日：2006-07-03
申请人： 엘지전자 주식회사
发明人： 임부빈
IPC分类号： G11B7/1353
摘要： An optical pickup apparatus is provided to acquire a stable track error signal even in an off-axis array by eliminating AC component of a sub signal with a diffraction grating. An optical pickup apparatus comprises a light emitting unit, a diffraction grating(140a,140b,140c), and a light receiving unit. The light emitting unit is configured to generate beam projected to a recording medium. The diffraction grating divides diffraction light, which is diffracted by the recording medium, according to the number of diffraction. The light receiving unit is configured to receive the beam divided by the diffraction grating. The light emitting unit projects one beam to the recording medium. The diffraction light includes a 0 beam and a ±1 beam. 0 beam and +1 beam, and 0 beam and -1 beam overlap partially when reflected from the optical disk. The light receiving unit receives a main signal and a sub signal. The 0 beam, passed through the diffraction grating, is the main signal. The ±1 beam, passed through the diffraction grating, is the sub signal.
摘要翻译：提供一种光学拾取装置，即使通过用衍射光栅消除副信号的AC分量，即使在离轴阵列中也可获得稳定的轨道误差信号。光拾取装置包括发光单元，衍射光栅（140a，140b，140c）和光接收单元。发光单元被配置为产生投射到记录介质的光束。衍射光栅根据衍射数来划分由记录介质衍射的衍射光。光接收单元被配置为接收由衍射光栅分割的光束。发光单元将一个光束投射到记录介质。衍射光包括0光束和±1光束。 0光束和+1光束，0光束和-1光束从光盘反射时部分重叠。光接收单元接收主信号和子信号。通过衍射光栅的0光束是主要信号。通过衍射光栅的±1束是子信号。

7. 发明公开

KR1020080000030A 광 픽업 失效
标题翻译： OPTICAL PICK-UP
公开(公告)号：KR1020080000030A
公开(公告)日：2008-01-02
申请号：KR1020060057235
申请日：2006-06-26
申请人： 엘지전자 주식회사
发明人： 임부빈
IPC分类号： G11B7/1353
摘要： An optical pickup is provided to obtain a stable error signal and to improve reproducing or recording performance thereof by decreasing interference between the layers of a multi-layered disc. An optical pickup(100) comprises a beam source(110), an objective lens(160), a beam splitter(130), a diffraction grating(140), a sensor lens(170), and an optical detecting unit(180). The beam source emits a beam with predetermined wavelength. The objective lens collects the beam emitted from the beam source at an optical storage medium. The beam splitter penetrates or reflects the beam emitted from the beam source, and the beam reflected at the optical storage medium. The diffraction grating diffracts a part of the beam passed through a first area, among the beams divided and reflected from the optical storage medium, and diffracts the part of the beam passed through a second area inside the first area at a position different from the position where the beam diffracted by the first area is focused. The sensor lens generates a luminous point at the beam reflected from the optical storage medium. The optical detecting unit includes a main detecting unit and two first sub detecting units. The main detecting unit receives the beam passed through the diffraction grating directly, and the two first sub detecting units receive the beam diffracted by the first area.
摘要翻译：提供光学拾取器以获得稳定的误差信号，并且通过减少多层盘的层之间的干扰来改善其再现或记录性能。光学拾取器（100）包括光束源（110），物镜（160），分束器（130），衍射光栅（140），传感器透镜（170）和光学检测单元（180）。光束源发射具有预定波长的光束。物镜在光存储介质上收集从光束源发射的光束。分束器穿透或反射从光束源发射的光束，以及在光学存储介质处反射的光束。衍射光栅衍射通过光存储介质分离和反射的光束中的第一区域的一部分光束，并且将在第一区域内的第二区域的部分通过不同于该位置的位置衍射其中由第一区域衍射的光束被聚焦。传感器透镜在从光学存储介质反射的光束处产生发光点。光检测单元包括主检测单元和两个第一子检测单元。主检测单元直接接收通过衍射光栅的光束，两个第一子检测单元接收由第一区域衍射的光束。

