公开(公告)号：US07045773B2

公开(公告)日：2006-05-16

申请号：US10892191

申请日：2004-07-16

申请人： Mitsuo Suzuki ,  Seizo Suzuki ,  Satoru Itoh

发明人： Mitsuo Suzuki ,  Seizo Suzuki ,  Satoru Itoh

IPC分类号： H01J3/14 ,  H01J40/14 ,  H01J5/16

CPC分类号： G02B26/125 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04713 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04749 ,  H04N2201/04763 ,  H04N2201/04781 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

摘要： An optical scanning apparatus is provided, in which the optical scanning apparatus includes: a light source emitting an optical beam; an optical deflection unit deflecting the optical beam emitted from the light source; a scanning optical arrangement scanning a scanned surface by the optical beam in a main scanning direction; and an optical beam detection unit detecting the optical beam moving in the main scanning direction. The optical beam detection unit includes a first photodetector and a second photodetector, and the first photodetector including a first part and a second part that are electrically connected, wherein a first gap is formed between an edge of the first part and a first edge of the second photodetector, a second gap is formed between an edge of the second part and a second edge of the second photodetector, and the first gap and the second gap are not parallel to each other.

摘要翻译： 提供了一种光学扫描装置，其中光学扫描装置包括：发射光束的光源; 光偏转单元偏转从光源发射的光束; 扫描光学装置，沿主扫描方向由光束扫描扫描表面; 以及光束检测单元，检测沿主扫描方向移动的光束。 光束检测单元包括第一光电检测器和第二光电检测器，并且第一光电检测器包括电连接的第一部分和第二部分，其中在第一部分的边缘与第一部分的第一边缘之间形成第一间隙 第二光电检测器，在第二部分的边缘和第二光电检测器的第二边缘之间形成第二间隙，并且第一间隙和第二间隙不彼此平行。

公开(公告)号：US06166376A

公开(公告)日：2000-12-26

申请号：US224021

申请日：1998-12-31

申请人： Makoto Kamioka

发明人： Makoto Kamioka

IPC分类号： G02B26/10 ,  G02B26/12 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/191 ,  H01J3/14 ,  H04N1/04

CPC分类号： G02B26/123 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1911 ,  H04N2201/0476 ,  H04N2201/04763

摘要： A multi-beam scanning device in which generation of differences in scanning speed and curved image planes among a plurality of beams is prevented and pitch adjustment for the plurality of beams in the sub-scanning direction can easily be performed. Cylindrical lenses are provided on respective optical paths extending from a plurality of light sources to a beam splitter, and positions of the cylindrical lenses are adjusted by optical path correcting mechanisms for adjustment of position of the respective beams in the sub-scanning direction. A sensor section receives the respective beams to output to a control circuit a detection signal corresponding to a light receiving position. The control circuit drives an optical path correcting drive circuit based on a predetermined threshold and the output signal to control actions of the optical path correcting mechanisms.

摘要翻译： 能够防止在多个光束之间产生扫描速度和弯曲像面的差异的多光束扫描装置，并且能够容易地进行副扫描方向上的多个光束的俯仰调整。 圆柱透镜设置在从多个光源延伸到分束器的相应光路上，并且通过用于调节各个光束在副扫描方向上的位置的光路校正机构来调节柱面透镜的位置。 传感器部分接收各个光束，以向控制电路输出对应于光接收位置的检测信号。 控制电路基于预定阈值驱动光路校正驱动电路和输出信号，以控制光路校正机构的动作。

公开(公告)号：US5627579A

公开(公告)日：1997-05-06

申请号：US350051

申请日：1994-11-29

申请人： Tibor Fisli

发明人： Tibor Fisli

IPC分类号： B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  G02B26/12 ,  G03G15/01 ,  G03G15/04 ,  G06K15/12 ,  H04N1/047 ,  H04N1/06 ,  H04N1/113 ,  H04N1/12 ,  H04N1/50 ,  G01D15/14 ,  G01D15/06

