公开(公告)号：US07161744B2

公开(公告)日：2007-01-09

申请号：US11097159

申请日：2005-04-04

申请人： Tatsuo Ohta ,  Takashi Nozaki

发明人： Tatsuo Ohta ,  Takashi Nozaki

IPC分类号： G02B13/24 ,  G02B1/10 ,  G02B13/14

CPC分类号： G11B7/13922 ,  G11B7/1374 ,  G11B7/139 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed facing the optical information recording medium, the objective lens comprising: a lens body containing a polymer resin having an alicyclic structure; a first film having a refractive index of less than 1.7 for light having a wavelength of 405 nm; a second film having a refractive index of 1.7 or more for the light having the wavelength of 405 nm; and a third film having a refractive index of 1.55 or less for the light having the wavelength of 405 nm, wherein: the first film, the second film and the third film are provided on the lens body; the first film is provided between the lens body and the second film; the second film is provided between the first film and the third film; and a thickness of the first film is in a range of 50 to 15000 nm.

摘要翻译： 一种物镜，用于在将物镜放置在面向光信息记录介质的同时，将特定波长在350至450nm范围内的单色光束会聚在光学信息记录介质上，该物镜包括：透镜体， 具有脂环结构的聚合物树脂; 对波长405nm的光具有折射率小于1.7的第一膜; 对于波长为405nm的光，其折射率为1.7以上的第二膜; 以及对于波长为405nm的光，折射率为1.55以下的第三膜，其中：所述第一膜，所述第二膜和所述第三膜设置在所述透镜体上; 第一膜设置在透镜体和第二膜之间; 第二膜设置在第一膜和第三膜之间; 第一膜的厚度为50〜15000nm的范围。

公开(公告)号：US07715302B2

公开(公告)日：2010-05-11

申请号：US11055122

申请日：2005-02-11

申请人： Tatsuo Ohta ,  Takashi Nozaki ,  Yayoi Eguro ,  Takeshi Kojima

发明人： Tatsuo Ohta ,  Takashi Nozaki ,  Yayoi Eguro ,  Takeshi Kojima

IPC分类号： G11B7/00

CPC分类号： G11B7/22 ,  G02B1/115 ,  G11B7/1365 ,  Y10T428/2947

摘要： An optical element for use in an optical pickup apparatus includes a substrate made of resin; an antireflection layer coating the substrate and having a low refractive index layer and a high refractive index layer, wherein the resin includes a polymer with an alicyclic structure, the low refractive index layer is formed of a material selected from the group consisting of silicon oxide; aluminum fluoride; yttrium fluoride; magnesium fluoride; a mixture of silicon oxide and aluminum oxide; and a mixture thereof, the high refractive index layer is formed of a material selected from the group consisting of scandium oxide; niobium oxide; lanthanum oxide; praseodymium titanate; lanthanum titanate; lanthanum aluminate; yttrium oxide; hafnium oxide; zirconium oxide; tantalum oxide; a mixture of tantalum oxide and titanium; silicon nitride; and a mixture thereof.

摘要翻译： 用于光学拾取装置的光学元件包括由树脂制成的基板; 涂覆所述基板并具有低折射率层和高折射率层的抗反射层，其中所述树脂包括具有脂环结构的聚合物，所述低折射率层由选自氧化硅的材料形成; 氟化铝; 氟化钇 氟化镁; 氧化硅和氧化铝的混合物; 及其混合物，高折射率层由选自氧化钪的材料形成; 氧化铌 氧化镧 钛酸镨 钛酸镧 铝酸镧; 氧化钇 氧化铪 氧化锆; 氧化钽 氧化钽和钛的混合物; 氮化硅; 及其混合物。

公开(公告)号：US20050201422A1

公开(公告)日：2005-09-15

申请号：US11055122

申请日：2005-02-11

申请人： Tatsuo Ohta ,  Takashi Nozaki ,  Yayoi Eguro ,  Takeshi Kojima

发明人： Tatsuo Ohta ,  Takashi Nozaki ,  Yayoi Eguro ,  Takeshi Kojima

IPC分类号： G02B1/00 ,  G02B1/11 ,  H01S3/30

CPC分类号： G11B7/22 ,  G02B1/115 ,  G11B7/1365 ,  Y10T428/2947

摘要： An optical element for use in an optical pickup apparatus includes a substrate made of resin; an antireflection layer coating the substrate and having a low refractive index layer and a high refractive index layer, wherein the resin includes a polymer with an alicyclic structure, the low refractive index layer is formed of a material selected from the group consisting of silicon oxide; aluminum fluoride; yttrium fluoride; magnesium fluoride; a mixture of silicon oxide and aluminum oxide; and a mixture thereof, the high refractive index layer is formed of a material selected from the group consisting of scandium oxide; niobium oxide; lanthanum oxide; praseodymium titanate; lanthanum titanate; lanthanum aluminate; yttrium oxide; hafnium oxide; zirconium oxide; tantalum oxide; a mixture of tantalum oxide and titanium; silicon nitride; and a mixture thereof.

