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    Optical information reproducing apparatus
    1.
    发明授权
    Optical information reproducing apparatus 失效
    光信息重放装置

    公开(公告)号：US5446719A

    公开(公告)日：1995-08-29

    申请号：US13038

    申请日：1993-02-03

    申请人： Yoshio Yoshida ,  Yukio Kurata ,  Shigeki Tsuji

    发明人： Yoshio Yoshida ,  Yukio Kurata ,  Shigeki Tsuji

    IPC分类号： G11B7/12 ,  G11B7/135 ,  G11B7/00 ,  G11B7/13

    CPC分类号： G11B7/1353 ,  G11B7/123

    摘要： An optical information reproducing apparatus of the invention includes a light emitting and receiving unit and an optical system. The optical system converges light from the light emitting and receiving unit on a recording medium and converges the light after reflected by the recording medium. The light emitting and receiving unit includes: a semiconductor laser device disposed on a substrate for generating light; a photo detector formed, integrally with the substrate, on the substrate on which the semiconductor laser device is disposed, for outputting a signal corresponding to the intensity of light incident thereon; and a beam splitter provided on an optical axis of the reflected light, the beam splitter leading part of the reflected light to the photo detector.

    摘要翻译： 本发明的光信息再现装置包括发光和接收单元和光学系统。 光学系统将来自发光和接收单元的光会聚在记录介质上，并在被记录介质反射之后会聚该光。 发光和接收单元包括：设置在用于产生光的基板上的半导体激光器件; 与基板一体形成的光电检测器，其上设置有半导体激光装置的基板，用于输出对应于入射到其上的光的强度的信号; 以及设置在反射光的光轴上的分束器，分束器将反射光的一部分引导到光电检测器。

    Display apparatus having a plurality of display devices
    2.
    发明授权
    Display apparatus having a plurality of display devices 失效
    具有多个显示装置的显示装置

    公开(公告)号：US5465315A

    公开(公告)日：1995-11-07

    申请号：US986052

    申请日：1992-12-02

    申请人： Keiji Sakai ,  Yoshio Yoshida ,  Hiroyuki Yamamoto ,  Yukio Kurata ,  Yasuo Nakata ,  Takahiro Miyake

    发明人： Keiji Sakai ,  Yoshio Yoshida ,  Hiroyuki Yamamoto ,  Yukio Kurata ,  Yasuo Nakata ,  Takahiro Miyake

    IPC分类号： G02B6/06 ,  G02F1/1333 ,  G09F9/305 ,  G02B6/08

    CPC分类号： G02F1/13336 ,  G02B6/06 ,  G09F9/305 ,  Y10S385/901

    摘要： A display apparatus of the invention includes: a plurality of display devices arranged in one direction, each of the plurality of display devices having a display area; and a plurality of image transmission means corresponding to the respective display devices, one end face of each of the image transmission means being coupled to a display area of the corresponding one of the display devices, other end faces of the image transmission means corresponding to the adjacent ones of the display devices being in contact with each other, the plurality of image transmission means being bent toward the one direction in which the display devices are arranged. Alternatively, a display apparatus of the invention includes: a plurality of display devices disposed in two directions, each of the plurality of display devices having a display area; a plurality of image transmission means corresponding to the respective display devices, one end face of each of the image transmission means being coupled to a display area of the corresponding one of the display devices, other end faces of the image transmission means corresponding to the adjacent ones of the display devices being in contact with each other, some of the plurality of image transmission means each having inward facing slopes and outward facing slopes on two pairs of opposing faces, the outward facing slopes of the image transmission means being directed to a direction in which the corresponding display device has no adjacent display devices.

    摘要翻译： 本发明的显示装置包括：沿一个方向布置的多个显示装置，所述多个显示装置中的每一个具有显示区域; 以及对应于各个显示装置的多个图像传输装置，每个图像传输装置的一个端面耦合到相应的一个显示装置的显示区域，对应于图像传输装置的另一个端面 相邻的显示装置彼此接触，所述多个图像传输装置朝向显示装置布置的一个方向弯曲。 或者，本发明的显示装置包括：多个显示装置，其设置在两个方向上，所述多个显示装置中的每一个具有显示区域; 与各个显示装置对应的多个图像传输装置，每个图像传输装置的一个端面耦合到对应的一个显示装置的显示区域，图像传输装置的与相邻的显示装置相对应的另一个端面 所述显示装置中的一个相互接触，所述多个图像传输装置中的一些图像传输装置中的每一个在两对相对的面上具有向内的斜面和向外的斜面，所述图像传输装置的向外的斜面被引导到 其中相应的显示装置没有相邻的显示装置。

    Optical information recording and reproducing device
    3.
    发明授权
    Optical information recording and reproducing device 失效
    光信息记录和再现装置

    公开(公告)号：US5428595A

    公开(公告)日：1995-06-27

    申请号：US9911

    申请日：1993-01-27

    申请人： Yoshio Yoshida ,  Hideaki Sato ,  Yukio Kurata ,  Hiroyuki Yamamoto ,  Nobuo Ogata ,  Katsuhiro Kubo

