利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.018 秒)

    Solid-State Laser Apparatus
    1.
    发明申请
    Solid-State Laser Apparatus 有权
    固态激光装置

    公开(公告)号：US20070297470A1

    公开(公告)日：2007-12-27

    申请号：US10569465

    申请日：2004-08-23

    申请人： Toshiyuki Kawashima ,  Tadashi Kanabe ,  Sadao Nakai ,  Hirofumi Kan

    发明人： Toshiyuki Kawashima ,  Tadashi Kanabe ,  Sadao Nakai ,  Hirofumi Kan

    IPC分类号： H01S3/04

    CPC分类号： H01S3/042 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/0606 ,  H01S3/08095 ,  H01S3/0941

    摘要： In the solid-state laser apparatus 1, a main pipe 11 for circulating a coolant through a solid-state laser medium 3 is provided with a heat exchanger 14, whereby the laser medium 3 is prevented from raising its temperature. When the coolant becomes acidic or alkaline, a controller 24 controls a flow regulating valve 23, so as to increase the flow rate of the coolant flowing into a bypass pipe 21 provided with a deionizing filter 22, whereby the acidity or alkalinity of the coolant can be weakened. This can prevent the coolant from deteriorating a predetermined part of the laser apparatus 3, and thus can improve the durability of the solid-state laser apparatus 1. Also, since the bypass pipe 21 connected in parallel to a part of the main pipe 11 is provided with the deionizing filter 22, the flow rate of the coolant circulating through the main pipe 11 can be restrained from decreasing, and the cooling efficiency of the laser medium 3 can be prevented from lowering.

    摘要翻译： 在固态激光装置1中，通过固体激光介质3使冷却剂循环的主管11设置有热交换器14，由此能够防止激光介质3升温。 当冷却剂变为酸性或碱性时，控制器24控制流量调节阀23，以便增加流入设置有去离子过滤器22的旁通管21中的冷却剂的流量，由此冷却剂的酸度或碱度可以 被削弱 这可以防止冷却剂使激光装置3的预定部分劣化，从而可以提高固态激光装置1的耐久性。 此外，由于与主管11的一部分并联连接的旁通管21设置有去离子过滤器22，所以可以抑制通过主管11循环的冷却剂的流量的降低，并且冷却效率 可以防止激光介质3的降低。

    Solid-state laser apparatus
    2.
    发明申请
    Solid-state laser apparatus 审中-公开
    固态激光装置

    公开(公告)号：US20070189346A1

    公开(公告)日：2007-08-16

    申请号：US10573114

    申请日：2004-08-23

    申请人： Toshiyuki Kawashima ,  Tadashi Kanabe ,  Sadao Nakai ,  Hirofumi Kan

    发明人： Toshiyuki Kawashima ,  Tadashi Kanabe ,  Sadao Nakai ,  Hirofumi Kan

    IPC分类号： H01S3/04 ,  H01S3/16

    CPC分类号： H01S3/0606 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0615 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/0941 ,  H01S3/1611 ,  H01S3/1643

    摘要： A solid-state laser apparatus which can cool a solid-state laser medium such that the solid-state laser medium attains a uniform temperature along the propagating direction of light to be amplified is provided. In a solid-state laser apparatus 1, a coolant circulating through flow paths 12a, 12b comes into direct contact with a pair of reflecting end faces 5a, 5b of a solid-state laser medium 3, whereby the laser medium 3 heated by pumping light emitted from semiconductor lasers 9 can efficiently be cooled. Since the coolant circulates through the flow paths 12a, 12b in a direction substantially perpendicular to a propagating surface P of light to be amplified L, the solid-state laser medium 3 can be cooled such as to attain a uniform temperature along a propagating direction of the light L. This can lower the thermal lens effect and thermal birefringence effect in the solid-state laser medium 3.

    摘要翻译： 提供一种可以冷却固态激光介质以使得固体激光介质沿着要放大的光的传播方向达到均匀温度的固态激光装置。 在固体激光装置1中，通过流路12a，12b的循环的冷却剂与固体激光介质3的一对反射端面5a，5b直接接触，由此激光介质3 通过泵浦从半导体激光器9发射的光来加热可以有效地被冷却。 由于冷却剂在与要放大的光L的传播面P大致正交的方向上通过流路12a，12b进行循环，所以能够冷却固体激光介质3，使其沿着传播的方向达到均匀的温度 可以降低固体激光介质3中的热透镜效应和热双折射效应。

    Solid-state laser apparatus
    3.
    发明授权
    Solid-state laser apparatus 有权
    固态激光装置

