公开(公告)号：US20050041561A1

公开(公告)日：2005-02-24

申请号：US10900250

申请日：2004-07-28

Applicant: Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi

IPC: G11B7/00 ,  G11B7/135

CPC classification number: G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: There is provided an objective lens used for a plurality of types of optical discs having a front surface and a rear surface, each of which includes an inner region and an outer region. The outer region has a surface shape which suppresses a coma caused when a beam used for a first optical disc is incident thereon obliquely with respect to an optical axis of the objective lens. The inner region is configured such that, at a boundary position between the inner region and the outer region, the coma caused when a beam used for a second optical disc is incident on the inner region obliquely at a first angle with respect to the optical axis is less than the coma caused when the beam used for the second optical disc is incident on the outer region obliquely at the first angle with respect to the optical axis. Further, an inclination θ2A of the inner region and an inclination θ2B of the outer region of the rear surface satisfy a condition: −2.5

Abstract translation: 提供了一种用于具有前表面和后表面的多种类型的光盘的物镜，每个光盘包括内部区域和外部区域。 外部区域具有抑制当用于第一光盘的光束相对于物镜的光轴倾斜入射时引起的彗差的表面形状。 内部区域被构造成使得在内部区域和外部区域之间的边界位置处，当用于第二光盘的光束相对于光轴以第一角度倾斜地入射到内部区域时引起的彗形像 小于当用于第二光盘的光束相对于光轴以第一角度倾斜地入射到外部区域时引起的昏迷。 此外，内部区域的倾斜度θ2A和后表面的外部区域的倾斜度θ2B满足条件：-2.5

公开(公告)号：US06777667B2

公开(公告)日：2004-08-17

申请号：US09993487

申请日：2001-11-27

Applicant: Daisuke Koreeda

Inventor： Daisuke Koreeda

IPC: G02B2608

CPC classification number: H04N1/053 ,  H04N1/113 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0098 ,  H04N2201/04762

Abstract: Disclosed is a scanning optical system that includes a laser source for emitting a laser beam, a scanning deflector that deflects the laser beam, an imaging optical system that converges the scanning laser beam onto an object surface, first and second mirrors that bend the optical path of the scanning laser beam. The first and second mirrors are movable to adjust the optical path length between the deflector and the object surface for changing a width of the scanning range on the object surface. Since the optical path length is adjusted by moving the first and second mirror, which changes the width of the scanning range, correcting the size error of the printed image. When the size error of the printed image is detected, an operator moves the first and second mirrors to correct it.

Abstract translation: 公开了一种扫描光学系统，其包括用于发射激光束的激光源，使激光束偏转的扫描偏转器，将扫描激光束会聚到物体表面上的成像光学系统，使光路弯曲的第一和第二反射镜 的扫描激光束。 第一和第二反射镜可移动以调节偏转器和物体表面之间的光程长度，以改变物体表面上扫描范围的宽度。 由于通过移动改变扫描范围的宽度的第一和第二反射镜来调整光程长度，校正打印图像的尺寸误差。 当检测到打印图像的尺寸误差时，操作者移动第一和第二反射镜以对其进行校正。

公开(公告)号：US06731419B2

公开(公告)日：2004-05-04

申请号：US10290161

申请日：2002-11-08

Applicant: Daisuke Koreeda

Inventor： Daisuke Koreeda

IPC: G02B2608

CPC classification number: G02B26/125 ,  G02B26/123

Abstract: There is provided a scanning optical system, which is provided with a deflector that deflects the plurality of beams, and an imaging optical system that converges the plurality of beams deflected by the deflector to form a plurality of beam spots on surfaces to be scanned, respectively. The imaging optical system has at least one lens whose position is changeable in a plane including an optical reference axis thereof and parallel with the main scanning direction. In this configuration, the imaging optical system satisfies a condition: 0.05

Abstract translation: 提供了一种扫描光学系统，其设置有偏转多个光束的偏转器，以及成像光学系统，其收敛由偏转器偏转的多个光束，以在待扫描的表面上分别形成多个光束点 。 成像光学系统具有至少一个透镜，其位置在包括其光学参考轴并且与主扫描方向平行的平面中是可变的。 在该结构中，成像光学系统满足条件：0.05

公开(公告)号：US06396627B1

公开(公告)日：2002-05-28

申请号：US09584943

申请日：2000-06-01

Applicant: Satoru Tachihara ,  Chinari Tanaka ,  Daisuke Koreeda ,  Tetsuya Nakamura ,  Nobutaka Minefuji ,  Takaomi Sekiya ,  Eiichi Ito

Inventor： Satoru Tachihara ,  Chinari Tanaka ,  Daisuke Koreeda ,  Tetsuya Nakamura ,  Nobutaka Minefuji ,  Takaomi Sekiya ,  Eiichi Ito

