公开(公告)号：KR1020000075010A

公开(公告)日：2000-12-15

申请号：KR1019990019307

申请日：1999-05-27

Applicant: 한국과학기술원

Inventor： 오형렬 ,  권대갑

IPC: G11B7/09 ,  G11B7/1387

Abstract: PURPOSE: A head device of a data recording/reproducing apparatus for a high density optical recording medium and method of controlling light beam using the device are provided to stably control a servo and increase a recording/reproducing speed, thereby increasing a recording density of the optical recording medium. CONSTITUTION: The head device of a data recording/reproducing apparatus for a high density optical recording medium comprises an optical recording medium(11); a light source(1) for generating a light beam(14); a lens for collecting the light beam on the optical recording medium; a first piezoelectric device deformed responding to an applied electric signal to move the lens in an optical axis direction by a very small displacement; a second piezoelectric device deformed responding to the applied electric signal to move the lens in a radial direction of the optical recording medium by the very small displacement. The head device further comprises a collimating lens(2) disposed between the light source and the lens to converting the divergent beam irradiated from the light source into a parallel light and advancing to the lens; and an optical detector(13) for converting a reflecting light from the optical recording medium into an electric signal.

Abstract translation: 目的：提供一种用于高密度光记录介质的数据记录/再现装置的头装置和使用该装置控制光束的方法，以稳定地控制伺服并增加记录/再现速度，从而提高记录/再现速度的记录密度 光记录介质。 构成：用于高密度光记录介质的数据记录/再现装置的头装置包括光记录介质（11）; 用于产生光束（14）的光源（1）; 用于收集光记录介质上的光束的透镜; 响应于施加的电信号而变形的第一压电装置，以使透镜沿光轴方向移动非常小的位移; 响应于所施加的电信号而变形的第二压电装置，通过非常小的位移沿着光学记录介质的径向方向移动透镜。 头装置还包括设置在光源和透镜之间的准直透镜（2），用于将从光源照射的发散光束转换为平行光并前进到透镜; 以及用于将来自光学记录介质的反射光转换成电信号的光学检测器（13）。

公开(公告)号：KR1020000074903A

公开(公告)日：2000-12-15

申请号：KR1019990019170

申请日：1999-05-27

Applicant: 한국과학기술원

Inventor： 오형렬 ,  권대갑

IPC: G02B3/00

CPC classification number: G02B17/086 ,  B82Y10/00 ,  G02B3/00 ,  G02B17/0808 ,  G03F7/70383 ,  G11B7/1374 ,  G11B7/1387 ,  G11B7/13922 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2007/13725

Abstract: PURPOSE: A parabolic lens with super high resolution is provided to widen convergent angle of light and increases refractive index of a medium at which a spot is formed when the wavelength of light and diameter of incident beam are uniform, thereby increasing a recording density in the recording or reproducing of data, increasing an observation resolution of a microscope, and reducing a semiconductor line width by applying to a semiconductor lithography. CONSTITUTION: In a parabolic lens with super high resolution for focusing light input from the outside, one side of the lens is flat and the other side is curved in a parabolic form. The curved surface of the lens other than the apex is reflection-coated. When parallel light is incident on the flat surface of the lens, the light is reflected several times inside the lens and then transmitted to an object outside the lens through the apex of the lens at which there is no coat.

Abstract translation: 目的：提供具有超高分辨率的抛物面透镜，以增加光的会聚角度，并增加光线波长和入射光束直径均匀时形成光点的介质的折射率，从而提高记录密度 记录或再现数据，增加显微镜的观察分辨率，并通过应用于半导体光刻来降低半导体线宽度。 构成：在具有超高分辨率的抛物面透镜中，用于聚焦从外部输入的光，透镜的一侧是平坦的，另一侧以抛物线形式弯曲。 除顶点之外的透镜的曲面被反射涂覆。 当平行光入射到透镜的平坦表面上时，光在透镜内被反射若干次，然后通过没有涂层的透镜的顶点透射到透镜外部的物体。

