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1. 发明申请

US20080123159A1 SCANNING UNIT AND IMAGE FORMING APPARATUS 有权
标题翻译：扫描单元和图像形成装置
公开(公告)号：US20080123159A1
公开(公告)日：2008-05-29
申请号：US11933800
申请日：2007-11-01
申请人： Yoshinori HAYASHI , Naoto Watanabe , Daisuke Ichii , Nobuaki Kubo
发明人： Yoshinori HAYASHI , Naoto Watanabe , Daisuke Ichii , Nobuaki Kubo
IPC分类号： H04N1/04
CPC分类号： H04N1/1135 , G02B26/124
摘要： A scanning unit in an image forming apparatus includes a light source, a coupling lens, an aperture, an image forming lens, and a polygon mirror. The light source includes a plurality of surface-emitting lasers. The coupling lens, the aperture, and the image forming lens are arranged on the optical path of light beams emitted by the light source. The polygon mirror deflects light beams of an image formed by the coupling lens towards a photosensitive drum for scanning. The focal length of the image forming lens in a sub-scanning direction is set to be equal to or smaller than an optical path length between the image forming lens and the aperture.
摘要翻译：图像形成装置中的扫描单元包括光源，耦合透镜，孔，成像透镜和多面镜。光源包括多个表面发射激光器。耦合透镜，孔径和图像形成透镜布置在由光源发射的光束的光路上。多面镜将由耦合透镜形成的图像的光束偏转到用于扫描的感光鼓。图像形成透镜在副扫描方向上的焦距设定为等于或小于成像透镜和光圈之间的光程长度。

2. 发明申请

US20080100895A1 SCANNING UNIT AND IMAGE FORMING APPARATUS 有权
标题翻译：扫描单元和图像形成装置
公开(公告)号：US20080100895A1
公开(公告)日：2008-05-01
申请号：US11877020
申请日：2007-10-23
申请人： Yoshinori HAYASHI , Nobuaki Kubo , Naoto Watanabe , Daisuke Ichii
发明人： Yoshinori HAYASHI , Nobuaki Kubo , Naoto Watanabe , Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/124 , G02B26/125
摘要： A scanning optical system leads the light fluxes deflected by the polygon mirror to a photosensitive drum. An absolute value of a lateral magnification in a main scanning direction is larger than an absolute value of a lateral magnification in a sub-scanning direction. Moreover, a beam diameter in the sub-scanning direction on a surface of the photosensitive drum is equal to or smaller than a beam diameter in the main scanning direction and larger than a scan line interval.
摘要翻译：扫描光学系统将由多面镜偏转的光束引导到感光鼓。主扫描方向的横向放大率的绝对值大于副扫描方向的横向倍率的绝对值。此外，感光鼓的表面上的副扫描方向上的光束直径等于或小于主扫描方向上的光束直径并且大于扫描线间隔。

3. 发明申请

US20090315967A1 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：US20090315967A1
公开(公告)日：2009-12-24
申请号：US12478304
申请日：2009-06-04
申请人： Yoshinori HAYASHI , Daisuke Ichii
发明人： Yoshinori HAYASHI , Daisuke Ichii
IPC分类号： B41J2/435
CPC分类号： B41J2/475 , G02B7/025 , G02B26/124 , G02B27/62
摘要： An optical scanning device includes a lens having a negative optical power at least in a sub-scanning direction and a lens having a positive optical power at least in the sub-scanning direction between a light source and a deflecting unit. The optical scanning device further includes a coupling lens and an adjusting lens whose positions can be adjusted in an optical axis direction and then bonded with ultraviolet curing resin. Therefore, the magnification of an optical system can be adjusted and consequently a desired scan-line interval can be obtained.
摘要翻译：光学扫描装置至少在副扫描方向上具有负光焦度的透镜和至少在光源和偏转单元之间的副扫描方向上具有正光焦度的透镜。光学扫描装置还包括耦合透镜和调节透镜，其位置可以在光轴方向上调节，然后与紫外线固化树脂粘合。因此，可以调整光学系统的放大率，并且因此可以获得期望的扫描线间隔。

4. 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。

5. 发明申请

US20120069416A1 SURFACE-EMISSION LASER ARRAY, OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS 有权
标题翻译：表面发射激光阵列，光学扫描装置和图像形成装置
公开(公告)号：US20120069416A1
公开(公告)日：2012-03-22
申请号：US13304874
申请日：2011-11-28
申请人： Shunichi SATO , Akihiro ITOH , Hiroyoshi SHOUJI , Yoshinori HAYASHI , Daisuke ICHII , Kei HARA , Mitsumi FUJII
发明人： Shunichi SATO , Akihiro ITOH , Hiroyoshi SHOUJI , Yoshinori HAYASHI , Daisuke ICHII , Kei HARA , Mitsumi FUJII
IPC分类号： G02B26/10 , H01S5/42
CPC分类号： B41J2/45 , B41J2/473 , B82Y20/00 , G02B26/123 , H01S5/18311 , H01S5/18358 , H01S5/3432 , H01S5/423
摘要： A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction.
摘要翻译：表面发射激光器阵列包括以二维阵列的形式布置的多个表面发射激光二极管元件，其中垂直于从第一方向延伸的直线绘制的多条直线从多个在与第一方向垂直的第二方向上排列的表面发射激光二极管元件在第一方向上以大致相等的间隔形成，多个表面发射激光二极管元件在第一方向上对准，间隔设置为基准并且其中在所述第一方向上排列的所述表面发射激光二极管元件的数量小于在所述第二方向上排列的所述表面发射激光二极管元件的数量。

