公开(公告)号：US5436691A

公开(公告)日：1995-07-25

申请号：US238774

申请日：1994-05-05

申请人： James D. Rees ,  Conrad J. Bell

发明人： James D. Rees ,  Conrad J. Bell

IPC分类号： G03G15/04 ,  G03B27/50 ,  G03G15/041 ,  G03B27/68

CPC分类号： G03G15/041

摘要： A copier with an anamorphic magnification imaging system is provided with improvements which enable increased resolution of exposed line images at a photoreceptor. The improvement relates to reducing the effective imaging aperture through which the images is projected onto the surface of a photoreceptor. In one embodiment, a gradient index lens array which transmits light reflected from illuminated scan strip on a document platen is provided with two blockers attached to opposite sides of the lens array. Each blocker element has a blocking end which projects into the optical path and blocks a portion of the light that would otherwise be transmitted along the optical path. The effect of the two blockers is to form an effective imaging aperture having a width less than 1mm, in the preferred embodiment about 0.4mm. This narrow imaging width enables a high resolution output image. Increased illumination requirements are met, in another embodiment, by using a faster lens to increase exposure and modifying the lens by adding an extra pitch to increase the total conjugate which would otherwise limited by using the faster lens.

摘要翻译： 具有变形放大成像系统的复印机具有能够增加感光体上的曝光线图像分辨率的改进。 该改进涉及减少图像投射到感光体表面上的有效成像孔径。 在一个实施例中，将从照射的扫描条带反射的光透射在文稿台上的梯度折射率透镜阵列设置有附接到透镜阵列的相对侧的两个阻挡器。 每个阻挡元件具有突出到光路中的阻挡端，并阻挡沿着光路传输的一部分光。 两个阻断剂的作用是形成宽度小于1mm的有效成像孔，在优选实施方案中为约0.4mm。 这种窄的成像宽度可以实现高分辨率输出图像。 在另一个实施例中，通过使用更快的透镜来增加曝光和通过增加额外的间距来增加透镜的修正以增加通过使用更快的透镜来限制的总共轭，满足增加的照明要求。

公开(公告)号：US6078341A

公开(公告)日：2000-06-20

申请号：US211235

申请日：1998-12-14

申请人： James D. Rees ,  Edward C. Bock

发明人： James D. Rees ,  Edward C. Bock

IPC分类号： B41J2/44 ,  B41J2/47 ,  G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H04N1/113 ,  H04N1/12 ,  H04N1/191 ,  G03G15/04

CPC分类号： H04N1/1918 ,  B41J2/473 ,  G02B26/123 ,  G06K15/1257 ,  H04N1/1912 ,  H04N1/1135 ,  H04N1/12

摘要： A raster output scanner assembly having a first laser source for producing first and second laser beams, and a second laser source for producing third a fourth laser beams. The first and second laser beams are directed to a first rotating, multifaceted polygon while the third and fourth laser beams are directed to a second rotating, multifaceted polygon. The first polygon reflects the first and second laser beams onto a moving photoreceptor while the second polygon reflects the third and fourth laser beams onto the photoreceptor. The spots produced by the various laser beams are interlaced such that the scan line produced by the third laser beam is between the scan lines produced by the first and second laser beams, while the scan line produced by the fourth laser beam is adjacent the scan line produced by the second laser beam.

摘要翻译： 一种具有用于产生第一和第二激光束的第一激光源的光栅输出扫描器组件和用于产生第三个第四激光束的第二激光源。 第一和第二激光束被引导到第一旋转多面多边形，而第三和第四激光束被引导到第二旋转多面多边形。 第一多边形将第一和第二激光束反射到移动感光体上，而第二多面体将第三和第四激光束反射到感光体上。 由各种激光束产生的斑点交错，使得由第三激光束产生的扫描线在由第一和第二激光束产生的扫描线之间，而由第四激光束产生的扫描线与扫描线相邻 由第二激光束产生。

公开(公告)号：US5208636A

公开(公告)日：1993-05-04

申请号：US856311

申请日：1992-03-23

申请人： James D. Rees ,  Cyril G. Edmunds ,  Charles H. Tabb ,  Paul A. Garsin

发明人： James D. Rees ,  Cyril G. Edmunds ,  Charles H. Tabb ,  Paul A. Garsin

IPC分类号： G03G15/01

CPC分类号： G03G15/0152 ,  G03G15/0163

摘要： A printing machine in which two electrostatic latent images are recorded on a photoconductive member. One of the latent images is a charged area latent image with the other image being a discharged area latent image. A magnetic developer unit develops the charged area latent image with black toner particles. A non-magnetic developer unit develops the discharged area latent image with toner particles of a color other than black. The toner particles from both latent images are transferred substantially simultaneously to a sheet and fused thereto forming a color high lighted document.