    公开(公告)号：US07502396B2

    公开(公告)日：2009-03-10

    申请号：US10569465

    申请日：2004-08-23

    申请人： Toshiyuki Kawashima ,  Tadashi Kanabe ,  Sadao Nakai ,  Hirofumi Kan

    发明人： Toshiyuki Kawashima ,  Tadashi Kanabe ,  Sadao Nakai ,  Hirofumi Kan

    IPC分类号： H01S3/04

    CPC分类号： H01S3/042 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/0606 ,  H01S3/08095 ,  H01S3/0941

    摘要： A solid-state laser apparatus which can improve its durability is provide.In the solid-state laser apparatus 1, a main pipe 11 for circulating a coolant through a solid-state laser medium 3 is provided with a heat exchanger 14, whereby the laser medium 3 is prevented from raising its temperature. When the coolant becomes acidic or alkaline, a controller 24 controls a flow regulating valve 23, so as to increase the flow rate of the coolant flowing into a bypass pipe 21 provided with a deionizing filter 22, whereby the acidity or alkalinity of the coolant can be weakened. This can prevent the coolant from deteriorating a predetermined part of the laser apparatus 3, and thus can improve the durability of the solid-state laser apparatus 1. Also, since the bypass pipe 21 connected in parallel to a part of the main pipe 11 is provided with the deionizing filter 22, the flow rate of the coolant circulating through the main pipe 11 can be restrained from decreasing, and the cooling efficiency of the laser medium 3 can be prevented from lowering.

    摘要翻译： 提供可以提高其耐久性的固态激光装置。 在固态激光装置1中，通过固体激光介质3使冷却剂循环的主管11设置有热交换器14，由此能够防止激光介质3升温。 当冷却剂变为酸性或碱性时，控制器24控制流量调节阀23，以便增加流入设置有去离子过滤器22的旁通管21中的冷却剂的流量，由此冷却剂的酸度或碱度可以 被削弱 这可以防止冷却剂使激光装置3的预定部分劣化，从而可以提高固态激光装置1的耐久性。而且，由于与主管11的一部分并联连接的旁通管21是 设置有去离子过滤器22时，可以抑制通过主管11循环的冷却剂的流量的降低，并且可以防止激光介质3的冷却效率降低。

    Solid-state laser amplifier
    4.
    发明授权
    Solid-state laser amplifier 失效
    固态激光放大器

    公开(公告)号：US5872804A

    公开(公告)日：1999-02-16

    申请号：US895923

    申请日：1997-07-17

    申请人： Hirofumi Kan ,  Yasukazu Izawa ,  Masanobu Yamanaka ,  Hiromitsu Kiriyama ,  Takuji Yoshida ,  Sadao Nakai ,  Chiyoe Yamanaka

    发明人： Hirofumi Kan ,  Yasukazu Izawa ,  Masanobu Yamanaka ,  Hiromitsu Kiriyama ,  Takuji Yoshida ,  Sadao Nakai ,  Chiyoe Yamanaka

    IPC分类号： H01S3/06 ,  H01S3/08 ,  H01S3/10 ,  H01S3/23 ,  H01S3/081

    CPC分类号： H01S3/235 ,  H01S3/0606 ,  H01S3/07 ,  H01S3/08072 ,  H01S3/08095

    摘要： A passive eight-pass solid-state laser amplifier is constructed using a quarter-wave plate (11), a total reflection mirror (12), a polarization beam splitter (5), and a total reflection mirror (6) while input/output faces of a hexagonal zigzag slab solid-state laser medium (15) optically pumped are kept nearly perpendicular to pulsed laser light. Thermal birefringence takes place in the laser medium (15) optically pumped with good symmetry by flash lamps or LDs (9) and is compensated for by a quartz 90.degree. rotator (10). Linearly s-polarized laser light reflected by a polarization beam splitter (3) is output as pulsed laser output light (13) to the outside. Owing to this, saturation laser amplification can be achieved using output laser light from a pulsed laser oscillator of relatively low output, as source light.

