-
公开(公告)号：US20060055765A1
公开(公告)日：2006-03-16
申请号：US11224027
申请日：2005-09-13
Applicant: Tadashi Minakuchi
Inventor： Tadashi Minakuchi
CPC classification number: G06K15/1219 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744
Abstract: A light scanning device capable of scanning a light beam on a photosensitive surface includes a light receiving system configured to receive the light beam and output a light receiving signal and a synchronizing signal generating system configured to generate a synchronizing signal with which light scanning is synchronized. The synchronizing signal generating system includes a first bias superimposing system configured to superimpose a first bias signal onto the light receiving signals to generate a first light receiving signal, a second bias superimposing system configured to superimpose a second bias signal with a different level from that of the first bias signal onto the light receiving signals to generate a second light receiving signal, a waveform shaping system configured to shape the waveform of the second light receiving signal, and a comparing system configured to compare the first light receiving signal with the second light receiving signal to output the synchronizing signal.
-
公开(公告)号：US20060013535A1
公开(公告)日：2006-01-19
申请号：US10701625
申请日：2003-11-06
Applicant: Masahiro Fushimi , Eiichi Ito , Tomohiro Fujita , Tadashi Minakuchi , Akira Arimoto , Mitsunori Iima , Yoshimi Obara , Shinji Tsukamoto , Ryoichi Nakanishi
Inventor： Masahiro Fushimi , Eiichi Ito , Tomohiro Fujita , Tadashi Minakuchi , Akira Arimoto , Mitsunori Iima , Yoshimi Obara , Shinji Tsukamoto , Ryoichi Nakanishi
CPC classification number: G02B6/4222 , G02B6/4227
Abstract: An optical communication device includes a light source that emits a light beam and an optical fiber having a core and a cladding. The optical fiber has a light entrance face having a core region and a cladding region. The light beam emitted by the light source is converged by a converging lens on the core region and is transmitted through the optical fiber. The entrance face is configured to generate a light intensity distribution in light reflected by the light entrance face depending on a position where the light beam is incident on the entrance face, a converging lens arranged between the light source and the optical fiber.
Abstract translation: 光通信装置包括发射光束的光源和具有芯和包层的光纤。 光纤具有具有芯区域和包层区域的光入射面。 由光源发射的光束由会聚透镜会聚在芯区域上，并透过光纤。 入射面被配置为根据光入射在入射面上的位置产生由光入射面反射的光的光强度分布，配置在光源和光纤之间的会聚透镜。
-
公开(公告)号：US5812727A
公开(公告)日：1998-09-22
申请号：US791963
申请日：1997-01-31
Applicant: Hiroshi Kanazawa , Tadashi Minakuchi , Masahiro Oono , Mitsunori Iima
Inventor： Hiroshi Kanazawa , Tadashi Minakuchi , Masahiro Oono , Mitsunori Iima
CPC classification number: G02B6/3636 , G02B26/124 , G02B6/3652 , G02B6/3839 , G02B6/3878
Abstract: A multi-beam scanning optical device uses optical fibers to transmit the laser fluxes from the semiconductor lasers. The optical fibers are arranged such that point light sources formed at respective exit ends of the optical fibers are linearly aligned. The exit light fluxes from the optical fibers are deflected by a polygon mirror and converged on an image surface to form a line of beam spots, which forms plurality of scanning lines per scan. In order to adjust the angle of the line of beam spots, the exit end portions of the optical fibers is fixed to a fiber alignment block such that the exit end surfaces of said optical fiber are linearly aligned on an alignment line. Further, the fiber alignment block is fixed to a cylindrical member which is rotatably supported by a supporting member. Accordingly, the angle of the line of beam spots can be easily adjusted by rotating the cylindrical member.
Abstract translation: 多光束扫描光学器件使用光纤从半导体激光器传输激光束。 光纤布置成使得形成在光纤的各出口端处的点光源线性对准。 来自光纤的出射光束由多面镜偏转并会聚在图像表面上以形成一束光斑，每行扫描形成多条扫描线。 为了调整光束线的角度，将光纤的出射端部固定在光纤取向块上，使得光纤的出射端面在对准线上线性排列。 此外，光纤对准块被固定到由支撑构件可旋转地支撑的圆柱形构件。 因此，可以通过旋转圆柱形构件容易地调节束斑线的角度。
-
公开(公告)号：US5150346A
公开(公告)日：1992-09-22
申请号：US769765
申请日：1991-10-04
Applicant: Tadashi Minakuchi
Inventor： Tadashi Minakuchi
IPC: G11B7/09
CPC classification number: G11B7/0901 , G11B7/0941
Abstract: A playback signal from an optical disk includes a track cross component which is produced when a head traverses tracks on the disk and a recorded area component produced when the head passes an area on the track on which data is recorded. A control signal is generated which includes the recorded area component but not the track cross component. The control signal is also prevented from being affected by a mirror mark which is included in the playback signal. A tracking servo control gain is controlled by the control signal.
