Integral fiber optic sensing head
    92.
    发明公开
    Integral fiber optic sensing head 失效
    整体光纤感光头

    公开(公告)号:EP0391882A3

    公开(公告)日:1991-01-09

    申请号:EP90890071.5

    申请日:1990-03-12

    IPC分类号: H04N1/028 H04N1/036

    摘要: An integral sensing head (10) includes a single fiber optic faceplate substrate (12) to which are connected photodiode arrays (24,26,28), circuits (32) for selectively controlling the transmission of electronic information signals from the photodiodes and interconnecting conductive lines (40) all disposed on the same fiber optic faceplate substrate (12) which thereby provides the optical lens system for the photodiodes and a supporting substrate to which the active components are mounted and electrically interconnected by conductive lines.

    Optical scanning apparatus
    93.
    发明公开
    Optical scanning apparatus 失效
    光学扫描设备

    公开(公告)号:EP0388981A3

    公开(公告)日:1990-10-31

    申请号:EP90105576.4

    申请日:1990-03-23

    IPC分类号: H04N1/036

    摘要: There is disclosed an optical scanning apparatus for effecting the scanning with plural light beams, without aberrations among the obtained scanning lines and without curvature in the scanning lines. For this purpose plural light beams emitted from plural light sources are deflected by a single deflector, composed for example of a rotary polygon mirror (27), and guided to respective scanned planes through a scanning condenser lens system (28,29,30a,30b), having the f-ϑ characteristics in the scanning direction and also having plural optical axes in the sub scanning direction.

    摘要翻译: 公开了一种用多个光束进行扫描的光学扫描设备,在所获得的扫描线中没有像差,并且在扫描线中没有弯曲。 为此目的,从多个光源发射的多个光束由例如由旋转多面镜(27)构成的单个偏转器偏转,并且通过扫描聚光透镜系统(28,29,30a,30b)被引导到相应的扫描平面 ),在扫描方向上具有f-θ特性,并且在副扫描方向上也具有多个光轴。

    Bandwidth reduced multi-pass writing of variable gray level digital images
    94.
    发明公开
    Bandwidth reduced multi-pass writing of variable gray level digital images 失效
    Mehrfachschreiben variabler Grautondigitalbilder mit reduzierter Bandbreite。

    公开(公告)号:EP0375431A2

    公开(公告)日:1990-06-27

    申请号:EP89313453.6

    申请日:1989-12-21

    申请人: XEROX CORPORATION

    IPC分类号: H04N1/40 H04N1/036 H04N1/41

    CPC分类号: H04N1/40037

    摘要: User-viewable renderings of variable gray level images composed of pixels represented by binary coded codewords are written on a suitable recording medium by one or more pixel generators which have their write responses code matched to the codewords. More particularly, the write responses of the pixel generators (22 a -----) are "code matched" to the codewords by cyclically and bit synchronously stepping them through a series of gray-­scale values which are selected to substantially match the binary weights of the respective bits of the codewords. Such code matched pixel generators are selectively write enabled and disabled in response to the logic levels of the successive bits of the codewords that are applied to them, whereby the binary weighted writes any of them performs in response to a given codeword spatially sum to form a pixel having approximately the same gray-­scale value as the given codeword.

    摘要翻译: 由二进制编码码字表示的像素构成的可变灰度级图像的用户可查看的渲染由一个或多个象素生成器写在合适的记录介质上,该像素生成器的写响应码与码字匹配。 更具体地,像素生成器(22a -----)的写入响应通过循环地和位同步地使它们通过一系列被选择为基本上匹配二进制权重的灰度值而与码字“码匹配” 的码字的各个比特。 响应于应用于它们的码字的连续位的逻辑电平,这样的代码匹配像素发生器被选择性地写入使能和禁止,由此二进制加权写入中的任何一个响应于给定的码字空间上的和来执行以形成 像素具有与给定码字大致相同的灰度值。

    Light emitting diode print head assembly
    95.
    发明公开
    Light emitting diode print head assembly 失效
    Aufbau eines Druckkopfes mit Leuchtdioden。

