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1. 发明专利

JP2014215141A 角度測定装置、調整方法及び画像形成装置の製造方法有权
标题翻译：角度测量装置，调整方法和图像形成装置的制造方法
公开(公告)号：JP2014215141A
公开(公告)日：2014-11-17
申请号：JP2013091900
申请日：2013-04-25
申请人：株式会社リコー , Ricoh Co Ltd
发明人： IMAI SHIGEAKI , TACHIKAWA SHINGO , HAYASHI YOSHIAKI
IPC分类号： G01B11/26 , B41J2/44 , B41J2/45 , B41J2/455 , H04N1/036
CPC分类号： G01B11/26 , H04N1/03
摘要：【課題】測定の準備を簡素化することができる角度測定装置を提供する。【解決手段】光源から射出された光は、光LB1と光LB2に分割され、光LB1は基準物の基準平面に照射され、光LB2は、被検物67の被検面に集光される。基準平面で反射された光LB1は光検出器70で受光され、被検面で反射された光LB2は、結像光学系50で平行光に変換された後、光検出器70で受光される。処理装置は、光検出器70から出力される光LB1及び光LB2の受光位置情報に基づいて、基準平面に対する被検面の傾斜角を求める。【選択図】図23
摘要翻译：要解决的问题：提供一种配置成简化测量准备的角度测量装置。解决方案：从光源发射的光被分成光束LB1和光束LB2，并且照射参考对象的参考平面光束LB1。光束LB2在被检查对象物67的表面上会聚。在基准平面上反射的光束LB1由光电检测器70接收。被检查表面上反射的光束LB2被成像光学系统50转换为平行光，并由光电检测器70接收。处理装置基于从光电检测器70输出的光束LB1和LB2的光接收位置信息，确定待检查表面相对于参考平面的倾斜角度。

2. 发明专利

JP2014174320A 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：JP2014174320A
公开(公告)日：2014-09-22
申请号：JP2013046616
申请日：2013-03-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU KAZUHIRO , HAYASHI YOSHIAKI , MIYATAKE NAOKI , ITAMI YUKIO
IPC分类号： G02B26/12 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a compact optical scanner without reducing image quality.SOLUTION: In orthogonal projection on a plane orthogonal to a rotation axis of an optical deflector, a width of a light flux incident on the optical deflector is smaller than a width of one deflection reflection plane of the optical deflector. A part of the incident light flux is vignetted by the optical deflector when the light flux deflected by the optical deflector travels toward a synchronization detection sensor, travels toward a write start position, and travels toward a write end position. When there is a burr projecting from a plane 1 toward a plane 4 in a boundary between the plane 1 and the plane 4, a rotary polygon mirror rotates so that the light flux from the light source is made incident on the plane 4 to the plane 1.
摘要翻译：要解决的问题：提供一种紧凑的光学扫描仪，而不会降低图像质量。解决方案：在与光学偏转器的旋转轴正交的平面上的正交投影中，入射在光学偏转器上的光束的宽度小于宽度的光偏转器的一个偏转反射面。当由光学偏转器偏转的光束向同步检测传感器行进时，入射光束的一部分被光学偏转器反射，朝向写入开始位置行进，并朝向写入端位置移动。当在平面1和平面4之间的边界处存在从平面1向平面4突出的毛刺时，旋转多面镜旋转，使得来自光源的光束入射到平面4上的平面 1。

