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    Light beam scanning apparatus which controls power and spot shape of light beam
    1.
    发明授权
    Light beam scanning apparatus which controls power and spot shape of light beam 失效
    光束扫描装置，用于控制光束的光束和斑点形状

    公开(公告)号：US5959655A

    公开(公告)日：1999-09-28

    申请号：US653395

    申请日：1996-05-24

    申请人： Seiji Maruo ,  Shinichi Nakatsuka ,  Akira Arimoto ,  Kunio Sato ,  Shinya Kobayashi ,  Susumu Saito

    发明人： Seiji Maruo ,  Shinichi Nakatsuka ,  Akira Arimoto ,  Kunio Sato ,  Shinya Kobayashi ,  Susumu Saito

    IPC分类号： G01J1/42 ,  G02B26/12 ,  H04N1/00 ,  H04N1/23 ,  H04N1/40 ,  G01J1/32

    CPC分类号： H04N1/40043 ,  G01J1/4257 ,  G02B26/127 ,  H04N1/00002 ,  H04N1/00015 ,  H04N1/00029 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/0408 ,  H04N1/0426 ,  H04N1/2307 ,  H04N1/2346 ,  H04N1/40037 ,  H04N1/4005

    摘要： A light beam scanning apparatus in which laser power and spot shape of an emitted laser beam are controlled, has a laser control signal generating part for changing a picture signal to a laser power control signal and a spot shape control signal, a laser power control current generating part which is driven by the laser power control signal, a spot shape control current generating part which is driven by the shape control signal, and a laser beam emission part for emitting a laser beam having a laser power and a spot shape which are controlled by the control signals via a commonly used light wave guiding part, wherein the control signal generating part generates or corrects the control signals based on at least one of the difference between the laser power of a beam to be emitted and a detected laser power, the difference between the spot shape of a beam to be emitted and a detected laser power, a detected temperature at the laser beam emission part, and an effective light emission pixel number.

    摘要翻译： 控制发射激光束的激光功率和斑点形状的光束扫描装置具有激光控制信号产生部分，用于将图像信号改变为激光功率控制信号和光斑形状控制信号，激光功率控制电流 由激光功率控制信号驱动的发光部分，由形状控制信号驱动的光斑形状控制电流产生部分，以及激光束发射部分，用于发射具有被控制的激光光焦度和光斑形状的激光束 通过所述控制信号经由通常使用的光波导部，其中，所述控制信号生成部基于所发射的光束的激光功率与所检测的激光功率的差异中的至少一个来生成或校正所述控制信号， 要发射的光束的光斑形状与检测到的激光功率之间的差异，激光束发射部分处的检测温度和有效发光像素 el号码。

    Electrophotographic image recording apparatus with photoreceptor exposure control
    4.
    发明授权
    Electrophotographic image recording apparatus with photoreceptor exposure control 失效
    具有光感受器曝光控制的电子照相图像记录装置

    公开(公告)号：US5737008A

    公开(公告)日：1998-04-07

    申请号：US698160

    申请日：1996-08-07

    申请人： Shinya Kobayashi ,  Kunio Sato ,  Seiji Maruo ,  Susumu Saito

    发明人： Shinya Kobayashi ,  Kunio Sato ,  Seiji Maruo ,  Susumu Saito

    IPC分类号： B41J2/44 ,  B41J2/47 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  H04N1/113 ,  H04N1/29 ,  H04N1/40 ,  H04N1/21

    CPC分类号： H04N1/40025 ,  B41J2/473 ,  H04N1/295

    摘要： An electrophotographic image recording apparatus that forms an electrostatic latent image so that the uniformly charged surface of a photoreceptor is scanned for its exposure with a beam spot of a light beam generated according to image information, to discharge the surface of the photoreceptor up to a medium potential. The electrophotographic image recording apparatus includes a light beam generator capable of varying an amount of light beam and a light intensity distribution pattern of a beam spot on the surface of the photoreceptor, an intensity distribution pattern controller for controlling the light beam generator according to the image information of peripheral pixels, to vary the intensity distribution pattern of the beam spot on the surface of the photoreceptor, and a light beam output controller for controlling the light beam generator to put the exposure energy on pixels, exposed to the beam spots of intensity distribution patterns, at a predetermined value.

