利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

79 条记录 (耗时 0.03 秒)

    LASER DIODE, OPTICAL DISK DEVICE AND OPTICAL PICKUP
    41.
    发明申请
    LASER DIODE, OPTICAL DISK DEVICE AND OPTICAL PICKUP 失效
    激光二极管，光盘设备和光学拾取

    公开(公告)号：US20100020838A1

    公开(公告)日：2010-01-28

    申请号：US12502564

    申请日：2009-07-14

    申请人： Makoto Oota ,  Hiroyuki Yokoyama ,  Masaru Kuramoto ,  Masao Ikeda

    发明人： Makoto Oota ,  Hiroyuki Yokoyama ,  Masaru Kuramoto ,  Masao Ikeda

    IPC分类号： H01S5/00

    CPC分类号： H01S5/0658 ,  H01S5/0425 ,  H01S5/0602 ,  H01S5/0652 ,  H01S5/1064 ,  H01S5/22 ,  H01S5/32341

    摘要： A laser diode capable of performing self-pulsation operation, and capable of sufficiently reducing the coherence of laser light and stably obtaining low-noise laser light is provided. A laser diode includes: a laser chip including at least one laser stripe which extends in a resonator length direction between a first end surface and a second end surface opposed to each other, in which the laser stripe includes a gain region and a saturable absorption region in the resonator length direction, and the width of the laser stripe in the saturable absorption region is larger than the width of the laser stripe in the gain region.

    摘要翻译： 提供能够进行自脉动操作并且能够充分降低激光的相干性并稳定地获得低噪声激光的激光二极管。 激光二极管包括：激光器芯片，其包括在彼此相对的第一端面和第二端面之间沿谐振器长度方向延伸的至少一个激光条纹，其中激光条纹包括增益区域和可饱和吸收区域 在谐振器长度方向上，可饱和吸收区域中的激光条纹的宽度大于增益区域中激光条纹的宽度。

    Still image pickup device
    43.
    发明申请
    Still image pickup device 审中-公开
    静止图像拾取装置

    公开(公告)号：US20060187333A1

    公开(公告)日：2006-08-24

    申请号：US11360916

    申请日：2006-02-23

    申请人： Michio Kobayashi ,  Hiroyuki Yokoyama

    发明人： Michio Kobayashi ,  Hiroyuki Yokoyama

    IPC分类号： H04N5/222

    CPC分类号： H04N5/23248 ,  H04N5/23267 ,  H04N5/23293

    摘要： An image pickup device includes: image pickup means that opposes correctly to a photographic subject, and forms and picks up an image of the same; display means that displays an image data picked up by the image pickup means; distance measuring means that measures a distance to the photographic subject to be picked up by the image pickup means; index display means that displays an index on the display means so as to be superimposed on the image data; angle of inclination measuring means that measures an angle of inclination of the image pickup means when it is inclined so as to align the index displayed by the index display means with a desired portion to be measured; and actual dimension calculating means that calculates actual dimensions of an image of the photographic subject on the basis of a measurement of the distance measuring means and a measurement of the angle of inclination measuring means.

    摘要翻译： 图像拾取装置包括：正确地与拍摄对象相对的图像拾取装置，并且形成并拾取其图像; 显示装置，其显示由图像拾取装置拾取的图像数据; 距离测量装置，其测量与由所述图像拾取装置拾取的所述被摄体的距离; 索引显示装置，其在所述显示装置上显示索引以便叠加在所述图像数据上; 倾斜测量装置，其倾斜时测量图像拾取装置的倾斜角度，以便将索引显示装置显示的索引与期望的测量部分对准; 以及实际尺寸计算装置，其基于距离测量装置的测量和倾斜角度测量装置的测量来计算被摄体的图像的实际尺寸。

    Optical repeater using two mode-locked laser diodes for regenerating output pulses of same wavelength as incident optical pulses
    44.
    发明授权
    Optical repeater using two mode-locked laser diodes for regenerating output pulses of same wavelength as incident optical pulses 失效
    光中继器使用两个锁模激光二极管，用于再生与入射光脉冲相同波长的输出脉冲

