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1. 发明专利

JP2015031623A 変位測定装置および変位測定方法および移動体搬送装置および画像形成装置有权
标题翻译：位移测量装置，位移测量方法，移动体传送装置和图像形成装置
公开(公告)号：JP2015031623A
公开(公告)日：2015-02-16
申请号：JP2013162199
申请日：2013-08-05
申请人：株式会社リコー , Ricoh Co Ltd
发明人： NIHEI YASUHIRO , MASUDA KOJI , KUDO KOICHI , TAKAURA ATSUSHI , UEDA TAKESHI , AMADA MIGAKU , TAMURA ASATO
IPC分类号： G01B11/00 , G01P3/36 , G03G15/08
摘要：【課題】レーザ光源、動的被検面、撮像センサの相互の位置関係の精度要求を緩和でき、且つ、高精度の変位測定が可能な変位測定装置の実現を課題とする。【解決手段】スペックルパターンを利用して、動的被検面の移動距離および移動速度の少なくとも一方を測定する変位測定装置であって、スペックルパターンを撮像する撮像センサ52は、その受光面52aの所望の面積領域の画像データを出力可能であり、撮像センサ52から出力される2次元のスペックルパターン全体の画像データを用い、受光面上に、変位測定に用いられる測定用部分領域を特定するエリア検出部53と、エリア検出部により特定された測定用部分領域から得られるスペックルパターン部分の画像データを用いて、動的被検面の移動距離および移動速度の少なくとも一方を演算する演算部54と、を有することを特徴とする。【選択図】図1
摘要翻译：要解决的问题：提供一种位移测量装置，其被配置为减轻对激光源，动态检查表面和成像传感器之间的位置关系的要求，并且能够进行精确的位移测量。解决方案：位移测量装置至少测量通过使用斑点图案，动态检查表面的移动距离和移动速度之一。用于对斑点图案进行成像的成像传感器52输出受光面52a的期望区域区域的图像数据。位移测量装置包括：区域检测部53，其通过使用从成像输出的二维散斑图案的整体上的图像数据来指定在光接收表面上用于位移测量的测量部分区域传感器52; 以及计算部54，其通过使用从由区域检测部指定的测量部分区域获得的斑纹图案部分的图像数据来计算动态检查面的移动距离和移动速度中的至少一个。

2. 发明专利

JP2012088522A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2012088522A
公开(公告)日：2012-05-10
申请号：JP2010235058
申请日：2010-10-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IWATA MUNEO , ISHIDA MASAAKI , NIHEI YASUHIRO
IPC分类号： G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner capable of performing an optical scanning with high accuracy.SOLUTION: A scanning controller of an optical scanner obtains, at every predetermined timing and at each station, a reference pattern for suppressing density variation in a sub-scanning direction and a light emission power correction equation for suppressing the density variation in a main scanning direction based on output signals from three optical sensors and an output signal from a home position sensor corresponding thereto. The scanning controller further generates a first light quantity correction signal and a second light quantity correction signal and corrects a driving signal of each light emission section at the each station by using the reference pattern and the light emission power correction equation when an image is formed.
