公开(公告)号：US20130050779A1

公开(公告)日：2013-02-28

申请号：US13216877

申请日：2011-08-24

申请人： Timothy David Stowe ,  Douglas N. Curry ,  Patrick Y. Maeda

发明人： Timothy David Stowe ,  Douglas N. Curry ,  Patrick Y. Maeda

IPC分类号： H04N1/04

CPC分类号： B41J2/465 ,  B41J2/447 ,  B41J2/45

摘要： Substantially one-dimensional scan line images at 1200 dpi or greater are generated in response to predetermined scan line image data. A substantially uniform two-dimensional homogenous light field is modulated using a spatial light modulator in accordance with the predetermined scan line image data such that the modulated light forms a two-dimensional modulated light field. The modulated light field is then anamorphically imaged and concentrated to form the substantially one-dimensional scan line image. The spatial light modulator includes light modulating elements arranged in a two-dimensional array. The light modulating elements are disposed such that each modulating element receives an associated homogenous light portion, and is individually adjustable between an “on” modulated state and an “off” modulated state, whereby in the “on” modulated state each modulating element directs its received light portion onto a corresponding region of the anamorphic optical system, and in the “off” state blocks or diverts the light portion.

摘要翻译： 响应于预定的扫描线图像数据，产生基于1200dpi或更大的一维扫描线图像。 使用根据预定扫描线图像数据的空间光调制器调制基本上均匀的二维均匀光场，使得调制光形成二维调制光场。 然后将调制的光场变形成像并集中以形成基本上一维的扫描线图像。 空间光调制器包括以二维阵列布置的光调制元件。 光调制元件被布置成使得每个调制元件接收相关联的均匀光部分，并且可以在调制状态和去调制状态之间单独调节，由此在调制状态下，每个调制元件将其接收的光部分引导到对应的 变形光学系统的区域，并且在关闭状态下阻挡或转移光部分。

公开(公告)号：US20080116182A1

公开(公告)日：2008-05-22

申请号：US11562383

申请日：2006-11-21

申请人： Douglas N. Curry

发明人： Douglas N. Curry

IPC分类号： B23K26/08 ,  B23K26/06 ,  B23K26/38 ,  B23K26/42

CPC分类号： H01L31/1876 ,  B23K26/0624 ,  B23K26/067 ,  B23K2101/40 ,  Y02E10/50 ,  Y02P70/521

摘要： A laser scanning mechanism and multiple processing stations are circumferentially disposed around a central axis. The laser scanning mechanism includes a rotating member driven by a motor to rotate around the central axis, and an optical system fixedly mounted on the rotating member and arranged to redirect input laser beam pulses from the central axis along a circular scan path. Each station including a mechanism for moving a corresponding target object radially across the circular scan path. The laser beam pulses output from the scanning mechanism can be used to process (e.g., ablate material from) multiple target objects simultaneously. The laser scanning mechanism redirects the input laser beam pulses such that the laser beams remain on-axis and in focus as they are scanned along the circular (curved) scan path. A system for producing photovoltaic devices utilizes the laser ablation apparatus and a direct-write metallization apparatus.

摘要翻译： 激光扫描机构和多个处理站围绕中心轴线周向设置。 激光扫描机构包括由电动机驱动以围绕中心轴线旋转的旋转部件，以及固定地安装在旋转部件上的光学系统，其布置成沿着圆形扫描路径从中心轴重定向输入激光束脉冲。 每个站包括用于在圆形扫描路径上径向移动相应目标对象的机构。 从扫描机构输出的激光束脉冲可以用于同时处理（例如，从多个目标对象中消融材料）。 激光扫描机构重定向输入激光束脉冲，使得激光束沿着圆形（弯曲）扫描路径扫描时保持在轴上并且聚焦。 用于制造光伏器件的系统利用激光烧蚀装置和直写式金属化装置。

公开(公告)号：US06519055B1

公开(公告)日：2003-02-11

申请号：US09539493

申请日：2000-03-30

申请人： Douglas N. Curry ,  Donald J. Curry

发明人： Douglas N. Curry ,  Donald J. Curry

IPC分类号： G06K1500

CPC分类号： G06K15/1223

摘要： A hyperacuity printing system for rendering bitmapped image data on a photosensitive recording medium, the bitmapped image data being rendered as an array of pixels across the photosensitive recording medium in a fastscan direction, and an orthogonal slowscan direction. This system includes a data source for supplying grayscale input image data and a scanning device for rendering grayscale output image data onto the recording medium. The scanning device has a device for writing scan spots on the recording medium. Further included in this system is transformation circuitry for transforming the grayscale input image data into grayscale output image data. The transformation circuitry includes a halftoner, a thresholder, and a selection device, where the selection device selects either the thresholder or the halftoner to provide the grayscale output image data. Finally, included is a modulating device coupled between the transformation circuitry and the scanning device for intensity modulating each of the scan spots in accordance with the grayscale output image data.

