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1. 发明公开

EP1895350A1 Optical scanning device and image forming apparatus using the same 审中-公开
标题翻译：光学扫描装置及使用其的图像形成装置
公开(公告)号：EP1895350A1
公开(公告)日：2008-03-05
申请号：EP07016760.6
申请日：2007-08-27
申请人： Canon Kabushiki Kaisha
发明人： Yoshida, Hiroki , Ishibe, Yoshihiro
IPC分类号： G02B26/10
CPC分类号： G02B26/105
摘要： An optical scanning device having a deflector with an oscillating element wherein a relation 0.85 0 /dθ 0 ) 0 is a deflection angle of the oscillating element as a light beam scans the centre position Y 0 of an effective scan region on a scan surface with respect to a main-scan direction, θ is the deflection angle of the oscillating element as the light beam scans a scan position Y in the effective scan region with respect to the main-scan direction, dY 0 is an amount of change at the centre position Y 0 on the scan surface with reference to an amount of change dθ 0 of the oscillating element at the deflection angle θ 0 , and dY is an amount of change at the scan position Y on the scan surface with reference to an amount of change dθ of the oscillating element at the deflection angle θ.
摘要翻译：一种具有带有振荡元件的偏转器的光学扫描装置，其中在有效扫描区域内满足0.85 <（dY / d0）/（dY0 / d0）<1.15的关系，其中θ0是振荡元件作为光的偏转角光束扫描相对于主扫描方向的扫描表面上的有效扫描区域的中心位置Y0，θ是当光束扫描有效扫描区域中的扫描位置Y时振荡元件相对于主扫描方向dY0是以偏转角θ0时的振动元件的变化量dθ0为基准的扫描面上的中心位置Y0的变化量，dY是扫描位置的变化量 Y相对于偏转角度θ的振动元件的变化量dθ在扫描面上的位置。

2. 发明公开

EP0872751A1 Variable magnification optical system having image stabilizing function 失效
标题翻译： Optisches SystemveränderlicherVergrösserungmit Bildstabilisierung
公开(公告)号：EP0872751A1
公开(公告)日：1998-10-21
申请号：EP98104787.1
申请日：1998-03-17
申请人： CANON KABUSHIKI KAISHA
发明人： Hamano, Hiroyuki , Yoshida, Hiroki
IPC分类号： G02B7/28 , G02B27/64
CPC分类号： G02B15/173 , G02B27/646
摘要： A variable magnification optical system having an image stabilizing function includes, in order from an object side to an image side, a fixed first lens unit of positive refractive power, a second lens unit of negative refractive power, a third lens unit of positive refractive power and a fourth lens unit of positive refractive power. The second lens unit and the fourth lens unit are moved to effect variation of magnification. The third lens unit has a negative lens of meniscus form concave toward the image side and an aspheric surface, and the third lens unit is movable in a direction perpendicular to an optical axis to stabilize an image, or a lens sub-unit constituting part of the third lens unit is movable in the direction perpendicular to the optical axis to stabilize an image.
摘要翻译：具有图像稳定功能的可变倍率光学系统包括从物体侧到像侧的顺序为正屈光力的固定的第一透镜单元，负折光力的第二透镜单元，正折光力的第三透镜单元以及具有正屈光力的第四透镜单元。移动第二透镜单元和第四透镜单元以实现放大率的变化。第三透镜单元具有朝向像侧凹入的弯液面的负透镜和非球面，并且第三透镜单元可在垂直于光轴的方向上移动以使图像稳定，或者构成部分的透镜子单元第三透镜单元可以在垂直于光轴的方向上移动，以稳定图像。

