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41. 发明授权

US07982957B2 Optical apparatus using a lens array 有权
标题翻译：使用透镜阵列的光学装置
公开(公告)号：US07982957B2
公开(公告)日：2011-07-19
申请号：US11822947
申请日：2007-07-11
申请人： Shinichi Takeuchi , Tamotsu Akashi , Hirofumi Aota
发明人： Shinichi Takeuchi , Tamotsu Akashi , Hirofumi Aota
IPC分类号： G02B27/10 , G02B6/32
CPC分类号： G02B3/0043 , G02B3/0031 , G02B3/005 , G02B27/0025
摘要： In an optical apparatus according to the present invention, the lens thicknesses and curvature radiuses of respective first lenses are optimized so that beam waist positions of optical beams emitted from the respective first lenses of a lens array are independently changed according to aberration of a second lens, and the focal position deviation due to the aberration of the second lens is cancelled by a difference between the beam waist positions, which is given on the lens array side. As a result, it is possible to suppress, at a low cost, variations in focal positions of the optical beams which are emitted from respective ports of the lens array to be condensed by the common lens.
摘要翻译：在根据本发明的光学装置中，各个第一透镜的透镜厚度和曲率半径被优化，使得从透镜阵列的各个第一透镜发射的光束的光束腰部位置根据第二透镜的像差独立地改变并且由于第二透镜的像差引起的焦点位置偏差被透镜阵列侧上给出的光束腰部位置之间的差异所抵消。结果，可以以低成本抑制从透镜阵列的各个端口发射的光束的焦点位置的变化，以被共用透镜冷凝。

42. 发明申请

US20090290223A1 OPTICAL APPARATUS AND OPTICAL TRANSMISSION APPARATUS 失效
标题翻译：光学装置和光传输装置
公开(公告)号：US20090290223A1
公开(公告)日：2009-11-26
申请号：US12356806
申请日：2009-01-21
申请人： Hirofumi AOTA , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
发明人： Hirofumi AOTA , Kohei Shibata , Tamotsu Akashi , Tsuyoshi Yamamoto
IPC分类号： G02B27/30 , G02B3/00
CPC分类号： G02B6/29313 , G02B6/29311 , G02B6/32 , G02B6/3512 , G02B6/3552 , G02B6/356 , G02B6/3582 , G02B27/30
摘要： An optical apparatus includes a collimation optical member for collimating and outputting input light, a condensing optical member for condensing light from the collimation optical member and a light blocking mask member provided at a place on an optical path of the input light for light blocking part of the input light, and enhances the degree of freedom in design of an optical system.
摘要翻译：一种光学装置，包括用于准直和输出输入光的准直光学构件，用于聚集来自准直光学构件的光的聚光光学构件和设置在输入光的光路上的位置处的遮光掩模构件，输入光，并增强了光学系统的设计自由度。

43. 发明授权

US07613370B2 Optical switch and method of adjusting optical switch 有权
标题翻译：光开关及调光方式
公开(公告)号：US07613370B2
公开(公告)日：2009-11-03
申请号：US12074060
申请日：2008-02-29
申请人： Kohei Shibata , Hirofumi Aota , Tamotsu Akashi , Toshiya Kishida , Hiroyuki Furukawa
发明人： Kohei Shibata , Hirofumi Aota , Tamotsu Akashi , Toshiya Kishida , Hiroyuki Furukawa
IPC分类号： G02B6/35
CPC分类号： G02B6/352 , G02B6/3556 , G02B6/356
摘要： An optical switch includes an input port into which a multiplexed optical signal is input; a dispersing unit that, according to wavelength, disperses the multiplexed optical signal into a plurality of optical signals that are each dispersed in a unique direction; a converging unit that converges the dispersed optical signals; plural mirrors that are arrayed forming a single row in a plane and reflecting the converged optical signals, respectively; and plural output ports through which the reflected optical signals are output. Each of the mirrors has a concave reflective surface that is in the plane and of a predetermined curvature about an axis parallel to the plane.
摘要翻译：光开关包括输入端口，输入多路复用光信号; 根据波长的分散单元将复用的光信号分散成分散在唯一方向上的多个光信号; 收敛分散的光信号的会聚单元; 多个反射镜分别在平面中形成单行并反射会聚的光信号; 以及输出反射光信号的多个输出端口。每个反射镜具有凹形反射表面，该凹面反射表面在平行于平面且围绕平行于该平面的轴线具有预定曲率。