3. 发明专利

JP2009075541A Light source device, optical scanner, and image forming apparatus 有权
标题翻译：光源设备，光学扫描仪和图像形成装置
公开(公告)号：JP2009075541A
公开(公告)日：2009-04-09
申请号：JP2008082308
申请日：2008-03-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AMADA MIGAKU , NAKAJIMA TOMOHIRO , HAYASHI YOSHIAKI , KUBO NOBUAKI
IPC分类号： G02B26/12 , B41J2/44 , G02F1/31
摘要： PROBLEM TO BE SOLVED: To precisely position a light source 10, and to maintain a positional relationship between the light source and an optical element at constant. SOLUTION: A surface of the light source 10, specifically, a -y side face of a package 10b, is brought into pressure contact with a bottom wall face of a recess 74b formed in the first holder 74, by biasing a substrate 76 to the first holder 74 by a bias member 78. The light source 10 is thereby positioned with respect to the first holder 74. A positional relationship between the substrate 76 and the first holder 74 is also kept constant by fixing a holding member 77 onto the first holder 74 under the condition where a grasping part grasps the substrate 76. The positional relation between a coupling lens 11 (optical element) supported by the second holder 72 and the light source 10 is thereby maintained at constant as a result thereof. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：精确地定位光源10并且保持光源和光学元件之间的位置关系恒定。解决方案：光源10的表面，具体地说，是封装10b的一个侧面，通过偏压衬底而与形成在第一保持器74中的凹部74b的底壁面压力接触 76通过偏置构件78连接到第一保持器74.光源10因此相对于第一保持器74定位。通过将保持构件77固定到基板76和第一保持器74之间的位置关系也保持恒定第一保持器74在抓握部分抓住基板76的状态下由第二保持器72支撑的耦合透镜11（光学元件）与光源10之间的位置关系由此保持恒定。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008216514A Optical scanning apparatus and image forming apparatus 审中-公开
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：JP2008216514A
公开(公告)日：2008-09-18
申请号：JP2007052215
申请日：2007-03-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUBO NOBUAKI , HAYASHI YOSHIAKI , WATANABE NAOTO , ICHII DAISUKE , NAKAJIMA TOMOHIRO
IPC分类号： G02B26/10 , B41J2/44 , G02B13/00 , G02B13/08 , G02B13/18 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To improve the using efficiency of a light beam without entailing a higher cost of the apparatus.
SOLUTION: The light quantity control of a light source 10 is performed by monitoring the luminous flux not contributing to scanning among the luminous fluxes of the light beam. Thereby, the light quantity control of the light source 10 can be performed without degrading the using efficiency of the light beam contributing to the scanning. Also, the light beam is guided by a protection member 71 to a photodetector 18. Accordingly, the need for using an element, such as a beam splitter, for branching the light beam from the light source 10 is eliminated and the cost reduction of the apparatus is achieved.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提高光束的使用效率，而不需要更高的设备成本。解决方案：光源10的光量控制是通过监视光束的光通量中不利于扫描的光通量进行的。由此，可以在不降低有助于扫描的光束的使用效率的情况下进行光源10的光量控制。此外，光束被保护构件71引导到光电检测器18.因此，消除了使用诸如分束器的元件用于分支来自光源10的光束的需要，并且降低了实现了装置。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2008102487A Optical scanner and image forming apparatus with the same 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：JP2008102487A
公开(公告)日：2008-05-01
申请号：JP2007172230
申请日：2007-06-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAMURA TADASHI , HAYASHI YOSHIAKI , MIYATAKE NAOKI
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner in which an image having excellent quality is formed by uniformizing the beam spot diameters over a whole face to be scanned by adjusting the incident position of a light beam onto an optical deflection face in a main scanning direction. SOLUTION: The laser writing unit 22 of the image forming apparatus includes a light-source device 31 and an image-forming optical system 32. The light-source device 31 includes an adjusting screw 56 for adjusting the orientation of the light beam 59 from a light-source unit 48 being a light source part and an adjusting screw hole 69, a vibrating mirror 85 which deflects the light beam 59 on a deflection plane 95 and reciprocally scans on the face to be scanned in a main scanning direction X. The adjusting screw 56 and the adjusting screw hole 69 are provided on the light-source unit 48 to serve as orientation adjusting units for the radiation position of the light beam 59 from a semiconductor laser 51 of the light-source unit 48 in the main scanning direction X on the deflection plane 95 by adjusting the orientation of the light-source unit 48 in the main scanning direction X, and further make it possible to radiate the light beam 59 on the center of the deflection plane 95. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学扫描仪，其中通过将光束的入射位置调整到光学偏转面上的入射位置，使得通过使待扫描的整个面均匀化束斑直径而形成质量优异的图像主扫描方向。解决方案：图像形成装置的激光写入单元22包括光源装置31和图像形成光学系统32.光源装置31包括用于调节光束的取向的调节螺钉56 59来自作为光源部的光源部48以及调整用螺纹孔69，将偏振平面95上的光束59偏转并沿主扫描方向X往复扫描的被扫描面的振动镜85 调整螺钉56和调节螺纹孔69设置在光源单元48上，用作来自主光源单元48的半导体激光器51的光束59的辐射位置的定向调节单元通过调整光源单元48在主扫描方向X上的取向而在偏转平面95上的扫描方向X，并且还可以将光束59照射在偏转平面95的中心。右：（C）2008，JPO＆INPIT

