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    Optical device, optical system, method of production of same, and mold for production of same
    2.
    发明授权
    Optical device, optical system, method of production of same, and mold for production of same 失效
    光学装置，光学系统，其制造方法及其制造用模具

    公开(公告)号：US07256950B2

    公开(公告)日：2007-08-14

    申请号：US11223947

    申请日：2005-09-13

    Applicant: Masahiro Yamada ,  Akira Kouchiyama ,  Tetsu Watanabe

    Inventor： Masahiro Yamada ,  Akira Kouchiyama ,  Tetsu Watanabe

    IPC: G02B9/00 ,  B29D11/00

    CPC classification number: G02B6/4214 ,  G02B3/0087 ,  G02B6/262 ,  G02B6/30 ,  G02B6/4203 ,  G02B6/4204 ,  G02B6/4246

    Abstract: A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optical material is filled in this concavity. A second optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from the first optical material, and the base comprises first and second faces facing each other, a first concavity is formed in the first face and a second concavity is formed in the second face, and the second optical material is filled in the first and second concavities.

    Abstract translation: 根据本发明的第一光学装置包括由第一光学材料制成的基底和具有与第一光学材料的折射率不同的折射率的第二光学材料，并且基底具有凹陷，并且第二光学材料被填充 在这个凹处。 根据本发明的第二光学装置包括由第一光学材料制成的基底和具有不同于第一光学材料的折射率的第二光学材料，并且基底包括彼此相对的第一和第二面，第一凹部为 形成在第一面上，在第二面上形成第二凹部，第二光学材料填充在第一和第二凹部中。

    Optical device, optical system, method of production of same, and mold for production of same
    3.
    发明授权
    Optical device, optical system, method of production of same, and mold for production of same 失效
    光学装置，光学系统，其制造方法及其制造用模具

    公开(公告)号：US06825995B2

    公开(公告)日：2004-11-30

    申请号：US09842021

    申请日：2001-04-26

    Applicant: Masahiro Yamada ,  Akira Kouchiyama ,  Tetsu Watanabe

    Inventor： Masahiro Yamada ,  Akira Kouchiyama ,  Tetsu Watanabe

    IPC: G02B900

    CPC classification number: G02B6/4214 ,  G02B3/0087 ,  G02B6/262 ,  G02B6/30 ,  G02B6/4203 ,  G02B6/4204 ,  G02B6/4246

    Abstract: A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optical material is filled in this concavity. A second optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from the first optical material, and the base comprises first and second faces facing each other, a first concavity is formed in the first face and a second concavity is formed in the second face, and the second optical material is filled in the first and second concavities.

    Abstract translation: 根据本发明的第一光学装置包括由第一光学材料制成的基底和具有与第一光学材料的折射率不同的折射率的第二光学材料，并且基底具有凹陷，并且第二光学材料被填充 在这个凹处。 根据本发明的第二光学装置包括由第一光学材料制成的基底和具有不同于第一光学材料的折射率的第二光学材料，并且基底包括彼此相对的第一和第二面，第一凹部为 形成在第一面上，在第二面上形成第二凹部，第二光学材料填充在第一和第二凹部中。

    Optical device, optical system, method of production of same, and mold for production of same
    6.
    发明授权
    Optical device, optical system, method of production of same, and mold for production of same 失效
    光学装置，光学系统，其制造方法及其制造用模具

    公开(公告)号：US06972912B2

    公开(公告)日：2005-12-06

    申请号：US10758182

    申请日：2004-01-16

    Applicant: Masahiro Yamada ,  Akira Kouchiyama ,  Tetsu Watanabe

    Inventor： Masahiro Yamada ,  Akira Kouchiyama ,  Tetsu Watanabe

    IPC: G01Q60/22 ,  G02B3/00 ,  G02B9/00

    CPC classification number: G02B6/4214 ,  G02B3/0087 ,  G02B6/262 ,  G02B6/30 ,  G02B6/4203 ,  G02B6/4204 ,  G02B6/4246

    Abstract: A first optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from that of the first optical material, and the base has a concavity, and the second optical material is filled in this concavity. A second optical device according to the present invention comprises a base made of a first optical material and a second optical material having a refractive index different from the first optical material, and the base comprises first and second faces facing each other, a first concavity is formed in the first face and a second concavity is formed in the second face, and the second optical material is filled in the first and second concavities.

    Abstract translation: 根据本发明的第一光学装置包括由第一光学材料制成的基底和具有与第一光学材料的折射率不同的折射率的第二光学材料，并且基底具有凹陷，并且第二光学材料被填充 在这个凹处。 根据本发明的第二光学装置包括由第一光学材料制成的基座和具有与第一光学材料不同的折射率的第二光学材料，并且基座包括彼此相对的第一和第二面，第一凹部为 形成在第一面上，在第二面上形成第二凹部，第二光学材料填充在第一和第二凹部中。

    Optical element and manufacturing method for same
    8.
    发明授权
    Optical element and manufacturing method for same 失效
    光学元件及其制造方法相同