44. 发明申请

US20080211044A1 Micro-electro-mechanical systems device 审中-公开
标题翻译：微机电系统装置
公开(公告)号：US20080211044A1
公开(公告)日：2008-09-04
申请号：US12071513
申请日：2008-02-21
申请人： Tamotsu Akashi , Tsuyoshi Yamamoto
发明人： Tamotsu Akashi , Tsuyoshi Yamamoto
IPC分类号： H01L29/84
CPC分类号： B81B3/0078 , B81B2201/042 , B81B2201/045 , B81B2203/0109 , G02B26/0833
摘要： According to an aspect of an embodiment, a micro-electro-mechanical systems (MEMS) device comprises a substrate, a MEMS and a movable absorber.The MEMS has a movable part having a resonance frequency on the substrate. The movable absorber absorbs a vibration in accordance with the resonance frequency so as to vibrate itself.
摘要翻译：根据实施例的一个方面，微电子机械系统（MEMS）装置包括衬底，MEMS和可移动吸收体。 MEMS具有在基板上具有共振频率的可移动部分。可移动吸收体根据谐振频率吸收振动，以便自身振动。

45. 发明授权

US07330617B2 Wavelength selective optical switch, and optical device provided with spectroscopic function 有权
标题翻译：波长选择光开关，以及配有光谱功能的光学元件
公开(公告)号：US07330617B2
公开(公告)日：2008-02-12
申请号：US11320973
申请日：2005-12-30
申请人： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Shinji Yamashita , Tsuyoshi Yamamoto , Shinichi Takeuchi , Yoshinobu Kubota , Nobuhiro Fukushima , Hiroyuki Furukawa , Toshiya Kishida
发明人： Hirofumi Aota , Kohei Shibata , Tamotsu Akashi , Shinji Yamashita , Tsuyoshi Yamamoto , Shinichi Takeuchi , Yoshinobu Kubota , Nobuhiro Fukushima , Hiroyuki Furukawa , Toshiya Kishida
IPC分类号： G02B6/26
CPC分类号： G02B6/29395 , G02B6/2931 , G02B6/29313 , G02B6/3512 , G02B6/4215
摘要： A wavelength selective optical switch of the present invention separates a WDM light emitted from an input port of an input and output optical system, according to wavelengths, by a diffraction grating, and thereafter, condenses the lights of respective wavelengths on MEMS mirrors respectively corresponding to the respective wavelengths, in a mirror array, to reflect them by a condenser optical system, to thereby switch optical paths for the respective lights. The condenser optical system is configured by combining a plurality of lenses whose focal distances are different from each other, and positions in an optical axis direction of the lenses are adjustable by a slide mechanism. Thus, despite an error in the focal distances of the condenser lenses, in a mounting angle of a spectral element or the like, a beam pitch at the condensing positions of the lights of respective wavelengths can be coincident with a mirror pitch in the mirror array.
摘要翻译：本发明的波长选择性光开关根据波长通过衍射光栅分离从输入和输出光学系统的输入端口发射的WDM光，然后将分别对应于反射镜阵列中的各个波长通过聚光器光学系统反射，从而切换各个光的光路。聚光器系统通过组合焦距彼此不同的多个透镜来构成，透镜的光轴方向的位置通过滑动机构来调节。因此，尽管聚光透镜的焦距存在误差，但是在光谱元件等的安装角度，各波长的光的聚光位置处的光束间距可以与镜阵列中的镜间距一致。

