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公开(公告)号：US06901186B2
公开(公告)日：2005-05-31
申请号：US10294149
申请日：2002-11-14
申请人： Takashi Fukuzawa
发明人： Takashi Fukuzawa
IPC分类号： G02B6/32
摘要： An optical fiber collimator using a gradient index rod lens for securing a required long opposing distance and easy handling. The collimator includes a single mode fiber and a gradient index rod lens for receiving an incident light from the single mode fiber and converting the incident light into a collimated light, or condensing an incident light and coupling the condensed incident light to the single mode fiber. A meandering period (pitch) of a ray determined by a refractive index distribution of the rod lens is decided. The gradient index rod lens has a lens length larger by 0.5 meandering periods than a minimum lens length required to obtain a predetermined opposing distance between a pair of the rod lenses.
摘要翻译： 一种使用梯度折射率棒状透镜的光纤准直器，用于确保所需的长的相对距离和易于处理。 准直器包括单模光纤和渐变折射率棒状透镜，用于接收来自单模光纤的入射光，并将入射光转换为准直光，或聚光入射光并将聚光入射光耦合到单模光纤。 确定由棒状透镜的折射率分布确定的光线的曲折周期（间距）。 渐变折射杆透镜的透镜长度比获得一对棒状透镜之间的预定相对距离所需的最小透镜长度大0.5个曲折周期。
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公开(公告)号：US06888652B2
公开(公告)日：2005-05-03
申请号：US10084785
申请日：2002-02-25
申请人： Atsushi Miyake , Akimitsu Sato , Takashi Fukuzawa
发明人： Atsushi Miyake , Akimitsu Sato , Takashi Fukuzawa
CPC分类号： G01J1/02 , G01J1/0266 , G02B6/32 , G02B6/4225 , G02B6/4227 , H01S5/005 , H01S5/02252
摘要： A method of aligning a fiber collimator in a short time. Light emitted from a collimator is reflected by a mirror. Reflected light passes through the collimator, and is measured by a light intensity measuring device. Rotating bodies rotatably support the mirror about an X-axis and a Y-axis orthogonal to the optical axis. An aligner simultaneously drives the rotating bodies to scan an optimal angle for the mirror. With the mirror fixed at the optimal angle, the distance between a collimation lens of the collimator and the optical fiber is changed. Subsequently, the optimal angle of the mirror is again scanned.
摘要翻译： 一种在短时间内对准光纤准直仪的方法。 从准直仪发射的光被镜子反射。 反射光通过准直仪，并通过光强测量装置测量。 旋转体围绕与X轴正交的X轴和Y轴可旋转地支撑反射镜。 对准器同时驱动旋转体以扫描镜子的最佳角度。 将镜子固定在最佳角度时，准直器的准直透镜与光纤之间的距离发生变化。 随后，再次扫描镜的最佳角度。
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公开(公告)号：US20080315118A1
公开(公告)日：2008-12-25
申请号：US12140407
申请日：2008-06-17
申请人： Ryo Anraku , Takashi Fukuzawa
发明人： Ryo Anraku , Takashi Fukuzawa
IPC分类号： G01J1/58
CPC分类号： G01J3/02 , G01J3/0208 , G01J3/0218 , G01J3/024 , G01N21/645 , G01N2021/6434 , G01N2021/6478 , G01N2021/6484
摘要： A fluorescence measurement probe capable of stably receiving a maximum received light amount of a fluorescent light generated from a specimen onto which an excitation light is radiated. The fluorescence measurement probe is applied to a fluorescence measurement system provided with an optical system. A light source emits an excitation light. A detector receives the fluorescent light. A solid light guide path serves as an optical path of the excitation light as well as the fluorescent light. A lens is disposed between an edge surface of the solid light guide path and the specimen. When a radiation angle of the excitation light is set to 2θ at a position where the excitation light is collected by the lens which collects the fluorescent light. A excitation light beam NA expressed by sin θ is set to 0.14 or more and 0.31 or less.
摘要翻译： 一种荧光测量探针，其能够稳定地接收由照射激发光的样本产生的荧光的最大接收光量。 将荧光测量探针应用于配备有光学系统的荧光测量系统。 光源发出激发光。 检测器接收荧光灯。 固体光导路径用作激发光以及荧光的光路。 透镜设置在固体光导路径的边缘表面和样本之间。 当在由收集荧光的透镜收集激发光的位置处激发光的辐射角设定为2θ时， 由sinθ表示的激发光束NA设定为0.14以上且0.31以下。
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公开(公告)号：US07035506B2
公开(公告)日：2006-04-25
申请号：US10685088
申请日：2003-10-10
CPC分类号： G02B6/29361 , G02B6/262 , G02B6/2938
摘要： An optical module includes at least one optical fiber, a gradient index rod lens, and an optical element. The rod lens is placed at a position separated from an end surface of the optical fiber by a space. The optical element is separated from the rod lens. Outgoing light from the single optical fiber is inputted to the optical element via the rod lens, and light reflected by the optical element is coupled to the optical fiber via the rod lens. When a distance between the rod lens and the optical element is longer than a predetermined value, and a lens length optimized for the distance is equal to or less than a predetermined pitch, the rod lens has end surfaces perpendicular to an optical axis.