    摘要翻译： 一种电子照相图像记录装置，其形成静电潜像，使得根据图像信息产生的光束的光斑扫描感光体的均匀充电表面以进行曝光，以将感光体的表面排出到介质 潜在。 电子照相图像记录装置包括能够改变感光体表面上的光束的光束量和光束强度分布图案的光束发生器，用于根据图像控制光​​束发生器的强度分布图案控制器 周边像素的信息，以改变感光体表面上的光斑的强度分布图案;以及光束输出控制器，用于控制光束发生器将曝光能量放在像素上，暴露于强度分布的光束点 图案，以预定值。

    Laser printer and light source suitable for the same
    5.
    发明授权
    Laser printer and light source suitable for the same 失效
    激光打印机和光源适合相同

    公开(公告)号：US6091439A

    公开(公告)日：2000-07-18

    申请号：US966193

    申请日：1997-11-07

    申请人： Shinichi Nakatsuka ,  Susumu Saito ,  Akira Arimoto

    发明人： Shinichi Nakatsuka ,  Susumu Saito ,  Akira Arimoto

    IPC分类号： H01S5/042 ,  H01S3/08

    CPC分类号： H01S5/0425 ,  H01S2301/18

    摘要： A laser printer is provided printing with a high precision simply and at a high speed, and the laser printer uses a semiconductor laser which can vary the diameter of the emitted light while the light density is held constant. In the laser printer, laser rays emitted from a semiconductor laser are irradiated onto a photoconductor to vary its surface potential to produce a charge pattern particles adhere, and printing is performed by transferring the changed particles to a printing object. The semiconductor laser has a plurality of waveguide type resonators, the emitted beams of the resonators having a spatial superposition, and light emission is possible so that the emitted beams of the resonators having a spatial superposition with respect to each other among the resonators of the semiconductor laser are not substantially superimposed in time.

    摘要翻译： 提供了一种激光打印机，其简单且高速地以高精度进行打印，并且激光打印机使用半导体激光器，其可以在光密度保持恒定的同时改变发射光的直径。 在激光打印机中，将从半导体激光器发射的激光照射到光电导体上以改变其表面电位以产生电荷图案颗粒粘附，并且通过将改变的颗粒转印到印刷对象来进行印刷。 半导体激光器具有多个波导型谐振器，发射的谐振器的光束具有空间叠加，并且发光是可能的，使得谐振器的发射光束在半导体的谐振器之间具有相对于彼此的空间叠加 激光器在时间上基本上没有重叠。

    Optical recording apparatus
    6.
    发明授权
    Optical recording apparatus 失效
    光记录装置

    公开(公告)号：US5592207A

    公开(公告)日：1997-01-07

    申请号：US945799

    申请日：1992-09-16

    申请人： Shinya Kobayashi ,  Akira Arimoto ,  Hiroo Fujisaki ,  Susumu Saito

    发明人： Shinya Kobayashi ,  Akira Arimoto ,  Hiroo Fujisaki ,  Susumu Saito

    IPC分类号： B41J2/44 ,  B41J2/47 ,  B41J2/505 ,  G02B26/10 ,  G03G15/01 ,  G03G15/04 ,  G06K15/12 ,  H04N1/23 ,  G01D15/14

    CPC分类号： B41J2/5056 ,  B41J2/471 ,  G06K15/1228

    摘要： A laser printer can record high definition and high quality images without requiring any increase of electrical and mechanical design precision for increasing a scanning line density thereof. The laser beam is deflected in a primary scanning direction and a subsidiary scanning direction. With such scanning, an artificial scanning line along an edge of a recording image can be established for accurately recording an oblique line, a curved line, a barbel portion of a character, a half-tone image or so forth.

    摘要翻译： 激光打印机可以记录高清晰度和高质量的图像，而不需要增加电气和机械设计精度以增加其扫描线密度。 激光束在主扫描方向和副扫描方向上偏转。 通过这样的扫描，可以建立沿着记录图像的边缘的人造扫描线，以准确记录字符的斜线，曲线，棒形部分，半色调图像等。

    Semiconductor laser array
    7.
    发明授权
    Semiconductor laser array 失效
    半导体激光阵列

    公开(公告)号：US06829265B2

    公开(公告)日：2004-12-07

    申请号：US10145022

    申请日：2002-05-15

    申请人： Shinichi Nakatsuka ,  Susumu Saito ,  Junshin Sakamoto ,  Kazuo Sakaki ,  Masahide Tokuda

    发明人： Shinichi Nakatsuka ,  Susumu Saito ,  Junshin Sakamoto ,  Kazuo Sakaki ,  Masahide Tokuda

    IPC分类号： H01S304

    CPC分类号： H01S5/4031 ,  H01L2224/13 ,  H01S5/0224 ,  H01S5/02272 ,  H01S5/02276

    摘要： The subject of the disclosed art is to prevent a short circuit between plural electrodes caused by soldering in the assembling process for a semiconductor laser element. The constitution for improving the subject is as follows. A semiconductor laser device comprises a semiconductor laser chip having a first electrode and a laser sustaining material, in which the laser sustaining material has electrodes and solder layers connected electrically therewith on the surface where the semiconductor laser chip is mounted, the first electrode of the semiconductor laser chip is connected with the solder layer of the laser sustaining material and at least the solder layer of the laser sustaining material extends from at least one end face in the longitudinal direction of an optical resonator of the semiconductor laser chip to the outside of the optical resonator.

