公开(公告)号：US5113202A

公开(公告)日：1992-05-12

申请号：US561131

申请日：1990-08-01

申请人： Robert P. Loce ,  James J. Appel

发明人： Robert P. Loce ,  James J. Appel

IPC分类号： G03G15/01 ,  G03G15/02 ,  G03G15/04 ,  G06K15/12 ,  H04N1/50

CPC分类号： H04N1/504 ,  G06K15/129

摘要： A single pass highlight color printing system is enabled by utilizing the disparity between the on-time of a printing system and the on-time of an optical image bar. The image bar output is adapted to be separated into two image outputs which expose two separate areas of a photoreceptor. Each exposed area is developed by a toner of a desired color and the developed image, having two colors thereon, is transferred to a copy sheet to form a two-color output copy.

公开(公告)号：US5089908A

公开(公告)日：1992-02-18

申请号：US735664

申请日：1991-07-26

申请人： Ronald E. Jodoin ,  Robert P. Loce ,  William L. Lama ,  James D. Rees ,  Abd-El-Fattah A. Ibrahim ,  James J. Appel

发明人： Ronald E. Jodoin ,  Robert P. Loce ,  William L. Lama ,  James D. Rees ,  Abd-El-Fattah A. Ibrahim ,  James J. Appel

IPC分类号： G02B26/12 ,  H04N1/29

CPC分类号： G02B26/123 ,  H04N1/29

摘要： A multiple diode laser array used in a ROS scanning system is modified to reduce the effects of undesirable spatial exposure variation at the surface of certain type of layered, semi-transparent photoreceptors. The spatial absorption variation is later manifested as a "plywooding" pattern formed on output prints derived from the exposed photoreceptor. The laser array is modified to form a merged scanning beam at the photoreceptor surface of two or more diode outputs, each output operating at a different wavelength than the other. In one embodiment, a plurality of diodes, each at a different wavelength, are sequentially addressed, and an image of each diode is scanned across the photoreceptor which results in an exposure distribution that would be similar to that formed by an incoherent beam.

摘要翻译： 修改了在ROS扫描系统中使用的多重二极管激光器阵列，以减少某些类型的分层半透明感光体表面的不期望的空间曝光变化的影响。 空间吸收变化后来表现为在从曝光的感光体得到的输出印刷品上形成的“胶合”图案。 修改激光器阵列以在两个或更多个二极管输出的感光体表面处形成合并的扫描光束，每个输出的操作波长不同于另一个。 在一个实施例中，每个处于不同波长的多个二极管被顺序地寻址，并且每个二极管的图像跨越感光体扫描，导致与由非相干光束形成的曝光分布相似的曝光分布。

公开(公告)号：US06429957B1

公开(公告)日：2002-08-06

申请号：US09534530

申请日：2000-03-27

申请人： Susan E. Dunn ,  James J. Appel ,  John A. Durbin

发明人： Susan E. Dunn ,  James J. Appel ,  John A. Durbin

IPC分类号： G02B2608

CPC分类号： G02B26/124

摘要： Pre-polygon optics are provided which consist of a compact design such that the number of pre-polygon elements in the pre-polygon optics is reduced while achieving desired light beam characteristic. The pre-polygon optics may consist of a hybrid toroidal diffractive optical element, refractive cross-cylindrical optical elements, refractive spherical and cylindrical optical elements, a refractive sagittal cylindrical optical element or a refractive tangential cylindrical optical element. Accordingly, advantages such as lower cost and ease of alignment are achieved.

摘要翻译： 提供了前多边形光学器件，其由紧凑的设计组成，使得在预多边形光学器件中的前多边形元件的数量减少同时实现期望的光束特性。 前多边形光学元件可以由混合环形衍射光学元件，折射圆柱形光学元件，折射球形和圆柱形光学元件，折射矢状圆柱形光学元件或折射切向圆柱形光学元件组成。 因此，实现了较低成本和易于对准的优点。

公开(公告)号：US6144478A

公开(公告)日：2000-11-07

申请号：US210187

申请日：1998-12-11

申请人： William J. Nowak ,  James J. Appel ,  Edward C. Bock

发明人： William J. Nowak ,  James J. Appel ,  Edward C. Bock

IPC分类号： G02B26/12 ,  G02B26/08

CPC分类号： G02B26/128

摘要： Raster output scanners having piezoelectric-activated lens movers comprised of a mounting base, an electrically operated piezoelectric element connected to the mounting base, a flexible linkage having a lens mount, and a lens attached to the lens mount. The flexible linkage includes flexible arms that can flex in the predominate direction of motion of the piezoelectric element, but that are substantially rigid in another direction. The flexible linkage is mounted such that the flexible arms bias the lens toward the piezoelectric element. Expansion and contraction of the piezoelectric element, combined with the bias of the flexible arms cause the lens mount and its attached lens to follow the expansion and contraction of the piezoelectric element. The rigidity of the flexible arms hold the lens in the proper focal plane. Beneficially, the piezoelectric element is driven so as to compensate for scan line position errors.