摘要翻译： 一种用于在光敏记录介质上渲染位图图像数据的超级印刷系统，所述位图图像数据以快扫方向在所述感光记录介质上被渲染为像素阵列，以及正交扫描方向。 该系统包括用于提供灰度输入图像数据的数据源和用于将灰度输出图像数据呈现到记录介质上的扫描装置。 扫描装置具有用于在记录介质上写入扫描点的装置。 该系统还包括用于将灰度输入图像数据变换成灰度输出图像数据的变换电路。 转换电路包括半色调器，阈值器和选择器件，其中选择器件选择阈值器或半色调器以提供灰阶输出图像数据。 最后，包括耦合在转换电路和扫描装置之间的调制装置，用于根据灰度输出图像数据对每个扫描点进行强度调制。

公开(公告)号：US5710636A

公开(公告)日：1998-01-20

申请号：US462283

申请日：1995-06-05

申请人： Douglas N. Curry

发明人： Douglas N. Curry

IPC分类号： G06T1/00 ,  H04N1/32 ,  H04N1/405

CPC分类号： H04N1/405 ,  G06T1/0028 ,  H04N1/32203 ,  H04N1/32256 ,  G06T2201/0051 ,  H04N2201/3261 ,  H04N2201/3271

摘要： An apparatus and method for producing a halftone image generates halftone cells based on grayscale image data and bitmap code. A human readable pattern is embedded within the halftone image. Each of the halftone cells is formed from dot patterns having one of a plurality of predetermined shapes. The predetermined shapes of the halftone cells form the human readable pattern. The halftone cells are written onto a recording medium to produce the halftone image. Rotation of the halftone cells allows data to be encoded within each of the halftone cells without varying the tone of the image. The tone of the image may be controlled by selectively varying a thickness of the dot patterns within the halftone cells.

摘要翻译： 用于产生半色调图像的设备和方法基于灰度图像数据和位图代码生成半色调单元。 人造可读图案嵌入在半色调图像中。 每个半色调细胞由具有多个预定形状之一的点阵图形形成。 半色调细胞的预定形状形成人可读图案。 将半色调细胞写入记录介质以产生半色调图像。 半色调细胞的旋转允许在每个半色调细胞内编码数据，而不改变图像的色调。 可以通过选择性地改变半色调细胞内的点图案的厚度来控制图像的色调。

公开(公告)号：US5696604A

公开(公告)日：1997-12-09

申请号：US368459

申请日：1995-01-04

申请人： Douglas N. Curry

发明人： Douglas N. Curry

IPC分类号： G06F3/12 ,  G06T5/00 ,  H04N1/405 ,  H04N1/407

CPC分类号： H04N1/4078 ,  H04N1/4058

摘要： A printing device (10) is commanded to print a reference set of intensity values from almost white or highlight regions through almost dark or shadow regions. A measuring device (12) measures the actual outputted printer intensity levels from the printing device (10). An interpolator (14) interpolates the printer intensity levels into a best fit smooth curve plotted against the reference set of intensity levels which produces a non-linear function. A mapping means and converter (24a, 24b) calculate a set of fractional intensity values and densities which produce a linear function when mapped with the printer intensity levels. A dot area parameter calculator (28) calculates a set of dot parameters defining a configuration of a halftone dot required to fill an area within the halftone cell corresponding to each intensity level. For each position of each halftone cell, a measurement processor (30) determines a distance between a current scan position (a,b) and a nearest edge defined by the dot parameters. A gray value calculator (50) calculates a gray value for the current scan position based on the distance and angle to the nearest edge of the dot. The halftone dot is completed when a gray value is calculated for each position within the halftone cell. The gray values are stored in a look-up table (26). When a new image is to be printed, the intensity values are input (54) and the scan position is indexed (52) through all available scan positions to generate corresponding addresses in the look-up table (26), causing the corresponding gray values to be output serially in order for use by a laser diode controller (56) of a laser printer or analogous controllers in other types of printers.