公开(公告)号：KR100454264B1

公开(公告)日：2004-10-26

申请号：KR1020020032989

申请日：2002-06-12

Applicant: 한국과학기술원

Inventor： 권대갑 ,  윤형길 ,  오형렬 ,  이준희

IPC: G11B7/00

Abstract: PURPOSE: A device and a method for assembling and evaluating 2-group lenses are provided to analyze phase information for interference patterns captured by a CCD camera to align optical axes of 2-group lenses, thereby speedily carrying out the assembling and evaluating of the 2-group lenses. CONSTITUTION: A device for assembling and evaluating 2-group lenses includes a base for disposing a second lens(12) and mounted with a beam generator(30) at a side of the base for generating laser beams. A beam splitter(40) is disposed in the light advancing direction of the beam generator. A reference mirror(50) is disposed in the advancing direction of one of the splitted beams. A folding mirror(60) is disposed in the advancing direction of another splitted beam. A piezo-electric driver(52) is connected to the reference mirror for the micro control of a distance between the reference mirror and the beam splitter. The beam reflected to the folding mirror is incident to an optical axis(z) of the second lens fixed to the base. Another folding mirror is disposed to a bottom surface of the second lens for obtaining a beam reflected from a detection surface. A CCD camera(70) is disposed around the beam splitter for photographing the interference pattern of the beams coming from the reference and folding mirrors. A computer(80) electrically connected to the CCD camera analyzes phase information from image information input to the CCD camera and determines the assembling work if the phase information is in a reference value range. If the phase information is beyond the reference value range, the computer drives a series of programs to drive an xy-stage/z-axis drivers for controlling the position of the first lens and the distance between the first and second lenses.

Abstract translation: 目的：提供一种用于组装和评估2组透镜的装置和方法，以分析由CCD照相机拍摄的干涉图案的相位信息以对准2组透镜的光轴，从而快速地进行2组透镜 组镜头。 本发明提供了一种用于组装和评估2组透镜的装置，包括用于放置第二透镜（12）的基座，并且在基座的一侧安装有用于产生激光束的光束发生器（30）。 分束器（40）沿光束发生器的光前进方向设置。 参考反射镜（50）设置在其中一个分束的前进方向上。 折叠式反射镜（60）设置在另一分束的前进方向上。 压电驱动器（52）连接到参考反射镜，用于微控制参考反射镜和分束器之间的距离。 反射到折叠式反射镜的光束入射到固定到基座的第二透镜的光轴（z）。 另一个折叠式反射镜设置在第二透镜的底面上，用于获得从检测表面反射的光束。 CCD照相机（70）设置在分束器周围，用于拍摄来自参考镜和折叠镜的​​光束的干涉图案。 电连接到CCD照相机的计算机（80）根据输入到CCD照相机的图像信息分析相位信息，并且如果相位信息处于参考值范围内则确定组装工作。 如果相位信息超出参考值范围，则计算机驱动一系列程序以驱动用于控制第一透镜的位置和第一透镜与第二透镜之间的距离的xy-级/ z-轴驱动器。

公开(公告)号：KR100317139B1

公开(公告)日：2001-12-22

申请号：KR1019990019170

申请日：1999-05-27

Applicant: 한국과학기술원

Inventor： 오형렬 ,  권대갑

IPC: G02B3/00

CPC classification number: G02B17/086 ,  B82Y10/00 ,  G02B3/00 ,  G02B17/0808 ,  G03F7/70383 ,  G11B7/1374 ,  G11B7/1387 ,  G11B7/13922 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2007/13725

Abstract: 본발명은, 광의파장, 입사빔의직경이일정할때, 광의수렴각을크게하고, 스팟이형성되는매질의굴절률을증기시킬수 있도록하는초고분해능포물선형렌즈를제공하는데그 목적이있다. 본발명에의하면, 외부로부터입사되는광을집광시키기위한집광렌즈에있어서, 상기렌즈의한면은평면이고, 다른한 면은포물선형태의곡선면을형성하고있으며, 상기렌즈의곡선면은정점을제외한다른부분이반사코팅되어있으며, 상기렌즈의평면에평행광이입사될경우에, 상기렌즈의내부에서몇번의반사를거친후에, 코팅이없는상기렌즈의정점을통하여외부의물체에전달되는것을특징으로하는초고분해능포물선형렌즈가제공된다.

