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公开(公告)号：US06994808B2
公开(公告)日：2006-02-07
申请号：US10419080
申请日：2003-04-21
申请人： Myung-bok Lee , Jin-seung Sohn , Eun-hyoung Cho , Young-pil Park
发明人： Myung-bok Lee , Jin-seung Sohn , Eun-hyoung Cho , Young-pil Park
IPC分类号： B29D11/00
CPC分类号： G02B3/08 , G02B5/1814
摘要： A planar lens capable of compensating for chromatic aberration and which is easy to manufacture and enables easy assembling of optical pickups and a method for fabricating the planar lens are provided. The planar lens includes a transparent substrate with a lens cavity in a surface of the transparent substrate, and a lens element formed in the lens cavity with a first refracting surface in contact with the bottom of the lens cavity and a second diffracting surface having a diffraction grating opposite to the first refracting surface.
摘要翻译： 提供能够补偿色像差并容易制造并且能够容易地组装光学拾取器的平面透镜和用于制造平面透镜的方法。 平面透镜包括在透明基板的表面中具有透镜腔的透明基板和形成在透镜腔中的透镜元件，其具有与透镜腔的底部接触的第一折射表面和具有衍射的第二衍射面 光栅与第一折射表面相对。
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公开(公告)号：US20060076697A1
公开(公告)日：2006-04-13
申请号：US11274246
申请日：2005-11-16
申请人： Myung-bok Lee , Jin-seung Sohn , Eun-hyoung Cho , Young-pil Park
发明人： Myung-bok Lee , Jin-seung Sohn , Eun-hyoung Cho , Young-pil Park
IPC分类号： G02B1/00
CPC分类号： G02B3/08 , G02B5/1814
摘要： A planar lens capable of compensating for chromatic aberration and which is easy to manufacture and enables easy assembling of optical pickups and a method for fabricating the planar lens are provided. The planar lens includes a transparent substrate with a lens cavity in a surface of the transparent substrate, and a lens element formed in the lens cavity with a first refracting surface in contact with the bottom of the lens cavity and a second diffracting surface having a diffraction grating opposite to the first refracting surface.
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公开(公告)号：US06937396B2
公开(公告)日：2005-08-30
申请号：US10647510
申请日：2003-08-26
申请人： Eun-hyoung Cho , Jin-seung Sohn , Myung-bok Lee , Young-pil Park
发明人： Eun-hyoung Cho , Jin-seung Sohn , Myung-bok Lee , Young-pil Park
CPC分类号： G02B3/08 , G02B5/1814 , G02B27/4238 , G11B7/1367 , G11B7/1374
摘要： A hybrid lens with a high numerical aperture is described. The hybrid lens comprises a refractive surface that refracts incident light and a diffractive surface that diffracts light exiting the lens, the diffracting surface designed by a sag satisfying the following Equation: s a g = f D + m λ - f D 2 + r 2 n - 1 , wherein fD is a distance from a center peak to a focal point of the hybrid lens, r is a height from a center axis to each peak of the hybrid lens, n is the refractive index of the hybrid lens, λ is the wavelength of incident light and m is an integer. The hybrid lens is small and lightweight and capable of removing chromatic aberration.
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4.发明授权公开(公告)号：US07266055B2
公开(公告)日：2007-09-04
申请号：US10849190
申请日：2004-05-20
申请人： Won-ik Cho , Byung-ryul Ryoo , Young-pil Park , No-cheol Park
发明人： Won-ik Cho , Byung-ryul Ryoo , Young-pil Park , No-cheol Park
IPC分类号： G11B7/00
CPC分类号： G11B7/0933 , G11B7/0932 , G11B7/0935
摘要： An optical pickup actuator and optical disc drive using the same. The optical pickup actuator includes a blade holding an objective lens and supported on a base by a plurality of suspension wires so that it is elastically movable, a magnetic element positioned on the base, and a coil positioned horizontally on the blade to generate electromagnetic force in a focusing direction and/or a tilting direction through interaction with the magnetic element. The coil is divided into a plurality of subcoils separated vertically from one another.
摘要翻译： 光拾取器致动器和使用其的光盘驱动器。 光学拾取器致动器包括：保持物镜的刀片，并且通过多个悬挂线支撑在基座上，使得其可弹性移动;定位在基座上的磁性元件;以及水平地定位在刀片上的线圈，以产生电磁力 通过与磁性元件相互作用的聚焦方向和/或倾斜方向。 线圈被分成彼此垂直分离的多个子线圈。
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