CPC分类号： H04N1/506 ,  B41J2/47 ,  G02B26/123 ,  G03G15/011 ,  G06K15/129 ,  H04N1/0473 ,  G03G2215/0119 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04763

摘要： A raster scanning optical system and method for adjusting a scan line location on a light receiving member by a desired amount. A photoreceptor receives a light beam as the photoreceptor is advancing in a slow scan direction. A polygon mirror scans the light beam across the photoreceptor at a scan line location extending in a fast scan direction. A light transmissive plate is located in the path of the light beam between the polygon mirror and the photoreceptor. The light transmissive plate is adjusted by an adjusting device to displace the scan line location on the photoreceptor by the desired amount in a direction parallel to the slow scan direction.

摘要翻译： 一种光栅扫描光学系统和方法，用于将受光元件上的扫描线位置调整所需的量。 当感光体在慢扫描方向前进时，感光器接收光束。 多面镜在沿着快速扫描方向延伸的扫描线位置处扫描感光体上的光束。 透光板位于多面镜和感光体之间的光束的路径中。 通过调节装置调整透光板，以使扫描线位置在平行于慢扫描方向的方向上移动感光体上所需的量。

公开(公告)号：US5363128A

公开(公告)日：1994-11-08

申请号：US951744

申请日：1992-09-25

申请人： John R. Andrews

发明人： John R. Andrews

IPC分类号： G02B26/10 ,  G02B26/12 ,  G02F1/29 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  G01D9/42

CPC分类号： H04N1/0473 ,  G02B26/123 ,  G02F1/29 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/04763

摘要： An optical element for the selective deflection of a scan line in a process direction in a raster output scanner (ROS) electrophotographic printer. The optical element includes a chamber containing a nematic liquid crystal material having a variable index of refraction as a function of voltage applied thereacross. The ROS includes a control and feedback system coupled to a variable voltage source for applying a biasing voltage across the optical element to control the variable index of refraction of the optical element for selectively deflecting the scan line in the process direction.

摘要翻译： 用于在光栅输出扫描仪（ROS）电子照相打印机中沿扫描线选择性地偏转扫描线的光学元件。 光学元件包括具有作为其上施加的电压的函数的可变折射率的向列型液晶材料的室。 ROS包括耦合到可变电压源的控制和反馈系统，用于跨光学元件施加偏置电压，以控制光学元件的可变折射率，以便在工艺方向上选择性地偏转扫描线。

公开(公告)号：US5153644A

公开(公告)日：1992-10-06

申请号：US747301

申请日：1991-03-19

申请人： Eugene L. Yang ,  James B. O'Leary

发明人： Eugene L. Yang ,  James B. O'Leary

IPC分类号： H04N1/19 ,  G03G15/00 ,  G06K15/12 ,  H04N1/04 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12

CPC分类号： H04N1/0473 ,  G03G15/5033 ,  G06K15/1219 ,  G03G2215/00075 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/046 ,  H04N2201/0471 ,  H04N2201/04756 ,  H04N2201/04763

摘要： Correction of image distortion in a reproduction machine due to vibrational or speed distortions in or between a moving photoreceptor and an imaging device projecting raster lines on the photoreceptor as it moves past the imaging device, utilizing in encoder for sensing the speed of the photoreceptor and also the relative vibrational motion between the photoreceptor and the imaging device and providing electrical signals to a signal separator separating the electrical signals into lower and higher frequency signals, and a servo motor for driving the photoreceptor and compensating for the lower frequency increases or decreases in the speed of the photoreceptor, the servo motor being driven by the separated lower frequency signals; and an optical system for pivoting the projected raster lines to compensate for the image distortions which are of the higher frequencies, the optical system being driven by the higher frequency signals from the signal separator.