摘要翻译： 命令打印装置（10）通过几乎黑暗或阴影区域从几乎白色或高亮区域打印一组强度值的参考。 测量装置（12）测量来自打印装置（10）的实际输出的打印机强度水平。 插值器（14）将打印机强度级内插到与产生非线性函数的参考强度级集合绘制的最佳拟合平滑曲线。 映射装置和转换器（24a，24b）计算当与打印机强度级别映射时产生线性函数的一组分数强度值和密度。 点区域参数计算器（28）计算一组点参数，该点参数定义填充与每个强度水平相对应的半色调单元内的区域所需的半色调点的配置。 对于每个半色调单元的每个位置，测量处理器（30）确定当前扫描位置（a，b）与由点参数限定的最近边之间的距离。 灰度值计算器（50）基于与点的最近边缘的距离和角度计算当前扫描位置的灰度值。 当为半色调单元内的每个位置计算灰度值时，完成半色调点。 灰度值存储在查找表（26）中。 当要打印新图像时，强度值被输入（54）并且扫描位置通过所有可用的扫描位置被索引（52），以在查找表（26）中产生相应的地址，导致相应的灰度值 以便激光打印机的激光二极管控制器（56）或其他类型的打印机中的类似控制器使用。

公开(公告)号：US5229760A

公开(公告)日：1993-07-20

申请号：US545744

申请日：1990-06-28

申请人： Douglas N. Curry

发明人： Douglas N. Curry

IPC分类号： B41J2/44 ,  G03G15/04 ,  H04N1/04 ,  H04N1/23 ,  H04N1/40

CPC分类号： H04N1/40068

摘要： In a raster output scanner, a method of switching video from one raster to the next during a scan without the creation of a visible artifact. A position encoder is used to determine the position of each raster on the photoreceptor, a first distance above the transition point and a second distance below the transition point, in the process direction. Above the first point the video will be supplied by the first raster, and below the second point the video will be supplied by the second raster. From the first point to the transition point the duty cycle will vary from 100% of data from the first raster to 50% from each raster. From the transition point to the second point the duty cycle will vary from 50% to 100% supplied by the second raster. In this way, there is a gradual, and invisible, transition from one raster to the next.

公开(公告)号：US5216443A

公开(公告)日：1993-06-01

申请号：US896845

申请日：1992-06-12

申请人： Robert L. Thornton ,  Douglas N. Curry

发明人： Robert L. Thornton ,  Douglas N. Curry

IPC分类号： B41J2/52 ,  B41J2/44 ,  H01S5/00 ,  H01S5/026 ,  H01S5/0683 ,  H04N1/40 ,  H04N1/405

CPC分类号： H04N1/40043 ,  H01S5/06835 ,  H04N1/40037 ,  H04N1/4005 ,  H04N1/4056

摘要： A laser recorder for recording images on a substrate in response to a video signal having a frequency which defines a pixel time (during which a single pixel is imaged) includes a duty cycle modulating digital to analog (D/A) converter which outputs a variable duty cycle high frequency signal, based upon an intensity controlling N-bit input, to a power controller which then controls the intensity of a light beam output by a laser based upon the variable duty cycle high frequency signal. The duty cycle modulating D/A converter outputs a high frequency variable duty cycle bitstream including a repeating cycle of fixed amplitude pulses, a total duration of all of the pulses in each cycle varying based upon the N-bit input signal. The high frequency of the variable duty cycle is sufficiently high so that the cycle of fixed amplitude pulses repeats multiple times within each pixel time, so that the intensity level with which pixels are formed on a substrate varies based upon the number of pulses output during each pixel time and the total duration of all pulses in each cycle. Preferably, the laser, power controller, and duty cycle modulating D/A converter are formed in a common semiconductive substrate. A detector for detecting the intensity of light output by the laser is also preferably formed in the common semiconductive substrate, and provides feedback to the power controller. In a preferred embodiment, the duty cycle modulating D/A converter varies the total duration of the fixed amplitude pulse within a cycle by varying a number of fixed amplitude, fixed width pulses output during each cycle based upon the N-bit input signal.

