公开(公告)号：US08279250B2

公开(公告)日：2012-10-02

申请号：US12774754

申请日：2010-05-06

Applicant: Yuji Okugawa

Inventor： Yuji Okugawa

IPC: B41J2/385 ,  B41J15/14 ,  B41J27/00

CPC classification number: B41J2/471 ,  G02B26/125 ,  G02B27/0031 ,  G03G15/0435 ,  G03G15/326 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0476

Abstract: A scanning optical device, comprises a light source to emit a light beam; a deflecting section to deflect the emitted light beam so as to scan; an optical element to make the scanning light beam to converge; and a correcting mechanism to correct an attitude of the optical element so as to adjust a convergence position of the scanning light beam; wherein at least a part of the correcting mechanism is arranged between the deflecting section and the optical element.

Abstract translation: 一种扫描光学装置，包括发射光束的光源; 偏转部分，用于偏转发射的光束以便扫描; 使所述扫描光束会聚的光学元件; 以及校正机构，用于校正所述光学元件的姿态，以便调整所述扫描光束的会聚位置; 其中所述校正机构的至少一部分布置在所述偏转部分和所述光学元件之间。

公开(公告)号：US07450142B2

公开(公告)日：2008-11-11

申请号：US11514195

申请日：2006-09-01

Applicant: Haruhiko Nakatsu

Inventor： Haruhiko Nakatsu

IPC: B41J15/14 ,  G02B26/08

CPC classification number: G02B26/125 ,  H04N1/1135 ,  H04N2201/0476 ,  H04N2201/04791

Abstract: In a scanning optical device which deflects a light flux from a light source with a deflection scanning unit to perform light scanning to a body to be scanned through at least one optical member, the scanning optical device is characterized by including a holding member 29, a position adjusting unit, and an abutting unit. The holding member 29 which is swingable holds a diffraction optical element 23 which is of at least one of the optical member. The position adjusting unit swings the holding member 29 to adjust an attitude of the diffraction optical element 23 held by the holding member 29. The abutting unit has a viscoelastic member 33a which abuts on the holding member 29.

Abstract translation: 在利用偏转扫描单元使来自光源的光束偏转的扫描光学装置中，通过至少一个光学构件向要被扫描的主体进行光扫描，扫描光学装置的特征在于包括保持构件29， 位置调整单元和邻接单元。 可摆动的保持构件29保持至少一个光学构件的衍射光学元件23。 位置调整单元摆动保持构件29以调节由保持构件29保持的衍射光学元件23的姿态。 抵接单元具有抵接在保持构件29上的粘弹构件33a。

公开(公告)号：US06768562B1

公开(公告)日：2004-07-27

申请号：US09556478

申请日：2000-04-21

Applicant: Norihisa Takada ,  Takeshi Fujii

Inventor： Norihisa Takada ,  Takeshi Fujii

IPC: H04N104

CPC classification number: H04N1/00567 ,  G02B26/10 ,  G02B26/101 ,  G02B26/105 ,  G02B27/0031 ,  H04N1/047 ,  H04N1/0607 ,  H04N2201/03154 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/0476 ,  H04N2201/04789 ,  H04N2201/04793

Abstract: A method for correcting recording positions of light beams scanned by a light beam scanning apparatus, in which at least one of plural light beams is deflected by an optical deflecting device and all the plural light beams are combined and scanned by a common scanning optical system. The beam position correction data for the optical deflecting device for keeping positions of the light beams constant is obtained by detecting the beam positions before the scanning optical system. The recording positions of respective light beams on a recording surface is also detected to obtain an additional correction data for correcting deviations of the recording positions due to uneven optical power distribution of the light beam or astigmatism of the scanning optical system. The additional correction data is added to the beam position correction data to obtain the final correction data, by which the optical deflecting device is controlled.