摘要翻译： 其中两个静电潜像被记录在感光体上的印刷机。 潜像中的一个是带电区域潜像，其他图像是放电区域潜像。 磁性显影剂单元用黑色调色剂颗粒显影带电区域潜像。 非磁性显影剂单元用除黑色以外的颜色的调色剂颗粒显影排出区域潜像。 来自两个潜像的调色剂颗粒基本上同时转印到片材上并熔合，从而形成彩色高亮文档。

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：US4982222A

公开(公告)日：1991-01-01

申请号：US890204

申请日：1986-07-28

申请人： James D. Rees

发明人： James D. Rees

IPC分类号： H04N1/23 ,  B41J2/45 ,  G02B3/00 ,  G03G15/04 ,  H04N1/031 ,  H04N1/04 ,  H04N1/193

CPC分类号： H04N1/0311 ,  B41J2/451 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/0087 ,  G03G15/04 ,  H04N1/0312 ,  H04N1/0317 ,  G03G15/0435 ,  H04N1/193 ,  H04N2201/0458

摘要： The present invention is directed to optical imaging systems which utilize linear lens arrays and particularly gradient index lens arrays as the means for projecting light images onto a photosensitive image member. Exposure modulation at the image plane is reduced by oscillating the lens array during an exposure interval, the oscillating period and excursion distance being dependent upon the type of imaging environment the lens is used in. For document copying applications, the requirement for a two-row array to provide minimum exposure modulation is reduced so that a one-row lens array is enabled. For printer and RIS scanning functions, oscillation of a two-row array enables improved system efficiency and hence greater image irradiance and exposure.

摘要翻译： 本发明涉及利用线性透镜阵列和特别是梯度折射率透镜阵列作为将光图像投影到感光图像部件上的装置的光学成像系统。 通过在曝光间隔期间振荡透镜阵列来减小图像平面上的曝光调制，振荡周期和偏移距离取决于使用镜头的成像环境的类型。对于文档复印应用，需要两行 提供最小曝光调制的阵列减小，使得能够使单行透镜阵列。 对于打印机和RIS扫描功能，两列阵列的振荡可以提高系统效率，从而提高图像辐照度和曝光率。

公开(公告)号：USRE31499E

公开(公告)日：1984-01-17

申请号：US87174

申请日：1979-10-22

申请人： Charles F. Gallo, Jr. ,  Thomas J. Hammond ,  James D. Rees

发明人： Charles F. Gallo, Jr. ,  Thomas J. Hammond ,  James D. Rees

IPC分类号： G03B27/54

CPC分类号： G03B27/542

摘要： .[.A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved..]. .Iadd.The invention relates to an illumination system which provides nonuniform illumination along an object plane in the dimension of an illumination source which includes two linear lamps. The lamps have their anodes and cathodes connected in reverse fashion relative to each other; each lamp provides its own asymmetrical light output distribution pattern but the resultant output of both lamps is a symmetrical pattern which provides the characteristic nonuniform illumination on the object plane. .Iaddend.

公开(公告)号：US4086010A

公开(公告)日：1978-04-25

申请号：US737299

申请日：1976-11-01

申请人： Charles F. Gallo, Jr. ,  Thomas J. Hammond ,  James D. Rees

发明人： Charles F. Gallo, Jr. ,  Thomas J. Hammond ,  James D. Rees

IPC分类号： G03B27/54

CPC分类号： G03B27/542

摘要： A symmetrical light intensity distribution profile is achieved by placing a pair of similar asymmetrical linear DC gas discharge lamps in parallel position but opposed in polarity. The individual asymmetrical distributions of the lamps combine in a symmetrical total intensity distribution. A desired "butterfly" or other intensity distribution profile can be achieved.