摘要翻译：要解决的问题：提供能够以高精度执行光学扫描的光学扫描仪。解决方案：光学扫描仪的扫描控制器在每个预定定时和每个站处获得用于抑制副扫描方向上的浓度变化的参考图案和用于抑制副扫描方向上的浓度变化的发光功率校正方程基于来自三个光学传感器的输出信号的主扫描方向和对应于其的原位传感器的输出信号。扫描控制器还产生第一光量校正信号和第二光量校正信号，并且当形成图像时，通过使用参考图案和发光功率校正方程来校正每个站处的每个发光部分的驱动信号。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2010048853A Method of measurement, optical scanner, and image forming apparatus 审中-公开
标题翻译：测量方法，光学扫描仪和图像形成装置
公开(公告)号：JP2010048853A
公开(公告)日：2010-03-04
申请号：JP2008210376
申请日：2008-08-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NIHEI YASUHIRO , ISHIDA MASAAKI , OMORI JUNJI
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
CPC分类号： B41J2/473
摘要： PROBLEM TO BE SOLVED: To measure the shift amount of write starting timing in a plurality of scanning lines in real time and with high precision. SOLUTION: A write control circuit 219 includes: a synchronous lighting control circuit 219c which selects a front end synchronous light emission part and a rear end synchronous light emission part, and generates a plurality of synchronous lighting signals for lighting the selected light emission parts; a measurement circuit 219d for two points, which measures the time interval of rising time of a front end synchronous detection signal and the rising time of a rear end synchronous detection signal; and a correction data generation circuit 219e which individually generates correction data in the respective light emission parts on the basis of the measured results or the like at the measurement circuit 219d for two points. Thus, the shift amount of the beginning times of write of the light emission parts ch2 to ch16 with respect to the light emission part ch1 are individually obtained in real time and with higher accuracy than the conventional art as the correction data with a "phase difference corresponding time" as a unit. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：以高精度实时地测量多条扫描线中的写入开始定时的偏移量。解决方案：写入控制电路219包括：同步点亮控制电路219c，其选择前端同步发光部分和后端同步发光部分，并且产生用于点亮所选择的发光的多个同步点亮信号部分; 用于测量前端同步检测信号的上升时间的时间间隔和后端同步检测信号的上升时间的两点的测量电路219d; 以及校正数据生成电路219e，其基于测量电路219d的测量结果等分别在各个发光部分中生成校正数据两点。因此，相对于发光部ch1，发光部ch2〜ch16的写入开始时间的偏移量，与现有技术相比，分别以实时，高精度的方式单独获得，作为具有“相位差”的校正数据对应时间“为单位。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2008310281A Optical scan apparatus and image formation apparatus 审中-公开
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：JP2008310281A
公开(公告)日：2008-12-25
申请号：JP2008009468
申请日：2008-01-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI SEIZO , MIFUNE HIROYASU , HAYASHI YOSHIAKI , NIHEI YASUHIRO
IPC分类号： G02B26/10 , B41J2/44 , G02B26/12 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To allow VCSELs (vertical cavity surface emitting lasers) to equally share thermal load of the light source due to the emission of the light beams and to suppress thermal deterioration of the light source. SOLUTION: The optical scan apparatus sequentially selects, for each scanning, the VCSELs of the light source 10 to emit in unit of column from the VCSEL 1,1 to VCSEL 4,1 in the first column to the VCSEL 1,10 to VCSEL 4,10 in the tenth column, in order to obtain the synchronous signals for scanning the write region. This allows the 40 VCSELs to equally share thermal load of the light source 10 due to the emission of the light beams and accordingly makes it possible to lengthen the life of the light source 10. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了允许VCSEL（垂直腔表面发射激光器）由于光束的发射而平均地共享光源的热负荷并且抑制光源的热劣化。解决方案：光扫描设备为每次扫描顺序地选择光源10的VCSEL以从VCSEL 1,1 到VCSEL 4,1的列为单位发射在第10列中的VCSEL 1,10 到VCSEL 4,10 ，以获得用于扫描写入区域的同步信号。这允许40个VCSEL由于光束的发射而平均地共享光源10的热负载，因此使得可以延长光源10的寿命。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2008227129A Semiconductor laser controller, optical scanner, and image forming device 审中-公开
标题翻译：半导体激光控制器，光学扫描仪和图像形成装置
公开(公告)号：JP2008227129A
公开(公告)日：2008-09-25
申请号：JP2007063130
申请日：2007-03-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OMORI JUNJI , ISHIDA MASAAKI , NIHEI YASUHIRO , TANABE JUN
IPC分类号： H01S5/062 , B41J2/44
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor laser controller that executes high-precision optical output control of a semiconductor laser even when there is a significant difference between a detection signal level with respect to one semiconductor laser and a detection signal level with respect to a plurality of semiconductor lasers in a configuration using one optical detector on which multibeams from semiconductor lasers constituting the multibeams are made incident.