Abstract translation: 一种用于校正由光束扫描装置扫描的光束的记录位置的方法，其中多个光束中的至少一个被光学偏转装置偏转，并且所有的多个光束被共同的扫描光学系统组合和扫描。 通过检测扫描光学系统之前的光束位置，获得用于保持光束位置恒定的光学偏转装置的光束位置校正数据。 还检测记录表面上的各个光束的记录位置，以获得用于校正由于光束的不均匀光功率分布或扫描光学系统的散光引起的记录位置的偏差的附加校正数据。 附加校正数据被添加到光束位置校正数据，以获得最终校正数据，通过该校正数据控制光学偏转装置。

公开(公告)号：US5498869A

公开(公告)日：1996-03-12

申请号：US457606

申请日：1995-06-01

Applicant: James J. Appel ,  Thomas L. Paoli

Inventor： James J. Appel ,  Thomas L. Paoli

IPC: G02B26/10 ,  B41J2/47 ,  G02B26/08 ,  G02B26/12 ,  G02B27/00 ,  G02F1/29 ,  G06K15/12 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H01J3/14

CPC classification number: G02B27/0031 ,  B41J2/471 ,  B41J2/473 ,  G02B26/0883 ,  G02B26/127 ,  G06K15/1219 ,  H04N1/0473 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/0476 ,  H04N2201/04763

Abstract: Facet-to-facet pyramidal wobble is corrected without resorting to cylindrical optics by adapting agile beam concepts to provide real-time control of the light beam position on the photoreceptor. The agile beam is provided by either or both of a variable wavelength light source or a variable index of refraction prism. The position of the light beam is determined by either or both of a super linear position detector directly detecting the position of the light beam, or a facet detector and a look-up table for indirectly estimating the position of the light beam. By actively compensating for pyramidal wobble, the passive but expensive and difficult-to-position cylindrical optics can be replaced with cheap and easy-to-position spherical optics.

Abstract translation: 通过适应敏捷光束概念以提供对感光体上的光束位置的实时控制，校正面到面的锥体摆动而不依赖于圆柱形光学元件。 敏捷光束由可变波长光源或可变折射棱镜中的任一个或两者提供。 光束的位置由直接检测光束位置的超线性位置检测器或小面检测器和用于间接估计光束位置的查找表中的任一个或两者来确定。 通过积极补偿锥体摆动，被动但昂贵且难以置换的圆柱形光学元件可以用便宜且易于定位的球面光学器件代替。

公开(公告)号：US5319537A

公开(公告)日：1994-06-07

申请号：US988587

申请日：1992-12-10

Applicant: Edward A. Powers ,  Kenneth R. Ossman ,  Fred F. Hubble, III ,  James P. Martin

Inventor： Edward A. Powers ,  Kenneth R. Ossman ,  Fred F. Hubble, III ,  James P. Martin

IPC: G03G15/01 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/50 ,  H04N1/21 ,  B41J2/435

CPC classification number: G03G15/0152 ,  G03G15/011 ,  G03G15/0163 ,  H04N1/047 ,  H04N1/506 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/0476

Abstract: A Raster Output Scanner (ROS) color printer is formed by providing several ROS imagers adjacent image exposure locations of a photoreceptor belt. Each ROS imager forms a separate color image in response to video input signals with each color image superimposed in registration over the previously formed images. Registration in the process direction is enabled by a quad cell photosensor whose output is continually compared to determine whether process registration deviations from a previously established position are necessary. Correction signals are generated in an iterative fashion until a preselected process registration position is re-established. The quad cell detector is also used for a second function; to produce the start and end of scan signals which enable image registration in the cross-process direction.

Abstract translation: 光栅输出扫描器（ROS）彩色打印机通过在感光带附近的图像曝光位置附近提供若干ROS成像器来形成。 每个ROS成像器响应于视频输入信号形成单独的彩色图像，每个彩色图像被叠加在先前形成的图像上。 在过程方向上的注册由四通道光电传感器实现，四通道光电传感器的输出被不断比较，以确定是否需要与以前建立的位置的过程配准偏差。 校正信号以迭代的方式产生，直到重新建立预选的过程登记位置。 四胞胎检测器也用于第二功能; 以产生扫描信号的开始和结束，其使得能够在交叉处理方向上进行图像配准。

公开(公告)号：US5303080A

公开(公告)日：1994-04-12

申请号：US41730

申请日：1993-04-01

Applicant: Michael J. O'Brien ,  William B. Smith

Inventor： Michael J. O'Brien ,  William B. Smith

IPC: G02B26/10 ,  H04N1/036 ,  H04N1/047 ,  G02B26/08

CPC classification number: G02B26/10 ,  H04N1/036 ,  H04N1/047 ,  H04N2201/0471 ,  H04N2201/0476

