公开(公告)号：US20110075542A1

公开(公告)日：2011-03-31

申请号：US12893382

申请日：2010-09-29

申请人： Satoshi INOUE ,  Yuta YOSHIDA ,  Naoto HASHIMOTO ,  Suguru TAKISHIMA

发明人： Satoshi INOUE ,  Yuta YOSHIDA ,  Naoto HASHIMOTO ,  Suguru TAKISHIMA

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G02B13/16 ,  G11B7/1376

摘要： An optical information recording/reproducing optical system, comprising a light source; an optical element converting a laser beam into a substantially collimated beam; and an objective lens, wherein a wavelength λ (unit: nm) of the laser beam falls within a range of 400 115° C., each of optical surfaces is configured not to have an optical thin film which contains at least one of or elements of titanium, tantalum, hafnium, zirconium, niobium, molybdenum and chromium, each of optical surfaces of the optical element is provided with an antireflection film made of one of or a mixture of at least two of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride, and a following condition is satisfied. ∏ i = 1 n - 1  ( 1 - R ( BL )  i 100 ) - ∏ i = 1 n - 1  ( 1 - R ( UV )  i 100 ) > 0.05 .

摘要翻译： 一种光信息记录/再现光学系统，包括光源; 将激光束转换成基本上准直的光束的光学元件; 和物镜，其中激光束的波长λ（单位：nm）落在400 <λ<410的范围内，光学元件和物镜由相同的树脂材料或具有玻璃化转变的不同树脂材料制成 Tg> 115℃的温度下，每个光学表面被配置为不具有包含钛，钽，铪，锆，铌，钼和铬中的至少一种或元素的光学薄膜，每个光学表面 光学元件设置有由氧化硅，氧化铝，氟化铝和氟化镁中的至少两种中的一种或其混合物制成的抗反射膜，满足以下条件。 Πi = 1 n - 1（1 - R（BL）i 100） - Πi = 1 n - 1（1 - R（UV）100）> 0.05。

公开(公告)号：US20110075541A1

公开(公告)日：2011-03-31

申请号：US12893332

申请日：2010-09-29

申请人： Satoshi INOUE ,  Yuta YOSHIDA ,  Naoto HASHIMOTO ,  Suguru TAKISHIMA

发明人： Satoshi INOUE ,  Yuta YOSHIDA ,  Naoto HASHIMOTO ,  Suguru TAKISHIMA

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G02B13/16 ,  G11B7/1353 ,  G11B7/1376

摘要： An optical information recording/reproducing optical system where resin material has Tg>115° C., first, second and third films are on an optical disc side of an objective lens and surfaces of an optical element, respectively, a light source side of the objective lens has a fourth film having four or more layers not containing Ti, each of the first, second and third films includes a non-high refractive index layer made of one of silicon oxide, aluminum oxide, aluminum fluoride and magnesium fluoride or a mixture of at least two of them, each of the first, second and third films is not made of one of Ti, Ta, Hf, Zr, Nb, Mo and Cr, a layer of the fourth film closest to a base material is the non-high refractive index layer. The fourth film satisfies 350

摘要翻译： 一种光学信息记录/再现光学系统，其中树脂材料具有Tg> 115℃，第一，第二和第三薄膜位于物镜的光盘侧，光学元件的表面分别为 物镜具有不含Ti的四层以上的第四膜，第一膜，第二膜和第三膜中的每一层均包含由氧化硅，氧化铝，氟化铝和氟化镁之一构成的非高折射率层或混合物 其中至少两个，第一，第二和第三膜中的每一个不是由Ti，Ta，Hf，Zr，Nb，Mo和Cr中的一种制成，所以第四膜最靠近基材的层是非 高折射率层。 第四膜满足350 <λmax（2）<420和600 <λmin（2）<750，其反射率单调减小。

公开(公告)号：US20110103217A1

公开(公告)日：2011-05-05

申请号：US12893268

申请日：2010-09-29

申请人： Satoshi INOUE ,  Yuta YOSHIDA ,  Naoto HASHIMOTO ,  Suguru TAKISHIMA

发明人： Satoshi INOUE ,  Yuta YOSHIDA ,  Naoto HASHIMOTO ,  Suguru TAKISHIMA

IPC分类号： G11B7/135 ,  G02B1/11

CPC分类号： G11B7/1374

摘要： An objective lens for an optical information recording/reproducing optical system for an optical disc letting a laser beam impinge on a recording layer of the optical disc, and wherein a center wavelength λ (unit: nm) of the laser beam is in a range defined by a condition: 390≦λ≦420, a base material of the objective lens is made of resin, the resin has a glass transition temperature Tg and light transmissivity T (unit: %) per a path length of 3 mm at a wavelength of 406 nm defined by conditions: Tg≧115° C., 85≦T≦90, same antireflection films or different types of antireflection films are respectively formed on optical surfaces of the objective lens, and each of the antireflection films formed on the objective lens has a thickness of 100 nm or more in a vicinity of an optical axis of the objective lens.