    公开(公告)号：US06650845B1

    公开(公告)日：2003-11-18

    申请号：US09694865

    申请日：2000-10-24

    申请人： Hisakazu Kurita ,  Hiroyuki Yokoyama

    发明人： Hisakazu Kurita ,  Hiroyuki Yokoyama

    IPC分类号： H04B1002

    CPC分类号： H04B10/299

    摘要： An optical repeater includes an optical splitter for splitting an optical input data pulse stream of wavelength &lgr;0 into first and second components. The first component is supplied to a first. mode-locked laser diode to produce a first clock pulse stream of wavelength &lgr;1 which is synchronized to the input data pulse stream. The first clock pulse stream is fed to a second mode-locked laser diode to produce a second clock pulse stream of wavelength &lgr;0 which is synchronized to the first clock pulse stream. The second clock pulse stream is entered to an optical gate. The second component of the input data from the splitter is amplified sufficiently to control the optical gate to modulate the second clock pulse stream so that the data pulse pattern is impressed on the second clock pulse stream.

    摘要翻译： 光中继器包括用于将波长λ0的光输入数据脉冲流分解成第一和第二分量的光分路器。 第一个组件被提供给第一个组件。 锁模激光二极管以产生与输入数据脉冲流同步的波长λ1的第一时钟脉冲流。 第一时钟脉冲流被馈送到第二锁模激光二极管以产生与第一时钟脉冲流同步的波长λ0的第二时钟脉冲流。 第二个时钟脉冲流被输入到光栅。 来自分离器的输入数据的第二分量被充分放大，以控制光栅来调制第二时钟脉冲流，使得数据脉冲模式被施加在第二时钟脉冲流上。

    Multiple-cavity semiconductor laser capable of generating ultrashort light pulse train with ultrahigh repetition rate
    45.
    发明授权
    Multiple-cavity semiconductor laser capable of generating ultrashort light pulse train with ultrahigh repetition rate 失效
    能够以超高重复率产生超短光脉冲串的多腔半导体激光器

    公开(公告)号：US5586138A

    公开(公告)日：1996-12-17

    申请号：US418001

    申请日：1995-04-06

    申请人： Hiroyuki Yokoyama

    发明人： Hiroyuki Yokoyama

    IPC分类号： H01S5/00 ,  H01S3/082 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/065 ,  H01S5/12 ,  H01S3/10 ,  H01S3/19

    CPC分类号： H01S5/12 ,  H01S5/065 ,  H01S3/082 ,  H01S5/0601

    摘要： A semiconductor laser is provided which is capable of generating a train of ultrashort light pulses with an ultrahigh repetition frequency and which is useful in optical communications and optical information processing. The semiconductor laser is a mode-locked semiconductor laser which has two resonator cavities which are formed by two facets and a distributed feedback structure between these two facets. The length of the resonator cavity formed between one facet and the distributed feedback structure is 1/m (where m is an integer) of the length of the resonator cavity formed by the other facet and the distributed feedback structure. A saturable absorption region and a high-frequency modulation region are provided within the longer of the resonator cavities. By making the high-frequency modulation frequency be equal to the round trip frequency of the light within the longer resonator cavity, mode-locked operation is achieved. Because of the linking of the shorter resonator cavity, a train of light pulses having a repetition frequency of m times the mode-locked pulse train frequency is obtained.

    摘要翻译： 提供半导体激光器，其能够产生具有超高重复频率的超短光脉冲串，并且其可用于光通信和光信息处理。 半导体激光器是一种锁模半导体激光器，其具有由两个面形成的两个谐振腔，并且在这两个面之间具有分布式反馈结构。 在一个面和分布反馈结构之间形成的谐振腔的长度是由另一个面和分布反馈结构形成的谐振腔的长度的1 / m（其中m是整数）。 在谐振腔内较长的时间内设置饱和吸收区和高频调制区。 通过使高频调制频率等于较长谐振腔内的光的往返频率，实现了锁定操作。 由于较短谐振腔的连接，得到具有m倍于锁模脉冲序列频率的重复频率的一串光脉冲。

