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61. 发明授权

US06388977B1 Hologram laser unit and optical pickup device including the same 失效
标题翻译：全息激光单元和包括其的光学拾取装置
公开(公告)号：US06388977B1
公开(公告)日：2002-05-14
申请号：US09334173
申请日：1999-06-15
申请人： Keiji Sakai , Yasuo Nakata
发明人： Keiji Sakai , Yasuo Nakata
IPC分类号： G11B700
CPC分类号： G11B7/1381 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： A hologram laser unit to be used for performing recording and reproducing operations of information for an optical disk, includes a light source, a photodetector, and a hologram element which are formed integrally with each other. The hologram element includes: a first hologram for detecting information signals from the optical disk, the first hologram being provided in an area having an effective diameter corresponding to a numerical aperture suitable for the optical disk; and a second hologram for compensating for only a transmitted light amount of light traveling toward the optical disk from the light source, the second hologram being provided contiguously outside the first hologram.
摘要翻译：用于执行光盘信息的记录和再现操作的全息激光单元包括彼此一体地形成的光源，光电检测器和全息元件。全息元件包括：用于检测来自光盘的信息信号的第一全息图，第一全息图设置在具有对应于适合于光盘的数值孔径的有效直径的区域中; 以及第二全息图，用于仅补偿从光源朝向光盘传播的光的透射光量，第二全息图连续地设置在第一全息图之外。

62. 外观设计

USD438556S1 Bank note sorter 失效
标题翻译：银行票据分拣机
公开(公告)号：USD438556S1
公开(公告)日：2001-03-06
申请号：US29110316
申请日：1999-09-03
申请人： Yoshiyuki Kato , Ken Urata , Hideo Atsumi , Keiji Sakai , Tadao Saito
设计人： Yoshiyuki Kato , Ken Urata , Hideo Atsumi , Keiji Sakai , Tadao Saito

63. 发明授权

US5652737A Magneto-optical disk pick-up device having mode splitter using cut off effect caused by tapered waveguide 失效
标题翻译：具有由锥形波导引起的截止效应的模式分离器的磁光盘拾取装置
公开(公告)号：US5652737A
公开(公告)日：1997-07-29
申请号：US561017
申请日：1995-11-21
申请人： Kohji Minami , Kuniaki Okada , Hiroyuki Yamamoto , Yoshio Yoshida , Yukio Kurata , Keiji Sakai
发明人： Kohji Minami , Kuniaki Okada , Hiroyuki Yamamoto , Yoshio Yoshida , Yukio Kurata , Keiji Sakai
IPC分类号： G02B6/122 , G02B6/126 , G02B6/28 , G11B7/12 , G11B7/135 , G11B11/10 , G11B11/105 , G11B11/00 , G02B6/26
CPC分类号： G11B7/124 , G02B6/1228 , G02B6/126 , G11B11/10545 , G02B6/2848
摘要： A mode splitter and the magneto-optical pick-up device including the mode splitter. The mode splitter includes a tapered waveguide portion whose thickness gradually becomes thin so that a light of at least one mode can be cut off. An emission position of a light wave can be varied depending on its mode. In this mode splitter, the emission position of the light wave of each mode can be adjusted by changing a thickness of the tapered waveguide, thereby improving the degree of freedom in designing the device.
摘要翻译：模式分离器和包括模式分离器的磁光拾取装置。模式分离器包括其厚度逐渐变薄的锥形波导部分，使得可以切断至少一种模式的光。光波的发射位置可以根据其模式而变化。在该模式分离器中，通过改变锥形波导管的厚度，可以调整各模式的光波的发射位置，从而提高设计的自由度。

64. 发明授权

US5502457A Fiber optic face plate for a seamless modular display 失效
标题翻译：光纤面板，用于无缝模块化显示
公开(公告)号：US5502457A
公开(公告)日：1996-03-26
申请号：US234666
申请日：1994-04-28
申请人： Keiji Sakai , Hiroyuki Yamamoto , Yukio Kurata
发明人： Keiji Sakai , Hiroyuki Yamamoto , Yukio Kurata
IPC分类号： G02B6/06 , G02B6/08 , G02F1/1335 , G09F9/30 , G09G3/36
CPC分类号： G02B6/08 , G02B6/06 , G02F1/133524 , G02F1/13336 , Y10S345/903 , Y10S385/901
摘要： A display apparatus of the present invention includes at least one display element having a display screen and an optical element for transiting an image from an input end face thereof to an output end face thereof. The optical element includes a first optical block and a second optical block each having a plurality of optical fibers combined together. The first optical block is connected to the display screen. One end face of the second optical block constitutes the output end face of the optical element. The numerical aperture of the optical fiber of the first optical block is smaller than the numerical aperture of the optical fiber of the second optical block. A diameter of the optical fiber of the first optical block is smaller than the diameter of the optical fiber of the second optical block.
摘要翻译：本发明的显示装置包括具有显示屏的至少一个显示元件和用于将图像从其输入端面转移到其输出端面的光学元件。光学元件包括第一光学块和第二光学块，每个光学块具有组合在一起的多个光纤。第一个光学块连接到显示屏。第二光学块的一个端面构成光学元件的输出端面。第一光学块的光纤的数值孔径小于第二光学块的光纤的数值孔径。第一光学块的光纤的直径小于第二光学块的光纤的直径。

