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    MAGNETIC RECORDING MEDIUM SUBSTRATE AND MANUFACTURING METHOD THEREOF, AND MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF
    31.
    发明专利
    MAGNETIC RECORDING MEDIUM SUBSTRATE AND MANUFACTURING METHOD THEREOF, AND MAGNETIC RECORDING MEDIUM AND MANUFACTURING METHOD THEREOF 未知

    公开(公告)号：SG169402A1

    公开(公告)日：2011-03-30

    申请号：SG2011009024

    申请日：2011-02-08

    Applicant: KONICA MINOLTA OPTO INC

    Inventor： UEDA HIROAKI ,  MORIKAWA MASAHIRO ,  KAWAI HIDEKI

    Abstract: Provided is a magnetic recording medium substrate suitable for preparation of a DT medium and a patterned medium, and the magnetic recording medium substrate is possible to be of easy preparation of the DT medium and the patterned medium with no complicated processes. Disclosed is a magnetic recording medium substrate comprising a circular plate-shaped substrate made of a nonmagnetic base material, wherein a predetermined region of a surface of the substrate to form a magnetic film on the surface is more roughened than another region of the surface. When forming a magnetic film on this substrate, the magnetic film is formed in the region of the substrate surface, which is more roughened than the other region, to easily prepare the DT medium and the patterned medium.

    34.
    发明专利
    未知

    公开(公告)号：AT456071T

    公开(公告)日：2010-02-15

    申请号：AT08250467

    申请日：2008-02-07

    Applicant: KONICA MINOLTA OPTO INC

    Inventor： NAGAI FUMIO ,  MORI NOBUYOSHI

    IPC: G02B6/42

    Abstract: The present invention relates to an optical coupling lens and light source module. An optical coupling lens is provided for converging a light flux emitted from a light source to an entrance aperture. The optical coupling lens satisfies a predetermined condition according to a third-order astigmatism coefficient of the optical coupling lens. A light source module includes: a light source; an optical waveguide; and an optical unit including one or more of an optical coupling lens for converging a light flux emitted from the light source onto the optical waveguide. At least one optical coupling lens satisfies predetermined condition according to a third-order astigmatism coefficient of the optical coupling lens.

    35.
    发明专利
    未知

    公开(公告)号：DE60233025D1

    公开(公告)日：2009-09-03

    申请号：DE60233025

    申请日：2002-10-08

    Applicant: KONICA MINOLTA OPTO INC

    Inventor： IKENAKA KIYONO ,  OTA KOHEI ,  ATARASHI YUICHI

    IPC: G02B13/00 ,  G11B7/135 ,  G02B3/08 ,  G11B7/00 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/1392

    Abstract: An optical system (1,2) has an optical functional surface including a common region (A) used for conducting information recording and/or reproducing for both of a first optical information recording medium and a second optical information recording medium. The common region (A) comprises a refractive surface (A,1) of an imaginary basic aspherical surface and an optical path difference providing structure (A,2) in which plural ring-shapes zones are separated around the center of an optical axis and neighboring ring-shaped zones are displaced to each other in a direction of an optical axis so as to cause an optical path difference obtained by multiplying a predetermined wavelength lambda s ( lambda 1

    37.
    发明专利
    未知

    公开(公告)号：DE60324739D1

    公开(公告)日：2009-01-02

    申请号：DE60324739

    申请日：2003-07-07

    Applicant: KONICA MINOLTA OPTO INC

    Inventor： YAMAGUCHI SUSUMU

    IPC: G02B9/34 ,  G02B13/18 ,  G02B13/00 ,  G02B13/02 ,  G02B13/16

    Abstract: An image pickup lens has four lenses arranged in an order of a first lens, a second lens, a third lens and a fourth lens from an object side. The first lens has positive refractive power and has a convex surface facing toward an object side, the second lens has the positive refractive power, the third lens has negative refractive power and has a concave surface facing toward the object side to be formed in a meniscus shape, and the fourth lens has the positive or negative refractive power and has a convex surface facing toward the object side to be formed in the meniscus shape. An image pickup unit (50) comprising a solid state pickup element (51), a substrate (52) for holding the solid state image pickup element, a casing (53) and the image pickup lens (L1-L4) has a length of not more than 15 mm.

    38.
    发明专利
    未知

    公开(公告)号：DE602005003905T2

    公开(公告)日：2008-12-11

    申请号：DE602005003905

    申请日：2005-10-26

    Applicant: KONICA MINOLTA OPTO INC

    Inventor： SATO MASAE ,  SANO EIGO

    IPC: G02B13/00 ,  G02B9/12

    Abstract: Imaging lens for mobile phone for forming an image of an object, comprising in order from the object side: a first lens having a positive refractive power and having a convex surface toward the object side; an aperture stop, a second lens having a positive refractive power with a meniscus shape having a convex surface toward the image side; and a third lens having a negative refractive power and having a concave surface toward the image side, wherein the imaging lens satisfies the following inequalities: 0.20

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