公开(公告)号：US20090190453A1

公开(公告)日：2009-07-30

申请号：US12267871

申请日：2008-11-10

申请人： Jin-kyung LEE ,  An-sik JEONG ,  Jong-hyun SHIN ,  Kyung-geun LEE

发明人： Jin-kyung LEE ,  An-sik JEONG ,  Jong-hyun SHIN ,  Kyung-geun LEE

IPC分类号： G11B20/18

CPC分类号： G11B7/0956 ,  G11B7/1387 ,  G11B2007/13727

摘要： In a near-field optical recording/reproducing system and a method of controlling a tilt, the near-field optical recording/reproducing system includes: a light source; an objective lens to focus light emitted from the light source to transmit near-field light to an information storage medium; a PD (photodetector) to receive a portion of the light that is transmitted from the objective lens to the information storage medium and is reflected from the information storage medium, to detect a GES (gap error signal) used for controlling an air gap formed between the objective lens and the information storage medium; a signal processor/determiner to obtain an edge voltage using the GES detected by the PD and determine a tilt control point using the edge voltage; and an adjuster to control a relative tilt between the objective lens and the information storage medium in the tilt control position.

摘要翻译： 在近场光记录/再现系统和控制倾斜的方法中，近场光学记录/再现系统包括：光源; 用于聚焦从光源发射的光以将近场光发射到信息存储介质的物镜; PD（光电检测器），用于接收从物镜传输到信息存储介质并被从信息存储介质反射的光的一部分，以检测用于控制形成的气隙的GES（间隙误差信号） 物镜和信息存储介质; 信号处理器/确定器，用于使用由PD检测的GES获得边沿电压，并使用边缘电压确定倾斜控制点; 以及调节器，用于在倾斜控制位置中控制物镜和信息存储介质之间的相对倾斜。

公开(公告)号：US20100110863A1

公开(公告)日：2010-05-06

申请号：US12560482

申请日：2009-09-16

申请人： Jin-kyung LEE ,  No-cheol Park ,  Kyung-geun Lee ,  Yong-loong Yoon

发明人： Jin-kyung LEE ,  No-cheol Park ,  Kyung-geun Lee ,  Yong-loong Yoon

IPC分类号： G11B7/00 ,  G02B13/18

CPC分类号： G11B7/139 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/1387 ,  G11B2007/0006 ,  G11B2007/13727

摘要： A compatible near field optical recording/reproducing apparatus includes a solid immersion lens unit including a first lens, which has an aspherical surface in which light incident from the first light source is condensed, and a second lens, which realizes a high numerical aperture via a near field effect by light condensed by the first lens and has an aspherical surface. An effective beam size-controlling device controls an effective size of a light beam transmitted to the solid immersion lens unit such that either near field light or far field light is transmitted to an information storage medium by the solid immersion lens unit and a focal point adjusting optical system adjusts a focal position of light transmitted to the information storage medium according to the type of the information storage medium.

摘要翻译： 兼容的近场光记录/再现装置包括：固体浸没透镜单元，其包括第一透镜，该第一透镜具有其中从第一光源入射的光会聚的非球面;以及第二透镜，其经由 近场效应由第一透镜聚光并具有非球面。 有效的光束尺寸控制装置控制透射到固体浸没透镜单元的光束的有效尺寸，使得近场光或远场光通过固体浸没透镜单元传播到信息存储介质，并且焦点调节 光学系统根据信息存储介质的类型调整发送到信息存储介质的光的焦点位置。