Abstract: Beam scanning system that incorporates an actively-controlled optical head, wherein a light beam source and collimating optics are mounted in an active, thermally-compensated assembly. A collimating optics mount preferably in the form of a flexure plate having a three-point elastic hinge is supported on a base plate by a respective number of equally-spaced actuators. The motion of the flexure plate is thereby over constrained and allows the operation of the elastic hinge to benefit from elastic averaging such that motion of the flexure plate may be effected by the actuators individually or in combination. Controlled flexure plate motion may be implemented to compensate for thermal shifts in system focal length, while maintaining radial and angular alignment of the collimating optics relative to the beam source, according to the influence of the individual actuators. Active control of the actuators also allows controlled movement of the collimating lens in two degrees of lateral motion (x and y motions), in addition to a piston or z motion, and tilting or tipping motions. Active control of the actuators is effected according to a control system that uses an influence matrix derived from one or more transfer function matrices to relate the position control signals to the control of desired beam scanning optical performance parameters, such as beam position or beam focus.

Abstract translation: 光束扫描系统包括主动控制的光学头，其中光束源和准直光学器件安装在有源的热补偿组件中。 优选地具有三点弹性铰链的弯曲板形式的准直光学安装件通过相应数量的等间隔的致动器支撑在基板上。 弯曲板的运动由此被过度约束，并且允许弹性铰链的操作受益于弹性平均，使得挠曲板的运动可以由致动器单独地或组合地实现。 可以实施受控挠曲板运动，以根据各个致动器的影响来补偿系统焦距的热偏移，同时保持准直光学器件相对于光束源的径向和角度对准。 除了活塞或z运动以及倾斜或倾倒运动之外，致动器的主动控制还允许准直透镜受到两度横向运动（x和y运动）的运动。 致动器的主动控制根据使用从一个或多个传递函数矩阵导出的影响矩阵的控制系统进行，以将位置控制信号与控制期望的光束扫描光学性能参数（诸如光束位置或光束焦点）相关联。

公开(公告)号：US5287125A

公开(公告)日：1994-02-15

申请号：US740543

申请日：1991-08-05

Applicant: James J. Appel ,  Kenneth R. Ossman

Inventor： James J. Appel ,  Kenneth R. Ossman

IPC: B41J2/44 ,  G02B26/12 ,  G06K15/12 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  H04N1/21

CPC classification number: H04N1/0473 ,  G06K15/1219 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/0476

Abstract: Compensation for process direction photoreceptor motion in a Raster Output Scan system is provided by moving the cylinder lens located between the laser source and a rotating spot scanning mechanism, e.g., a polygon. The cylinder lens is moved in the process direction in response to error signals generated by a SOS detector and timing marks on the photoreceptor drum surface, or an encoder on the drum shaft. The lens movement is obtained by sending motion error signals to a piezoelectric actuator which increases in length to impart the desired motion to the cylinder lens.

Abstract translation: 通过移动位于激光源和旋转点扫描机构（例如多边形）之间的柱面透镜来提供光栅输出扫描系统中的处理方向感光体运动的补偿。 响应于由SOS检测器产生的误差信号和感光鼓表面上的定时标记或者鼓轴上的编码器，柱面透镜在处理方向上移动。 通过将运动误差信号发送到长度增加的压电致动器来获得透镜运动，以赋予圆柱透镜所需的运动。

公开(公告)号：US5204523A

公开(公告)日：1993-04-20

申请号：US747889

申请日：1991-08-19

Applicant: James J. Appel ,  Thomas L. Paoli

Inventor： James J. Appel ,  Thomas L. Paoli

IPC: G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H01S3/10 ,  H01S5/06 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12

CPC classification number: H04N1/0473 ,  G06K15/1219 ,  G06K15/1257 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/0476

Abstract: In an optical output device wherein a beam of light is generated and focused to a spot upon an image plane, such as a photoreceptor in a xerographic printing apparatus, an method for controlling the position of the spot in the slow scan direction of the image plane including the steps of generating a beam of light, deflecting the beam of light by way of an optical beam deflecting elements such that the optical beam deflecting element deflects the path of the beam of light by an amount that is determined by the wavelength of the light beam, and varying the wavelength of the beam of light such that the amount that the beam of light is deflected by the optical beam deflecting element is varied to achieve control of the position of the spot at which the beam of light is incident on the image plane in the slow scan direction. The invention may be embodied in an apparatus which includes a light source capable of emitting the beam of light at a selected one of at least two selectable wavelengths and prism for refracting the beam of light an amount which depends on the wavelength of the beam of light, the amount of refraction determining the position of the spot in the slow scan direction on the image plane. The light source may be of the solid state laser type, and may emit a plurality of beams of light the spots from which may be individually or together selectively positioned in the slow scan direction on the image plane. The beam deflecting element may be a semiconductor prism, for example of AlGaAs, and have a controllable bias applied thereto to allow further control of spot positioning.