65. 发明授权

US5408264A Three-dimensional image display apparatus for optically synthesizing images formed on different surfaces on a display screen 失效
标题翻译：三维图像显示装置，用于在显示屏幕上光学合成形成在不同表面上的图像
公开(公告)号：US5408264A
公开(公告)日：1995-04-18
申请号：US866724
申请日：1992-04-10
申请人： Yukio Kurata , Keiji Sakai , Yoshio Yoshida , Takahiro Miyake , Toshio Ishikawa
发明人： Yukio Kurata , Keiji Sakai , Yoshio Yoshida , Takahiro Miyake , Toshio Ishikawa
IPC分类号： G02B27/22 , G02B27/26 , G03B35/20 , H04N13/00 , H04N13/04
CPC分类号： H04N13/0495 , G02B27/26 , H04N13/042
摘要： A three-dimensional image display apparatus which includes a plurality of display devices, a first optical arrangement for synthesizing a plurality of images from the image display devices, a second optical arrangement for changing a position where at least one of the images is projected, the first and second optical arrangement synthesizing a plurality of images formed at different positions.
摘要翻译：一种三维图像显示装置，包括多个显示装置，用于从图像显示装置合成多个图像的第一光学装置，用于改变至少一个图像被投影的位置的第二光学装置，第一和第二光学装置合成在不同位置形成的多个图像。

66. 发明授权

US5279924A Manufacturing method of optical diffraction grating element with serrated gratings having uniformly etched grooves 失效
$Manufacturing method of optical diffraction grating element with serrated gratings having uniformly etched grooves$
标题翻译：具有均匀蚀刻凹槽的锯齿形光栅的光学衍射光栅元件的制造方法
公开(公告)号：US5279924A
公开(公告)日：1994-01-18
申请号：US908866
申请日：1992-07-01
申请人： Keiji Sakai , Katsuhiro Kubo , Yukio Kurata , Takahiro Miyake , Yoshio Yoshida
发明人： Keiji Sakai , Katsuhiro Kubo , Yukio Kurata , Takahiro Miyake , Yoshio Yoshida
IPC分类号： G02B5/18 , G11B7/135 , G03C5/00
CPC分类号： G11B7/1353 , G02B5/1814 , G02B5/1857 , G02B5/1871
摘要： The method of manufacturing an optical diffraction grating element of the present invention is characterized in adopting an ion beam made from a gas chemically reacting with a glass substrate when forming a diffraction grating having a serrated profile upon the glass substrate through an ion beam etching method. Also, when manufacturing an optical diffraction grating element that is divided into a plurality of regions whereon diffraction gratings having different diffraction angles with respect to an incident light are provided, the method of the present invention is characterized in forming slits into a resist film disposed upon a transparent substrate such as a glass substrate, in accordance with the patterns of the diffraction gratings, such that the width of the slits is constant irrespectively of the regions. Accordingly, the method of manufacturing an optical diffraction grating element of the present invention enables to improve the diffraction efficiency of the optical diffraction grating element, and to enhance the optical efficiency of an optical head device. The SN ratio of the output signals released by the optical head device may be thus improved and the servo error control executed accurately.
摘要翻译：本发明的光学衍射光栅元件的制造方法的特征在于，在通过离子束蚀刻法在玻璃基板上形成具有锯齿状的衍射光栅时，采用由与玻璃基板发生化学反应的气体制成的离子束。此外，当制造被分成多个区域的光学衍射光栅元件，其中衍射光栅相对于入射光具有不同衍射角的衍射光栅时，本发明的方法的特征在于将狭缝形成为设置在根据衍射光栅的图案，诸如玻璃基板的透明基板，使得狭缝的宽度与区域无关地是恒定的。因此，本发明的光学衍射光栅元件的制造方法能够提高光学衍射光栅元件的衍射效率，提高光学头装置的光学效率。可以提高由光头装置释放的输出信号的SN比，并且精确地执行伺服误差控制。

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