摘要翻译： 用于光学拾取装置的光学元件包括由树脂制成的基板; 涂覆所述基板并具有低折射率层和高折射率层的抗反射层，其中所述树脂包括具有脂环结构的聚合物，所述低折射率层由选自氧化硅的材料形成; 氟化铝; 氟化钇 氟化镁; 氧化硅和氧化铝的混合物; 及其混合物，高折射率层由选自氧化钪的材料形成; 氧化铌 氧化镧 钛酸镨 钛酸镧 铝酸镧; 氧化钇 氧化铪 氧化锆; 氧化钽 氧化钽和钛的混合物; 氮化硅; 及其混合物。

公开(公告)号：US07554736B2

公开(公告)日：2009-06-30

申请号：US11092808

申请日：2005-03-30

申请人： Tatsuo Ohta ,  Takashi Nozaki

发明人： Tatsuo Ohta ,  Takashi Nozaki

IPC分类号： G02B1/10

CPC分类号： G11B7/1374 ,  G11B7/1353

摘要： An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed facing the optical information recording medium, the objective lens containing a lens body made of a polymer resin having an alicyclic structure; and an antireflection film including one or more layers provided on a surface of the lens body facing to the optical information recording medium, wherein a refractive index of the antireflection film for a light flux having a wavelength of 405 nm is less than 1.7.

摘要翻译： 一种物镜，用于在将物镜放置在面向光信息记录介质的同时在350至450nm的范围内会聚具有特定波长的单色光束，该物镜包含由 具有脂环结构的聚合物树脂; 以及防反射膜，其具有设置在与所述光学信息记录介质相对的所述透镜体的表面上的一层以上的层，其中，所述波长为405nm的光束的防反射膜的折射率小于1.7。

公开(公告)号：US06771583B2

公开(公告)日：2004-08-03

申请号：US09764309

申请日：2001-01-19

申请人： Tatsuo Ohta ,  Takashi Nozaki

发明人： Tatsuo Ohta ,  Takashi Nozaki

IPC分类号： G11B700

CPC分类号： G11B7/1374 ,  G11B7/22

摘要： In an optical lens used for a passing light having the maximum intensity on a wavelength (&lgr;T) of 780±10 nm, an optical is made such that a reflection preventing coating is provided on both or at least one of a light-incident surface (S1) and a light-outgoing surface (S2) and the following conditional formula is satisfied: R2(&lgr;R)>R1(&lgr;R), where R1(&lgr;R) and R2(&lgr;R) are a reflectance of said respective surfaces for light having a wavelength (&lgr;R) falling within a range from 500 to 700 nm.

摘要翻译： 在用于具有在780±10nm的波长（λT）上的最大强度的通过光的光学透镜中，制造光学以使得防反射涂层被设置在光入射表面的两个或至少一个 S1）和光出射面（S2），满足以下条件式：R2（λR）> R1（λR），其中R1（λR）和R2（λR）是具有 波长（λR）落在500至700nm的范围内。

公开(公告)号：US20050225879A1

公开(公告)日：2005-10-13

申请号：US11097159

申请日：2005-04-04

申请人： Tatsuo Ohta ,  Takashi Nozaki

发明人： Tatsuo Ohta ,  Takashi Nozaki

IPC分类号： G02B13/00 ,  G02B1/04 ,  G02B1/10 ,  G02B1/11 ,  G02B3/00 ,  G02B13/18 ,  G11B7/00 ,  G11B7/135

CPC分类号： G11B7/13922 ,  G11B7/1374 ,  G11B7/139 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed facing the optical information recording medium, the objective lens comprising: a lens body containing a polymer resin having an alicyclic structure; a first film having a refractive index of less than 1.7 for light having a wavelength of 405 nm; a second film having a refractive index of 1.7 or more for the light having the wavelength of 405 nm; and a third film having a refractive index of 1.55 or less for the light having the wavelength of 405 nm, wherein: the first film, the second film and the third film are provided on the lens body; the first film is provided between the lens body and the second film; the second film is provided between the first film and the third film; and a thickness of the first film is in a range of 50 to 15000 nm.

摘要翻译： 一种物镜，用于在将物镜放置在面向光信息记录介质的同时，将特定波长在350至450nm范围内的单色光束会聚在光学信息记录介质上，该物镜包括：透镜体， 具有脂环结构的聚合物树脂; 对波长405nm的光具有折射率小于1.7的第一膜; 对于波长为405nm的光，其折射率为1.7以上的第二膜; 以及对于波长为405nm的光，折射率为1.55以下的第三膜，其中：所述第一膜，所述第二膜和所述第三膜设置在所述透镜体上; 第一膜设置在透镜体和第二膜之间; 第二膜设置在第一膜和第三膜之间; 第一膜的厚度为50〜15000nm的范围。

公开(公告)号：US20050219683A1

公开(公告)日：2005-10-06

申请号：US11092808

申请日：2005-03-30

申请人： Tatsuo Ohta ,  Takashi Nozaki

发明人： Tatsuo Ohta ,  Takashi Nozaki

IPC分类号： G02B1/00 ,  G02B1/11 ,  G02B5/08 ,  G02B5/20 ,  G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/1353

摘要： An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed facing the optical information recording medium, the objective lens containing a lens body made of a polymer resin having an alicyclic structure; and an antireflection film including one or more layers provided on a surface of the lens body facing to the optical information recording medium, wherein a refractive index of the antireflection film for a light flux having a wavelength of 405 nm is less than 1.7.