46. 发明申请

US20060093256A1 Optical switch 有权
标题翻译：光开关
公开(公告)号：US20060093256A1
公开(公告)日：2006-05-04
申请号：US11039962
申请日：2005-01-24
申请人： Shinji Yamashita , Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota , Osamu Tsuboi
发明人： Shinji Yamashita , Tsuyoshi Yamamoto , Tamotsu Akashi , Kohei Shibata , Hirofumi Aota , Osamu Tsuboi
IPC分类号： G02B6/26
CPC分类号： G02B6/3518 , G02B6/2931 , G02B6/29395 , G02B6/3558 , G02B6/356 , G02B6/357 , G02B6/3594
摘要： The optical switch includes: a spectroscopic device which separates wavelength division multiplexed (WDM) light into its component wavelengths; and a plurality of movable reflectors, arranged in a spectral direction at different intervals, for reflecting light of an individual component wavelength separated by said spectroscopic device. With this optical switch, deterioration of the characteristic of the pass band is avoided, so that the pass band characteristic is increased.
摘要翻译：光开关包括：将波分复用（WDM）光分解为其分量波长的分光装置; 以及多个可移动反射器，其以不同的间隔在光谱方向上布置，用于反射由所述分光装置分离的各个分量波长的光。利用该光开关，可以避免通带特性的劣化，从而增加通带特性。

47. 发明授权

US06925222B2 Photonic switch 失效
标题翻译：光子开关
公开(公告)号：US06925222B2
公开(公告)日：2005-08-02
申请号：US10265137
申请日：2002-10-07
申请人： Tamotsu Akashi , Tsuyoshi Yamamoto
发明人： Tamotsu Akashi , Tsuyoshi Yamamoto
IPC分类号： G02B26/02 , G02B6/35 , G02B26/08
CPC分类号： G02B6/3512 , G02B6/3518 , G02B6/352 , G02B6/3546 , G02B6/3584 , G02B6/3594
摘要： Disclosed is a photonic switch that includes a plurality of optical-path switching means having movable light reflecting portions that guide light from each of a plurality of input ports to any output port among a plurality of output ports. Each of the optical-path switching means is made to produce a specific loss so as to reduce path-to-path variations in loss along the paths from the input to the output ports. Specifically, loss along a path is the total of loss based upon optical path length and loss produced by the optical-path switching means. A specific loss is produced by each of the optical-path switching means in such a manner that total loss is equalized from path to path.
摘要翻译：公开了一种光子开关，其包括多个光路切换装置，其具有可将光从多个输入端口中的每一个引导到多个输出端口中的任何输出端口的可动光反射部分。使每个光路切换装置产生特定的损耗，以便减少沿着从输入端口到输出端口的路径的路径到路径的损耗变化。具体来说，沿着路径的损耗是基于光路长度和由光路切换装置产生的损耗的总损耗。每个光路切换装置产生一个特定的损耗，使得总损耗从路径到路径相等。

48. 发明授权

US06671074B2 Optical receiver for burst transmission system 失效
标题翻译：用于突发传输系统的光接收机
公开(公告)号：US06671074B2
公开(公告)日：2003-12-30
申请号：US10171558
申请日：2002-06-12
申请人： Tamotsu Akashi
发明人： Tamotsu Akashi
IPC分类号： H04B1006
CPC分类号： H04L7/0338 , H04B10/69 , H04B10/695
摘要： The present invention is applicable to a burst transmission system such as an ATM-PON optical subscriber system. An optical receiver for extending tolerable variation of input signal is disclosed. The optical receiver includes; an optical signal receiver for receiving an optical signal in burst transmission to regenerate and reshape waveform of the received optical signal; and a bit synchronizer for detecting the rise and fall change points of the signal being output from the optical signal receiver using an externally-input clock, for determining a discrimination phase according to the detected change points; and for discriminating to output the received optical signal at the timing of the determined discrimination phase. The optical signal receiver provides an amplitude detector for detecting received optical signal intensity. Also, the bit synchronizer provides a phase selector for selecting a discrimination phase timing corresponding to the received optical signal intensity detected by the amplitude detector.
摘要翻译：本发明适用于ATM-PON光用户系统等突发传输系统。公开了一种用于扩展输入信号容许变化的光接收器。光接收机包括：用于在突发传输中接收光信号以再生和重新形成所接收的光信号的波形的光信号接收器; 以及位同步器，用于使用外部输入时钟检测从光信号接收器输出的信号的上升和下降变化点，用于根据检测到的变化点确定鉴别阶段; 并且用于在所确定的鉴别阶段的定时识别输出所接收的光信号。光信号接收器提供用于检测接收到的光信号强度的振幅检测器。此外，比特同步器提供相位选择器，用于选择与由振幅检测器检测到的接收的光信号强度相对应的鉴别相位定时。