摘要翻译： 通过将一对相似的非对称线性直流气体放电灯置于平行位置但极性相反的方式实现对称的光强分布曲线。 灯的单个不对称分布以对称的总强度分布组合。 可以实现期望的“蝴蝶”或其他强度分布轮廓。

公开(公告)号：US5978628A

公开(公告)日：1999-11-02

申请号：US205979

申请日：1998-12-04

申请人： James D. Rees

发明人： James D. Rees

IPC分类号： G03G15/01 ,  G03G15/04

CPC分类号： G03G15/0152 ,  G03G15/0163 ,  G03G2215/017

摘要： REaD electrophotographic printing using additive color toners. Toners that are non-transmissive to exposing light are developed using inhibited image-on-image printing. Then, the photoreceptor is exposed to produce a latent image for a toner that transmits the exposing light. Finally, the latent image for a toner that transmits the exposing light is developed.

摘要翻译： READ电子照相打印使用添加颜色调色剂。 使用禁止的图像图像打印来开发不透光的调色剂。 然后，曝光感光体以产生透射曝光光的调色剂的潜像。 最后，显影透射曝光的调色剂的潜像。

公开(公告)号：US5748344A

公开(公告)日：1998-05-05

申请号：US533123

申请日：1995-09-25

申请人： James D. Rees

发明人： James D. Rees

IPC分类号： G03B27/62 ,  H04N1/00 ,  H04N1/04 ,  H04N1/38 ,  H04N1/387 ,  H04N1/40 ,  H04N1/46

CPC分类号： H04N1/00702 ,  H04N1/00681 ,  H04N1/00718 ,  H04N1/00748 ,  H04N1/00753 ,  H04N1/00766 ,  H04N1/38 ,  H04N1/387

摘要： A digital scanning system for scanning a document includes a full width array having two sets of color sensitive photosites, each set of photosites being sensitive to a different color of light and a backdrop portion. The backdrop portion is colored such that the backdrop portion appears nearly black to one set of color sensitive photosites and appears nearly white to a different set of color sensitive photosites. the scanning system further includes a light source, a document edge detection circuit operatively connected to the set of color sensitive photosites which perceive the backdrop portion as being nearly black, and an image processing circuit operatively connected to the set of color sensitive photosites which perceive the backdrop portion as being nearly white.

摘要翻译： 用于扫描文件的数字扫描系统包括具有两组彩色感光片的全宽阵列，每组光照对不同颜色的光和背景部分敏感。 背景部分是彩色的，使得背景部分看起来几乎是黑色的，一组颜色敏感的照片，并且对于不同的一组颜色敏感的照片而言几乎是白色的。 扫描系统还包括光源，文档边缘检测电路，其可操作地连接到感知背景部分几乎为黑色的一组颜色敏感的光斑;以及图像处理电路，其可操作地连接到感觉到 背景部分几乎是白色的。

公开(公告)号：US5450157A

公开(公告)日：1995-09-12

申请号：US161630

申请日：1993-12-06

申请人： James D. Rees

发明人： James D. Rees

IPC分类号： G02B6/028 ,  G02B3/00 ,  G02B5/12

CPC分类号： G02B3/0056 ,  G02B3/0087

摘要： An imaging system is disclosed which incorporates a gradient index lens array to transmit focused light onto an image medium with increased Depth of Focus (DOF) and no loss of radiometric efficiency. The lens array is first constructed so that its exit pupil is generally symmetrical. This first step increases the radiometric efficiency of the lens array relative to prior art lens arrays. In a second step, the DOF is increased by reducing a quantity n.sub.o .sqroot.AR which is associated with the lens, n.sub.o being the axial refractive index of the fibers comprising the lens array, .sqroot.A being the gradient index constant of the material comprising the lens array and R being the radius of the individual optical rods, As this quantity is reduced, the DOF increases consistent with a trade off of reduced radiometric efficiency. Since the efficiency was initially increased from some optimum value, the DOF can be increased until the desired radiometric efficiency level is reached.

摘要翻译： 公开了一种成像系统，其包括梯度折射率透镜阵列，以将聚焦光传输到具有增加的聚焦深度（DOF）的图像介质上，并且不损失辐射效率。 首先构造透镜阵列使其出射光瞳大致对称。 该第一步骤相对于现有技术的透镜阵列增加了透镜阵列的辐射效率。 在第二步骤中，DOF通过减少与透镜相关联的数量2ROOT AR而增加，不是包括透镜阵列的光纤的轴向折射率，2ROOT A是包括透镜的材料的梯度折射率常数 阵列和R是单个光学棒的半径。随着这个数量的减少，自由度增加与降低的辐射效率的折衷一致。 由于效率最初从一些最佳值增加，可以增加DOF，直到达到所需的辐射效率水平。