摘要翻译： 一种物镜，用于在将物镜放置在面向光信息记录介质的同时在350至450nm的范围内会聚具有特定波长的单色光束，该物镜包含由 具有脂环结构的聚合物树脂; 以及防反射膜，其具有设置在与所述光学信息记录介质相对的所述透镜体的表面上的一层以上的层，其中，所述波长为405nm的光束的防反射膜的折射率小于1.7。

公开(公告)号：US06903512B2

公开(公告)日：2005-06-07

申请号：US10207458

申请日：2002-07-29

申请人： Tatsuo Ohta ,  Satoshi Nakano ,  Yumi Muramatsu

发明人： Tatsuo Ohta ,  Satoshi Nakano ,  Yumi Muramatsu

IPC分类号： G02B5/00 ,  C03C17/34 ,  C23C16/40 ,  C23C16/54 ,  G09G3/10

CPC分类号： C23C16/402 ,  C03C17/3417 ,  C03C2217/212 ,  C03C2217/213 ,  C03C2218/153 ,  C23C16/403 ,  C23C16/405 ,  C23C16/545

摘要： A method of producing a half mirror film on a substrate having a light transmissive property, comprising steps of: electrically discharging between electrodes facing each other under an atmospheric pressure or an approximate atmospheric pressure so as to make an reactive gas on a plasma state; and exposing a substrate to the reactive gas on the plasma state so as to form a half mirror film on the substrate.

摘要翻译： 一种在具有透光性的基板上制造半透膜的方法，包括以下步骤：在大气压或近似大气压下彼此面对的电极之间电放电，使反应气体处于等离子体状态; 以及在等离子体状态下将衬底暴露于反应性气体，以在衬底上形成半透膜。

公开(公告)号：US20050109616A1

公开(公告)日：2005-05-26

申请号：US10971112

申请日：2004-10-25

申请人： Tatsuo Ohta ,  Satoshi Nakano ,  Setsuo Tokuhiro

发明人： Tatsuo Ohta ,  Satoshi Nakano ,  Setsuo Tokuhiro

IPC分类号： C23C14/34 ,  C23C14/35 ,  C23C14/00

CPC分类号： C23C14/352

摘要： A sputtering apparatus for applying a thin film coating to a substrate containing, in a vacuum chamber, at least two cylindrical targets and at least two magnets each juxtaposed to one of the targets so as to generate a magnetic field in a vicinity of an outer surface of the target, wherein, the following relationship is satisfied d1≦3d2, provided that d1 is a distance between the outer surfaces of the two targets and d2 is any one of distances between the outer surfaces of the targets and the substrate.

摘要翻译： 一种用于将薄膜涂层施加到在真空室中包含至少两个圆柱形靶和至少两个磁体的溅射装置，每个磁体与所述靶中的一个并置，以便在外表面附近产生磁场 其中，满足以下关系：d1 <= 3d2，条件是d1是两个目标的外表面之间的距离，d2是目标和基板的外表面之间的距离中的任何一个。

公开(公告)号：US6104534A

公开(公告)日：2000-08-15

申请号：US44802

申请日：1998-03-20

申请人： Tatsuo Ohta ,  Shingo Nakamura ,  Satoshi Nakano

发明人： Tatsuo Ohta ,  Shingo Nakamura ,  Satoshi Nakano

IPC分类号： B32B15/08 ,  G02B1/10 ,  G02B1/11 ,  G02B1/116 ,  G02B1/14 ,  G09F9/00 ,  H04N5/72 ,  H05K9/00 ,  G02B5/28

CPC分类号： G02B1/116

摘要： In an optical member having a coating for reducing a ray reflecting on the coating and for reducing an electromagnetic wave incident on the coating, the optical member includes: a transparent substrate; and the coating including, and formed on the transparent substrate in the order named from the transparent substrate, a first light transmitting thin layer having a high refractive index, a first light transmitting thin layer having a low refractive index, a second light transmitting thin layer having a high refractive index, a second light transmitting thin layer having a low refractive index. At least one of the first light transmitting thin layer having the high refractive index and the second light transmitting thin layer having the high refractive index is a transparent conductive layer having a sheet resistivity of 100 .OMEGA./.quadrature. or less.

摘要翻译： 在具有用于减少在涂层上反射的光线并用于减少入射在涂层上的电磁波的涂层的光学部件中，所述光学部件包括：透明基板; 以及从所述透明基板起依次形成在所述透明基板上的所述涂层具有高折射率的第一透光薄膜，具有低折射率的第一透光薄膜，第二透光薄层 具有高折射率，具有低折射率的第二透光薄层。 具有高折射率的第一透光薄层和具有高折射率的第二透光薄层中的至少一个是具有100欧姆/平方厘米的薄膜电阻率的透明导电层。