公开(公告)号：US20050030605A1

公开(公告)日：2005-02-10

申请号：US10801319

申请日：2004-03-16

申请人： Roger Cannon ,  Timothy Green ,  Martin Klement ,  Daniel Pawley ,  Wilson Routt

发明人： Roger Cannon ,  Timothy Green ,  Martin Klement ,  Daniel Pawley ,  Wilson Routt

IPC分类号： G02B26/08 ,  G02B26/10 ,  G05B1/00

CPC分类号： G02B26/0833 ,  G02B26/085 ,  G02B26/105

摘要： An image scanning apparatus and a torsion oscillator are capable of operating across a dynamic range of possible operating frequencies. The image scanning apparatus uses a light source to produce a light beam, and the oscillator scans the light beam through a scanning pattern. The oscillator includes a plate member having a non-rectangular shape. At least one magnet is disposed on the plate. A surface of the plate member includes a reflective surface for reflecting a light beam. A frame is disposed in a spaced apart relation to a lower surface of the plate member. The frame includes at least one coil configured to induce an electromagnetic force on the at least one magnet to thereby oscillate the reflective surface to a rotational angle of oscillation at an oscillation frequency. The system also includes an imaging surface disposed in the path of the scanning pattern so that the light beam scans across the imaging surface, and a mechanical drive to move the imaging surface. A control system controls electric current provided to the at least one coil to achieve the oscillation.

公开(公告)号：US20050013010A1

公开(公告)日：2005-01-20

申请号：US10915837

申请日：2004-08-11

申请人： Roger Cannon ,  Dana Dodds ,  Philip Heink ,  Robert Paterson ,  Daniel Pawley ,  Wilson Routt

发明人： Roger Cannon ,  Dana Dodds ,  Philip Heink ,  Robert Paterson ,  Daniel Pawley ,  Wilson Routt

IPC分类号： G02B3/02 ,  G02B3/00

CPC分类号： G02B3/02

摘要： A lens has a lens body (1), reinforcing extensions (3a, 3b) and a clear aperture (9) surrounded on top and bottom by lens body. The lens is suitable for spot scanning. The lens is made of a water absorbing material, such as most polymers, particularly acrylate polymers. Aluminum sheets as vapor barriers are attached on each side of the lens body. This results in excellent resistance to change or distortion in high humidity environments.

摘要翻译： 透镜具有透镜体（1），加强延伸部（3a，3b）和透明孔（9），透镜体在顶部和底部包围。 镜头适用于点扫。 透镜由吸水材料制成，例如大多数聚合物，特别是丙烯酸酯聚合物。 作为蒸气阻挡层的铝片被附着在透镜体的每一侧上。 这导致在高湿度环境下优异的抗变化或变形性。

公开(公告)号：US20060064019A1

公开(公告)日：2006-03-23

申请号：US10947029

申请日：2004-09-22

申请人： Craig Bush ,  Roger Cannon ,  Martin Klement ,  Daniel Pawley

发明人： Craig Bush ,  Roger Cannon ,  Martin Klement ,  Daniel Pawley

IPC分类号： A61B6/00

CPC分类号： G06K15/1204 ,  G06K15/1219 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/0468 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04768 ,  H04N2201/04789

摘要： In bi-directional imaging, such as bi-directional printing, a driving mechanism scans a light beam through a scan path across an imaging window. A controller enables transmission of video data to a modulator when the light beam is positioned for imaging on the imaging window. Video data is transmitted to the modulator when the light beam is traveling in a forward direction or a reverse direction across the imaging window, whereby a modulated light beam is capable of producing an image when traveling in the forward or reverse directions. The controller adjusts scan durations or image rasterization rates to ensure that each scan is properly aligned with the prior and subsequent scan.

公开(公告)号：US20050093964A1

公开(公告)日：2005-05-05

申请号：US11007723

申请日：2004-12-07

申请人： Martin Klement ,  Daniel Pawley

发明人： Martin Klement ,  Daniel Pawley

IPC分类号： G02B26/10 ,  B41J2/435

CPC分类号： G02B26/105 ,  G02B7/008 ,  G02B26/085

摘要： A method reduces the Q factor of the resonant frequency response of a torsional oscillator system in a laser printer, where the Q factor is expressed as a function of the resonant frequency and 3 dB bandwidth of the frequency response. The frequency response of the torsional oscillator system is a function of at least a rotational inertia, a spring constant and a damping constant. The method includes the steps of decreasing the rotational inertia of the torsional oscillator system by a first factor, and decreasing the spring constant by a second factor that is substantially equal to the first factor. The method generally increases component yields, thereby reducing component costs. Also, laser printers using torsion oscillators having reduced Q factors may be used over a wider speed range. Conversely, a single laser printer model may be used at a single speed, rather than at speeds that vary due to variations in resonant frequency. The method also provides for greater freedom of movement of the operating point of the printer during printer development.

摘要翻译： 一种方法降低了激光打印机中扭转振荡器系统的谐振频率响应的Q因子，其中Q因子表示为谐振频率和频率响应的3 dB带宽的函数。 扭转振荡器系统的频率响应是至少旋转惯量，弹簧常数和阻尼常数的函数。 该方法包括以下步骤：通过第一因素降低扭转振荡器系统的旋转惯性，并将弹簧常数减小基本上等于第一因子的第二因子。 该方法通常提高部件产量，从而降低部件成本。 此外，使用具有降低的Q因子的扭转振荡器的激光打印机可以在更宽的速度范围内使用。 相反，单个激光打印机模型可以以单个速度使用，而不是由于谐振频率的变化而变化的速度。 该方法还提供在打印机开发期间打印机的操作点的更大的自由度。

公开(公告)号：US20050024701A1

公开(公告)日：2005-02-03

申请号：US10629816

申请日：2003-07-29

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.

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：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。