公开(公告)号：US06836280B2

公开(公告)日：2004-12-28

申请号：US10235354

申请日：2002-09-05

申请人： Roger Cannon ,  Christopher Chee ,  Robert Paterson

发明人： Roger Cannon ,  Christopher Chee ,  Robert Paterson

IPC分类号： G02B2608

CPC分类号： G02B26/123 ,  B41J2/473

摘要： A collimation assembly for use in a laser scanning unit is provided. Methods for aligning collimation and pre-scan assemblies in a laser scanning unit are further provided. Also provided are alignment structures for use in aligning collimation and pre-scan assemblies in a laser scanning unit.

公开(公告)号：US20070242126A1

公开(公告)日：2007-10-18

申请号：US11279580

申请日：2006-04-13

申请人： Roger Cannon ,  Daniel Pawley ,  Philip Riggs

发明人： Roger Cannon ,  Daniel Pawley ,  Philip Riggs

IPC分类号： B41J2/47

CPC分类号： B41J2/471

摘要： Apparatus for aligning a scanner assembly in a laser scanning unit for an image forming device. A MEMS torsion oscillator is attached to a spherical base that is received by a socket in a laser scanning unit. The pivotal center of the scanner coincides with the center of the spherical base such that the center of the scanner does not move as the scanner is aligned in the skew, process, and scan directions. In various embodiments, the aligned relationship of the spherical base to the socket is maintained by an adhesive, a through-bolt, or a plurality of spring-biased adjustment screws. The configuration and location of the adjustment screws is such that adjustment of the scanner assembly is accomplished without blocking the laser beam used for alignment.

摘要翻译： 用于对准用于图像形成装置的激光扫描单元中的扫描器组件的装置。 MEMS扭转振荡器附接到由激光扫描单元中的插座接收的球形基座。 扫描仪的枢转中心与球形基座的中心重合，使得扫描仪的中心在扫描仪在偏斜，过程和扫描方向上对齐时不会移动。 在各种实施例中，球形基座与插座的对准关系由粘合剂，贯穿螺栓或多个弹簧偏置的调节螺钉来维持。 调整螺钉的配置和位置使得扫描器组件的调整是在不阻挡用于对准的激光束的情况下完成的。

公开(公告)号：US20070008401A1

公开(公告)日：2007-01-11

申请号：US11176056

申请日：2005-07-07

申请人： Roger Cannon ,  Daniel Klemer

发明人： Roger Cannon ,  Daniel Klemer

IPC分类号： B41J15/14 ,  B41J27/00

CPC分类号： B41J2/471 ,  G02B26/0833 ,  G02B26/105 ,  H04N1/1135 ,  Y10S359/90

摘要： A scanning apparatus for a printer or similar instrument. A multiharmonic oscillator is used to provide a composite motion of a laser beam or other light beam to scan an imaging surface. The multiharmonic oscillator may have multiple sections each having a different resonant frequency. One section includes a reflector that intercepts the light beam, and drive electronics move the reflector so the light beam scans the imaging surface. Linear and complex non-linear motions of the light beam may be achieved. Microelectromechanical systems (MEMS) technology may be used to fabricate the oscillator.

摘要翻译： 用于打印机或类似仪器的扫描装置。 多谐振荡器用于提供激光束或其他光束的复合运动以扫描成像表面。 多谐振荡器可以具有各自具有不同谐振频率的多个部分。 一个部分包括拦截光束的反射器，驱动电子装置使反射器移动，使得光束扫描成像表面。 可以实现光束的线性和复杂的非线性运动。 微机电系统（MEMS）技术可用于制造振荡器。

公开(公告)号：US20050185235A1

公开(公告)日：2005-08-25

申请号：US11109386

申请日：2005-04-19

申请人： Roger Cannon ,  Daniel Pawley

发明人： Roger Cannon ,  Daniel Pawley

IPC分类号： G02B26/10 ,  G02B26/08

CPC分类号： G02B26/105 ,  Y10S359/90

摘要： An optical scanning system including a resonant oscillating device having a first magnetic field and a mirrored surface. The system includes first and second light sources for directing first and second beams of light to the mirrored surface of the resonant oscillating device to provide first and second reflected scan beams. The second reflected scan beam is offset a first distance from the first reflected scan beam. A second magnetic field is included for interacting with the first magnetic field to provide torque to the resonant oscillating device for scanning the first and second reflected scan beams across a surface to provide first and second scan lines on the surface substantially simultaneously as the resonant oscillating device oscillates under the influence of the first and second magnetic fields. The optical scanning system is effective to increase scan efficiency of the resonant oscillating device over that of a system using a single light source.

摘要翻译： 一种光学扫描系统，包括具有第一磁场和镜像表面的共振振荡装置。 该系统包括用于将第一和第二光束引导到谐振振荡装置的镜面的第一和第二光源，以提供第一和第二反射扫描光束。 第二反射扫描光束偏离第一反射扫描光束的第一距离。 包括用于与第一磁场相互作用的第二磁场以向谐振振荡装置提供扭矩，用于跨越表面扫描第一和第二反射扫描光束，从而基本上同时提供表面上的第一和第二扫描线作为共振振荡装置 在第一和第二磁场的影响下振荡。 光学扫描系统有效地提高谐振振荡装置的扫描效率超过使用单个光源的系统的扫描效率。

公开(公告)号：US20050134143A1

公开(公告)日：2005-06-23

申请号：US11034168

申请日：2005-01-12

申请人： Roger Cannon ,  Wilson Routt

发明人： Roger Cannon ,  Wilson Routt

IPC分类号： G02B26/10 ,  G02B26/08

CPC分类号： G02B26/105

摘要： An optical apparatus compensates for imaging errors associated with the sinusoidal angular scan rate of a light beam reflected from a bidirectional scanning torsion oscillator. The compensation is achieved by a combination of pre-scan optics positioned between the source of the light beam and the scanning torsion oscillator, and post-scan optics positioned between the scanning torsion oscillator and an imaging surface of an imaging device. Based on the optical characteristics of its components, the post-scan optical system causes deflection of the light beam in the scan direction. To compensate for the sinusoidal scan rate, the deflection caused by the post-scan optical system is greater at the opposing edge positions of the imaging surface than at a central position. In this manner, the scan rate of the light beam at the first and second edge positions is substantially equivalent to the scan rate at the central position. The pre-scan optical system directs the light beam onto the reflective surface of the torsion oscillator in a manner that compensates for divergence of the light beam in the scan direction caused by the post-scan optical system.

摘要翻译： 光学装置补偿与从双向扫描扭转振荡器反射的光束的正弦角扫描速率相关联的成像误差。 补偿通过位于光束源和扫描扭转振荡器之间的预扫描光学器件和位于扫描扭转振荡器和成像装置的成像表面之间的后扫描光学器件的组合来实现。 基于其组件的光学特性，后扫描光学系统导致光束在扫描方向上的偏转。 为了补偿正弦扫描速率，由扫描后光学系统引起的偏转在成像表面的相对边缘位置处比在中心位置处更大。 以这种方式，第一和第二边缘位置处的光束的扫描速率基本上等于在中心位置处的扫描速率。 预扫描光学系统以补偿由扫描后光学系统引起的扫描方向上的光束发散的方式将光束引导到扭转振荡器的反射表面上。