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1. 发明授权

US07903135B2 Optical scanning device and image forming apparatus for optimizing arrangement intervals in a main-scanning direction and a sub-scanning direction 有权
标题翻译：光学扫描装置和图像形成装置，用于优化主扫描方向和副扫描方向上的布置间隔
公开(公告)号：US07903135B2
公开(公告)日：2011-03-08
申请号：US12110862
申请日：2008-04-28
申请人： Daisuke Ichii , Yoshinori Hayashi , Seizo Suzuki , Masaaki Ishida , Makoto Hirakawa
发明人： Daisuke Ichii , Yoshinori Hayashi , Seizo Suzuki , Masaaki Ishida , Makoto Hirakawa
IPC分类号： B41J2/45
CPC分类号： G03G15/326 , B41J2/473 , G02B26/123 , G03G15/043 , G03G15/0435 , G03G2215/0407 , H04N1/1135 , H04N1/12 , H04N1/1912 , H04N1/1917 , H04N2201/0082
摘要： An optical scanning device which scans a scanned surface by a plurality of light beams in a main-scanning direction includes a light source having a plurality of light-emitting portions which emit the light beams, the light-emitting portions being two-dimensionally arranged in a plane parallel to the main-scanning direction and a sub-scanning direction orthogonal to the main-scanning direction via arrangement intervals in the main-scanning direction and the sub-scanning direction, a deflector which scans the light beams in the main-scanning direction; and a scanning optical system which images the scanned light beams onto the scanned surface.
摘要翻译：在主扫描方向上通过多个光束扫描扫描表面的光学扫描装置包括具有发射光束的多个发光部分的光源，发光部分二维布置在与主扫描方向平行的平面和与主扫描方向正交的副扫描方向经由主扫描方向和副扫描方向的配置间隔，偏转器，扫描主扫描方向的光束方向; 以及扫描光学系统，其将扫描的光束成像到扫描的表面上。

2. 发明授权

US08115794B2 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：US08115794B2
公开(公告)日：2012-02-14
申请号：US12348110
申请日：2009-01-02
申请人： Masako Yoshii , Seizo Suzuki , Yoshinori Hayashi , Daisuke Ichii
发明人： Masako Yoshii , Seizo Suzuki , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： B41J27/00 , B41J15/14
CPC分类号： G03G15/326 , G03G15/0435 , G03G2215/0404 , G03G2215/0407
摘要： In an optical scanning device, when pixel density is taken to be n, number of the light beams is taken to be b, and number of the deflection surfaces of a deflecting unit is taken to be p, a spatial frequency S denoted by S=1/(1/(25.4/n×b×p) is within a range of a spatial frequency characteristic for a visual perception system of a high relative luminous efficiency. When spacing between ends in a sub-scanning direction of a scanning line formed by one scan by the deflection unit is taken to be L1, and spacing between all progressive scanning lines at the surface to be scanned is taken to be L2, then L1>(k−1)×L2 is satisfied, where k is a total number of light emitting points of a light source.
摘要翻译：在光扫描装置中，当像素密度为n时，将光束的数量取为b，将偏转单元的偏转面的数量取为p，将由S = 1 /（1 /（25.4 / n×b×p））在高相对发光效率的视觉感知系统的空间频率特性的范围内，形成扫描线的副扫描方向的两端之间的间隔由偏转单元进行一次扫描取为L1，将待扫描表面的所有逐行扫描线之间的间隔设为L2，则满足L1>（k-1）×L2，其中k为总数光源的发光点数。

3. 发明申请

US20090175657A1 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：US20090175657A1
公开(公告)日：2009-07-09
申请号：US12348110
申请日：2009-01-02
申请人： Masako Yoshii , Seizo Suzuki , Yoshinori Hayashi , Daisuke Ichii
发明人： Masako Yoshii , Seizo Suzuki , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： G03G15/04 , G03G15/22
CPC分类号： G03G15/326 , G03G15/0435 , G03G2215/0404 , G03G2215/0407
摘要： In an optical scanning device, when pixel density is taken to be n, number of the light beams is taken to be b, and number of the deflection surfaces of a deflecting unit is taken to be p, a spatial frequency S denoted by S=1/(1/(25.4/n×b×p) is within a range of a spatial frequency characteristic for a visual perception system of a high relative luminous efficiency. When spacing between ends in a sub-scanning direction of a scanning line formed by one scan by the deflection unit is taken to be L1, and spacing between all progressive scanning lines at the surface to be scanned is taken to be L2, then L1>(k−1)×L2 is satisfied, where k is a total number of light emitting points of a light source.
摘要翻译：在光扫描装置中，当像素密度为n时，将光束的数量取为b，将偏转单元的偏转面的数量取为p，将由S = 1 /（1 /（25.4 / n×b×p））在高相对发光效率的视觉感知系统的空间频率特性的范围内，当通过一次扫描形成的扫描线的副扫描方向的端部之间的间隔将偏转单元取为L1，将要扫描的表面上的所有逐行扫描线之间的间隔设为L2，则满足L1>（k-1）×L2，其中k是发光点的总数的光源。