    摘要翻译： 所公开的技术的主题是为了防止在半导体激光元件的组装过程中由焊接引起的多个电极之间的短路。 改进主题的宪法如下。 半导体激光器件包括具有第一电极和激光维持材料的半导体激光器芯片，其中激光维持材料具有在其上安装半导体激光器芯片的表面上与其电连接的电极和焊料层，半导体的第一电极 激光芯片与激光维持材料的焊料层连接，并且至少激光维持材料的焊料层从半导体激光器芯片的光学谐振器的纵向方向上的至少一个端面延伸到光学器件的外部 谐振器。

    Driving system for a semiconductor laser device
    9.
    发明授权
    Driving system for a semiconductor laser device 失效
    半导体激光器驱动系统

    公开(公告)号：US07206329B2

    公开(公告)日：2007-04-17

    申请号：US10871280

    申请日：2004-06-21

    申请人： Shinichi Nakatsuka ,  Jyunshin Sakamoto ,  Hiroshi Inenaga ,  Susumu Saito

    发明人： Shinichi Nakatsuka ,  Jyunshin Sakamoto ,  Hiroshi Inenaga ,  Susumu Saito

    IPC分类号： H01S3/00

    CPC分类号： B82Y20/00 ,  G06K15/1209 ,  H01S5/042 ,  H01S5/06808 ,  H01S5/2206 ,  H01S5/2231 ,  H01S5/305 ,  H01S5/3095 ,  H01S5/34326 ,  H01S5/34333 ,  H01S5/34353 ,  H01S5/3436 ,  H01S5/4031

    摘要： When a semiconductor laser is energized, a virtual junction temperature rises to reduce a threshold current, which fluctuates a light output by the unit of a several microseconds, thereby causing printing irregularity. An object of the invention is to prevent the fluctuation in light output occurring due to the temperature change caused by the energization of the semiconductor laser with a simple circuit structure and under the driving condition of a small bias current. A constant voltage driving is performed with a circuit or device having negative resistance characteristics being arranged in series with the semiconductor laser. Thus, the reduction in light output of the semiconductor laser due to the temperature rise is compensated for by an increase in driving current thanks to a reduction in rising voltage of current/voltage characteristics.

    摘要翻译： 当半导体激光器通电时，虚拟结温度上升以减小阈值电流，其使光输出以几微秒为单位波动，从而导致印刷不规则。 本发明的目的是为了防止由于由简单的电路结构的半导体激光器的激励引起的温度变化和在小的偏置电流的驱动条件下产生的光输出的波动。 使用具有负电阻特性的电路或器件与半导体激光器串联布置来执行恒定电压驱动。 因此，由于电流/电压特性的上升电压的降低，由于温度升高导致的半导体激光器的光输出的减少被驱动电流的增加所补偿。

    Laser beam scanning apparatus for scanning a laser beam obtained by composing a plurality of beams
    10.
    发明授权
    Laser beam scanning apparatus for scanning a laser beam obtained by composing a plurality of beams 失效
    用于扫描通过组合多个光束而获得的激光束的激光束扫描装置

    公开(公告)号：US5233188A

    公开(公告)日：1993-08-03

    申请号：US737660

    申请日：1991-07-30

    申请人： Akira Arimoto ,  Susumu Saito ,  Takeshi Mochizuki

    发明人： Akira Arimoto ,  Susumu Saito ,  Takeshi Mochizuki

    IPC分类号： B41J2/47 ,  H04N1/113

    CPC分类号： H04N1/0411 ,  B41J2/473 ,  H04N1/0443 ,  H04N1/0446 ,  H04N1/1135

    摘要： In a laser beam scanning apparatus, first and second laser beam emitters emit a laser beam polarized in a specific direction and a laser beam polarized in the direction orthogonal with this specific direction. A prism passes a laser beam emitted from the first laser beam emitter but reflects a laser beam emitted from the second laser beam emitter, and amalgamates two laser beams emitted from the first and second laser beam emitters in almost the same direction. A rotating polygonal mirror and a scanning lens simultaneously scan on a scanned plane two laser beams amalgamated by the prism. A 1/4 wavelength plate is inserted between the rotating polygonal mirror and the prism to change the laser beam from the prism from a linearly polarized state to a circularly polarized state. By the above arrangement, a difference of reflection factors between two laser beams incident to the rotating polygonal mirror can be eliminated so that two uniform laser beams can be scanned at the same time.

    摘要翻译： 在激光束扫描装置中，第一和第二激光束发射器发射沿特定方向偏振的激光束和沿与该特定方向正交的方向偏振的激光束。 棱镜通过从第一激光束发射器发射的激光束，但是反射从第二激光束发射器发射的激光束，并且将从第一和第二激光束发射器发射的两个激光束以几乎相同的方向合并。 旋转多面镜和扫描透镜在扫描平面上同时扫描由棱镜合并的两个激光束。 将1/4波长板插入在旋转多面镜和棱镜之间，以将来自棱镜的激光束从线偏振状态改变为圆偏振状态。 通过上述布置，可以消除入射到旋转多面镜的两个激光束之间的反射因子的差异，从而可以同时扫描两个均匀的激光束。