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1. 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。

2. 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。

3. 发明授权

US07417777B2 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：US07417777B2
公开(公告)日：2008-08-26
申请号：US11844643
申请日：2007-08-24
申请人： Kenichiroh Saisho , Yoshinori Hayashi , Takeshi Ueda , Kohji Sakai , Daisuke Ichii
发明人： Kenichiroh Saisho , Yoshinori Hayashi , Takeshi Ueda , Kohji Sakai , Daisuke Ichii
IPC分类号： G02B26/08
CPC分类号： G02B26/124 , G02B5/1876 , H04N1/1135 , H04N2201/0471 , H04N2201/04729 , H04N2201/04732 , H04N2201/04744
摘要： A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direction and a sub-scanning directions on the scanning surface caused by the temperature change, by a wavelength change of the optical beam caused by power changes of the refraction plane and the diffraction plane and the temperature change. A deflecting unit deflects the optical beam that passed through the coupling lens. A scanning optical system condenses a deflected optical beam on the scanning surface.
摘要翻译：耦合透镜，布置在来自VCSEL的光束的光路上，所述光束具有根据温度变化分别改变功率的折射面和衍射面，并抑制主扫描方向上的束腰位置变化，通过由折射平面和衍射面的功率变化引起的光束的波长变化和温度变化，由温度变化引起的扫描表面上的副扫描方向。偏转单元使通过耦合透镜的光束偏转。扫描光学系统将偏转的光束冷凝在扫描表面上。

4. 发明授权

US08077369B2 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：US08077369B2
公开(公告)日：2011-12-13
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： G02B26/08
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。

5. 发明申请

US20080055692A1 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：US20080055692A1
公开(公告)日：2008-03-06
申请号：US11844643
申请日：2007-08-24
申请人： Kenichiroh Saisho , Yoshinori Hayashi , Takeshi Ueda , Kohji Sakai , Daisuke Ichii
发明人： Kenichiroh Saisho , Yoshinori Hayashi , Takeshi Ueda , Kohji Sakai , Daisuke Ichii
IPC分类号： G02B26/10 , G02F1/00
CPC分类号： G02B26/124 , G02B5/1876 , H04N1/1135 , H04N2201/0471 , H04N2201/04729 , H04N2201/04732 , H04N2201/04744
摘要： A coupling lens arranged on an optical path of an optical beam from a VCSEL, which has a refraction plane and a diffraction plane that respectively change a power according to a temperature change and suppresses a beam-waist position change in a main-scanning direction and a sub-scanning directions on the scanning surface caused by the temperature change, by a wavelength change of the optical beam caused by power changes of the refraction plane and the diffraction plane and the temperature change. A deflecting unit deflects the optical beam that passed through the coupling lens. A scanning optical system condenses a deflected optical beam on the scanning surface.
摘要翻译：耦合透镜，布置在来自VCSEL的光束的光路上，所述光束具有根据温度变化分别改变功率的折射面和衍射面，并抑制主扫描方向上的束腰位置变化，通过由折射平面和衍射面的功率变化引起的光束的波长变化和温度变化，由温度变化引起的扫描表面上的副扫描方向。偏转单元使通过耦合透镜的光束偏转。扫描光学系统将偏转的光束冷凝在扫描表面上。

6. 发明授权

US07973990B2 Optical scanning device, optical writing device, and image forming apparatus 有权
公开(公告)号：US07973990B2
公开(公告)日：2011-07-05
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.

7. 发明授权

US07672032B2 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成像设备
公开(公告)号：US07672032B2
公开(公告)日：2010-03-02
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： G02B26/08
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。