摘要翻译： 光学模块包括至少一个光纤，梯度折射率棒状透镜和光学元件。 棒状透镜被放置在与光纤的端面分开的位置上。 光学元件与棒状透镜分离。 来自单个光纤的出射光通过棒状透镜输入到光学元件，并且由光学元件反射的光通过杆状透镜耦合到光纤。 当棒状透镜和光学元件之间的距离长于预定值，并且对于该距离优化的透镜长度等于或小于预定间距时，该棒状透镜具有垂直于光轴的端面。
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公开(公告)号：US20050130779A1
公开(公告)日：2005-06-16
申请号：US10979426
申请日：2004-11-02
摘要： A chain for driving and engagement of at least one sprocket including plurality of interlaced link plates and a plurality of guide plates. The link plates are pivotably connected by connecting pins. The plurality of guide plates are disposed along the link plates and guide the chain on the sprocket in a width direction. At least one of the guide plates has a flat portion and a crotch portion and is in line with a marked position on the sprocket.
摘要翻译： 用于驱动和接合至少一个链轮的链条，其包括多个交错链接板和多个引导板。 链板通过连接销枢转连接。 多个引导板沿着链板设置，并且在宽度方向上将链条引导到链轮上。 至少一个导向板具有平坦部分和裆部，并且与链轮上的标记位置对齐。
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公开(公告)号：US06785441B2
公开(公告)日：2004-08-31
申请号：US10025986
申请日：2001-12-26
申请人： Ikuto Ooyama , Takashi Fukuzawa , Seiji Kai
发明人： Ikuto Ooyama , Takashi Fukuzawa , Seiji Kai
IPC分类号： G02B632
摘要： An optical fiber collimator having a lens (10), and an optical fiber chip (14) disposed at a distance from the lens, the optical fiber chip holding an end portion of an optical fiber (12) and having an end surface treated to be inclined. The optical axis of the optical fiber is made eccentric with respect to the center of the lens to set the eccentric quantity of the optical fiber so that the center of the lens substantially coincides with the center of a light beam incident on the lens. The kind of the lens is optional. The lens may be an inexpensive spherical lens or may be a gradient index rod lens. When a gradient index rod lens is used, a lens in which a surface facing to the optical fiber chip is treated to be inclined is used as the gradient index rod lens.
摘要翻译： 具有透镜（10）的光纤准直仪和与透镜隔开一定距离设置的光纤芯片（14），所述光纤芯片保持光纤（12）的端部，并将端面处理为 倾向 光纤的光轴相对于透镜的中心偏心，以设定光纤的偏心量，使得透镜的中心基本上与入射到透镜上的光束的中心重合。 透镜的种类是可选的。 透镜可以是廉价的球面透镜，或者可以是梯度折射率棒状透镜。 当使用梯度折射率棒状透镜时，使用其中面向光纤芯片的表面被处理为倾斜的透镜作为渐变折射率棒状透镜。
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公开(公告)号：US06782162B2
公开(公告)日：2004-08-24
申请号：US10212416
申请日：2002-08-05
申请人： Takashi Fukuzawa , Hiroyuki Tanaka , Ikuto Ohyama , Takeshi Ishimaru , Minoru Taniyama , Shigeo Kittaka
发明人： Takashi Fukuzawa , Hiroyuki Tanaka , Ikuto Ohyama , Takeshi Ishimaru , Minoru Taniyama , Shigeo Kittaka
IPC分类号： G02B632
CPC分类号： G02B6/2937 , G02B6/32
摘要： An optical module which satisfies a required insertion loss and can be easily assembled with high productivity. The optical module includes first optical fiber, a first lens, an optical device, a second lens, and second optical fiber. The first lens receives an incident light from the first optical fiber and converts the incident light into a parallel light. The optical device receives the parallel light and performs predetermined optical processing on the parallel light. The second lens receives a transmitted parallel light from the optical device and converge the transmitted parallel light to produce an outgoing light. The second optical fiber receives the outgoing light. An optical axis of the first lens and an optical axis of the second lens are substantially coincident with each other. An optical axis of the first optical fiber and an optical axis of the second optical fiber are substantially parallel with each other and substantially parallel to the optical axes of the first and the second lenses.
