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71. 发明授权

US07956884B2 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：US07956884B2
公开(公告)日：2011-06-07
申请号：US12472818
申请日：2009-05-27
申请人： Daisuke Ichii
发明人： Daisuke Ichii
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： G02B26/123 , B41J2/473 , G02B19/0014 , G02B19/0057 , G02B26/124 , G02B26/127
摘要： In an optical scanning device employing a multi-beam scanning method, a surface emitting laser light source includes laser emission sources; a parallel-plate-like quarter wavelength plate is arranged between the surface emitting laser light source and a first optical system; a light-intensity detecting unit separates light intensity of the laser beams of which form is converted by the first optical system and detects separated laser beams; and a light-intensity adjusting unit adjusts emission intensity of the laser emission sources individually based on a detection result by the light-intensity detecting unit. The quarter wavelength plate is arranged so that an optical axis thereof is tilted ±45 degrees with respect to the main-scanning direction around an optical axis of the first optical system.
摘要翻译：在采用多光束扫描方法的光学扫描装置中，表面发射激光光源包括激光发射源; 平面板状四分之一波长板布置在表面发射激光光源和第一光学系统之间; 光强检测单元分离由第一光学系统转换的形式的激光束的光强度，并检测分离的激光束; 并且光强度调节单元基于光强度检测单元的检测结果分别调整激光发射源的发射强度。四分之一波长板被布置成使得其光轴相对于围绕第一光学系统的光轴的主扫描方向倾斜±45度。

72. 发明申请

US20100195681A1 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：US20100195681A1
公开(公告)日：2010-08-05
申请号：US12698522
申请日：2010-02-02
申请人： Hibiki Tatsuno , Daisuke Ichii
发明人： Hibiki Tatsuno , Daisuke Ichii
IPC分类号： H01S3/10
CPC分类号： G02B26/123 , G02B26/124 , H01S5/005
摘要： An optical scanning device includes a vertical-cavity surface-emitting laser light source that emits laser beams perpendicular to a top surface thereof; a first optical system that couples the beams from the light source; a deflecting unit that deflects the beams; a second optical system that guides the beams from the first optical system to the deflecting unit; a third optical system that focuses the beams deflected by the deflecting unit into an optical spot on a scanned surface; and a light-quantity adjusting element disposed between the light source and the deflecting unit and having a substrate formed of a first and second surfaces. The first surface of the light-quantity adjusting element is coated with neutral density coating and the second surface is coated with antireflection coating so that reflectance of the second surface is made smaller than reflectance of the first surface.
摘要翻译：光学扫描装置包括发射垂直于其顶表面的激光束的垂直腔表面发射激光光源; 耦合来自光源的光束的第一光学系统; 偏转单元，其使梁偏转; 将光束从第一光学系统引导到偏转单元的第二光学系统; 第三光学系统，其将由偏转单元偏转的光束聚焦到扫描表面上的光点中; 以及光量调节元件，其设置在所述光源和所述偏转单元之间，并具有由第一表面和所述第二表面形成的基板。光量调节元件的第一表面涂覆有中性密度涂层，并且第二表面涂覆有抗反射涂层，使得第二表面的反射率小于第一表面的反射率。

73. 发明授权

US07738007B2 Optical scanning device and method for adjusting errors 有权
标题翻译：光学扫描装置及误差调整方法
公开(公告)号：US07738007B2
公开(公告)日：2010-06-15
申请号：US12190182
申请日：2008-08-12
申请人： Daisuke Ichii , Makoto Hirakawa
发明人： Daisuke Ichii , Makoto Hirakawa
IPC分类号： B41J15/14 , B41J27/00
CPC分类号： G03G15/0435
摘要： In an optical scanning device, a lateral magnification in a direction corresponding to a sub scanning direction of an optical system is adjusted to be small by a coupling optical system that includes a first lens and a second lens. As a result, scanning by a plurality of light beams can be performed with high precision while avoiding high costs.
摘要翻译：在光学扫描装置中，通过包括第一透镜和第二透镜的耦合光学系统将与光学系统的副扫描方向相对应的方向上的横向放大率调整到较小。结果，可以以高精度执行多个光束的扫描，同时避免高成本。

74. 发明授权

US07687762B2 Monitoring device, light source device, optical scanning device, and image forming apparatus having an aperture member for shaping a beam diameter of a monitoring light beam 有权
标题翻译：监视装置，光源装置，光学扫描装置和具有用于使监视光束的光束直径成形的光圈部件的成像装置
公开(公告)号：US07687762B2
公开(公告)日：2010-03-30
申请号：US12186808
申请日：2008-08-06
申请人： Naoto Watanabe , Daisuke Ichii
发明人： Naoto Watanabe , Daisuke Ichii
IPC分类号： H01J3/14
CPC分类号： G01J1/32 , G01J1/04 , G01J1/0414 , G01J1/0437 , G01J1/0455 , G03G15/043 , G03G15/0435 , G03G2215/0404
摘要： A monitoring device includes a first aperture plate, a second aperture plate, and a photodiode. The first aperture is disposed in a light path of a light beam emitted by a light source and includes a first aperture arranged such that a portion of the light beam having maximum light intensity passes and a reflecting portion that reflects the light beam as a monitoring light beam. The second aperture plate is disposed in a light path of the monitoring light beam and includes a second aperture that shapes a beam diameter of the monitoring light beam. The photodiode receives the monitoring light beam.
摘要翻译：监测装置包括第一孔板，第二孔板和光电二极管。第一光圈设置在由光源发射的光束的光路中，并且包括布置成使得具有最大光强度的光束的一部分通过的第一孔和反射光束作为监视光的反射部分光束。第二光圈板设置在监视光束的光路中，并且包括形成监视光束的光束直径的第二光圈。光电二极管接收监控光束。

75. 发明授权

US07586661B2 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：US07586661B2
公开(公告)日：2009-09-08
申请号：US11771275
申请日：2007-06-29
申请人： Daisuke Ichii
发明人： Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/124 , G02B7/008 , G02B26/125 , G02B27/0031 , G02B27/0037 , G02B27/4211 , G02B27/4227 , G02B27/4283
摘要： A coupling optical system that includes a coupling lens, a linear-image forming lens, and an aperture couples light beams emitted from a light source to form a light flux. A deflector scans the light flux in a main scanning direction to form an image as a scanning line on a surface to be scanned through first and second scanning lenses. While an image is being formed on an image plane, the image plane is moved in a direction perpendicular to the main scanning direction. The linear-image forming lens has a diffractive optical surface capable of collecting light in a sub-scanning direction. The temperature dependence dλ/dT of wavelength of the light source satisfies dλ/dT
摘要翻译：一种耦合光学系统，其包括耦合透镜，线性图像形成透镜以及从光源发射的光束以形成光束。偏转器沿主扫描方向扫描光通量，以便通过第一和第二扫描透镜在要扫描的表面上形成扫描线的图像。当在图像平面上形成图像时，图像平面在垂直于主扫描方向的方向上移动。线性图像形成透镜具有能够沿副扫描方向收集光的衍射光学表面。光源的波长的温度依赖性λλ/ dT满足dlambda / dT <0.15。

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