摘要翻译： 一种用于光盘的光学信息记录/再现光学系统的物镜，其使激光束照射在光盘的记录层上，并且其中激光束的中心波长λ（单位：nm）在限定的范围内 通过条件：390＆nlE;λ＆nlE; 420，物镜的基材由树脂制成，树脂的玻璃化转变温度Tg和光透射率T（单位：％），每个路径长度为3mm，波长为 由条件限定的406nm：Tg≥115℃，85＆lt; NE; T＆lt; NE; 90，在物镜的光学表面上分别形成相同的防反射膜或不同类型的抗反射膜，并且形成在物镜上的每个防反射膜 在物镜的光轴附近具有100nm以上的厚度。

公开(公告)号：US20070147196A1

公开(公告)日：2007-06-28

申请号：US11616056

申请日：2006-12-26

申请人： Suguru TAKISHIMA

发明人： Suguru TAKISHIMA

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0935 ,  G11B7/1369

摘要： An optical information processing device, configured to perform operations of reading and writing information on an optical disk, includes a light source configured to emit a laser beam, an image forming unit configured to converge the laser beam emitted by the light source on the optical disk, a first actuating system configured to actuate the image forming unit so as to converge the laser beam in a desired position on the optical disk, an aberration correcting unit configured to correct aberration generated on a light path from the light source to the optical disk, a second actuating system configured to actuate the aberration correcting unit independently of the image forming unit, and a control system configured to control the second actuating system so as to keep a relative position of the aberration correcting unit with respect to the image forming unit constant.

摘要翻译： 一种光信息处理装置，被配置为执行在光盘上读取和写入信息的操作，包括配置为发射激光束的光源，被配置为将由光源发射的激光束会聚在光盘上的图像形成单元 ，第一致动系统，被配置为致动所述图像形成单元，以将所述激光束会聚在所述光盘上的期望位置;像差校正单元，被配置为校正从所述光源到所述光盘的光路上产生的像差， 第二致动系统，被配置为独立于图像形成单元致动像差校正单元;以及控制系统，被配置为控制第二致动系统，以便保持像差校正单元相对于图像形成单元的相对位置恒定。

公开(公告)号：US20080074976A1

公开(公告)日：2008-03-27

申请号：US11862340

申请日：2007-09-27

申请人： Hiroshi NISHIKAWA ,  Suguru TAKISHIMA ,  Ryosei HONMA ,  Hiroshi KANAZAWA

发明人： Hiroshi NISHIKAWA ,  Suguru TAKISHIMA ,  Ryosei HONMA ,  Hiroshi KANAZAWA

IPC分类号： G11B5/09

CPC分类号： G11B7/1374 ,  G11B7/13925

摘要： According to an aspect of the invention, there is provided an optical pick-up for an optical disc drive, which is provided with an objective lens configured to converge a laser beam emitted from a laser source on a recording surface of an optical disc, spherical aberration caused by the objective lens being compensated at a predetermined setting temperature of the objective lens, a heating unit configured to be driven to heat the objective lens, a spherical aberration detection unit which detects amount of spherical aberration caused by the objective lens, and a driving unit that drives the heating unit in accordance with the amount of the spherical aberration detected by the spherical aberration detection unit, the driving unit driving the heating unit when the spherical aberration detected by the spherical aberration detection unit is positive, the driving unit stopping driving the heating unit when the spherical aberration is zero or negative.

摘要翻译： 根据本发明的一个方面，提供了一种用于光盘驱动器的光学拾取器，其具有配置成将从激光源发射的激光束会聚在光盘的记录表面上的物镜，该物镜是球形的 在物镜的预定设定温度下补偿物镜造​​成的像差，配置为被驱动以加热物镜的加热单元，检测由物镜引起的球面像差量的球面像差检测单元，以及 驱动单元，其根据由球面像差检测单元检测到的球面像差的量来驱动加热单元，当由球面像差检测单元检测到的球面像差为正时驱动单元驱动加热单元，驱动单元停止驱动 当球面像差为零或负时，加热单元。

公开(公告)号：US20070291618A1

公开(公告)日：2007-12-20

申请号：US11763515

申请日：2007-06-15

申请人： Suguru TAKISHIMA ,  Hiroshi NISHIKAWA ,  Hiroshi KANAZAWA ,  Ryosei HONMA

发明人： Suguru TAKISHIMA ,  Hiroshi NISHIKAWA ,  Hiroshi KANAZAWA ,  Ryosei HONMA

IPC分类号： G11B7/00

CPC分类号： G11B7/123 ,  G11B7/08582

摘要： An optical disk drive for recording information on a recording surface of an optical disk and reading information recorded in the optical disk is provided. The optical disk drive includes a spindle to rotate the optical disk and a carriage movable in parallel with a tracking direction of the optical disk. The carriage includes a laser light source to emit laser light, a collimator lens to convert divergent light into parallel light and is arranged with an optical center thereof being in a farther and offset position with respect to an optical axis of the laser light, a reflecting mirror to receive and deflect the laser light transmitted through the collimator lens in a direction perpendicular to the recording surface of the optical disk, and an objective lens to converge the laser light deflected by the reflecting mirror on a position corresponding to the recording surface of the optical disk.

摘要翻译： 提供一种用于在光盘的记录表面上记录信息并读取记录在光盘中的信息的光盘驱动器。 光盘驱动器包括用于旋转光盘的主轴和可与光盘的跟踪方向并行移动的滑架。 滑架包括用于发射激光的激光源，将发散光转换为平行光的准直透镜，并且其光学中心相对于激光的光轴位于更远和偏移位置，反射 反射镜，以在垂直于光盘的记录表面的方向上接收和偏转透射准直透镜的激光;以及物镜，将由反射镜偏转的激光会聚在与该光盘的记录表面相对应的位置上 光盘。