SOLUTION: The semiconductor laser controller has an optical detection means PD, which detects each light amount from a plurality of semiconductor lasers LD1-LD4 constituting multibeams as each light-emission level, detection resistors (21, 22, 23 and 24) for converting a detection current of the optical detection means PD into a detection voltage, and a light-amount control means that controls each light-emission level of a plurality of the semiconductor lasers LD1-LD4 on the basis of the detection voltage. The controller further has a switching means 20 for switching each resistance value of each detection resistor (21, 22, 23 and 24).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使在相对于一个半导体激光器的检测信号电平与检测信号电平之间存在显着差异的情况下，也提供半导体激光器的高精度光输出控制的半导体激光控制器，相对于使用一个光学检测器的配置中的多个半导体激光器，其中来自构成多光束的来自半导体激光器的多光束入射。解决方案：半导体激光控制器具有光检测装置PD，其从构成多光束的多个半导体激光器LD1-LD4检测每个光量作为每个发光电平，检测电阻器（21,22,23和24）用于将光学检测装置PD的检测电流转换为检测电压;以及光量控制装置，其基于检测电压来控制多个半导体激光器LD1-LD4的每个发光电平。控制器还具有用于切换每个检测电阻器（21,22,23和24）的每个电阻值的开关装置20。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008213246A Light source driving apparatus, optical scanning apparatus and image forming apparatus 有权
标题翻译：光源驱动装置，光学扫描装置和图像形成装置
公开(公告)号：JP2008213246A
公开(公告)日：2008-09-18
申请号：JP2007052254
申请日：2007-03-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OMORI JUNJI , ISHIDA MASAAKI , NIHEI YASUHIRO , TANABE JUN
IPC分类号： B41J2/44 , G02B26/10 , G02B26/12 , H04N1/113
CPC分类号： B41J2/45
摘要： PROBLEM TO BE SOLVED: To equalize starting characteristics of a plurality of light emitting bodies each other. SOLUTION: A light source driving circuit has a light source driver 413a for loading a driving voltage Vd to a base of a transistor TR added to each light emitting part based on modulation data from a writing controlling circuit, and an overshoot electric current-forming circuit 413b containing an RC circuit by a combination of a resistor R1, a resistor R2, a capacitor C and a variable capacity diode Cv, and adds the overshoot electric current to a light emitting level electric current specified in accordance with the amount of light of light emission. It is possible thereby to equalize the starting characteristics of respective light emitting parts each other. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了均衡多个发光体的起始特性。解决方案：光源驱动电路具有光源驱动器413a，用于基于来自写入控制电路的调制数据将驱动电压Vd加载到添加到每个发光部分的晶体管TR的基极，并且过冲电流形成电路413b，其通过电阻器R1，电阻器R2，电容器C和可变容量二极管Cv的组合包含RC电路，并且将过冲电流加到根据光发射。从而能够使各个发光部的起动特性相等。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008040088A Optical scanner, optical scanning method, image forming apparatus, color image forming apparatus, program, and recording medium 有权
标题翻译：光学扫描仪，光学扫描方法，图像形成装置，彩色图像形成装置，程序和记录介质
公开(公告)号：JP2008040088A
公开(公告)日：2008-02-21
申请号：JP2006213445
申请日：2006-08-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIDA MASAAKI , NIHEI YASUHIRO , OMORI JUNJI , TANABE JUN
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
CPC分类号： H04N1/40037 , G06K15/1219 , G06K15/1261 , H04N1/0473 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/02439 , H04N2201/0471 , H04N2201/04734 , H04N2201/04744 , H04N2201/04787 , H04N2201/04794
摘要： PROBLEM TO BE SOLVED: To achieve accurate positional correction for pixels in a subscanning direction and to highly accurately correct an optical system or mechanical scanning line bend. SOLUTION: An optical scanner is configured to form one pixel with the whole m light sources among the n light sources (n≥2, n≥m≥2) arranged in different positions at least in the subscanning direction. A light source drive control means is provided which switches a light emitting source in the manner that one pixel shifts in a prescribed direction in the subscanning direction with a shift quantity of the same length as that of a pitch of one light source, at a certain image height in the main scanning direction. The light source drive control means switches the light emitting source at a different position in the main scanning direction for pixels adjacent in the subscanning direction. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了对副扫描方向的像素进行精确的位置校正，并高精度地校正光学系统或机械扫描线弯曲。解决方案：光学扫描器被配置为在至少在副扫描方向上排列在不同位置的n个光源（n≥2，n≥m≥2）中形成具有整个m个光源的一个像素。提供了一种光源驱动控制装置，其以一个像素在副扫描方向上以规定方向移位的方式以一个光源的间距相同长度的移位量，以一定的方式切换发光源图像高度在主扫描方向。光源驱动控制装置将发光源在副扫描方向上相邻的像素的主扫描方向上的不同位置切换。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2007203739A Method for forming pixel clock/pixel clock-forming apparatus/optical writing unit/image-forming apparatus 有权
标题翻译：形成像素时钟/像素时钟装置/光学写入单元/图像形成装置的方法
公开(公告)号：JP2007203739A
公开(公告)日：2007-08-16
申请号：JP2007062520
申请日：2007-03-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OMORI JUNJI , ISHIDA MASAAKI , NIHEI YASUHIRO
IPC分类号： B41J2/44 , G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To allow a highly-accurate correction of a main-scanning dot-position shift and allow high-quality images to be obtained by suppressing the occurrence of images with vertical lines due to the phase correction of a pixel clock.