8. 发明公开

KR1020070084802A 광픽업 장치 无效
标题翻译：光学拾取器件
公开(公告)号：KR1020070084802A
公开(公告)日：2007-08-27
申请号：KR1020060017019
申请日：2006-02-22
申请人： 엘지전자 주식회사
发明人： 정성윤 , 이제종 , 임형준 , 임부빈
IPC分类号： G11B7/1365 , G11B7/1353
摘要： An optical pickup device is provided to perform stable servo operation for a multi-layer disc by installing a QWP(Quarter Wave Plate) and a polarization hologram element between a collimator lens and an object lens and preventing a noise beam of a different layer from being inputted to a photo detector. A QWP(19) shifts an inputted laser beam by a 1/4 wavelength and transmits the shifted laser beam. A hologram element(18) exactly transmits a laser beam emitted from a light emitting element. The hologram element(18) filters the laser beam inputted through the QWP(19) as a certain pattern, and selectively transmits the filtered laser beam.
摘要翻译：提供了一种光学拾取装置，通过在准直透镜和物镜之间安装QWP（四分之一波片）和偏振全息元件并防止不同层的噪声光束成为多层光盘来执行稳定的伺服操作输入到光电检测器。 QWP（19）将输入的激光束移动1/4波长，并传输偏移的激光束。全息元件（18）精确地透射从发光元件发射的激光束。全息元件（18）将通过QWP（19）输入的激光束作为一定的图案进行滤光，并选择性地透过滤光的激光束。

9. 发明授权

KR101189125B1 광 픽업 失效
标题翻译：光学拾音
公开(公告)号：KR101189125B1
公开(公告)日：2012-10-10
申请号：KR1020060057235
申请日：2006-06-26
申请人： 엘지전자 주식회사
发明人： 임부빈
IPC分类号： G11B7/1353
摘要： 본 발명은 광 픽업에 관한 것이다. 본 발명의 일 실시예에서, 디스크에서 0차 및 +/- 1차 빔으로 분기된 상태로 반사될 때 +/- 1차 빔에 대응되는 영역을 포함하지 않는 제 1 패턴에 의해 0차 빔이 회절하여 서브 빔이 형성되고, 다른 층에서 반사되는 빔이 제 1 패턴에 의해 서브 빔을 수광하는 서브 빔용 PD에 회절되지 않도록 제 1 패턴 내에 제 2 패턴이 형성된다. 이때, 서브 빔용 PD는 다른 층에서 반사되어 제 1 패턴과 제 2 패턴을 그대로 통과하는 빔의 유효 반경 밖에 위치해야 하고, 이를 위해 제 1 패턴의 회절 각도가 조절된다. 따라서, 다른 층에서 반사되는 빔이 서브 빔에 입사하지 않게 되어, 안정적인 트래킹 에러 신호를 얻고 재생 또는 기록 성능이 향상된다.
DPP, MPP, SPP, grating, 트래킹 에러 신호, 층간 간섭, 회절

10. 发明公开

KR1020110096914A 멀티 광픽업 无效
标题翻译：多光拾取
公开(公告)号：KR1020110096914A
公开(公告)日：2011-08-31
申请号：KR1020100016473
申请日：2010-02-24
申请人： 엘지전자 주식회사
发明人： 한현석 , 강도원 , 김현준 , 이인우 , 박호만 , 김용상 , 임부빈
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/1275 , G11B2220/2541 , G11B2220/2545 , G11B2220/2562
摘要： 본 발명에 따른 멀티 광픽업은, 예를 들어, 제1 파장의 레이저 빔을 분리하기 위한 제1 격자 영역과 제2 파장의 레이저 빔을 분리하기 위한 제2 격자 영역으로 양분된 간단한 구조의 하프 그레이팅(Half Grating)을, 상기 제1 파장의 레이저 빔과 제2 파장의 레이저 빔이 중첩되기 이전의 광 경로의 특정 위치에 설치하여 사용함으로써, 위상 시프트 그레이팅, 파장 선택형 그레이팅, 양면 그레이팅 등과 같이 특수하게 제작된 고가격의 광학소자를 사용하지 않아도 되므로, 광픽업의 제조 비용을 절감함과 아울러, 광픽업의 생산성 및 성능을 향상시킬 수 있게 된다.

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