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    • 21. 发明授权
    • Recording head and recording apparatus
    • 记录头和记录装置
    • US07556332B2
    • 2009-07-07
    • US11957120
    • 2007-12-14
    • Atsushi SakamotoHirokazu TanakaJiro Moriyama
    • Atsushi SakamotoHirokazu TanakaJiro Moriyama
    • B41J2/205
    • B41J2/2125B41J2202/17
    • A recording apparatus performs a recording operation with a recording head that includes a recording element having two types of discharge characteristics, and a memory holding k-bit information indicating a rank of the discharge characteristic of the recording element and j-bit information, where j and k has a relationship of k>j, indicating a difference from the k-bit information. The recording apparatus includes an acquiring unit to acquire the k-bit information and the j-bit information, a selection unit to select driving parameters of one of the two types of the recording elements based on the k-bit information, and select the driving parameters of the other of the two types of the recording elements based on the k-bit information and the j-bit information, and a control unit to control a driving of the recording head based on the driving parameters selected by the selection unit.
    • 记录装置用包括具有两种放电特性的记录元件的记录头进行记录操作,以及存储表示记录元件的放电特性和j位信息的等级的k位信息的存储器,其中j 并且k具有表示与k位信息的差的k> j的关系。 记录装置包括获取单元,用于获取k比特信息和j比特信息;选择单元,用于基于k比特信息选择两种类型的记录元素之一的驱动参数,并选择驾驶 基于k位信息和j位信息的两种类型的记录元件中的另一种的参数,以及控制单元,用于基于由选择单元选择的驱动参数来控制记录头的驱动。
    • 24. 发明申请
    • Optical component for optical communication
    • 用于光通信的光学元件
    • US20070165981A1
    • 2007-07-19
    • US11634952
    • 2006-12-07
    • Hirokazu TanakaMasanori WadaMasaaki Kadomi
    • Hirokazu TanakaMasanori WadaMasaaki Kadomi
    • G02B6/32
    • G02B6/327
    • Provided is an optical component for optical communication which is capable of suitably accepting a request to reduce a size, resisting a thermal expansion coefficient difference between constituent elements, and adjusting incident and exit modes relative to an end of an optical fiber to thereby constantly attain optical characteristics which correspond to the request. The optical component includes a fiber holding member (3) holding an optical fiber (2), and a lens (4) which is located on an optical path extending from an end of the optical fiber (2) and attached to the fiber holding member (3). A flat portion (4a) formed in a rear end of the lens (4) is bonded to be fixed to a flat portion (6a) of an end of the fiber holding member (3) such that the flat portion (4a) of the lens (4) is opposed to the end of the optical fiber (2). A gap is provided between the flat portion (4a) of the lens (4) and the end (2a) of the optical fiber (2).
    • 提供一种光通信用光学部件,其能够适当地接受减小尺寸,抵抗构成元件之间的热膨胀系数差异的请求,并且相对于光纤的端部调整入射和退出模式,从而不断获得光学 特征符合要求。 光学部件包括保持光纤(2)的光纤保持部件(3)和位于从光纤(2)的端部延伸并安装在光纤保持部件上的光路上的透镜(4) (3)。 形成在透镜(4)的后端的平坦部分(4a)被固定到纤维保持部件(3)的端部的平坦部分(6a)上,使得平坦部分(4a) )与光纤(2)的端部相对。 在透镜(4)的平坦部分(4a)和光纤(2)的端部(2a)之间设置间隙。
    • 27. 发明申请
    • Optical collimator
    • 光学准直仪
    • US20060256446A1
    • 2006-11-16
    • US10549756
    • 2004-03-22
    • Hirokazu TanakaNobuo Funabiki
    • Hirokazu TanakaNobuo Funabiki
    • G02B27/30
    • G02B6/327G02B6/3845
    • An optical collimator 21 includes a glass-made partially spherical lens 23 having translucent spherical surfaces 23b with approximately the same center of curvature at both ends of a columnar portion 23a, a glass-made or crystallized glass-made capillary tube 24 holding an optical fiber 25 with an angled end face 25a at a center, and a glass-made or crystallized glass-made cylindrical eccentric sleeve 22 having an inner hole 22a for fixing the partially spherical lens 23 and the capillary tube 24 therein. An optical axis Z of collimated beam 27 is in a round with radius range of 0.02 mm or less, and is in an angle range of 0.2° or less with respect to the center axis B of the outer surface of the eccentric sleeve 22.
    • 光学准直仪21包括玻璃制的部分球形透镜23,其具有半透明的球形表面23b,在柱状部分23a的两端处具有大致相同的曲率中心,玻璃制或结晶化的玻璃制毛细管24, 光纤25,中心具有成角度的端面25a,以及玻璃制或结晶化的玻璃制圆柱形偏心套筒22,其具有用于将部分球面透镜23和毛细管24固定在其中的内孔22a。 准直光束27的光轴Z为圆弧,半径范围为0.02mm以下,相对于偏心套筒22的外表面的中心轴线B为0.2°以下的角度范围。
    • 29. 发明申请
    • Monitoring device
    • 监控设备
    • US20060209396A1
    • 2006-09-21
    • US10564793
    • 2004-07-12
    • Hirokazu TanakaTetsuya OnishiRyuji Kawamoto
    • Hirokazu TanakaTetsuya OnishiRyuji Kawamoto
    • H01S3/00
    • G02B6/4214G02B6/34
    • [Object] A monitoring device for precisely taking out light for a monitor and having a simple structure and able to be made compact is provided. [Means for Resolution] A lens array 17 is attached to the tip face of an optical fiber array 12 holding optical fibers 14, 15 in parallel. A lens 19 is arranged in the lens array 17 so as to be opposed to the end face of each of the optical fibers 14, 15. A triangular prism 13 is arranged in front of the lens array 17. An incident-emitting face 22 of the triangular prism 13 is inclined with respect to the lens array 17. Signal light L emitted from the optical fiber 14 is converted into parallel light by the lens 19, and is incident to the triangular prism 13. After the signal light L is then totally reflected on the reflecting face 20, the signal light L is incident to a reflecting face 21. The incident angle of the signal light L incident to the reflecting face 21 is slightly smaller than a critical angle of the total reflection. The signal light L is leaked from the reflecting face 21 to the exterior by a constant ratio κ. Accordingly, the amount of the signal light L can be calculated by measuring this leak light La.
    • 提供了一种用于精确地取出监视器的光并且具有简单结构并且能够被制造成小型化的监视装置。 [分辨装置]透镜阵列17被并入保持光纤14,15的光纤阵列12的前端面。 透镜19配置在透镜阵列17中,以与光纤14,15的端面相对。 三角形棱镜13布置在透镜阵列17的前面。 三角形棱镜13的入射发射面22相对于透镜阵列17倾斜。 从光纤14发射的信号光L被透镜19转换为平行光,并入射到三角棱镜13。 在信号光L然后在反射面20上被全反射之后,信号光L入射到反射面21。 入射到反射面21的信号光L的入射角略小于全反射的临界角。 信号光L从反射面21向外部以恒定比例kappa泄漏。 因此,可以通过测量该泄漏光La来计算信号光L的量。