公开(公告)号：US4729617A

公开(公告)日：1988-03-08

申请号：US855703

申请日：1986-04-25

申请人： Kazuyuki Shimada ,  Isamu Shibata ,  Susumu Imakawa

发明人： Kazuyuki Shimada ,  Isamu Shibata ,  Susumu Imakawa

IPC分类号： H04N1/113 ,  G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  H04N1/053 ,  H04N1/12

CPC分类号： H04N1/053 ,  G02B26/127 ,  G02B27/0031 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04772

摘要： A scanning clock generating device for an optical scanner which scans a selected surface by a light beam to write optical information or read image information. The scanner scans the surface by a light beam which is deflected at a constant or a non-constant angular velocity and without resorting to an F-theta lens. The scanning clock generating device generates a scanning clock the frequency of which is continuously variable responsive to changes of scanning velocity on the surface to be scanned.

摘要翻译： 一种用于光学扫描仪的扫描时钟产生装置，其通过光束扫描所选择的表面以写入光学信息或读取图像信息。 扫描仪通过光束扫描表面，该光束以恒定或非恒定角速度偏转，而不依赖于F-theta透镜。 扫描时钟产生装置响应于待扫描表面上的扫描速度的变化产生频率连续变化的扫描时钟。

公开(公告)号：US4717925A

公开(公告)日：1988-01-05

申请号：US848466

申请日：1986-04-07

申请人： Isamu Shibata ,  Kazuyuki Shimada

发明人： Isamu Shibata ,  Kazuyuki Shimada

IPC分类号： G02B26/10 ,  G06K15/12 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  G01D9/42 ,  G01D15/14

CPC分类号： H04N1/053 ,  G06K15/1214 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04772

摘要： An optical scanner for use with a laser printer, a laser display or the like includes an optical deflector for directly scanning a photoconductive drum with a beam which is emitted from a semiconductor laser and to be focused as a minute spot on the drum. The frequency of an image scanning clock is continuously varied as an approximation to scanning speeds of a spot which is produced by the deflector. The intensity of the beam is controlled by an intensity control circuit.

摘要翻译： 用于激光打印机，激光显示器等的光学扫描仪包括用于使用从半导体激光器发射的光束直接扫描感光鼓的光偏转器，并将其作为微小点聚焦在感光鼓上。 图像扫描时钟的频率作为近似于由偏转器产生的斑点的扫描速度而连续变化。 光束的强度由强度控制电路控制。

公开(公告)号：US4663760A

公开(公告)日：1987-05-05

申请号：US821069

申请日：1986-01-21

申请人： Kazuyuki Shimada ,  Isamu Shibata

发明人： Kazuyuki Shimada ,  Isamu Shibata

IPC分类号： H01S5/042 ,  B41J2/44 ,  G03G15/04 ,  G03G15/043 ,  G06K15/12 ,  H01S5/06 ,  H01S5/0683 ,  H04N1/23 ,  H01S3/13

CPC分类号： H01S5/0683 ,  G06K15/1214

摘要： A semiconductor laser output intensity control device is provided in a laser beam scanning system, such as a laser printer. A laser beam emitted from a semiconductor laser is modulated by image information and scanned across a photosensitive member for forming an image thereon. The present output intensity control device employs an up/down counter whose count determines the level of driving current to be applied to a laser driver which drives the semiconductor laser. The up/down counter changes its count either up or down depending on the magnitude of the output intensity of the laser beam as compared with a reference level. The present device includes a control circuit which prevents the power setting operation of the laser from taking place during a scanning time period in which the photosensitive member is scanned by the laser beam.

摘要翻译： 半导体激光输出强度控制装置设置在诸如激光打印机的激光束扫描系统中。 从半导体激光器发射的激光束被图像信息调制，并在感光部件上扫描以在其上形成图像。 本输出强度控制装置采用计数器，该计数器的计数确定要施加到驱动半导体激光器的激光驱动器的驱动电流的电平。 升/降计数器根据与参考电平相比的激光束的输出强度的大小来上下改变其计数。 本装置包括控制电路，其防止在激光束扫描感光部件的扫描时间段期间发生激光的功率设定操作。

公开(公告)号：US4856011A

公开(公告)日：1989-08-08

申请号：US270474

申请日：1988-11-08

申请人： Kazuyuki Shimada ,  Isamu Shibata

发明人： Kazuyuki Shimada ,  Isamu Shibata

IPC分类号： G11B7/125 ,  H01S5/042 ,  H01S5/0683

CPC分类号： G11B7/126 ,  H01S5/042 ,  H01S5/0683 ,  H01S5/0427

摘要： A system for controlling the operation of a semiconductor laser is provided. In one aspect of the present invention, a switching element, which is turned on and off in accordance with a signal modulated with image information, is connected in series with the semiconductor laser for controlling the operation thereof. In another aspect of the present invention, a semiconductor laser control system includes a photodetector for detecting the intensity of a laser beam emitted from the laser, a comparator for comparing the detected intensity with a predetermined refence intensity, an up/down counter which changes its count depending on the result of the comparison at the comparator, and a laser driver which supplies a driving current to the laser as modified by the count of the counter. A reset circuit is provided to reset the counter when at least the laser driver is powered up with a predetermined supply voltage. In addition, the laser driver is so structured that the supply of the driving current to the laser is disconnected for a predetermined time period after the power up thereof.