IPC: G02B2106

CPC classification number: G02B21/22

Abstract: The stereoscopic microscope includes a common close-up optical system that faces an object, a pair of zoom optical systems that form a pair of primary image, a pair of field stops, a pair of relay optical systems that relay the primary images to form a pair of secondary images, an inter-axis distance reducing element, an image taking device and an illuminating optical system. The object light rays incident on the close-up optical system form the primary images having predetermined parallax at the field stops through the zoom optical systems. The inter-axis distance reducing element reduces the inter-axis distance of the right and left light rays. The primary images are re-imaged by the relay optical systems as the secondary images on the adjacent regions on the single image taking surface of the image taking device, respectively.

Abstract translation: 立体显微镜包括面向物体的共同的特写光学系统，形成一对原始图像的一对变焦光学系统，一对场停止，一对中继光学系统，其中继主要图像以形成 一对二次图像，轴间距离减小元件，摄像装置和照明光学系统。 入射在特写光学系统上的物体光线通过变焦光学系统形成在场停止处具有预定视差的主要图像。 轴间距减小元件减小左右光线的轴间距离。 主要图像由继电光学系统重新成像为分别在摄像装置的单个图像拍摄表面上的相邻区域上的次要图像。

公开(公告)号：US08514686B2

公开(公告)日：2013-08-20

申请号：US13050146

申请日：2011-03-17

Applicant: Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/00

CPC classification number: G11B7/1275 ,  G02B5/1895 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An objective optical system for information recording/reproducing, at least one of optical surfaces of the objective optical system comprising a diffraction surface including a first region contributing to converging first, second and third beams and including a diffraction structure formed such that use diffraction orders for the first, second and third beams are 1st-orders and a condition 0.03

Abstract translation: 一种用于信息记录/再现的物镜光学系统，所述物镜光学系统的光学表面中的至少一个包括衍射表面，所述衍射表面包括有助于会聚第一，第二和第三光束的第一区域，并且包括衍射结构， 第一，第二和第三光束为1阶，满足条件0.03 <（λB11-λ1）/λ1<0.40; 第二区域有助于仅会聚第一和第二光束，并且包括形成为使得衍射级数为1级并且条件为-0.35 <（λB12-λB11）/λ1<0.35的衍射结构; 以及第三区域，仅有助于仅会聚第一光束，并且包括形成为使得第一光束的使用衍射级为奇数阶和条件的衍射结构：-0.23

公开(公告)号：US08279738B2

公开(公告)日：2012-10-02

申请号：US12330861

申请日：2008-12-09

Applicant: Satoshi Inoue ,  Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Satoshi Inoue ,  Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/00 ,  G11B7/135 ,  G02B23/24

CPC classification number: G11B7/13922 ,  G11B7/0908 ,  G11B7/1374 ,  G11B2007/0006

Abstract: There is provided an objective lens for information recording/reproducing for three types of optical discs, which includes a first area contributing to converging a third light beam onto a record surface of a third optical disc. The first area includes a phase shift structure having refractive surface zones concentrically formed about a predetermined axis. The phase shift structure includes first and second step groups. The first step group is configured such that an optical path length difference ΔOPD1 (nm) given by each step of the first step group to a first light beam satisfies a condition: 2N1+1.10

Abstract translation: 提供了一种用于三种类型的光盘的信息记录/再现的物镜，其包括有助于将第三光束会聚到第三光盘的记录表面上的第一区域。 第一区域包括具有围绕预定轴线同心地形成的折射表面区域的相移结构。 相移结构包括第一和第二步骤组。 第一步骤组被配置为使得第一步骤组的每个步骤给出的第一光束的光程长度差Dgr; OPD1（nm）满足条件：2N1 + 1.10 <|＆Dgr; OPD1 /λ1| <2N1 +1.40，其中N1是整数或零，并且第二步骤组被配置为使得由第二步骤组的每个步骤给予的第一光束的光程长度差Dgr; OPD2（nm）满足条件：2N2 -0.10 <|＆Dgr; OPD2 /λ1| <2N2 + 0.10，其中N2是整数。

公开(公告)号：US08189448B2

公开(公告)日：2012-05-29

申请号：US12949023

申请日：2010-11-18

Applicant: Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/00

CPC classification number: G11B7/13922 ,  G02B5/1895 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

Abstract: An objective optical system for an optical information recording/reproducing apparatus for recording/reproducing for first, second and third optical discs by selectively using three types of substantially collimated light beams including first, second and third light beams respectively having first, second and third wavelengths, wherein at least one of optical surfaces of the objective optical system comprises a diffraction surface having a diffraction structure, the diffraction surface includes a first region defined by first and second optical path difference functions, a second region defined by at least one type of optical path difference function, and a third region defined by at least one type of optical path difference function, the first region satisfies a condition: −0.15