4. 发明授权

US07623280B2 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：US07623280B2
公开(公告)日：2009-11-24
申请号：US12107379
申请日：2008-04-22
申请人： Makoto Hirakawa , Yoshinori Hayashi , Daisuke Ichii
发明人： Makoto Hirakawa , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/124
摘要： An optical scanning device includes a light source configured to emit light beams, a deflector to deflect the light beams emitted from the light source, a first optical assembly which is positioned upon a light path of the light beams traveling from the light source to the deflector and which forms an image with the light beams emitted from the light source in a sub scanning direction in a vicinity of the deflector, and a second optical assembly to form the image upon a surface to be scanned with the light beams deflected by the deflector. A principal ray of two of the light beams incident to the first optical assembly, which are located at each respective terminus in the sub scanning direction, are set so as to advance so as either to remain mutually parallel to or converge with one another after passing through the first optical assembly.
摘要翻译：光学扫描装置包括被配置为发射光束的光源，用于使从光源发射的光束偏转的偏转器，位于从光源传播到导流板的光束的光路上的第一光学组件并且在偏转器附近以副扫描方向形成从光源发射的光束的图像，以及第二光学组件，用于在被偏转器偏转的光束的待扫描表面上形成图像。入射到第一光学组件的两个光束的主射线位于副扫描方向上的每个相应的末端，被设置为前进，以便在通过后保持彼此相互平行或相互会聚通过第一光学组件。

5. 发明授权

US08223418B2 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：US08223418B2
公开(公告)日：2012-07-17
申请号：US12365727
申请日：2009-02-04
申请人： Daisuke Ichii , Makoto Hirakawa
发明人： Daisuke Ichii , Makoto Hirakawa
IPC分类号： G02B26/08 , G02B26/10 , G02B26/12
CPC分类号： G02B26/124
摘要： A first optical system couples a light beam from a light source, including a first lens made of glass with a positive power and a second lens made of plastic with a negative power. A second optical system focuses the light beam from the first optical system onto a scanning surface and moves a light spot on the scanning surface in a main-scanning direction. One of an incidence plane and an output plane of the first lens is spherical while the other is spherical or flat. A cross-sectional plane of the second lens along one of the main-scanning direction and a sub-scanning direction has a non-arc shape on at least one of the incidence plane and the output plane.
摘要翻译：第一光学系统将来自光源的光束耦合，包括具有正光焦度的由玻璃制成的第一透镜和由具有负光焦度的塑料制成的第二透镜。第二光学系统将来自第一光学系统的光束聚焦到扫描表面上，并沿主扫描方向移动扫描表面上的光斑。第一透镜的入射面和输出面中的一个是球形的，而另一个是球形或平坦的。沿着主扫描方向和副扫描方向之一的第二透镜的横截面在入射面和输出平面中的至少一个上具有非弧形。

6. 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。

7. 发明授权

US08179414B2 Surface-emitting laser array, optical scanning device, and image forming device 有权
标题翻译：表面发射激光器阵列，光学扫描装置和成像装置
公开(公告)号：US08179414B2
公开(公告)日：2012-05-15
申请号：US12377284
申请日：2008-07-04
申请人： Shunichi Sato , Yoshinori Hayashi , Daisuke Ichii
发明人： Shunichi Sato , Yoshinori Hayashi , Daisuke Ichii
IPC分类号： B41J2/45
CPC分类号： B41J2/45 , B41J2/455 , B41J2/473 , G02B26/123 , G03G15/04072 , G03G15/0435 , G03G15/326 , G03G2215/0404 , G03G2215/0421 , H01S5/423 , H04N1/0311 , H04N1/113 , H04N1/1135 , H04N1/121 , H04N1/195 , H04N1/19515 , H04N2201/03104
摘要： A surface-emitting laser array includes a plurality of light emitting parts arranged in a two-dimensional formation having two orthogonal directions. When the plurality of light emitting parts are orthogonally projected on a virtual line parallel to one of the two orthogonal directions, a spacing between two of the plurality of light emitting parts along the virtual line is equal to an integral multiple of a predetermined value. The plurality of light emitting parts include a first light emitting part, a second light emitting part adjacent to the first light emitting part, and a third light emitting part adjacent to the second light emitting part, and a spacing between the first and second light emitting parts differs from a spacing between the second and third light emitting parts.
摘要翻译：表面发射激光器阵列包括以具有两个正交方向的二维结构排列的多个发光部。当多个发光部分正交投影在平行于两个正交方向中的一个的虚拟线上时，沿虚拟线的多个发光部分中的两个之间的间隔等于预定值的整数倍。多个发光部分包括第一发光部分，与第一发光部分相邻的第二发光部分和与第二发光部分相邻的第三发光部分，以及第一和第二发光部分之间的间隔零件与第二和第三发光部件之间的间隔不同。