公开(公告)号：KR1020030096476A

公开(公告)日：2003-12-31

申请号：KR1020020032989

申请日：2002-06-12

Applicant: 한국과학기술원

Inventor： 권대갑 ,  윤형길 ,  오형렬 ,  이준희

IPC: G11B7/00

Abstract: PURPOSE: A device and a method for assembling and evaluating 2-group lenses are provided to analyze phase information for interference patterns captured by a CCD camera to align optical axes of 2-group lenses, thereby speedily carrying out the assembling and evaluating of the 2-group lenses. CONSTITUTION: A device for assembling and evaluating 2-group lenses includes a base for disposing a second lens(12) and mounted with a beam generator(30) at a side of the base for generating laser beams. A beam splitter(40) is disposed in the light advancing direction of the beam generator. A reference mirror(50) is disposed in the advancing direction of one of the splitted beams. A folding mirror(60) is disposed in the advancing direction of another splitted beam. A piezo-electric driver(52) is connected to the reference mirror for the micro control of a distance between the reference mirror and the beam splitter. The beam reflected to the folding mirror is incident to an optical axis(z) of the second lens fixed to the base. Another folding mirror is disposed to a bottom surface of the second lens for obtaining a beam reflected from a detection surface. A CCD camera(70) is disposed around the beam splitter for photographing the interference pattern of the beams coming from the reference and folding mirrors. A computer(80) electrically connected to the CCD camera analyzes phase information from image information input to the CCD camera and determines the assembling work if the phase information is in a reference value range. If the phase information is beyond the reference value range, the computer drives a series of programs to drive an xy-stage/z-axis drivers for controlling the position of the first lens and the distance between the first and second lenses.

Abstract translation: 目的：提供一种用于组合和评估2组透镜的装置和方法，用于分析由CCD相机拍摄的干涉图案的相位信息，以对准2组透镜的光轴，从而快速进行2组透镜的组装和评估 - 组镜头。 构成：用于组合和评估2组透镜的装置包括用于设置第二透镜的基座，并且在基座的一侧安装有光束发生器（30），用于产生激光束。 分束器（40）沿光束发生器的光前进方向设置。 参考反射镜（50）设置在分割光束之一的前进方向上。 折叠镜（60）沿另一分割光束的前进方向设置。 压电驱动器（52）连接到参考反射镜，用于对参考反射镜和分束器之间的距离进行微控制。 反射到折叠镜的光束入射到固定到基座的第二透镜的光轴（z）。 另一个折叠镜设置在第二透镜的底表面上，用于获得从检测表面反射的光束。 CCD照相机（70）设置在分束器周围，用于拍摄来自参考和折叠镜的​​光束的干涉图案。 电连接到CCD摄像机的计算机（80）分析从输入到CCD照相机的图像信息的相位信息，并且如果相位信息在参考值范围内，则确定组装工作。 如果相位信息超过参考值范围，则计算机驱动一系列程序来驱动用于控制第一透镜的位置和第一和第二透镜之间的距离的xy级/ z轴驱动器。

公开(公告)号：KR100341357B1

公开(公告)日：2002-06-21

申请号：KR1019990019307

申请日：1999-05-27

Applicant: 한국과학기술원

Inventor： 오형렬 ,  권대갑

IPC: G11B7/09 ,  G11B7/1387

Abstract: 본발명은고밀도광기록매체의기록/재생에적합하도록한 광기록매체의기록/재생장치의헤드장치및 이를이용한광빔제어방법에관한것이다. 본발명의고밀도광기록매체용데이터기록/재생장치의헤드장치는광기록매체와, 광빔을발생하는광원과, 광빔을광기록매체상에집광시키는솔리드이머션렌즈와, 자신에게인가되는전기적인신호에응답하여변형됨으로써솔리드이머션렌즈를광축방향에서미소변위폭만큼이동시키는제1 압전소자와, 자신에게인가되는전기적인신호에응답하여변형됨으로써솔리드이머션렌즈를광기록매체의지름방향에서미소변위폭만큼이동시키는제2 압전소자와, 광기록매체상에서반사되는반사광을전기적인신호로변환하는광검출기를구비한다. 본발명에의하면, 안정된서보제어와기록/재생속도를향상시키게되므로고밀도광기록매체의기록/재생에적합하게된다.