49. 发明授权

US06178212B1 Retiming circuit and method for performing retiming 失效
标题翻译：重新定时电路和执行重新定时的方法
公开(公告)号：US06178212B1
公开(公告)日：2001-01-23
申请号：US09039593
申请日：1998-03-16
申请人： Tamotsu Akashi
发明人： Tamotsu Akashi
IPC分类号： H04L700
CPC分类号： H04L7/02 , H04L7/0037 , H04L7/0041 , H04L7/0083 , H04L7/0337
摘要： A retiming circuit able to constantly perform sampling by a clock at a center portion of input data and performing a correct discrimination of logic “1” and “0” even if there is duty fluctuation of a pulse, provided with delay unit for imparting a variable delay to input data or a clock; a reference clock generating unit for generating a reference clock synchronized with the clock; a first phase difference detection unit for detecting a phase difference between a rising edge of the reference clock and the rising edge of the input data; a second phase difference detection unit for detecting a phase difference between the rising edge of the reference clock and a falling edge of the input data; and an intermediate phase setting unit for calculating the intermediate phase of the input data based on the outputs of the first and second phase difference detection units, the delay being controlled based on the intermediate phase.
摘要翻译：一种重新定时电路，能够通过输入数据的中心部分的时钟持续地执行采样，并且即使存在脉冲的占空比波动，也执行逻辑“1”和“0”的正确鉴别，该延迟单元具有用于赋予变量延迟输入数据或时钟; 参考时钟产生单元，用于产生与时钟同步的参考时钟; 第一相位差检测单元，用于检测参考时钟的上升沿和输入数据的上升沿之间的相位差; 第二相位差检测单元，用于检测参考时钟的上升沿与输入数据的下降沿之间的相位差; 以及中间相位设定单元，用于基于第一和第二相位差检测单元的输出来计算输入数据的中间相位，基于中间相位来控制延迟。

50. 发明授权

US4695321A Dynamic compaction of composite materials containing diamond 失效
标题翻译：包含钻石的复合材料的动态压实
公开(公告)号：US4695321A
公开(公告)日：1987-09-22
申请号：US858449
申请日：1986-05-01
申请人： Tamotsu Akashi , Akira Sawaoka
发明人： Tamotsu Akashi , Akira Sawaoka
IPC分类号： B01J3/08 , B22F3/08 , C04B35/56 , C04B35/563 , C04B35/5831 , C04B35/65 , C22C1/05 , C22C29/00
CPC分类号： C04B35/65 , B01J3/08 , B22F3/08 , C04B35/52 , C04B35/563 , C04B35/565 , C04B35/58071 , C04B35/5831 , C22C1/058 , Y10S100/911 , Y10S428/94 , Y10T428/12049 , Y10T428/12056 , Y10T428/30
摘要： This invention relates to high-hardness, high-toughness, high-density composite materials containing diamond, and a process for making such materials comprising applying shock compression to the composite powders and inducing an exothermic chemical reaction. The process is useful in making metal, ceramic and cermet diamond composite materials.
摘要翻译：本发明涉及含有金刚石的高硬度，高韧性，高密度复合材料，以及制造这种材料的方法，包括对复合粉末施加冲击压缩并引起放热化学反应。该方法可用于制备金属，陶瓷和金属陶瓷金刚石复合材料。

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