公开(公告)号：US5103334A

公开(公告)日：1992-04-07

申请号：US623156

申请日：1990-11-06

申请人： Melvin E. Swanberg

发明人： Melvin E. Swanberg

IPC分类号： G02B26/12 ,  G06K15/12 ,  H04N1/053 ,  H04N1/113 ,  H04N5/257

CPC分类号： H04N1/053 ,  G06K15/1204 ,  H04N1/1135 ,  H04N2201/04763 ,  Y10S359/90

摘要： An improved flying spot scanner (48, 68) is disclosed, which is particularly applicable to use with a raster output scanner (ROS). The primary scan provided by an ROS is a continuous scan of the optical beam (26) along the scan line (40). The present invention provides a discontinuous pixel-by-pixel scan in the opposite direction to the continuous primary scan. Thus each pixel is positioned statically at its correct location on the photoreceptor (54) during the pixel's duration. At the end of each pixel's duration, the beam snaps rapidly to the position of the next pixel. Use of this invention will form a non-blurred image of each pixel on the photoreceptor (54). The invention uses an optical deflector (50, 70) to drive the beam opposite to the direction of the primary beam scan during each pixel's duration. The optical deflector (50, 70) may be an angle deflector (50) when used in a collimated optical beam (60), or it may be a translation deflector (70) when used in a non-collimated optical beam (72). This invention provides a flying spot scanner (48, 68) in which all the gray scale detail and resolution available in a pixel is preserved, with no smearing or blurring of pixels, independent of the content of adjacent pixels.

公开(公告)号：US08189171B2

公开(公告)日：2012-05-29

申请号：US12293822

申请日：2007-03-16

申请人： Naoto Kinjo ,  Katsuto Sumi ,  Ryo Kitano

发明人： Naoto Kinjo ,  Katsuto Sumi ,  Ryo Kitano

IPC分类号： G03B27/52 ,  G03B27/54

CPC分类号： G03F7/70791 ,  G01D1/00 ,  G01D15/00 ,  G01D21/00 ,  H04N1/0473 ,  H04N1/1008 ,  H04N1/113 ,  H04N1/19505 ,  H04N1/19573 ,  H04N2201/04713 ,  H04N2201/0472 ,  H04N2201/04744 ,  H04N2201/04763

摘要： It is possible to set an optical magnification capable of making a recording position shift amount with respect to Y direction of the plotting point formed by a micro mirror within an allowance range from the relationship between a Y-direction distance between mirror images obtained by projecting micro mirrors constituting a DMD onto a substrate, an inclination angle of the DMD, an image pattern recording pitch, and an optical magnification.

摘要翻译： 可以设置光学倍率，该光学倍率能够根据由微镜投影的镜像之间的Y方向距离之间的关系，将由微镜形成的绘图点的Y方向的记录位置偏移量设定在允许范围内 在基板上构成DMD的反射镜，DMD的倾斜角，图像图案记录间距和光学倍率。

公开(公告)号：US06320682B1

公开(公告)日：2001-11-20

申请号：US09228908

申请日：1999-01-11

申请人： Mitsuo Azumai ,  Kouichi Takaki

发明人： Mitsuo Azumai ,  Kouichi Takaki

IPC分类号： H04N146

CPC分类号： H04N1/506 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02439 ,  H04N2201/0471 ,  H04N2201/04722 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04746 ,  H04N2201/04749 ,  H04N2201/04763 ,  H04N2201/04786 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

摘要： In an apparatus for forming multi-color image provided with a rotatable image carrying member and a plurality of image forming means each having a charging device, a scanning exposure device and a developing device; each scanning exposure device includes a beam generator and a polygonal mirror. The apparatus is further provided with a first sensor for detecting the beam passing at a start reference position on a peripheral surface of the rotatable image carrying member and for outputting a start reference signal; a second sensor for detecting the beam passing at an end reference position on the peripheral surface and for outputting a stop reference signal; and a controller to measure a time between the start reference signal and the stop reference signal and to control a frequency of clock pulses to transmit image signals for each scanning exposure device on the basis of the measured time of each scanning exposure device.