    摘要翻译： 使用四分之一波片（11），全反射镜（12），偏振分束器（5）和全反射镜（6）构成无源八通道固体激光放大器，同时输入/输出 光泵浦的六角形之字形固态激光介质（15）的面保持与脉冲激光几乎垂直。 热激光双折射发生在用闪光灯或LD（9）以良好对称性光泵浦的激光介质（15）中，并由石英90°旋转器（10）补偿。 由偏振分束器（3）反射的线性s偏振激光被作为脉冲激光输出光（13）输出到外部。 由此，可以使用来自相对低输出的脉冲激光振荡器的输出激光作为源光来实现饱和激光放大。

    Cesium-lithium-borate crystal and its application to frequency conversion of laser light
    5.
    发明申请
    Cesium-lithium-borate crystal and its application to frequency conversion of laser light 有权
    铯硼酸锂晶体及其应用于激光的变频

    公开(公告)号：US20060165578A1

    公开(公告)日：2006-07-27

    申请号：US11315134

    申请日：2005-12-23

    申请人： Takatomo Sasaki ,  Akio Hiraki ,  Yusuke Mori ,  Sadao Nakai

    发明人： Takatomo Sasaki ,  Akio Hiraki ,  Yusuke Mori ,  Sadao Nakai

    IPC分类号： C01B35/10

    CPC分类号： C30B29/22 ,  C30B15/00 ,  C30B17/00 ,  C30B29/10 ,  G02F1/353 ,  G02F1/3551 ,  G02F1/3553 ,  G02F1/37 ,  G02F2201/16

    摘要： The present invention provides a cesium-lithium-borate crystal, which can be used as a high-performance wavelength converting crystal, having a chemical composition expressed as CsLiB6O10, and substituted cesium-lithium-borate crystals expressed by the following formula: Cs1-xLi1-yMx+yB6O10 or Cs2(1−z)Li2LzB12O20 (where, M is an alkali metal element, and L is an alkali earth metal element); a method for manufacturing same by heating and melting; and an optical apparatus using such crystals.

    摘要翻译： 本发明提供一种可用作具有以CsLiB6O10表示的化学组成的高性能波长转换晶体的铯 - 硼酸锂晶体和由下式表示的取代的铯 - 锂 - 硼酸盐晶体：<β -line-formula description =“In-line Formulas”end =“lead”？> Cs> Li Li Li Li Li x x x x x x x / / / / / / / / / / / / / / / / / β-in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“在线公式”end =“lead”？>或<？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line 2“（1-z）2”>“2”>“2”> - > （式中，M为碱金属元素，L为碱土类金属元素）（式中，M为碱金属元素） ; 通过加热和熔融制造相同方法; 以及使用这种晶体的光学装置。

    Focusing optical system for semiconductor lasers
    6.
    发明授权
    Focusing optical system for semiconductor lasers 失效
    聚焦光学系统半导体激光器

    公开(公告)号：US5465178A

    公开(公告)日：1995-11-07

    申请号：US118791

    申请日：1993-09-10

    申请人： Sadao Nakai ,  Masanobu Yamanaka ,  Koji Ishikawa ,  Tsuyoshi Sato ,  Kimiaki Yamamoto ,  Mikihiko Terashima

    发明人： Sadao Nakai ,  Masanobu Yamanaka ,  Koji Ishikawa ,  Tsuyoshi Sato ,  Kimiaki Yamamoto ,  Mikihiko Terashima

    IPC分类号： G02B13/00 ,  G02B15/173 ,  H01S3/00 ,  H01S5/00 ,  H01S5/022 ,  G02B13/12 ,  G02B9/14 ,  H01S3/08

    CPC分类号： G02B15/173 ,  H01S5/005

    摘要： The invention is directed to a focusing optical system for semiconductor lasers, which is regulated in terms of magnification power in both its directions normal to the optical axis, so that the back focus of sufficient magnitude can be made equal in both the directions and the magnitude of aberration can be regulated to achieve an improvement in focusing efficiency, and in which a light beam from a semiconductor laser having varying exit angles in the horizontal and vertical directions is focused on a spot having substantially equal diameters in the horizontal and vertical directions. This focusing optical system comprises first lens unit L1 including a rotation asymmetric lens having positive power in the direction defined by a large exit angle at which a laser beam emanates from the laser, a second lens unit L2 including at least one lens of negative power, and a third lens unit L3 that is a rotation asymmetric lens unit having positive power in the directions defined by both large and small exit angles.

    摘要翻译： 本发明涉及一种用于半导体激光器的聚焦光学系统，其在与光轴垂直的方向上的放大倍数功率方面被调节，使得足够大的后焦距可以在方向和幅度上相等 可以调节像差以实现聚焦效率的提高，并且其中来自具有在水平和垂直方向上具有变化的出射角的半导体激光器的光束聚焦在水平和垂直方向上具有基本相等直径的光点上。 该聚焦光学系统包括第一透镜单元L1，其包括旋转非对称透镜，该旋转非对称透镜在由激光束从激光发出的大出射角限定的方向上具有正光焦度，第二透镜单元L2包括至少一个负光焦度， 以及第三透镜单元L3，其是在大小和小出射角度所限定的方向上具有正功率的旋转非对称透镜单元。

