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    DIFFRACTIVE OPTICAL DEVICE AND METHOD FOR PRODUCING SAME
    1.
    发明申请
    DIFFRACTIVE OPTICAL DEVICE AND METHOD FOR PRODUCING SAME 审中-公开
    衍射光学装置及其制造方法

    公开(公告)号：WO2004027464A8

    公开(公告)日：2005-02-24

    申请号：PCT/JP0310722

    申请日：2003-08-25

    Applicant: SUMITOMO ELECTRIC INDUSTRIES ,  USHIRO TOSHIHIKO ,  OKUBO SOICHIRO ,  MATSUURA TAKASHI

    Inventor： USHIRO TOSHIHIKO ,  OKUBO SOICHIRO ,  MATSUURA TAKASHI

    IPC: G02B5/18 ,  G02B26/08 ,  G02B5/30 ,  G02B27/18

    CPC classification number: G02B26/0808 ,  G02B5/1857 ,  G02B5/1866

    Abstract: A practical diffractive optical device is efficiently produced at a low cost. A modulated refractive index diffractive optical element comprises a transparent DLC (i.e. diamond-like carbon) film (2) formed on a transparent substrate (1), and the DLC film (2) includes a diffraction grating having a local region (2a) of a relatively high refractive index and a local region (2) of a relatively low refractive index. The DLC film (2) can be easily deposited on the substrate (1) by plasma CVD, and the relatively high refractive index region (2a) in the DLC film can be easily formed by irradiating the film with an energy beam (4) such as an ion beam.

    Abstract translation: 以低成本有效地生产实用的衍射光学器件。 调制折射率衍射光学元件包括形成在透明基板（1）上的透明DLC（即类金刚石碳）膜（2），DLC膜（2）包括具有局部区域（2a）的衍射光栅 相对较高的折射率和较低折射率的局部区域（2）。 可以通过等离子体CVD容易地将DLC膜（2）沉积在基板（1）上，并且可以通过用能量束（4）照射膜来容易地形成DLC膜中的相对高的折射率区域（2a） 作为离子束。

    4.
    发明专利
    未知

    公开(公告)号：DE60316469T2

    公开(公告)日：2008-06-26

    申请号：DE60316469

    申请日：2003-12-04

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： USHIRO TOSHIHIKO ,  OKUBO SOICHIRO ,  MATSUURA TAKASHI

    IPC: H01S5/028 ,  G02B5/18 ,  G02B27/00 ,  H01S5/026

    Abstract: Affords efficiently and at low cost practical, tiny light-emitting devices having an optically diffractive film on their light-output face. A light-emitting device (LD) includes a diffractive film (DF) formed on its light-output face; the diffractive film includes a transparent DLC (diamond-like carbon) layer; and the DLC layer includes a modulated-refractive-index diffraction grating containing local regions of relatively high refractive index and local regions of relatively low refractive index.

    7.
    发明专利
    未知

    公开(公告)号：DE60316469D1

    公开(公告)日：2007-10-31

    申请号：DE60316469

    申请日：2003-12-04

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： USHIRO TOSHIHIKO ,  OKUBO SOICHIRO ,  MATSUURA TAKASHI

    IPC: H01S5/028 ,  G02B5/18 ,  G02B27/00 ,  H01S5/026

    Abstract: Affords efficiently and at low cost practical, tiny light-emitting devices having an optically diffractive film on their light-output face. A light-emitting device (LD) includes a diffractive film (DF) formed on its light-output face; the diffractive film includes a transparent DLC (diamond-like carbon) layer; and the DLC layer includes a modulated-refractive-index diffraction grating containing local regions of relatively high refractive index and local regions of relatively low refractive index.

    POLARIZATION INTEGRATOR
    8.
    发明专利
    POLARIZATION INTEGRATOR 未知

    公开(公告)号：CA2550520A1

    公开(公告)日：2005-07-21

    申请号：CA2550520

    申请日：2005-01-07

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： USHIRO TOSHIHIKO ,  OKUBO SOICHIRO ,  MATSUURA TAKASHI

    IPC: G02B5/18 ,  G03B21/14 ,  G02B3/00 ,  G02B5/30 ,  G02B27/00 ,  G02B27/28 ,  G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  G03B21/20 ,  H04N9/31

    Abstract: A polarization integrator comprising a polarization beam splitter (PBS)(51) for separating a light from a light source (1) into P-polarization and S- polarization, a first micro-lens (52), a 1/2 wavelength plate (53), and a second micro-lens (54), wherein the first micro-lens is disposed so as to condense P-polarization and S-polarization separated by the PBS to mutually different positions, the 1/2 wavelength plate is disposed at a position wher e the P-polarization is condensed to act to convert P-polarization into S- polarization, the second micro-lens acts to integrate S-polarization after passed through the 1/2 wavelength plate and polarization-converted with S- polarization not passed through the 1/2 wavelength plate, and at least one o f the PBS, first micro-lens, 1/2 wavelength plate and second micro-lens is formed by using a DLC film.

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