摘要翻译： 在用于形成具有可旋转图像承载构件的多色图像的装置和具有充电装置，扫描曝光装置和显影装置的多个图像形成装置中; 每个扫描曝光装置包括光束发生器和多面镜。 该装置还设置有第一传感器，用于检测在可旋转图像承载构件的外围表面上的起始基准位置处的光束，并输出起始参考信号; 第二传感器，用于检测在外围表面上的端部基准位置通过的光束，并输出停止参考信号; 以及控制器，用于测量开始参考信号和停止参考信号之间的时间，并且基于每个扫描曝光装置的测量时间来控制用于每个扫描曝光装置传送图像信号的时钟脉冲的频率。

公开(公告)号：US5821971A

公开(公告)日：1998-10-13

申请号：US673587

申请日：1996-07-01

申请人： Russell B. Rauch ,  Anthony Ang ,  Edward Mycek

发明人： Russell B. Rauch ,  Anthony Ang ,  Edward Mycek

IPC分类号： B41J2/44 ,  G03G15/01 ,  G03G21/14 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/50 ,  B41J2/385

CPC分类号： H04N1/506 ,  G03G15/0152 ,  G03G15/0163 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04763

摘要： The present invention is directed to a precise method of registering a plurality of ROS imagers, so as to form sequential registered images on a photoreceptor belt in a single pass. Pairs of belt holes are formed in the photoreceptor belt, outside the image area and outside of the scan width of the ROS imagers. A pair of light sources are incorporated into the post polygon optics of each ROS imager so as to produce a light spot at the photoreceptor surface which will periodically illuminate the holes on the belt. As the leading edge of the belt holes advances into the beams, detectors placed beneath the belt and beneath the exposure station provide signals representing the exposure level of the light source output. The position of a transmissive optical element with no optical power, subsequent to each of said ROS imagers, is adjusted in response to registration error signals generated by said photodetecting means to adjust the position of said scan lines. The detectors produce a current output representative of the exposure level. The current output is converted into page sync signals which are reproducible through each of the imaging stations to produce registration of the first scan line of each image sequence.

摘要翻译： 本发明涉及一种用于登记多个ROS成像器的精确方法，以便在单次通过中在感光带上形成顺序记录的图像。 在感光带上形成有一对皮带孔，在图像区域外部和ROS成像器的扫描宽度之外。 一对光源被并入每个ROS成像器的后多边形光学器件中，以便在感光体表面处产生将周期性地照射带上的孔的光斑。 当带孔的前缘进入梁时，置于皮带下方并位于曝光台下方的探测器提供表示光源输出的曝光水平的信号。 响应于由所述光电检测装置产生的对准误差信号来调整每个所述ROS成像器之后的没有光功率的透射光学元件的位置，以调整所述扫描线的位置。 检测器产生代表曝光水平的电流输出。 当前输出被转换成可通过每个成像站再现的页同步信号，以产生每个图像序列的第一扫描线的登记。

公开(公告)号：US5461412A

公开(公告)日：1995-10-24

申请号：US96357

申请日：1993-07-23

申请人： Thomas L. Paoli ,  James J. Appel

发明人： Thomas L. Paoli ,  James J. Appel

IPC分类号： B41J2/47 ,  H04N1/047 ,  H04N1/113 ,  B41J2/43

CPC分类号： B41J2/473 ,  H04N1/0473 ,  H04N1/1135 ,  H04N2201/04712 ,  H04N2201/04763

摘要： In an optical output device in which a beam of light is generated, focused to a spot, and scanned across an image plane to form a scan line, scan line curvature caused by offset between at least one light source and an optical axis of the device is corrected. The invention may be embodied in an apparatus that includes a light source capable of emitting the beam of light at a selected one of at least two selectable wavelengths and a deflecting element such as a prism that refracts the beam of light by an amount that depends on the wavelength of the beam.

摘要翻译： 在其中产生光束的光输出装置中，聚焦到一个点上，并在图像平面上扫描以形成扫描线，由装置的至少一个光源和光轴之间的偏移引起的扫描线曲率 被更正。 本发明可以体现在一种装置中，该装置包括能够以至少两个可选波长中选定的一个发射光束的光源和一个偏转元件，例如将棱镜折射光束的偏转量取决于 波束的波长。