Abstract translation: 来自光盘的重放信号包括当磁头横过磁盘上的轨道时产生的磁道横向分量以及当磁头通过记录有数据的磁道上的区域时产生的记录区域分量。 产生包括记录区域分量而不是轨道交叉分量的控制信号。 也防止了控制信号受包含在回放信号中的镜像标记的影响。 跟踪伺服控制增益由控制信号控制。
-
公开(公告)号：US07551195B2
公开(公告)日：2009-06-23
申请号：US11224027
申请日：2005-09-13
Applicant: Tadashi Minakuchi
Inventor： Tadashi Minakuchi
CPC classification number: G06K15/1219 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/0471 , H04N2201/04732 , H04N2201/04744
Abstract: A light scanning device capable of scanning a light beam on a photosensitive surface includes a light receiving system configured to receive the light beam and output a light receiving signal and a synchronizing signal generating system configured to generate a synchronizing signal with which light scanning is synchronized. The synchronizing signal generating system includes a first bias superimposing system configured to superimpose a first bias signal onto the light receiving signals to generate a first light receiving signal, a second bias superimposing system configured to superimpose a second bias signal with a different level from that of the first bias signal onto the light receiving signals to generate a second light receiving signal, a waveform shaping system configured to shape the waveform of the second light receiving signal, and a comparing system configured to compare the first light receiving signal with the second light receiving signal to output the synchronizing signal.
Abstract translation: 能够扫描感光表面上的光束的光扫描装置包括被配置为接收光束并输出光接收信号的光接收系统和被配置为产生同步信号的同步信号生成系统。 同步信号发生系统包括：第一偏置叠加系统，被配置为将第一偏置信号叠加到光接收信号上以产生第一光接收信号;第二偏置叠加系统，被配置为将具有不同电平的第二偏置信号与 所述第一偏置信号到所述光接收信号上以产生第二光接收信号，波形整形系统，被配置为对所述第二光接收信号的波形进行整形;以及比较系统，被配置为将所述第一光接收信号与所述第二光接收 信号输出同步信号。
-
Patent Agency Ranking
公开(公告)号：US06996311B1
公开(公告)日：2006-02-07
申请号：US10701625
申请日：2003-11-06
Applicant: Masahiro Fushimi , Eiichi Ito , Tomohiro Fujita , Tadashi Minakuchi , Akira Arimoto , Mitsunori Iima , Yoshimi Obara , Shinji Tsukamoto , Ryoichi Nakanishi
Inventor： Masahiro Fushimi , Eiichi Ito , Tomohiro Fujita , Tadashi Minakuchi , Akira Arimoto , Mitsunori Iima , Yoshimi Obara , Shinji Tsukamoto , Ryoichi Nakanishi
CPC classification number: G02B6/4222 , G02B6/4227
Abstract: An optical communication device includes a light source that emits a light beam and an optical fiber having a core and a cladding. The optical fiber has a light entrance face having a core region and a cladding region. The light beam emitted by the light source is converged by a converging lens on the core region and is transmitted through the optical fiber. The entrance face is configured to generate a light intensity distribution in light reflected by the light entrance face depending on a position where the light beam is incident on the entrance face, a converging lens arranged between the light source and the optical fiber.
Abstract translation: 光通信装置包括发射光束的光源和具有芯和包层的光纤。 光纤具有具有芯区域和包层区域的光入射面。 由光源发射的光束由会聚透镜会聚在芯区域上，并透过光纤。 入射面被配置为根据光入射在入射面上的位置产生由光入射面反射的光的光强度分布，配置在光源和光纤之间的会聚透镜。
-
公开(公告)号：US06344644B1
公开(公告)日：2002-02-05
申请号：US09419876
申请日：1999-10-15
Applicant: Tadashi Minakuchi
Inventor： Tadashi Minakuchi
IPC: G02B2610
CPC classification number: B41J2/471 , H04N1/047 , H04N1/1135 , H04N1/12 , H04N2201/02416 , H04N2201/02439 , H04N2201/03108 , H04N2201/04712 , H04N2201/04729 , H04N2201/04732 , H04N2201/04744 , H04N2201/04755 , H04N2201/04756 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791 , H04N2201/04794
Abstract: An optical scanning device is provided with a light source, a scanning system, a light receiving unit having a plurality of light receiving elements arranged in a main scanning direction, a resonance amplifying system that amplifies the light receiving signals of the light receiving elements. A clock signal is generated based on the resonance amplified signals. Further, a delay signal is generated to wait for stabilization of the clock signal. A synchronizing signal is generated based on the clock signal and the delay signal.