SOLUTION: The phase correction of a pixel clock is carried out only to a specific pixel clock in a data region composed of a plurality of continuous pixel clocks by the timing of clock signals from a high-frequency clock generation means. In addition, the timing to start correction is changed for each of the data regions having a different time series.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了允许主扫描点位置偏移的高精度校正，并且由于像素的相位校正，通过抑制具有垂直线的图像的出现来获得高质量图像时钟。解决方案：通过来自高频时钟产生装置的时钟信号的定时，像素时钟的相位校正仅对由多个连续像素时钟组成的数据区域中的特定像素时钟进行。此外，针对具有不同时间序列的每个数据区域改变开始校正的定时。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2007156366A Optical scanner and image forming apparatus 有权
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：JP2007156366A
公开(公告)日：2007-06-21
申请号：JP2005355540
申请日：2005-12-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIDA MASAAKI , NIHEI YASUHIRO , OMORI JUNJI
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner in which the position of a light beam on a face to be scanned in a subscanning direction is accurately detected.
SOLUTION: The optical scanner is provided with: light source units (250a to 250d) each of which has thirty-six light emitting parts arranged two-dimensionally; and light detecting sensors (302a to 302d, 303a to 303d) which detect a plurality of light beams emitted from six light emitting parts arranged in dir_sub direction and five light emitting parts arranged in a direction which is different from both of the dir_sub direction and dir_main direction, among the thirty-six light emitting parts, and deflected with a polygon mirror 213.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学扫描器，其中准确检测在副扫描方向上待扫描的面上的光束的位置。解决方案：光学扫描器具有：光源单元（250a至250d），每个光源单元具有二维布置的三十六个发光部分; 以及光检测传感器（302a〜302d，303a〜303d），其检测从沿dir_sub方向排列的六个发光部件发射的多个光束和沿与dir_sub方向和dir_main两者不同的方向布置的五个发光部件方向，在三十六个发光部分之间，并用多面镜213偏转。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007121347A Optical scanner and image forming apparatus 有权
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：JP2007121347A
公开(公告)日：2007-05-17
申请号：JP2005309244
申请日：2005-10-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIDA MASAAKI , NIHEI YASUHIRO , OMORI JUNJI , KOZASA MADOKA
IPC分类号： G02B26/10 , B41J2/44 , H04N1/04 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner in which light is accurately scanned with respect to an object to be scanned without causing a high cost.
SOLUTION: A light source unit 801 includes: twelve main light sources that are two-dimensionally arranged in a dir_main direction and a dir_sub direction, respectively; and nine sub light sources that are arranged between rows of the main light sources aligned in the dir_main direction. A modulated data generating circuit 30 shifts an image formed on a photoreceptor drum in a main scanning direction by controlling two main light sources which are adjacent to each other in the dir_main direction, and shifts the image formed on the photoreceptor drum in a sub scanning direction by controlling the main light source and a sub light source which are adjacent to each other.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学扫描仪，其中相对于待扫描的物体准确地扫描光，而不会导致高成本。解决方案：光源单元801包括：二维分布在二维分布方向和二向方向上的十二个主光源; 以及配置在主光源的行之间的9个子光源，其以方向方向对准。调制数据生成电路30通过控制在dir_main方向上彼此相邻的两个主光源来移动在主扫描方向上形成在感光鼓上的图像，并且将在感光鼓上形成的图像沿副扫描方向通过控制彼此相邻的主光源和副光源。版权所有（C）2007，JPO＆INPIT

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