Abstract translation: 在其中产生光束并将其聚焦到图像平面上的光斑（例如静电印刷装置中的感光体）的光输出装置中，用于控制图像的慢扫描方向上的光点位置的方法 包括产生光束的步骤，通过光束偏转元件偏转光束，使得光束偏转元件将光束的路径偏转由光的波长确定的量 并且改变光束的波长，使得光束被光束偏转元件偏转的量被改变，以实现光束入射到图像上的光斑的位置的控制 平面在慢扫描方向。 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的所选择的一个发射光束的光源和棱镜，用于折射光束，其量取决于光束的波长 ，折射率确定图像平面上慢扫描方向上的斑点的位置。 光源可以是固体激光器类型，并且可以发射多个光束，在该平面上可以单独地或一起选择性地定位在慢扫描方向上。 光束偏转元件可以是例如AlGaAs的半导体棱镜，并且具有施加到其上的可控偏压以允许进一步控制光斑定位。

公开(公告)号：US07126744B2

公开(公告)日：2006-10-24

申请号：US11136348

申请日：2005-05-24

Applicant: Arthur Monroe Turner ,  Mark W. Heaton

Inventor： Arthur Monroe Turner ,  Mark W. Heaton

IPC: G02B26/00

CPC classification number: G02B26/085 ,  G02B26/105 ,  G09G3/02 ,  H04N2201/0476

Abstract: Apparatus and methods for removing jitter and stabilizing the feed back system of a torsional hinged device with minimal changes to the system. The stabilization is accomplished by introducing a selected amount of lateral motion (in addition to the rotational motion) by creating asymmetry in the oscillating device or the drive torque applied to the device.

Abstract translation: 用于消除抖动并稳定扭转铰链装置的反馈系统的装置和方法，其具有对系统的最小变化。 通过在振荡装置中产生不对称性或施加到装置的驱动转矩引入选定量的横向运动（除了旋转运动之外）来实现稳定。

公开(公告)号：US20030137580A1

公开(公告)日：2003-07-24

申请号：US10225482

申请日：2002-08-22

Inventor： Katsuto Sumi ,  Fumiaki Miyamaru

IPC: B41J015/14 ,  B41J027/00

CPC classification number: H04N1/00018 ,  G02B26/10 ,  H04N1/00034 ,  H04N1/0005 ,  H04N1/00082 ,  H04N1/047 ,  H04N1/0607 ,  H04N1/0635 ,  H04N2201/02439 ,  H04N2201/0476 ,  H04N2201/04794

Abstract: The light beam scanning method and apparatus perform light beam scanning of a cylindrical internal surface scanning type, a cylindrical external surface scanning type, and a plane scanning type, where when a sheet-like object to be scanned is scanned by a light beam emitted from a light source, at least one of lateral displacement and longitudinal displacement of a light beam and aberration in an optical system is compensated by controlling a wave front of the light beam with a wavefront control device. Also, when the lateral displacement, longitudinal displacement, and the aberration are caused by change of an environmental temperature, it is possible to measure the environmental temperature and to perform compensation through the control of the wave front by the wavefront control device based on the measured environmental temperature. Also, when scanning is performed using a plurality of light beams, it is possible to align scanning positions of the plurality of light beams in an auxiliary scanning direction in a parallel manner by displacing the scanning positions through the control of the wave front of at least one light beam using the wavefront control device.

Abstract translation: 光束扫描方法和装置执行圆柱形内表面扫描型，圆柱形外表面扫描型和平面扫描型的光束扫描，其中当被扫描的片状物体被从 光源，通过用波前控制装置控制光束的波前来补偿光束的横向位移和纵向位移以及光学系统中的像差中的至少一个。 此外，当横向位移，纵向位移和像差由环境温度的变化引起时，可以通过波前控制装置基于测量的环境温度来测量环境温度并通过波前控制来控制波前的补偿 环境温度。 此外，当使用多个光束进行扫描时，可以通过平移的方式使辅助扫描方向上的多个光束的扫描位置通过至少波前的控制来移动扫描位置来对齐 一个光束使用波前控制装置。