3. 发明公开

EP1024012A2 Optical scanning apparatus and image forming apparatus and electrophotographic printer using such scanning apparatus 有权
标题翻译：一种光学拾取装置，图像形成装置和该扫描装置中使用的方向电子照相打印机
公开(公告)号：EP1024012A2
公开(公告)日：2000-08-02
申请号：EP00101301.0
申请日：2000-01-22
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshida, Hiroki , Ishibe, Yoshihiro
IPC分类号： B41J2/47
CPC分类号： H04N1/053 , B41J2/473 , G02B26/123 , G06K15/1219 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/0471 , H04N2201/04713 , H04N2201/04732 , H04N2201/04744
摘要： An optical scanning apparatus is capable of scanning a surface with a plurality of fluxes of light along a principal scanning direction. In the apparatus, a plurality of fluxes of light are emitted by a plurality of light sources arranged at intervals along an auxiliary scanning direction perpendicular to the principal scanning direction. The plurality of fluxes of light are lead to an optical deflector via an optical system for incident light and deflected by the optical deflector. Most part of the deflected fluxes of light are lead to the surface via an imaging optical system for scanning the surface, while small part of the deflected fluxes of light are lead to a photodetector to generate a synchronizing signal for controlling the timing of the scanning start of each of the fluxes of light. A slit is arranged between the optical deflector and the photodetector and the slit is inclined relative to the auxiliary scanning direction, whereby the scanning start timings for the plurality of fluxes of light are adjusted. The optical scanning apparatus is used in an image forming apparatus or an electrophotographic printer.
摘要翻译：光学扫描装置是能够扫描表面的光的光通量的沿主扫描方向的多个。在该装置中，光的通量的多元性通过的间隔沿着垂直于主扫描方向辅助扫描方向设置的光源一个多元化触发。光的通量的多元性经由导致对光学偏转器，用于将入射光的光学系统上，并通过光学偏转器偏转。光的偏转磁通量的大部分通过在用于扫描表面的成像光学系统导致的表面上，而光的偏转光束的一小部分被导致光检测器，以产生一个同步信号，用于控制扫描开始的定时的每个光的通量。狭缝在光学偏转器和光检测器和所述狭缝之间设置相对于副扫描方向，由此对于光的通量的多个扫描开始定时被调整倾斜。光学扫描装置在图像形成装置中使用，或电子照相打印机。

4. 发明授权

EP1085743B1 Multi-beam scanning optical system and image forming apparatus using it 有权
标题翻译：具有用于图像形成所使用的相同的多个束和装置的光学扫描装置
公开(公告)号：EP1085743B1
公开(公告)日：2007-10-03
申请号：EP00119832.4
申请日：2000-09-12
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshida, Hiroki
IPC分类号： H04N1/053
CPC分类号： H04N1/053 , G02B26/123 , G02B26/125 , H04N1/1135 , H04N1/1911 , H04N2201/0471 , H04N2201/04744 , H04N2201/04749 , H04N2201/04786
摘要： Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The multi-beam scanning optical system has an incidence optical unit for guiding a plurality of beams emitted from a light source unit having a plurality of light-emitting regions spaced apart from each other in a main scanning direction, to a deflector; a scanning optical unit for focusing the plurality of beams deflected by the deflector, on a surface to be scanned; and a synchronism-detecting optical unit for converging part of the plurality of beams deflected by the deflector, via a return mirror on a slit surface by a lens section, thereafter guiding the beams to a synchronism detector, and controlling timing of a scan start position on the surface to be scanned, by use of a signal from the synchronism detector. The elements are set so as to satisfy Condition (A) where delta M is a defocus amount in a main scanning section of the beams guided to the synchronism detector and in a view from the slit surface and delta X is a defocus amount at each image height on the surface to be scanned.

5. 发明授权

EP1024012B1 Optical scanning apparatus and image forming apparatus and electrophotographic printer using such scanning apparatus 有权
标题翻译：一种光学拾取装置，图像形成装置和该扫描装置中使用的方向电子照相打印机
公开(公告)号：EP1024012B1
公开(公告)日：2007-06-27
申请号：EP00101301.0
申请日：2000-01-22
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshida, Hiroki , Ishibe, Yoshihiro
IPC分类号： B41J2/47 , G02B26/12 , H04N1/053 , G06K15/12
CPC分类号： H04N1/053 , B41J2/473 , G02B26/123 , G06K15/1219 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/0471 , H04N2201/04713 , H04N2201/04732 , H04N2201/04744
摘要： An optical scanning apparatus is capable of scanning a surface with a plurality of fluxes of light along a principal scanning direction. In the apparatus, a plurality of fluxes of light are emitted by a plurality of light sources arranged at intervals along an auxiliary scanning direction perpendicular to the principal scanning direction. The plurality of fluxes of light are lead to an optical deflector via an optical system for incident light and deflected by the optical deflector. Most part of the deflected fluxes of light are lead to the surface via an imaging optical system for scanning the surface, while small part of the deflected fluxes of light are lead to a photodetector to generate a synchronizing signal for controlling the timing of the scanning start of each of the fluxes of light. A slit is arranged between the optical deflector and the photodetector and the slit is inclined relative to the auxiliary scanning direction, whereby the scanning start timings for the plurality of fluxes of light are adjusted. The optical scanning apparatus is used in an image forming apparatus or an electrophotographic printer.