8. 发明授权

US07616364B2 Scanning optical system, optical scanner, and image forming apparatus having a biconvex lens having a change of curvature of the toric surface in the cross section in the sub-scanning direction along the main scanning direction is asymmetric with an optical axis of the lens 有权
标题翻译：扫描光学系统，光学扫描器和成像设备具有双折射透镜，该双凸透镜在副扫描方向上沿主扫描方向的横截面具有曲面的曲率变化，与透镜的光轴不对称
公开(公告)号：US07616364B2
公开(公告)日：2009-11-10
申请号：US11340646
申请日：2006-01-27
申请人： Kenichiroh Saisho , Kohji Sakai
发明人： Kenichiroh Saisho , Kohji Sakai
IPC分类号： G02B26/08
CPC分类号： B41J2/473 , G02B13/08 , G02B26/125
摘要： A scanning optical system includes converges, with a single lens, a divergent luminous flux, which is deflected in a main scanning direction by an optical deflector, on a surface of a scan target. The lens has two surfaces in a biconvex shape in both the main scanning direction and a sub-scanning direction, and at least one of the surfaces is a toric surface in which a line that connects, on a cross section in the main scanning direction, centers of curvature in a cross section in the sub-scanning direction is nonlinear, and change of the curvature of the toric surface in the cross section in the sub-scanning direction along the main scanning direction is asymmetric with an optical axis of the lens. The surfaces are anamorphic surfaces.
摘要翻译：扫描光学系统包括具有单个透镜的在光学偏转器的主扫描方向上偏转的发散光束在扫描对象的表面上的会聚。透镜具有在主扫描方向和副扫描方向上具有双凸形状的两个表面，并且至少一个表面是复曲面，其中在主扫描方向的横截面上连接的线，沿副扫描方向的横截面中的曲率中心是非线性的，沿着主扫描方向的副扫描方向的截面中的复曲面的曲率的变化与透镜的光轴不对称。表面是变形表面。

9. 发明申请

US20070211326A1 Optical scanning apparatus, optical writing apparatus, 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：US20070211326A1
公开(公告)日：2007-09-13
申请号：US11714116
申请日：2007-03-06
申请人： Kenichiroh Saisho , Kohji Sakai
发明人： Kenichiroh Saisho , Kohji Sakai
IPC分类号： G02B26/08
CPC分类号： G02B26/125
摘要： A scanning optical system condensing a beam deflected by an optical deflector so as to form a beam spot on a surface to be scanned, comprises two lenses. A lens on the side of optical deflector has a negative refracting power in sub-scanning direction. A lens on the side of surface to be scanned has a positive refracting power in the sub-scanning direction. At least one lens surface of the lens surfaces of the two lenses is such that a shape in a sub-scanning section thereof is a non-arc shape.
摘要翻译：一种扫描光学系统，其将由光学偏转器偏转的光束聚光以在待扫描的表面上形成束斑，包括两个透镜。光偏转器一侧的透镜在副扫描方向上具有负的折射光焦度。待扫描表面一侧的透镜在副扫描方向上具有正折射力。两个透镜的透镜表面的至少一个透镜表面使得其副扫描部分中的形状为非弧形。

10. 发明申请

US20060187294A1 Scanning optical system, optical scanner, and image forming apparatus 有权
标题翻译：扫描光学系统，光学扫描仪和图像形成装置
公开(公告)号：US20060187294A1
公开(公告)日：2006-08-24
申请号：US11340646
申请日：2006-01-27
申请人： Kenichiroh Saisho , Kohji Sakai
发明人： Kenichiroh Saisho , Kohji Sakai
IPC分类号： B41J2/435
CPC分类号： B41J2/473 , G02B13/08 , G02B26/125
摘要： A scanning optical system includes converges, with a single lens, a divergent luminous flux, which is deflected in a main scanning direction by an optical deflector, on a surface of a scan target. The lens has two surfaces in a biconvex shape in both the main scanning direction and a sub-scanning direction, and at least one of the surfaces is a toric surface in which a line that connects, on a cross section in the main scanning direction, centers of curvature in a cross section in the sub-scanning direction is nonlinear, and change of the curvature of the toric surface in the cross section in the sub-scanning direction along the main scanning direction is asymmetric with an optical axis of the lens. The surfaces are anamorphic surfaces.
摘要翻译：扫描光学系统包括具有单个透镜的在光学偏转器的主扫描方向上偏转的发散光束在扫描对象的表面上的会聚。透镜具有在主扫描方向和副扫描方向上具有双凸形状的两个表面，并且至少一个表面是复曲面，其中在主扫描方向的横截面上连接的线，沿副扫描方向的横截面中的曲率中心是非线性的，沿着主扫描方向的副扫描方向的截面中的复曲面的曲率的变化与透镜的光轴不对称。表面是变形表面。

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