    公开(公告)号：US06898027B2

    公开(公告)日：2005-05-24

    申请号：US10470760

    申请日：2002-12-04

    Applicant: Masahiro Yamada ,  Takahiro Miura ,  Takakiyo Kanazawa ,  Tetsu Watanabe ,  Sunao Aoki

    Inventor： Masahiro Yamada ,  Takahiro Miura ,  Takakiyo Kanazawa ,  Tetsu Watanabe ,  Sunao Aoki

    IPC: G02B5/00 ,  G02B3/00 ,  G02B13/00 ,  G11B7/135 ,  G02B9/00 ,  B29D11/00 ,  G02B9/08

    CPC classification number: G11B7/1374 ,  G11B7/1378 ,  G11B7/1387 ,  G11B7/139

    Abstract: An optical element and manufacturing method of the present invention prevent the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element is configured from at least one substrate having a plurality of lens substrates that have embedded lenses made of a material with a higher refractive index than the at least one substrate. A shielding means limits the optical path so that incident light propagates only within a prescribed optical path formed on a light incidence-side or emission-side surface of one of the lens substrates. In addition, the shielding means is formed from an absorptive or reflective film placed in a region outside the prescribed optical path or through machining the region outside the prescribed optical path.

    Abstract translation: 本发明的光学元件和制造方法防止光入射在光学元件的不必要部分上，从而消除杂散光和噪声。 所述光学元件由具有多个透镜基板的至少一个基板构成，所述多个透镜基板具有由比所述至少一个基板更高的折射率的材料制成的嵌入式透镜。 屏蔽装置限制光路，使得入射光仅在形成在一个透镜基板的光入射侧或发射侧表面上的规定光路内传播。 此外，屏蔽装置由放置在规定光路外部的区域的吸收或反射膜形成，或者通过加工规定光路外部的区域形成。

    Optical pickup
    9.
    发明授权
    Optical pickup 失效

    公开(公告)号：US06896419B2

    公开(公告)日：2005-05-24

    申请号：US10471806

    申请日：2003-01-17

    Applicant: Masahiro Yamada ,  Tetsu Watanabe

    Inventor： Masahiro Yamada ,  Tetsu Watanabe

    IPC: G02B6/024 ,  G02B6/26 ,  G02B6/27 ,  G02B6/36 ,  G02B6/42 ,  H01L31/12

    CPC classification number: G11B7/1384 ,  G02B6/262 ,  G02B6/4203 ,  G02B6/4206 ,  G02B6/4208 ,  G02B6/4218

    Abstract: An optical pickup using an optical fiber module which includes optical fibers is provided, which can be small-sized and utilize a light beam from a light source at high efficiency. The optical pickup includes: an optical fiber module 20, in which an optical fiber 10 consists of: a first optical fiber 11 which is a field-distribution converting fiber and a second optical fiber 12 whose core has birefringence, both the optical fibers 11 and 12 are connected to each other at one end thereof, and the laser light beam L emitted from the semiconductor laser 1 is made to enter the other end of the first optical fiber 11; an optical head having at least an objective lens; an optical detector; wherein the optical fiber 10 is used as optical wiring to lead the laser light beam L emitted from the semiconductor laser 1 into the optical head.

    Optical pickup device with shielding to limit incident or emitted light
    10.
    发明授权
    Optical pickup device with shielding to limit incident or emitted light 失效
    具有屏蔽以限制入射或发射光的光学拾取装置

    公开(公告)号：US07064906B2

    公开(公告)日：2006-06-20

    申请号：US11072504

    申请日：2005-03-07

    Applicant: Masahiro Yamada ,  Takahiro Miura ,  Takakiyo Kanazawa ,  Tetsu Watanabe ,  Sunao Aoki

    Inventor： Masahiro Yamada ,  Takahiro Miura ,  Takakiyo Kanazawa ,  Tetsu Watanabe ,  Sunao Aoki

    IPC: G02B9/00 ,  G02B9/08 ,  B29D11/00

    CPC classification number: G11B7/1374 ,  G11B7/1378 ,  G11B7/1387 ,  G11B7/139

    Abstract: An optical pickup device and optical disc apparatus of the present invention include an optical element that prevents the incidence of light on unnecessary portions of the optical element so that stray light and noise are eliminated. The optical element include at least one substrate having a plurality of lens substrates that have embedded lenses made of a material with a higher refractive index than the at least one substrate. A shielding means limits the optical path so that incident light propagates only within a prescribed optical path formed on a light incidence-side or emission-side surface of one of the lens substrates. In addition, the shielding means is formed from an absorptive or reflective film placed in a region outside the prescribed optical path or through machining the region outside the prescribed optical path.

    Abstract translation: 本发明的光学拾取装置和光盘装置包括防止光学元件的不必要部分发生光的光学元件，从而消除杂散光和噪声。 光学元件包括具有多个透镜基板的至少一个基板，该多个透镜基板具有由比至少一个基板更高的折射率的材料制成的嵌入式透镜。 屏蔽装置限制光路，使得入射光仅在形成在一个透镜基板的光入射侧或发射侧表面上的规定光路内传播。 此外，屏蔽装置由放置在规定光路外部的区域的吸收或反射膜形成，或者通过加工规定光路外部的区域形成。

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