    发明人： Yoshio Yoshida ,  Hideaki Sato ,  Yukio Kurata ,  Hiroyuki Yamamoto ,  Nobuo Ogata ,  Katsuhiro Kubo

    IPC分类号： G11B7/09 ,  G11B7/135 ,  G11B17/32

    CPC分类号： G11B7/1353

    摘要： An optical information recording and reproducing device is provided. The device includes a light source for emitting a light beam, a first diffraction element for splitting the light beam into at least three diffracted beams, an optical system guiding the diffracted beams to a recording medium, and a second diffraction element including at least one division line and a diffraction surface from which the diffracted beams are diffracted. The diffraction surface is divided into at least two regions by the division line or lines. One of the division lines is at a predetermined angle against the direction of a track on the recording medium, and the regions split each of the diffracted beams into at least two parts to diffract the parts in different directions. The device also includes an optical detecting element for detecting the light beams diffracted with the second diffraction element.

    摘要翻译： 提供了一种光信息记录和再现装置。 该装置包括用于发射光束的光源，用于将光束分成至少三个衍射光束的第一衍射元件，将衍射光束引导到记录介质的光学系统，以及包括至少一个分割部分的第二衍射元件 线衍射面和衍射光束衍射的衍射面。 通过划分线或线将衍射面分成至少两个区域。 分割线之一与记录介质上的轨道的方向成预定角度，并且区域将每个衍射光束分成至少两个部分，以在不同方向上衍射该部分。 该装置还包括用于检测与第二衍射元件衍射的光束的光学检测元件。

    Optical device having two optical waveguides connected and a method of producing the same
    4.
    发明授权
    Optical device having two optical waveguides connected and a method of producing the same 失效
    具有连接的两个光波导的光学器件及其制造方法

    公开(公告)号：US5410623A

    公开(公告)日：1995-04-25

    申请号：US111144

    申请日：1993-08-24

    申请人： Kouji Minami ,  Kuniaki Okada ,  Renzaburo Miki ,  Hiroyuki Yamamoto ,  Yoshio Yoshida ,  Yukio Kurata

    发明人： Kouji Minami ,  Kuniaki Okada ,  Renzaburo Miki ,  Hiroyuki Yamamoto ,  Yoshio Yoshida ,  Yukio Kurata

    IPC分类号： G02B6/122 ,  G02B6/12 ,  G02B6/132 ,  G02B6/26 ,  G02B6/42

    CPC分类号： G02B6/132 ,  G02B6/262 ,  G02B6/4207 ,  G02B2006/12038 ,  G02B2006/12095 ,  G02B2006/12116 ,  G02B2006/12195

    摘要： An optical device includes: a first dielectric slab waveguide having an effective refractive index N.sub.1 ; a second dielectric slab waveguide having an effective refractive index N.sub.2 ; and a third dielectric slab waveguide having a length 1 and an effective refractive index N.sub.3, the third dielectric slab waveguide being formed between the first dielectric slab waveguide and the second dielectric slab waveguide so as to connect the first dielectric slab waveguide with the second dielectric slab waveguides optically; wherein the length I and the effective refractive index N.sub.3 substantially satisfy following equations; ##EQU1## where .lambda. is a free-space wavelength of light traveling in the optical device and the light travels from the first dielectric slab waveguide to the third dielectric slab waveguide at an incident angle .THETA. in a single mode.

    摘要翻译： 光学装置包括：具有有效折射率N1的第一电介质平板波导; 具有有效折射率N2的第二电介质平板波导; 以及具有长度1和有效折射率N3的第三电介质平板波导，所述第三电介质平板波导形成在所述第一电介质平板波导和所述第二电介质平板波导之间，以将所述第一电介质平板波导与所述第二电介质平板 光波导; 其中长度I和有效折射率N3基本上满足以下等式; 其中λ是在光学器件中行进的光的自由空间波长，并且光以单一模式以入射角THETA从第一电介质平板波导传播到第三电介质平板波导。

    Optical diffraction grating element
    5.
    发明授权
    Optical diffraction grating element 失效
    光学衍射光栅元件

    公开(公告)号：US5283690A

    公开(公告)日：1994-02-01

    申请号：US503039

    申请日：1990-04-02

    申请人： Takahiro Miyake ,  Yoshio Yoshida ,  Yukio Kurata

    发明人： Takahiro Miyake ,  Yoshio Yoshida ,  Yukio Kurata

    IPC分类号： G02B5/18 ,  G11B7/135 ,  G02B27/44

    CPC分类号： G11B7/1353 ,  G02B5/1814 ,  G02B5/1857 ,  G02B5/1871

    摘要： An optical diffraction grating element comprising diffraction gratings having a configuration in which grooves and flat lands each positioned between the adjacent grooves are successively alternately formed, wherein the diffraction gratings have the same groove depth, groove width and groove tilt angle in order to obtain a constant 0th-order diffraction efficiency and first-order diffraction efficiency in the optical diffraction grating element while the pitches of the diffraction gratings are made different by setting a different land width for each diffraction grating.