6. 发明公开

EP1024012A3 Optical scanning apparatus and image forming apparatus and electrophotographic printer using such scanning apparatus 有权
标题翻译：光学扫描设备和图像形成设备以及使用这种扫描设备的电子照相打印机
公开(公告)号：EP1024012A3
公开(公告)日：2000-12-20
申请号：EP00101301.0
申请日：2000-01-22
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshida, Hiroki , Ishibe, Yoshihiro
IPC分类号： B41J2/47 , G02B26/12 , H04N1/053 , G06K15/12
CPC分类号： H04N1/053 , B41J2/473 , G02B26/123 , G06K15/1219 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/0471 , H04N2201/04713 , H04N2201/04732 , H04N2201/04744
摘要： An optical scanning apparatus is capable of scanning a surface with a plurality of fluxes of light along a principal scanning direction. In the apparatus, a plurality of fluxes of light are emitted by a plurality of light sources arranged at intervals along an auxiliary scanning direction perpendicular to the principal scanning direction. The plurality of fluxes of light are lead to an optical deflector via an optical system for incident light and deflected by the optical deflector. Most part of the deflected fluxes of light are lead to the surface via an imaging optical system for scanning the surface, while small part of the deflected fluxes of light are lead to a photodetector to generate a synchronizing signal for controlling the timing of the scanning start of each of the fluxes of light. A slit is arranged between the optical deflector and the photodetector and the slit is inclined relative to the auxiliary scanning direction, whereby the scanning start timings for the plurality of fluxes of light are adjusted. The optical scanning apparatus is used in an image forming apparatus or an electrophotographic printer.
摘要翻译：光学扫描设备能够沿主扫描方向用多个光束扫描表面。在该设备中，多个光束由沿着垂直于主扫描方向的辅助扫描方向以一定间隔排列的多个光源发射。多个光束通过用于入射光的光学系统导向光学偏转器并由光学偏转器偏转。大部分偏转的光通量通过用于扫描表面的成像光学系统导向表面，而偏转的光通量的一小部分通向光电检测器以产生用于控制扫描开始的定时的同步信号的每个光通量。在光偏转器和光检测器之间布置狭缝，并且狭缝相对于辅助扫描方向倾斜，由此调节多个光束的扫描开始定时。该光学扫描设备被用在图像形成设备或电子照相打印机中。

7. 发明授权

EP0872751B1 Variable magnification optical system having image stabilizing function 失效
标题翻译：可变放大率的光学系统，图像稳定
公开(公告)号：EP0872751B1
公开(公告)日：2004-12-22
申请号：EP98104787.1
申请日：1998-03-17
申请人： CANON KABUSHIKI KAISHA
发明人： Hamano, Hiroyuki , Yoshida, Hiroki
IPC分类号： G02B7/28 , G02B27/64
CPC分类号： G02B15/173 , G02B27/646

8. 发明公开

EP1085743A1 Multi-beam scanning optical system and image forming apparatus using it 有权
标题翻译：具有用于图像形成所使用的相同的多个束和装置的光学扫描装置
公开(公告)号：EP1085743A1
公开(公告)日：2001-03-21
申请号：EP00119832.4
申请日：2000-09-12
申请人： CANON KABUSHIKI KAISHA
发明人： Yoshida, Hiroki
IPC分类号： H04N1/053
CPC分类号： H04N1/053 , G02B26/123 , G02B26/125 , H04N1/1135 , H04N1/1911 , H04N2201/0471 , H04N2201/04744 , H04N2201/04749 , H04N2201/04786
摘要： Provided are a multi-beam scanning optical system capable of implementing high-quality printing in relatively simple structure and at high speed, and an image forming apparatus using it. The multi-beam scanning optical system has an incidence optical unit for guiding a plurality of beams emitted from a light source unit having a plurality of light-emitting regions spaced apart from each other in a main scanning direction, to a deflector; a scanning optical unit for focusing the plurality of beams deflected by the deflector, on a surface to be scanned; and a synchronism-detecting optical unit for converging part of the plurality of beams deflected by the deflector, via a return mirror on a slit surface by a lens section, thereafter guiding the beams to a synchronism detector, and controlling timing of a scan start position on the surface to be scanned, by use of a signal from the synchronism detector. The elements are set so as to satisfy Condition (A) where δM is a defocus amount in a main scanning section of the beams guided to the synchronism detector and in a view from the slit surface and δX is a defocus amount at each image height on the surface to be scanned.
摘要翻译：提供能够以相对简单的结构和以高速实现高品质的打印的多光束扫描光学系统，并利用它的图像形成装置。多光束扫描光学系统具有到入射光学单元，用于引导从具有在主扫描方向上彼此间隔开，以偏转发光区域的多个A光源单元发射的光束的多元性; 的扫描光学单元，用于聚焦由所述偏转器偏转光束的多个对被扫描的表面上; 和扫描开始位置的同步检测光学单元，用于通过一透镜部上的狭缝表面会聚由偏转器偏转光束的多个部分，经由返回镜，此后引导光束到一个同步检测器，以及控制定时的表面上进行扫描，通过利用从同步检测器的信号的。这些元件在每个图像设定为满足条件（A）其中，δ，M是在引导到同步检测器和在从狭缝表面和delta X的图的光束的主扫描截面的散焦量的散焦量表面上的高度进行扫描。

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