6. 发明专利

JP2008076562A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008076562A
公开(公告)日：2008-04-03
申请号：JP2006253401
申请日：2006-09-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： WATANABE NAOTO , NIIMI TATSUYA , ISHIDA MASAAKI , HAYASHI YOSHIAKI
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a means which assures a sufficient light quantity with a simple structure with a synchronization detection sensor used in a scanning and focusing optical system.
SOLUTION: The optical scanner has a scanning optical system including at least: a light source 107 which is modulated and driven; a deflector 106 to scan a luminous flux from the light source 107; and a scanning and focusing element 124 to focus the scanned luminous flux onto a face to be scanned; a focusing lens 114 to guide the luminous flux from the light source 107 to the deflector 106; and at least one synchronization detection sensor 140 to synchronize the lighting timing on the face to be scanned provided outside of an image region, wherein the scanning optical system is provided with at least one or more turning back mirrors 132, and the number of the scanning optical system mirrors 132 is larger than that of the synchronization optical system mirrors, thus the light utility efficiency of the scanning optical system is made smaller than that of the synchronization optical system.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种利用在扫描和聚焦光学系统中使用的同步检测传感器以简单结构确保足够的光量的装置。解决方案：光学扫描仪具有扫描光学系统，该扫描光学系统至少包括：被调制和驱动的光源107; 用于扫描来自光源107的光通量的偏转器106; 以及扫描和聚焦元件124，用于将扫描的光束聚焦到待扫描的面上; 用于将来自光源107的光束引导到偏转器106的聚焦透镜114; 以及至少一个同步检测传感器140，用于使提供在图像区域外部的被扫描面上的点亮时序同步，其中扫描光学系统设置有至少一个或多个回转镜132，并且扫描次数光学系统镜132大于同步光学系统镜的光学系统镜132，因此扫描光学系统的光效率比同步光学系统小。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008015210A Optical scanner and image forming 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：JP2008015210A
公开(公告)日：2008-01-24
申请号：JP2006186103
申请日：2006-07-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NAKAMURA TADASHI , HAYASHI YOSHIAKI , MIYATAKE NAOKI
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner in which an image is efficiently formed in both terms of forwarding and reversing scans with writing and further an excellent quality image with little color shift is formed, and to provide an image forming apparatus. SOLUTION: A vibration mirror 106 has an optical path switching means which switches the optical path of a light beam 201 from a light source unit 107 in a subscanning direction, and scans the surface of a photoreceptor 101 being a face to be scanned in the forwarding scan and scans the surface of a photoreceptor 102 being a different face to be scanned in the reversing scan by the switching in the subscanning direction performed by the optical path switching means. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种光学扫描器，其中通过书写在转发和反转两个方面有效地形成图像，并且进一步形成具有很小色移的优质图像，并且提供图像形成装置。解决方案：振动镜106具有光路切换装置，其沿副扫描方向从光源单元107切换光束201的光路，并且扫描作为被扫描的面的感光体101的表面在转发扫描中，通过由光路切换装置执行的副扫描方向的切换，在反转扫描中扫描作为要扫描的不同面的感光体102的表面。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2008003476A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008003476A
公开(公告)日：2008-01-10
申请号：JP2006175285
申请日：2006-06-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HAYASHI YOSHIAKI , OSHIMA KOICHI , NIIMI TATSUYA , OTA KATSUICHI
IPC分类号： G02B26/10 , B41J2/44 , G02B26/12 , G03G15/04 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus having small density irregularity and high gradation property. SOLUTION: The wavelength of a light source is 500 nm or smaller, a scanning optical system is composed of one or more plastic lenses (6 and 7), the condition L0>Le is satisfied, where the sum of the distances in the plastic lenses through which a beam directed to the central image height passes is expressed by L0 (w1+w2), the sum of the distances in the plastic lenses through which a beam directed to the peripheral image height passes is expressed by Le (w3+w4), the beam from the light source is linear polarized light, and the polarized direction of the linear polarized light is substantially parallel to a subscanning direction. In this case, the light utility efficiencies of the scanning lenses 6 and 7 are larger at the peripheral image height than at the central image height. Thus, the light utility efficiency of the surface layer of a photoreceptor 9 is smaller at the peripheral image height than at the central image height, and the both light utility efficiencies are canceled out. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有小密度不规则性和高灰度特性的图像形成装置。解决方案：光源的波长为500nm以下，扫描光学系统由一个或多个塑料透镜（6和7）组成，满足条件L0> Le，其中，指向中央图像高度的光束穿过的塑料透镜由L0（w1 + w2）表示，指向周边图像高度的光束穿过的塑料透镜中的距离之和由Le（w3 + w4），来自光源的光束是线偏振光，线偏振光的偏振方向基本上平行于副扫描方向。在这种情况下，扫描透镜6和7的光效率在周边图像高度比在中央图像高度处更大。因此，感光体9的表层的光效率在周边图像高度比中央图像高度小，并且两个光效率被抵消。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007298685A 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：JP2007298685A
公开(公告)日：2007-11-15
申请号：JP2006125792
申请日：2006-04-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HAYASHI YOSHIAKI , SAKAI KOJI , UEDA TAKESHI , SAISHO KENICHIRO , ICHII DAISUKE
IPC分类号： G02B26/10 , G02B26/12 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner which is inexpensive, has a simple structure, is compatible with a high speed and high density, obtains stable and small beam spots of a plurality of beams despite of temperature variation, obtains a stable pitch of scanning lines of beams and has a small difference in light quantity among multibeams. SOLUTION: The optical scanner has: a plurality of light sources 1 and 1' composed of semiconductor lasers; a deflection means 5 which deflects the plurality of beams from a plurality of light sources; first optical systems 2 to 4 which guide the plurality of beams from the plurality of light sources to the deflection means; and second optical systems 6 and 7 which guide the plurality of beams from the deflection means to a face to be scanned 9, wherein the first optical system has one diffraction face on a second lens 4 and the plurality of beams commonly pass through the diffraction face, thus the difference in light quantity among the plurality of beams, the variation in the scanning pitch among scanning lines of the plurality of beams due to the difference in wavelengths are reduced, and a small diameters of the beam spots of the plurality of beams can be attained. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供廉价的光学扫描仪，具有简单的结构，与高速度和高密度兼容，尽管存在温度变化，但获得了多个光束的稳定和小的光束斑点，获得了光束扫描线的稳定间距，多光束之间的光量差异小。解决方案：光学扫描器具有：由半导体激光器构成的多个光源1和1'; 偏转装置5，其使多个光束从多个光源偏转; 将多个光束从多个光源引导到偏转装置的第一光学系统2至4; 以及第二光学系统6和7，其将多个光束从偏转装置引导到待扫描的面9，其中第一光学系统在第二透镜4上具有一个衍射面，并且多个光束通常通过衍射面因此，多个光束之间的光量差异，由于波长差导致的多个光束的扫描线之间的扫描间距的变化减小，并且多个光束中的光束点的小直径实现。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007233000A Optical scanning device and image forming apparatus 有权
标题翻译：光学扫描装置和图像形成装置
公开(公告)号：JP2007233000A
公开(公告)日：2007-09-13
申请号：JP2006054006
申请日：2006-02-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAKAI KOJI , HAYASHI YOSHIAKI , UEDA TAKESHI
IPC分类号： G02B26/10 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To perform optical scanning by a stable beam spot diameter by reducing variation of the beam spot diameter due to temperature variation in an optical scanning device using a diffraction face.
SOLUTION: The optical scanning device includes: a light source part 1 having a plurality of light emitting parts; a first optical element for guiding the optical beam from the light emitting part to an optical deflector 5; and a second optical element 6 for optically scanning a face to be scanned 8 by condensing a plurality of optical beams deflected by the optical deflector 5 and forming optical spots on the face to be scanned 8. The first optical element is a diffractive optical element 4 of which at least a face is a diffraction face. In a plane including an optical axis of the diffractive optical element 4, when an incident angle to a face parallel to a rotation direction of the optical deflector 5 is defined as the incident angle of the plurality of the optical beams to the diffractive optical element 4, the incident angle of any optical beam is 5 degrees or less.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过减少由于使用衍射面的光学扫描装置中的温度变化引起的光点直径的变化，通过稳定的光点直径进行光学扫描。光学扫描装置包括：具有多个发光部的光源部1; 用于将光束从发光部分引导到光学偏转器5的第一光学元件; 以及第二光学元件6，用于通过会聚由光学偏转器5偏转的多个光束并在待扫描的面8上形成光点来光扫描待扫描的面8。第一光学元件是衍射光学元件4 其中至少一面是衍射面。在包括衍射光学元件4的光轴的平面中，当将与光偏转器5的旋转方向平行的面的入射角定义为多个光束对衍射光学元件4的入射角时任何光束的入射角为5度以下。版权所有（C）2007，JPO＆INPIT

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