    Method and apparatus for inducing photochemical reaction
    48.
    发明授权
    Method and apparatus for inducing photochemical reaction 失效
    诱导光化学反应的方法和装置

    公开(公告)号：US4976930A

    公开(公告)日：1990-12-11

    申请号：US393070

    申请日：1989-08-03

    申请人： Shunji Kishida ,  Hiroyuki Yokoyama ,  Yukio Morishige ,  Kunihiko Washio

    发明人： Shunji Kishida ,  Hiroyuki Yokoyama ,  Yukio Morishige ,  Kunihiko Washio

    IPC分类号： C23C16/48 ,  G03F7/004 ,  G03F7/20

    CPC分类号： G03F7/70808 ,  C23C16/483 ,  G03F7/004 ,  G03F7/2041 ,  G03F7/70866

    摘要： According to a method and apparatus for inducing a photochemical reaction, a substrate is placed in a closed cell with a window for transmitting an ultraviolet beam therethrough and is located to oppose the window, a gas is filled to cause the phtoochemical reaction upon irradiation of the ultraviolet beam into the cell, ultraviolet pulses are repetitively controlled to emit at a predetermined intensity, an ultraviolet beam size and shape are adjusted in accordance with a size and a shape of an irradiation portion of the substrate, the repetition frequency of the ultraviolet beam is adjusted and set to effectively cause the photochemical reaction on the substrate in accordance with the adjusted ultraviolet beam size and shape, and the ultraviolet beam having the set beam size and shape at the repetition frequency is irradiated through the window of the cell.

    摘要翻译： 根据用于诱导光化学反应的方法和装置，将基板放置在具有用于透射紫外线的窗口的闭孔中，并将其定位成与窗口相对，填充气体以在辐射后产生化学反应 紫外线进入电池，紫外线脉冲被重复地控制以预定的强度发射，紫外线的尺寸和形状根据基片的照射部分的大小和形状被调整，紫外线的重复频率为 调整并设定为根据调整的紫外线束的尺寸和形状有效地在基板上引起光化学反应，并且通过单元的窗口照射具有设定的光束尺寸和重复频率的形状的紫外线。

    Laser diode, optical disk device and optical pickup
    49.
    发明授权
    Laser diode, optical disk device and optical pickup 失效
    激光二极管，光盘设备和光学拾取器

    公开(公告)号：US08615027B2

    公开(公告)日：2013-12-24

    申请号：US12502564

    申请日：2009-07-14

    申请人： Makoto Oota ,  Hiroyuki Yokoyama ,  Masaru Kuramoto ,  Masao Ikeda

    发明人： Makoto Oota ,  Hiroyuki Yokoyama ,  Masaru Kuramoto ,  Masao Ikeda

    IPC分类号： H01S5/00

    CPC分类号： H01S5/0658 ,  H01S5/0425 ,  H01S5/0602 ,  H01S5/0652 ,  H01S5/1064 ,  H01S5/22 ,  H01S5/32341

    摘要： A laser diode capable of performing self-pulsation operation, and capable of sufficiently reducing the coherence of laser light and stably obtaining low-noise laser light is provided. A laser diode includes: a laser chip including at least one laser stripe which extends in a resonator length direction between a first end surface and a second end surface opposed to each other, in which the laser stripe includes a gain region and a saturable absorption region in the resonator length direction, and the width of the laser stripe in the saturable absorption region is larger than the width of the laser stripe in the gain region.

    摘要翻译： 提供能够进行自脉动操作并且能够充分降低激光的相干性并稳定地获得低噪声激光的激光二极管。 激光二极管包括：激光器芯片，其包括在彼此相对的第一端面和第二端面之间沿谐振器长度方向延伸的至少一个激光条纹，其中激光条纹包括增益区域和可饱和吸收区域 在谐振器长度方向上，可饱和吸收区域中的激光条纹的宽度大于增益区域中激光条纹的宽度。