    摘要翻译： 一种光学衍射光栅元件，包括衍射光栅，该衍射光栅具有这样一种构造，其中相邻沟槽之间的槽和平坦的焊盘位于相邻的槽之间，其中衍射光栅具有相同的槽深度，槽宽度和槽倾斜角，以获得恒定的 光衍射光栅元件的0次衍射效率和一级衍射效率，而衍射光栅的间距通过为每个衍射光栅设定不同的焊盘宽度而不同。

    Polarization detector
    7.
    发明授权
    Polarization detector 失效
    极化探测器

    公开(公告)号：US5473470A

    公开(公告)日：1995-12-05

    申请号：US093920

    申请日：1993-07-21

    申请人： Takahiro Miyake ,  Yoshio Yoshida ,  Yasuo Nakata ,  Yukio Kurata

    发明人： Takahiro Miyake ,  Yoshio Yoshida ,  Yasuo Nakata ,  Yukio Kurata

    IPC分类号： G01J4/04 ,  G02B5/18 ,  G02B5/30 ,  G02B27/28 ,  G11B11/10 ,  G11B11/105 ,  G11B7/00

    CPC分类号： G01J4/04 ,  G02B27/283 ,  G02B5/1809 ,  G02B5/1814

    摘要： A polarization detector includes a polarization diffraction element having a substrate with two facing surfaces which are placed in parallel with each other, a first diffraction grating formed on one surface of the substrate, and a second diffraction grating formed on the other surface of the substrate, with light being incident upon the first diffraction grating. Further, each grating pitch of the first diffraction grating and the second diffraction grating are nearly equal to a wavelength of the incident light. A limiting member is also included for limiting an incident region of the incident light with respect to the polarization diffraction element. The limiting member is formed on a light incident side of the first diffraction grating. Further, a converging lens is included for respectively converging light transmitted through the first diffraction grating and the second diffraction grating and light diffracted by the first diffraction grating and the second diffraction grating into different beam spots. Finally, a pair of photodetectors are included for detecting each optical intensity of the two beam spots converged by the converging lens.

    摘要翻译： 偏振检测器包括具有彼此平行放置的具有两个相对表面的基板的偏振衍射元件，形成在基板的一个表面上的第一衍射光栅和形成在基板的另一表面上的第二衍射光栅， 光入射到第一衍射光栅上。 此外，第一衍射光栅和第二衍射光栅的每个光栅间距几乎等于入射光的波长。 还包括限制入射光相对于偏振衍射元件的入射区域的限制构件。 限制部件形成在第一衍射光栅的光入射侧。 此外，包括会聚透镜，用于分别会聚透过第一衍射光栅和第二衍射光栅的光以及由第一衍射光栅和第二衍射光栅衍射的光成为不同的光束点。 最后，包括一对光检测器，用于检测由会聚透镜会聚的两束光束的每个光强度。

    Optical scan device having an optical diffraction grating element
    8.
    发明授权
    Optical scan device having an optical diffraction grating element 失效
    具有光学衍射光栅元件的光学扫描装置

    公开(公告)号：US5428472A

    公开(公告)日：1995-06-27

    申请号：US114140

    申请日：1993-08-31

    申请人： Takahiro Miyake ,  Yoshio Yoshida ,  Yukio Kurata

    发明人： Takahiro Miyake ,  Yoshio Yoshida ,  Yukio Kurata

    IPC分类号： G02B5/18 ,  G11B7/135 ,  G02B27/44

    CPC分类号： G11B7/1353 ,  G02B5/1814 ,  G02B5/1857 ,  G02B5/1871

    摘要： An optical scan device comprising a light source and an optical diffraction grating element movable relatively to the light source, which is designed to substantially linearly scan a recording medium in a predetermined direction with a uniform light amount of a light beam emitted from the light source as the optical diffraction grating element moves relatively to the light source. The optical diffraction grating element comprising diffraction gratings having a configuration in which grooves and flat lands each positioned between the adjacent grooves are successively alternately formed, wherein the diffraction gratings have the same groove depth, groove width and groove tilt angle in order to obtain a constant 0th-order diffraction efficiency and first-order diffraction efficiency in the optical diffraction grating element while the pitches of the diffraction gratings are made different by setting a different land width for each diffraction grating.

    摘要翻译： 一种光学扫描装置，包括光源和相对于光源可移动的光学衍射光栅元件，其被设计成以从光源发射的光束的均匀光量基本上沿预定方向线性扫描记录介质， 光学衍射光栅元件相对于光源移动。 光学衍射光栅元件包括衍射光栅，其具有连续交替形成沟槽和平坦的焊盘之间的构造，其中衍射光栅具有相同的槽深度，槽宽度和槽倾斜角，以获得常数 光衍射光栅元件的0次衍射效率和一级衍射效率，而衍射光栅的间距通过为每个衍射光栅设定不同的焊盘宽度而不同。