    Treatment process of sponge titanium powder
    7.
    发明授权
    Treatment process of sponge titanium powder 失效
    海绵钛粉的处理工艺

    公开(公告)号：US5582629A

    公开(公告)日：1996-12-10

    申请号：US392090

    申请日：1995-02-22

    申请人： Sadao Nakai ,  Kazuaki Arakawa

    发明人： Sadao Nakai ,  Kazuaki Arakawa

    IPC分类号： B02C17/08 ,  B22F9/04

    CPC分类号： B02C17/08 ,  B22F9/04 ,  B22F2009/041

    摘要： The present invention provides a process for reforming sponge titanium powder into intermediate titanium particles of desirable fluidity and superior bulk specific gravity suitable as a starting material of a titanium or titanium alloy product to be produced by powder metallurgy, comprising the steps of: charging a sponge titanium powder in mill pots of a planetary ball mill together with crushing medium; collapsing the particles of the powder to be consolidated forming a squamation under an inert atmosphere in the mill pots; and adjusting the particle size and particle diameter by cutting the squamated particle under an inert atmosphere in a crushing medium stirring mill. Thus a fundamental process has been developed for producing a material for a compact completely provided with superior properties of titanium such as high specific intensity, high fatique resistance at a considerably low cost just by molding powder and sintering it using an inexpensive powder of low purity without any hydrogeneration-dehydrogeneration treatment, HIP treatment, heat treatment and surface treatment, etc.

    摘要翻译： 本发明提供一种将海绵钛粉末重整成中等钛颗粒的方法，该中间钛颗粒具有理想的流动性和优异的堆积比重，适合作为通过粉末冶金制备的钛或钛合金产品的起始材料，包括以下步骤： 行星式球磨机碾锅中的钛粉与破碎介质一起使用; 将待固化的粉末颗粒塌陷，在惰性气氛下在研磨罐中形成鳞片状; 并通过在粉碎介质搅拌磨中在惰性气氛下切割鳞片状颗粒来调节粒径和粒径。 因此，已经开发了一种基本工艺，用于制造完全具有优异性能的材料，例如具有高比强度，高耐压性的钛，其成本很低，只需通过模制粉末并用廉价的低纯度粉末进行烧结，而不需要 任何加氢脱氢脱氢处理，HIP处理，热处理和表面处理等

    Birefringence distribution measuring method
    9.
    发明授权
    Birefringence distribution measuring method 失效
    双折射分布测量方法

    公开(公告)号：US5587793A

    公开(公告)日：1996-12-24

    申请号：US470157

    申请日：1995-06-06

    申请人： Sadao Nakai ,  Yasukazu Izawa ,  Masanobu Yamanaka ,  Masato Ohmi ,  Masanori Akatsuka ,  Chiyoe Yamanaka ,  Yoshiyuki Yonezawa

    发明人： Sadao Nakai ,  Yasukazu Izawa ,  Masanobu Yamanaka ,  Masato Ohmi ,  Masanori Akatsuka ,  Chiyoe Yamanaka ,  Yoshiyuki Yonezawa

    IPC分类号： G01J4/04 ,  G01N21/23 ,  H01S3/00 ,  H01S3/05 ,  H01S3/08

    CPC分类号： G01N21/23 ,  H01S3/08072

    摘要： A sample is placed between a circular polarizer and an analyzer in an optical path between a monochromatic light source and a two-dimensional optical receiver. Parallel beams emitted from the monochromatic light source are converted into circularly polarized light by the circular polarizer. After transmitting the sample, the light is guided to the analyzer. While rotating the analyzer about the axis of the beams, image data are detected by optical receiver at a step of a regular rotation angle, and the detected image data are sampled to be sent to an image processing device in the next stage. On the basis of the image data, an operation is conducted on each pixel to obtain a relative phase difference due to birefringence of the sample, the two-dimensional birefringence distribution including the sign of the relative phase difference, and also the principal axis direction.

    摘要翻译： 将样品放置在单色光源和二维光接收器之间的光路中的圆偏振器和分析器之间。 从单色光源发射的平行光束通过圆偏振器转换为圆偏振光。 发送样品后，将光引导至分析仪。 在围绕光束的轴线旋转分析器的同时，以规则的旋转角度的步骤，通过光学接收器检测图像数据，并且对所检测的图像数据进行采样以在下一阶段中发送到图像处理装置。 基于图像数据，对每个像素执行操作以获得由于样品的双折射，包括相对相位差的符号的二维双折射分布以及主轴方向的相对相位差。