Abstract translation: 一种用于光信息记录/再现装置的物镜光学系统，用于通过选择性地使用分别具有第一，第二和第三波长的第一，第二和第三光束的三种基本上准直的光束来记录/再现第一，第二和第三光盘 其中所述物镜光学系统的至少一个光学表面包括具有衍射结构的衍射表面，所述衍射表面包括由第一和第二光程差函数限定的第一区域，由至少一种类型的光学 路径差分函数和由至少一种类型的光程差函数定义的第三区域，第一区域满足条件：-0.15

公开(公告)号：US07990831B2

公开(公告)日：2011-08-02

申请号：US12146883

申请日：2008-06-26

Applicant: Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/00

CPC classification number: G11B7/13925 ,  G11B7/1367 ,  G11B7/1369 ,  G11B7/1374 ,  G11B7/13927 ,  G11B2007/0006

Abstract: An optical pickup device includes a first light source emitting first light with a first wavelength, a second light source emitting second light with a second wavelength, a third light source emitting third light with a third wavelength, an objective lens having a step structure, the objective lens being disposed to satisfy predetermined conditions, at least one first coupling lens making the first light and the second light incident onto the objective lens as converged light, a second coupling lens making the third light incident onto the objective lens as diverging light, and a liquid crystal aberration correcting element.

Abstract translation: 一种光学拾取装置包括：发射具有第一波长的第一光的第一光源，发射具有第二波长的第二光的第二光源;发射具有第三波长的第三光的第三光源;具有阶梯结构的物镜; 将物镜设置为满足预定条件，使作为会聚光入射到物镜上的第一光和第二光的至少一个第一耦合透镜，使作为发散光入射到物镜上的第三光的第二耦合透镜，以及 液晶像差校正元件。

公开(公告)号：US07843792B2

公开(公告)日：2010-11-30

申请号：US11765498

申请日：2007-06-20

Applicant: Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/135

CPC classification number: G11B7/1374 ,  G11B7/1353 ,  G11B2007/0006

Abstract: There is provided an objective lens including a first optical member and a second optical member which are made of materials different from each other and are cemented together at a cementing surface. The cementing surface includes a first phase shift structure having a plurality of refractive surface zones concentrically formed about an optical axis of the objective lens. The first phase shift structure satisfies conditions (1) and (2): 0.85

Abstract translation: 提供了一种包括第一光学构件和第二光学构件的物镜，其由彼此不同的材料制成并且在固结表面处粘合在一起。 固定表面包括具有围绕物镜的光轴同心地形成的多个折射表面区的第一相移结构。 第一相移结构满足条件（1）和（2）：0.85 <Φ2/Φ1<1.15（1）0.10 <|（Φ3-Φ2）/Φ1| <0.50（2）其中Φ1= m（λ1）× λ1/（n2（λ1）-n1（λ1））），Φ2= m（λ2）×（λ2/（n2（λ2）-n1（λ2））），Φ3= m（λ3）×（λ3/（n2 （λ3）-n1（λ3））），m（λ1），m（λ2）和m（λ3）分别为第一至第三光束的衍射效率最大化的衍射级，n1（λ1） n1（λ2），n1（λ3）分别为第一光学部件的折射率，n2（λ1），n2（λ2），n2（λ3）分别为第二光学部件的折射率。

公开(公告)号：US07280276B2

公开(公告)日：2007-10-09

申请号：US10937290

申请日：2004-09-10

Applicant: Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi ,  Naohito Sasaki

Inventor： Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi ,  Naohito Sasaki

IPC: G11B7/00 ,  G02B1/10

CPC classification number: G11B7/1374 ,  G02B1/11 ,  G02B13/18

Abstract: An objective lens on which a beam having parallel light fluxes is incident includes a single element lens and a reflection suppressing coating formed on at least one surface of the single element lens. The reflection suppressing coating is formed such that the reflectivity across a radius of the objective lens exhibits a local maximal value, and the reflection suppressing coating is formed to achieve the following condition: 0.6

Abstract translation: 入射了具有平行光束的光束的物镜包括形成在单一元件透镜的至少一个表面上的单个元件透镜和反射抑制涂层。 形成反射抑制涂层，使得物镜半径的反射率呈现局部最大值，形成反射抑制涂层以达到以下条件：＆lt;线内公式描述=“在线公式 “end =”lead“？> 0.6 其中h 1表示光轴与 反射率呈现局部最大值的位置，hmax表示物镜的有效直径的光轴与最外侧位置之间的距离。