摘要翻译： 一种满足所需插入损耗并且可以以高生产率容易地组装的光学模块。 光学模块包括第一光纤，第一透镜，光学装置，第二透镜和第二光纤。 第一透镜接收来自第一光纤的入射光并将入射光转换成平行光。 光学装置接收平行光并对平行光进行预定的光学处理。 第二透镜从光学装置接收透射的平行光，并且会聚发射的平行光以产生出射光。 第二光纤接收出射光。 第一透镜的光轴和第二透镜的光轴基本上彼此重合。 第一光纤的光轴和第二光纤的光轴基本上彼此平行并且基本上平行于第一和第二透镜的光轴。
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18.发明授权Optical wavelength demultiplexing detector for fluorescence analysis and fluorescence detection system 有权用于荧光分析和荧光检测系统的光学波长解复用检测器公开(公告)号：US08263945B2
公开(公告)日：2012-09-11
申请号：US12778359
申请日：2010-05-12
申请人： Takashi Fukuzawa
发明人： Takashi Fukuzawa
IPC分类号： G01N21/64
CPC分类号： G01N21/645
摘要： An optical wavelength demultiplexing detector for fluorescence analysis that is compact, has a small number of components, and is easy to assemble. An excitation light received via a first optical transmission path is outputted to a second optical transmission path, and a fluorescence arising from the excitation light outputted from the second optical transmission path is received via the second optical transmission path and detected. The excitation light having propagated through the first optical transmission path and the fluorescence having propagated through the second optical transmission path are received by the same surface of a first lens. An optical wavelength selection member comprised of a dielectric multilayer film receives the excitation light and the fluorescence passed through the first lens, and reflects the excitation light and passes the fluorescence. A photoelectric conversion element directly receives the fluorescence passed through the first optical wavelength selection member.
摘要翻译： 用于荧光分析的光学波长解复用检测器是紧凑的，具有少量的部件，并且易于组装。 通过第一光传输路径接收的激发光被输出到第二光传输路径，并且经由第二光传输路径接收从第二光传输路径输出的激发光产生的荧光并被检测。 通过第一光传输路径传播的激发光和通过第二光传输路径传播的荧光被第一透镜的相同表面接收。 由电介质多层膜构成的光波长选择元件接收激发光并且通过第一透镜的荧光，并且反射激发光并通过荧光。 光电转换元件直接接收通过第一光波长选择元件的荧光。
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公开(公告)号：US07231116B2
公开(公告)日：2007-06-12
申请号：US10680886
申请日：2003-10-08
IPC分类号： G02B6/32
CPC分类号： G02B6/29389 , G02B6/2937 , G02B6/322 , G02B6/3885 , H04J14/02
摘要： A filter module is provided for an optical communications system. The filter module includes a lens, three optical fibers, an optical filter, and a mirror. The three optical fibers are arranged on a single side of the lens. The lens includes a first face coated with the optical filter and that faces the mirror. The optical fibers are arranged on a second face of the lens. A cascade of the filter modules are configured to connect and form a multiplexing/demultiplexing unit.
摘要翻译： 提供了一种用于光通信系统的滤波器模块。 滤波器模块包括透镜，三根光纤，光学滤波器和反射镜。 三根光纤布置在透镜的单侧上。 透镜包括涂覆有滤光器并且面向反射镜的第一面。 光纤布置在透镜的第二面上。 滤波器模块的级联被配置为连接和形成复用/解复用单元。
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公开(公告)号：US06704147B2
公开(公告)日：2004-03-09
申请号：US09968841
申请日：2001-10-03
申请人： Takashi Fukuzawa , Yoshiro Sato
发明人： Takashi Fukuzawa , Yoshiro Sato
IPC分类号： G02B300
CPC分类号： G02B3/0087
摘要： A method of producing a collimator or collimator array is constituted by the steps of: fixing long-size gradient index rod lens raw materials on a substrate having end surfaces each forming a plane so that the long-size gradient index rod lens raw materials are arranged side by side at intervals of the predetermined pitch while optical axes of the gradient index rod lens raw materials are parallel to one of the end surfaces of the substrate; cutting the substrate provided with the gradient index rod lens raw materials at a predetermined position in a plane perpendicular to the optical axes of the gradient index rod lens raw materials to thereby divide the substrate provided with the gradient index rod lens raw materials into lens array parts; adjusting the divided lens array parts so that each of the gradient index rod lens raw materials in the lens array parts has a defined lens length; and arranging the lens array parts so that the cut end surfaces of the lens array parts are made to face each other while optical axes of the lens parts facing each other correspondingly are made coincident with each other.
摘要翻译： 一种准直器或准直器阵列的制造方法，其特征在于，将长尺寸的梯度折射率棒状透镜原料固定在具有各自形成有平面的端面的基板上，使得所述长尺寸梯度折射率棒状透镜原料配置 以规定间隔的间隔并排设置，同时梯度折射率棒状透镜原料的光轴平行于基板的一个端面; 在垂直于渐变折射率棒状透镜原料的光轴的平面上的规定位置切割具有梯度折射率棒状透镜原料的基板，从而将设置有梯度折射率棒状透镜原料的基板分割成透镜阵列部 ; 调整分开的透镜阵列部分，使得透镜阵列部分中的每个梯度折射率棒状透镜原料具有限定的透镜长度; 并且将透镜阵列部分布置成使得透镜阵列部分的切割端面彼此面对，使得彼此面对的透镜部件的光轴彼此一致。
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