摘要翻译： 提供了一种用于控制半导体激光器的操作的系统。 在本发明的一个方面中，根据用图像信息调制的信号而导通和断开的开关元件与用于控制其操作的半导体激光器串联连接。 在本发明的另一方面，一种半导体激光器控制系统包括用于检测从激光器发射的激光束的强度的光电检测器，用于将检测到的强度与预定的反射强度进行比较的比较器，改变其 根据比较器的比较结果进行计数，以及激光驱动器，其通过计数器的计数对激光器提供驱动电流。 当至少激光驱动器以预定的电源电压供电时，提供复位电路以复位计数器。 此外，激光驱动器的结构使得在上电之后预定的时间段内，向激光器提供的驱动电流被断开。

公开(公告)号：US4763334A

公开(公告)日：1988-08-09

申请号：US821683

申请日：1986-01-23

申请人： Kazuyuki Shimada ,  Isamu Shibata ,  Yutaka Kaneko ,  Susumu Imagawa

发明人： Kazuyuki Shimada ,  Isamu Shibata ,  Yutaka Kaneko ,  Susumu Imagawa

IPC分类号： G02B6/42 ,  H01S5/026 ,  H01S5/0683 ,  H01S3/13

CPC分类号： H01S5/0683 ,  H01S5/0264

摘要： A laser beam emitting apparatus includes a semiconductor laser, a photodiode for detecting the intensity of the laser beam, an amplifier for amplifying the detection signal from the photodiode, and a variable resistor connected to the amplifier for adjusting the gain of the amplifier. In one embodiment, these elements are provided in a unit structure so that the adjustment of the gain of the amplifier can be carried out in advance. In another embodiment, a collimating lens for collimating the laser beam emitted from the laser is also provided in the same unit. In another embodiment, a single-piece support is provided to support the semiconductor laser, the collimating lens, and an aperture plate formed with an aperture for shaping the collimated laser beam. As a modification, the single-piece support can be made dual in structure while maintaining the structural integrity of the support.

摘要翻译： 激光束发射装置包括半导体激光器，用于检测激光束强度的光电二极管，用于放大来自光电二极管的检测信号的放大器，以及连接到放大器的可变电阻器，用于调节放大器的增益。 在一个实施例中，这些元件以单元结构提供，使得可以预先执行放大器的增益的调节。 在另一个实施例中，用于准直激光发射的激光束的准直透镜也设置在同一单元中。 在另一个实施例中，提供单件式支撑件以支撑半导体激光器，准直透镜以及形成有用于成形准直激光束的孔的孔径板。 作为修改，单件支撑件可以在结构上是双重的，同时保持支撑件的结构完整性。

公开(公告)号：US5326678A

公开(公告)日：1994-07-05

申请号：US873667

申请日：1992-04-23

申请人： Akio Kojima ,  Takeo Yamaguchi ,  Masao Yoshikawa ,  Isamu Shibata ,  Kaoru Teramura

发明人： Akio Kojima ,  Takeo Yamaguchi ,  Masao Yoshikawa ,  Isamu Shibata ,  Kaoru Teramura

IPC分类号： G11B7/0045 ,  G11B7/245 ,  G11B7/246 ,  G11B7/248 ,  G11B7/257 ,  G11B11/08 ,  G11B7/24

CPC分类号： G11B7/2492 ,  G11B11/08 ,  G11B7/0045 ,  G11B7/248 ,  G11B2007/25706 ,  G11B2007/25708 ,  G11B2007/25715 ,  G11B7/245 ,  G11B7/246 ,  G11B7/2472 ,  G11B7/252 ,  G11B7/2531 ,  G11B7/256 ,  G11B7/2585 ,  Y10S430/146

摘要： A high dielectric polymeric optical recording medium for recording information by heating the portions of the recording medium corresponding to the information to be recorded by being exposed to a beam of light, followed by the application of a reverse electric field to the recording medium, thereby selectively reversing the polarity of the heated portions in the recording medium, is disclosed, which comprises a high dielectric polymeric recording layer containing a high dielectric polymeric composition comprising a high dielectric polymeric material and a nonionic dye serving as a light-absorption agent which is compatible with or dispersible in the high dielectric polymeric material.