6. 发明申请

US20110228368A1 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：US20110228368A1
公开(公告)日：2011-09-22
申请号：US13152989
申请日：2011-06-03
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： G02B26/10
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。

7. 发明申请

US20080266633A1 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：US20080266633A1
公开(公告)日：2008-10-30
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。

8. 发明申请

US20130286150A1 SURFACE-EMISSION LASER ARRAY, OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS 有权
标题翻译：表面发射激光阵列，光学扫描装置和图像形成装置
公开(公告)号：US20130286150A1
公开(公告)日：2013-10-31
申请号：US13930409
申请日：2013-06-28
申请人： Shunichi SATO , Akihiro ITOH , Hiroyoshi SHOUJI , Yoshinori HAYASHI , Daisuke ICHII , Kei HARA , Mitsumi FUJII
发明人： Shunichi SATO , Akihiro ITOH , Hiroyoshi SHOUJI , Yoshinori HAYASHI , Daisuke ICHII , Kei HARA , Mitsumi FUJII
IPC分类号： B41J2/45
CPC分类号： B41J2/45 , B41J2/473 , B82Y20/00 , G02B26/123 , H01S5/18311 , H01S5/18358 , H01S5/3432 , H01S5/423
摘要： A surface-emission laser array comprises a plurality of surface-emission laser diode elements arranged in the form of a two-dimensional array, wherein a plurality of straight lines drawn perpendicularly to a straight line extending in a first direction from respective centers of the plurality of surface emission laser diode elements aligned in a second direction perpendicular to the first direction, are formed with generally equal interval in the first direction, the plurality of surface-emission laser diode elements are aligned in the first direction with an interval set to a reference value, and wherein the number of the surface-emission laser diode elements aligned in the first direction is smaller than the number of the surface-emission laser diode elements aligned in the second direction.
摘要翻译：表面发射激光器阵列包括以二维阵列的形式布置的多个表面发射激光二极管元件，其中垂直于从第一方向延伸的直线绘制的多条直线从多个在与第一方向垂直的第二方向上排列的表面发射激光二极管元件在第一方向上以大致相等的间隔形成，多个表面发射激光二极管元件在第一方向上对准，间隔设置为基准并且其中在所述第一方向上排列的所述表面发射激光二极管元件的数量小于在所述第二方向上排列的所述表面发射激光二极管元件的数量。

9. 发明申请

US20080285104A1 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：US20080285104A1
公开(公告)日：2008-11-20
申请号：US12119859
申请日：2008-05-13
申请人： Nobuyuki ARAI , Yoshinori HAYASHI , Naoto WATANABE
发明人： Nobuyuki ARAI , Yoshinori HAYASHI , Naoto WATANABE
IPC分类号： G02B26/12 , G02B26/10
CPC分类号： B41J2/471 , G02B26/123 , G02B26/127 , H04N1/1135 , H04N1/12 , H04N1/506 , H04N2201/0471 , H04N2201/04713 , H04N2201/04744
摘要： An optical scanner includes a plurality of scanning optical systems each of which scans a different surface to be scanned and includes a light source configured to emit a light beam, an optical deflector having a plurality of reflection surfaces, and a synchronization detector configured to receive the light beam deflected by the optical deflector and detect a timing to scan an effective area of the surface to be scanned with the deflected light beam before a scanning is started or after the scanning is completed. The synchronization detector of one of a pair of scanning optical systems is disposed on a scanning end side to determine the scanning timing, and the synchronization detector of the other one of the pair of scanning optical systems is disposed on a scanning start side to determine the scanning timing.
摘要翻译：光学扫描仪包括多个扫描光学系统，每个扫描光学系统扫描要扫描的不同表面，并且包括被配置为发射光束的光源，具有多个反射表面的光学偏转器，以及配置成接收光束由光学偏转器偏转，并且在扫描开始之前或扫描完成之后检测用偏转光束扫描的待扫描表面的有效区域的定时。一对扫描光学系统中的一个的同步检测器被设置在扫描端侧以确定扫描定时，并且一对扫描光学系统中的另一个扫描光学系统的同步检测器设置在扫描开始侧，以确定扫描时序。

10. 发明申请

US20080218827A1 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：US20080218827A1
公开(公告)日：2008-09-11
申请号：US12024505
申请日：2008-02-01
申请人： Naoto WATANABE , Kenichiro SAISHO , Yoshinori HAYASHI
发明人： Naoto WATANABE , Kenichiro SAISHO , Yoshinori HAYASHI
IPC分类号： G02B26/08
CPC分类号： G02B26/124 , G02B26/127 , H04N1/1135 , H04N1/125 , H04N2201/04703 , H04N2201/04755 , H04N2201/04787
摘要： An optical scanning device includes a light source, a light-beam splitting unit, a deflector, and a scanning optical system. The light-beam splitting unit splits a light beam from the light source into a plurality of light beams, so that the light beams are each incident to any one of reflecting surfaces of the deflector while having a phase difference of approximately π/2. The scanning optical system receives the light beams from the deflector and projects each of the light beams onto a corresponding target surface.
摘要翻译：光学扫描装置包括光源，光束分离单元，偏转器和扫描光学系统。光束分离单元将来自光源的光束分成多个光束，使得光束各自入射到偏转器的任何一个反射面，同时具有大约π/ 2的相位差。扫描光学系统接收来自偏转器的光束并将每个光束投射到相应的目标表面上。

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