Abstract translation: 光学扫描装置设有光源，扫描系统，具有沿主扫描方向排列的多个光接收元件的光接收单元，放大光接收元件的光接收信号的谐振放大系统。 基于谐振放大信号产生时钟信号。 此外，产生延迟信号以等待时钟信号的稳定。 基于时钟信号和延迟信号产生同步信号。
-
公开(公告)号：US6011250A
公开(公告)日：2000-01-04
申请号：US106770
申请日：1998-06-30
Applicant: Tadashi Minakuchi , Taminori Odano
Inventor： Tadashi Minakuchi , Taminori Odano
IPC: B41J2/47 , G02B20060101 , G02B26/02 , H01S5/0683 , H01S5/40 , H01S3/10
CPC classification number: H01S5/0683 , B41J2/471 , H01S5/4025
Abstract: A light intensity controlling device has a beam splitter which splits light fluxes emitted from a plurality of independently controlled semiconductor lasers, guided by optical fibers, into monitor light fluxes and main light fluxes. A gain adjusting circuit corrects the changes of output of light receiving elements depending on the polarization states of the light fluxes incident into the beam splitter. The changes result from the polarization characteristics of the optical fibers and/or the beam splitter. Alternatively, a filter is provided at one of the light receiving elements to compensate for the changes, thus providing a corrected output signal. Laser control circuits control the light emitting intensity of each semiconductor laser based on corrected output signals. The light receiving elements are set at an angle to the incoming light as so to avoid directing reflected light back toward an imaging system or the lasers.
Abstract translation: 光强度控制装置具有分束器，其将由光纤引导的多个独立控制的半导体激光器发射的光束分成监视光束和主光束。 增益调整电路根据入射到分束器中的光束的极化状态来校正光接收元件的输出变化。 变化是由光纤和/或分束器的偏振特性引起的。 或者，在一个光接收元件处设置滤波器以补偿变化，从而提供经校正的输出信号。 激光控制电路基于校正的输出信号控制每个半导体激光器的发光强度。 光接收元件被设置成与入射光成一定角度，以避免将反射光引向成像系统或激光器。
-
公开(公告)号：US5898805A
公开(公告)日：1999-04-27
申请号：US791979
申请日：1997-01-31
Applicant: Hiroshi Kanazawa , Tadashi Minakuchi , Masahiro Oono , Mitsunori Iima
Inventor： Hiroshi Kanazawa , Tadashi Minakuchi , Masahiro Oono , Mitsunori Iima
CPC classification number: G02B6/3636 , B41J2/471 , G02B26/124 , G02B6/4207 , G02B6/4208 , G02B6/3652
Abstract: A light transmission device includes a semiconductor laser for emitting a laser flux, an optical fiber for transmitting the laser flux emitted from the semiconductor laser, and a device that prevents the laser flux, reflected at an incident end surface of the optical fiber, from returning to the semiconductor laser. In particular, the preventing device may be a slanted incident end surface of the optical fiber, such that the reflected laser flux at the incident end surface is directed away from the semiconductor laser. The preventing device may also be an optical isolator that is disposed between the semiconductor laser and the incident end surface of the optical fiber.
Abstract translation: 光传输装置包括用于发射激光束的半导体激光器，用于透射从半导体激光器发射的激光束的光纤，以及防止在光纤的入射端面反射的激光束返回的装置 到半导体激光器。 特别地，防止装置可以是光纤的倾斜的入射端面，使得入射端面处的反射激光束被引导离开半导体激光器。 防止装置也可以是设置在半导体激光器和光纤的入射端面之间的光隔离器。
-
公开(公告)号：US5892219A
公开(公告)日：1999-04-06
申请号：US654824
申请日：1996-05-29
Applicant: Tadashi Minakuchi , Masahiro Oono , Mitsunori Iima , Hiroshi Kanazawa
Inventor： Tadashi Minakuchi , Masahiro Oono , Mitsunori Iima , Hiroshi Kanazawa
IPC: B41J2/47 , G02B20060101 , G02B26/02 , H01S5/0683 , H01S5/40 , H01S3/10
CPC classification number: H01S5/0683 , B41J2/471 , H01S5/4025
Abstract: A light intensity controlling device has a beam splitter which splits light fluxes emitted from a plurality of independently controlled semiconductor lasers, guided by optical fibers, into monitor light fluxes and main light fluxes. A gain adjusting circuit corrects the changes of output of light receiving elements depending on the polarization states of the light fluxes incident into the beam splitter. The changes result from the polarization characteristics of the optical fibers and/or the beam splitter. Alternatively, a filter is provided at one of the light receiving elements to compensate for the changes, thus providing a corrected output signal. Laser control circuits control the light emitting intensity of each semiconductor laser based on corrected output signals. The light receiving elements are set at an angle to the incoming light as so to avoid directing reflected light back toward an imaging system or the lasers.
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.015 seconds)