摘要翻译： 具有压电激活透镜移动器的光栅输出扫描器包括安装基座，连接到安装基座的电操作压电元件，具有透镜座的柔性连接器和附接到透镜座的透镜。 柔性连接件包括可在压电元件的主要运动方向上弯曲的柔性臂，但是在另一个方向上基本上是刚性的。 柔性联动装置被安装成使得柔性臂将透镜偏压到压电元件。 压电元件的膨胀和收缩与柔性臂的偏压相结合导致透镜座和其附接的透镜跟随压电元件的膨胀和收缩。 柔性臂的刚度将透镜保持在适当的焦平面上。 有利地，压电元件被驱动以补偿扫描线位置误差。

公开(公告)号：US5444239A

公开(公告)日：1995-08-22

申请号：US217822

申请日：1994-03-25

申请人： Aron Nacman ,  James J. Appel ,  Andrew M. Strauch

发明人： Aron Nacman ,  James J. Appel ,  Andrew M. Strauch

IPC分类号： G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H04N1/053 ,  H04N1/113 ,  G01J1/20

CPC分类号： G06K15/1219 ,  G02B26/122 ,  H04N1/053 ,  H04N1/1135 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04786

摘要： A fiber optic system is used in a laser ROS scanning system to generate a start of scan signal. In one embodiment, a single optical fiber is positioned at the beginning of a scan line sweep. The fiber transmits a portion of a scan beam energy to a photodetector located on a local electronics board. The photodiode generates an output signal which is sent as an input to a high speed comparator. A second input to the comparator is a divided down and delayed analog of the photodetector output signal. The comparator compares the two voltage wave forms and generates electrical signals at the precise time the two wave forms intersect or crossover. The comparator output is used to initiate the SOS signal of a gas or laser diode ROS.

摘要翻译： 在激光ROS扫描系统中使用光纤系统来产生扫描信号的开始。 在一个实施例中，单个光纤位于扫描线扫描的开始处。 光纤将扫描光束能量的一部分传输到位于本地电子板上的光电探测器。 光电二极管产生作为输入发送到高速比较器的输出信号。 比较器的第二个输入是光电检测器输出信号的分频和延迟模拟。 比较器比较两个电压波形，并在两个波形相交或交叉的精确时间产生电信号。 比较器输出用于启动气体或激光二极管ROS的SOS信号。

公开(公告)号：US5311536A

公开(公告)日：1994-05-10

申请号：US96312

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： B41J2/44 ,  B41J2/45 ,  B41J2/455 ,  G02B26/10 ,  G03G15/01 ,  H01S5/40 ,  H04N1/50 ,  H01S3/19

CPC分类号： H01S5/4025 ,  H04N1/506

摘要： Nonmonolithic laser arrays having a plurality of lasing elements mounted on protruding members of a stacked support which includes spacers between the protruding members. The protruding members and spacers are comprised of thermally conductive, but electrically insulative material such as BeO. The conductive layers on the spacers and protruding members assist in providing electrical contact to the lasing elements. The stacked support accurately locates and separates the lasing elements and enables low thermal and electrical crosstalk between the lasing elements.

摘要翻译： 非单晶激光阵列具有多个激光元件，其安装在层叠支撑件的突出部件上，该突起部件包括突出部件之间的间隔件。 突出构件和间隔件由导热但电绝缘材料如BeO组成。 间隔物和突起构件上的导电层有助于提供与激光元件的电接触。 堆叠的支架准确地定位和分离激光元件，并且能够实现激光元件之间的低热和电串扰。

公开(公告)号：US5270849A

公开(公告)日：1993-12-14

申请号：US988585

申请日：1992-12-10

申请人： Edward C. Bock ,  James J. Appel

发明人： Edward C. Bock ,  James J. Appel

IPC分类号： G02B26/10 ,  G02B26/12 ,  G02B26/08

CPC分类号： G02B26/12

摘要： In an overfilled ROS polygon architecture, stray reflection from facets adjacent the completely filled (illuminated) facet are prevented from affecting the scan line images by aligning the optical axis of the pre-polygon and post-polygon optical components at an optimum angle .phi.' so that the stray light reflections at the photoreceptor occur only at non-image forming scan times (outside the image scan time). The optimum angle .phi.' is expressed by the relationship .phi.'=2(.OMEGA..+-.1/2.theta.) where .OMEGA. is given by the expression 360/X, X being the number of scanning facets, and .theta. being the scanning angle.