公开(公告)号：US4893136A

公开(公告)日：1990-01-09

申请号：US288501

申请日：1988-12-22

申请人： Douglas N. Curry

发明人： Douglas N. Curry

IPC分类号： G02B26/10 ,  B41J2/44 ,  G01D15/14 ,  H04N1/053 ,  H04N1/113 ,  H04N1/12 ,  H04N1/23

CPC分类号： H04N1/053 ,  G01D15/14 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0471 ,  H04N2201/04774

摘要： An arithmetic frequency synthesizer having an accumulator for recursively accumulating a R-bit long input word at a predetermined reference frequency to generate a variable frequency bit clock for a flying spot scanner with a rotating polygon for cyclically scanning an intensity modulated light beam across a photosensitive recording medium includes means for arithmetically modulating the value of the accumulator input word on a scan cycle-by-scan cycle basis for adjusting the bit clock frequency to compensate for polygon motor hunt errors. There is a counter which is incremented or decremented during each scan cycle at a frequency which is scaled to the reference frequency, whereby the count accumulated by the counter during each scan cycle is a measure of the average angular velocity of the polygon during that cycle. This count is offset by a calibrated R-bit long bias value; either by preloading the bias value, into the counter at the start of each scan cycle or by summing the bias value, in whole or part, with the accumulated count. The bias value is selected so that offset count or the averaged offset count accumulated during one or more earlier scan cycles, respectively, defines the modulated input word value, adjusts the frequency of the bit clock to compensate substantially for the average motor hunt occurring during the earlier scan cycle or cycles.

公开(公告)号：US4860237A

公开(公告)日：1989-08-22

申请号：US637660

申请日：1984-08-03

申请人： Douglas N. Curry

发明人： Douglas N. Curry

IPC分类号： G06F7/62 ,  G06K15/12 ,  H04N1/053

CPC分类号： G06K15/1219 ,  G06F7/62 ,  H04N1/053 ,  H04N2201/04768

摘要： A method for generating a variable frequency clock pulse for a raster scanner. First, a correction number, which may be the sum of corrections for scan-nonlinearity, polygon signature errors and motor hunt errors, is generated. This number is then added periodically to a running sum. The most significant bit of this sum is then available as the clock pulse output. The frequency of the output clock will be proportional to the correction number. The described circuit uses an accumulating adder and a register loop to form an accumulator circuit. The correction number is then supplied to the other accumulator adder input, and the register is clocked with a fixed frequency sample clock pulse.

摘要翻译： 一种用于为光栅扫描器生成可变频率时钟脉冲的方法。 首先，生成校正数，其可以是扫描非线性，多边形签名错误和电机寻线错误的校正之和。 然后将该号码定期添加到运行总和。 该和的最高有效位随后作为时钟脉冲输出。 输出时钟的频率将与校正数成正比。 所描述的电路使用累积加法器和寄存器环来形成累加器电路。 然后将校正数字提供给另一个累加器加法器输入，并且以固定频率采样时钟脉冲对定时器进行计时。

公开(公告)号：US20130050803A1

公开(公告)日：2013-02-28

申请号：US13216588

申请日：2011-08-24

申请人： Timothy David Stowe ,  Douglas N. Curry ,  Patrick Y. Maeda

发明人： Timothy David Stowe ,  Douglas N. Curry ,  Patrick Y. Maeda

IPC分类号： G02B26/00

CPC分类号： G03F7/70275 ,  G02B13/08 ,  G02B26/0841 ,  G03F7/70291 ,  G03F7/70366 ,  G03F7/70475

摘要： An imaging apparatus including multiple spatial light modulators, each including light modulating elements arranged in two-dimensional array disposed in a homogenous light field, multiple anamorphic optical systems, each disposed downstream from an associated spatial light modulator, a scan structure, and an image stitching controller. The light modulating elements of each spatial light modulator are individually adjustable to either pass received homogenous light portions to the anamorphic optical systems, or to block/redirect the homogenous light portions, thereby generating a two-dimensional modulated light field. Each anamorphic optical system images and focuses received modulated light field onto an associated substantially one-dimensional scan line portion on the scan structure. The image stitching controller modifies the image data sent to each spatial light modulator such that selected light modulating elements are enabled or disabled, thereby electronically stitching the scan line portions to form a seamlessly stitched scan line image.

摘要翻译： 一种包括多个空间光调制器的成像设备，每个空间光调制器包括以均匀光场布置的二维阵列布置的光调制元件，多个变形光学系统，每个设置在相关空间光调制器的下游，扫描结构和图像拼接 控制器。 每个空间光调制器的光调制元件可单独调节，以将接收到的均匀光部分传递到变形光学系统，或者阻挡/重定向均匀的光部分，从而产生二维调制光场。 每个变形光学系统将接收到的调制光场的图像和焦点映射到扫描结构上的相关联的基本上一维扫描线部分上。 图像拼接控制器修改发送到每个空间光调制器的图像数据，使得所选择的光调制元件被启用或禁用，从而电子地拼接扫描线部分以形成无缝缝合的扫描线图像。