摘要翻译： 一种高介电聚合物光学记录介质，用于通过对曝光于光束的要记录的信息对应的记录介质的部分进行加热记录信息，随后向记录介质施加反向电场，从而选择性地 反转记录介质中加热部分的极性，其包括含有高介电聚合物组合物的高介电聚合物记录层，该高介电聚合物组合物包含高介电聚合物材料和用作光吸收剂的非离子染料，其与 或分散在高介电聚合物材料中。

公开(公告)号：US5059774A

公开(公告)日：1991-10-22

申请号：US258693

申请日：1988-10-17

申请人： Nobuaki Kubo ,  Isamu Shibata

发明人： Nobuaki Kubo ,  Isamu Shibata

IPC分类号： G06K13/063 ,  G06K19/04 ,  G11B7/0033 ,  G11B7/085 ,  G11B7/09

CPC分类号： G11B7/0945 ,  G06K13/063 ,  G06K19/04 ,  G11B7/0033 ,  G11B7/08517

摘要： An apparatus for handling an optical card which is generally rectangular in shape and formed with a first plurality of circular, concentric recording tracks and a second plurality of arc-shaped, concentric recording tracks in each of a pair of sectors defined by a pair of hypothetical diagonal lines of the card and located outside of the first plurality of circular, concentric recording tracks. An optical pick-up is moved to a desired track first by a coarse seek operation which uses the difference between a selected count and the count from a linear sensor, and a fine seek operation which uses the sum of a track correspondence voltage and a track error signal.

摘要翻译： 一种用于处理大致矩形的光卡的装置，其形成有一对假想的一对扇区中的每一个扇区中的第一多个圆形同心记录轨道和第二多个弧形同心记录轨道 卡的对角线并且位于第一多个圆形同心记录轨道的外侧。 首先通过使用来自线性传感器的选择的计数和计数之间的差的粗略搜索操作将光学拾取器移动到期望的轨道，以及使用轨道对应电压和轨道的和的精细搜索操作 误差信号。

公开(公告)号：US4618958A

公开(公告)日：1986-10-21

申请号：US699590

申请日：1985-02-08

申请人： Isamu Shibata ,  Yoshiaki Kanmoto

发明人： Isamu Shibata ,  Yoshiaki Kanmoto

IPC分类号： H01S5/0683 ,  H01S3/13

CPC分类号： H01S5/0683

摘要： A device detects the radiating output from a semiconductor laser and compares a detected signal with a reference signal in a comparator. An up/down counter is controlled an output signal from the comparator to supply the semiconductor laser with a current proportional to a count output from the up/down counter. The current supplied to the semiconductor laser is controlled and held so as to equalize the input signals to the comparator at all times.

摘要翻译： 器件检测半导体激光器的辐射输出，并将检测信号与比较器中的参考信号进行比较。 控制来自比较器的输出信号的向上/向下计数器以向与上/下计数器的计数输出成比例的电流供给半导体激光器。 控制并保持提供给半导体激光器的电流，以便始终将输入信号均衡到比较器。

公开(公告)号：US4064443A

公开(公告)日：1977-12-20

申请号：US636996

申请日：1975-12-02

申请人： Isao Yamada ,  Isamu Shibata

发明人： Isao Yamada ,  Isamu Shibata

IPC分类号： H02P7/29 ,  H02P5/00

CPC分类号： H02P7/291 ,  Y10S388/915

摘要： In the control system, the motor is supplied power in the form of a pulse train. The width of each pulse of the pulse train is modulated through the comparison between a reference voltage and the counter e.m.f. of the motor immediately prior to feeding of each pulse of the pulse train into the motor.

摘要翻译： 在控制系统中，电机以脉冲串的形式供电。 脉冲序列的每个脉冲的宽度通过参考电压和计数器之间的比较进行调制。 在将脉冲串的每个脉冲馈送到电动机之前立即进行。

公开(公告)号：US4585297A

公开(公告)日：1986-04-29

申请号：US511677

申请日：1983-07-07

申请人： Iwao Hamaguchi ,  Isamu Shibata

发明人： Iwao Hamaguchi ,  Isamu Shibata

IPC分类号： G02B26/10 ,  G02B26/12 ,  H04N1/113 ,  G02B26/08

CPC分类号： G02B26/122

摘要： A light deflector for use in a laser printer, for example, is composed of a motor having a drive shaft and a light reflecting member such as a rotating multiple-surface mirror or a hologram. The motor is subjected to magnetic field ripples the number of which is equal to a multiple by an integer of the number of light reflecting surfaces of the light reflecting member.

摘要翻译： 例如，用于激光打印机的光偏转器由具有驱动轴和诸如旋转多面反射镜或全息图之类的光反射部件的电机组成。 电动机的数量等于多个反射构件的光反射面的整数的磁场波纹。