8. 发明申请

US20080068693A1 OPTICAL SCANNER AND IMAGE FORMING APPARATUS USING OPTICAL SCANNER 有权
标题翻译：光学扫描仪和使用光学扫描仪的图像形成装置
公开(公告)号：US20080068693A1
公开(公告)日：2008-03-20
申请号：US11857811
申请日：2007-09-19
申请人： Yoshinori HAYASHI , Kohji Sakai , Takeshi Ueda , Daisuke Ichii , Kenichiroh Saisho
发明人： Yoshinori HAYASHI , Kohji Sakai , Takeshi Ueda , Daisuke Ichii , Kenichiroh Saisho
IPC分类号： G02B26/10
CPC分类号： G02B26/127 , G02B27/40
摘要： An optical axis of at least one surface of a resin-made diffracting lens is shifted in a main scanning direction with respect to an incident beam. A synchronous detection can cancel a problem of a misalignment in the main scanning direction due to a temperature variation. A light reflected from a second surface of the resin-made diffractive lens condenses on a position that is displaced in an optical axis direction from an optical beam outgoing point of a semiconductor laser, and thereby the light reflected again from the semiconductor laser does not form an image on a scanned surface and an impact on the image becomes low.
摘要翻译：树脂衍射透镜的至少一个表面的光轴相对于入射光束在主扫描方向上偏移。同步检测可以消除由于温度变化而导致的主扫描方向上的未对准的问题。从树脂衍射透镜的第二表面反射的光在从半导体激光器的光束出射点沿光轴方向位移的位置聚集，从而半导体激光器再次反射的光不形成扫描表面上的图像和对图像的影响变低。

9. 发明申请

US20080024849A1 OPTICAL SCANNING APPARATUS 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：US20080024849A1
公开(公告)日：2008-01-31
申请号：US11780762
申请日：2007-07-20
申请人： Yoshinori Hayashi , Shunichi Sato , Daisuke Ichii
发明人： Yoshinori Hayashi , Shunichi Sato , Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/123 , B82Y20/00 , H01S5/18311 , H01S5/18358 , H01S5/3211 , H01S5/3432 , H01S5/3434 , H01S5/3436 , H01S5/423
摘要： In an optical scanning apparatus, when it is assumed that a scanning direction of light beams defected from a deflector is a main scanning direction, and a direction orthogonal to the main scanning direction and to optical axes of both a first and a second optical systems is a sub scanning direction, a distance between the outermost light emitting diodes of a light source in the main scanning direction is longer than that in the sub scanning direction.
摘要翻译：在光扫描装置中，当假设从偏转器缺陷的光束的扫描方向为主扫描方向，并且与主扫描方向正交的方向和第一和第二光学系统的光轴为副扫描方向，主扫描方向上的光源的最外侧的发光二极管之间的距离比副扫描方向的长。

10. 发明申请

US20070253048A1 OPTICAL SCANNING DEVICE, OPTICAL WRITING DEVICE, AND IMAGE FORMING APPARATUS 有权
标题翻译：光学扫描装置，光学写入装置和图像形成装置
公开(公告)号：US20070253048A1
公开(公告)日：2007-11-01
申请号：US11740070
申请日：2007-04-25
申请人： Kohji SAKAI , Yoshinori Hayashi , Takeshi Ueda , Daisuke Ichii , Kenichiroh Saisho
发明人： Kohji SAKAI , Yoshinori Hayashi , Takeshi Ueda , Daisuke Ichii , Kenichiroh Saisho
IPC分类号： G02B26/08
CPC分类号： G02B27/42 , G02B26/124 , G02B27/4227 , G02B27/4283
摘要： An optical scanning device includes a first optical system for guiding light beams emitted from a plurality of light emitting units to an optical deflector, and a second optical system for focusing the light beams to optically scan a surface to be scanned. At least one of the first optical system and the second optical system includes a resin lens having a diffractive surface. The diffractive surface includes a diffractive portion and a refractive portion. A power of the diffractive portion and a power of the refractive portion cancel each other.
摘要翻译：光学扫描装置包括用于将从多个发光单元发射的光束引导到光学偏转器的第一光学系统和用于聚焦光束以光学扫描要扫描的表面的第二光学系统。第一光学系统和第二光学系统中的至少一个包括具有衍射面的树脂透镜。衍射面包括衍射部分和折射部分。衍射部分的功率和折射部分的功率彼此抵消。

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