摘要翻译： 在过满的ROS多边形体系结构中，通过将前多边形和后多边形光学分量的光轴对准最佳角度phi，从而防止相邻完全填充（照明）面的刻面的杂散反射影响扫描线图像 感光体上的杂散光反射仅在非图像形成扫描时间（图像扫描时间外）发生。 通过表达式360 / X给出OMEGA，X是扫描面的数量，θ是扫描角度，由phi = 2（OMEGA +/- 1 /2θ）的关系表示最佳角度phi'。

公开(公告)号：US5933182A

公开(公告)日：1999-08-03

申请号：US4460

申请日：1998-01-08

申请人： James J. Appel

发明人： James J. Appel

IPC分类号： H04N1/113 ,  B41J2/44 ,  G03G15/01 ,  H04N1/50 ,  B41J2/435

CPC分类号： H04N1/506

摘要： Color banding resulting from facet-to-facet jitter in a color imaging device having a plurality of multifaceted polygons is reduced by matching the facets of the various polygons such that the composite image produced by the matched facets result in minimal color banding. The latent images are registered by starting each latent image with a selected "starting" facet such that the matched facets trace corresponding scan lines. Imaging offsets that would result from either advancing or retarding the exposure of a latent image such that the latent images begin with the correct facet are compensated for by moving a rotating cylinder mirror in each polygon such that the latent images are registered. Moving of the cylinder mirror is beneficially achieved using a controlled piezoelectric element.

摘要翻译： 通过匹配各种多边形的面，通过匹配多面体的面，减少通过具有多个多面多边形的彩色成像装置中的面到面抖动产生的色带，使得由匹配的面产生的合成图像导致最小的颜色条带。 通过用选择的“起始”小面启动每个潜像来登记潜像，使得匹配的面追踪对应的扫描线。 通过移动在每个多边形中的旋转圆筒反射镜来使得潜像被注册来补偿由前进或延迟潜像的曝光导致潜像从正确的面开始的成像偏移。 使用受控的压电元件有利地实现气缸镜的移动。

公开(公告)号：US5539441A

公开(公告)日：1996-07-23

申请号：US149356

申请日：1993-11-09

申请人： James J. Appel ,  Susan E. Dunn

发明人： James J. Appel ,  Susan E. Dunn

IPC分类号： G02B26/10 ,  G02B5/20 ,  G02B26/12 ,  B41J2/47

CPC分类号： G02B5/205 ,  G02B26/124

摘要： In an overfilled polygon ROS architecture, fast scan jitter is reduced by uniformly illuminating the overfilled facets. In one embodiment, the collimator lens is designed with a long focal length to transmit only the more uniform central portion of the Gaussian shaped intensity profile output of a laser diode. In another embodiment, the light level at the polygon facet is made uniform by introducing a variable transmission filter along the optical path.

摘要翻译： 在过满的多边形ROS架构中，通过均匀地照亮过满的刻面来减少快速扫描抖动。 在一个实施例中，准直透镜被设计为具有长焦距以仅传输激光二极管的高斯形强度分布输出的更均匀的中心部分。 在另一个实施例中，通过沿光路引入可变透射滤光片，使得多边形小面处的光级均匀。

公开(公告)号：US5517230A

公开(公告)日：1996-05-14

申请号：US308222

申请日：1994-09-19

申请人： Robert M. Lofthus ,  John A. Durbin ,  Aron Nacman ,  James J. Appel

发明人： Robert M. Lofthus ,  John A. Durbin ,  Aron Nacman ,  James J. Appel

IPC分类号： B41J2/44 ,  H04N1/04 ,  H04N1/113 ,  H04N1/12 ,  H04N1/387 ,  H04N1/40

CPC分类号： H04N1/0411 ,  H04N1/0402 ,  H04N1/0414 ,  H04N1/0446 ,  H04N1/40068 ,  H04N1/1135 ,  H04N1/12

摘要： A raster output scanner is capable of creating images at a wide range of selectable resolutions. A laser source for creating an image is modulated at a pixel clock rate. A clock command value is determined as a function of a value related to the pixel clock rate and a value related to a desired resolution in the fast-scan direction and a desired resolution in the slow-scan direction of an image to be created on the photosensitive surface. The pixel clock rate is controlled in response to the clock command value. A polygon command value is determined as a function of the value related to the pixel clock rate, a value related to a desired resolution in the fast-scan direction of an image to be created on the photosensitive surface, and a value related to a rotational velocity of the polygon mirror. The rotational velocity of the polygon mirror is controlled in response to the polygon command value.

摘要翻译： 光栅输出扫描器能够以广泛的可选分辨率创建图像。 用于产生图像的激光源以像素时钟速率被调制。 时钟命令值被确定为与像素时钟速率相关的值的函数，并且与在快速扫描方向上的期望分辨率相关的值和在要创建的图像的慢扫描方向上的期望分辨率被确定 感光面。 响应于时钟命令值来控制像素时钟速率。 多边形指令值被确定为与像素时钟速率相关的值的函数，与在感光表面上要产生的图像的快扫扫描方向上的期望分辨率有关的值，以及与旋转相关的值 多面镜的速度。 响应于多边形指令值来控制多面镜的旋转速度。