    公开(公告)号:EP0364077A2

    公开(公告)日:1990-04-18

    申请号:EP89307837.8

    申请日:1989-08-02

    CPC分类号: B41J2/45

    摘要: This technique for assembling a print head for an LED printer has LED dice (16) first assembled into precisely known locations on mounting tiles (13). A portion (19) of the front face of each tile (13) is left exposed beyond anything mounted on the tile (13). The tiles (13) are then assembled with these exposed areas (19) on a planar reference (32) on an assembly fixture (31). Reference surfaces (34,36) built into the fixture (31) align the edges of the tiles (13), and hence the LED dice (16). Finally a mother plate (10) is adhesively bonded onto the backs of the tiles (13). The adhesive accommodates thickness variations in the mounting tiles (13), and lack of flatness in the back surfaces of the tiles (13) and the front face of the mother plate (10). Reference tiles (41) coplanar with the reference plane formed by the front faces of the mounting tiles (13) provide a z axis reference.

    摘要翻译: 用于组装用于LED打印机的打印头的该技术具有首先在安装瓦片(13)上组装成精确已知位置的LED骰子(16)。 每个瓦片(13)的前表面的一部分(19)被暴露在安装在瓦片(13)上的任何东西上。 然后将瓦片(13)与这些暴露区域(19)组装在装配夹具(31)上的平面基准(32)上。 内置于固定装置(31)中的参考表面(34,36)对准瓦片(13)的边缘,并因此使LED骰子(16)对齐。 最后,母板(10)粘合到瓦片(13)的背面上。 粘合剂容纳安装瓦片(13)中的厚度变化,以及瓷砖(13)的后表面和母板(10)的前表面的平坦度不足。 与由安装瓦片(13)的前表面形成的参考平面共面的参考瓦片(41)提供z轴基准。

    Raster output scanner
    97.
    发明公开
    Raster output scanner 失效
    RasterabtasterfürWiedergabe。

    公开(公告)号:EP0251740A2

    公开(公告)日:1988-01-07

    申请号:EP87305726.9

    申请日:1987-06-26

    申请人: XEROX CORPORATION

    IPC分类号: H04N1/036 H04N1/00 G03G15/32

    CPC分类号: H04N1/4015

    摘要: A circuit is disclosed for correcting the write power of a laser raster output scanner as it scans across a write drum (15). During calibration, a piece of glass (25) reflects part of the beam into a photo-multiplier tube (16), the output of which is converted into a digital signal. This is compared with a reference signal. The difference for each segment of the scan is stored in RAM and also is converted back to an analog signal to modulate an acousto-optic modulator in the laser optics to correct the write power. After the system has settled to a point where the write power at the drum does not vary across the scan, the glass may be removed, and the system thereafter operates using the correction signals stored in RAM.

    摘要翻译: 公开了一种用于在激光光栅输出扫描器扫描写入磁鼓(15)时校正激光光栅输出扫描器的写入功率的电路。 在校准期间,一块玻璃(25)将光束的一部分反射成光电倍增管(16),其输出被转换为数字信号。 将其与参考信号进行比较。 扫描的每个区段的差异存储在RAM中,并且还被转换回模拟信号以调制激光光学器件中的声光调制器以校正写入功率。 在系统已经到达滚筒上的写入功率在扫描之间不变化的点之后,玻璃可以被去除,然后系统使用存储在RAM中的校正信号进行操作。

    Elektrodenstruktur für einen Druckkopf
    98.
    发明公开
    Elektrodenstruktur für einen Druckkopf 失效
    电极结构的打印头。

    公开(公告)号:EP0246577A2

    公开(公告)日:1987-11-25

    申请号:EP87107107.2

    申请日:1987-05-16

    IPC分类号: H04N1/036

    摘要: Es wird eine Elektrodenstruktur für einen Druckkopf einer faksimilen elektrooptischen Schreibeinrichtung zur zeilenweisen Aufzeichnung von Bildpunkten angegeben. Die Bildpunkte werden durch Lichttore (35) hindurch auf einem Aufzeichnungsträger belichtet. Diese Lichttore (35) sind reihenweise angeordnet und durch Bildpunktelektroden (22,22') und Hauptelektroden (23,24,25,26) gebildet. Jeder Bildpunktelektrode (22, 22') sind n Lichttore (35, 19) zugeordnet, dabei sind jeder bildpunktelektrodenreihe (27, 28) n Hauptelektroden zugeordnet, so daß 2N-2 Lichttore durch N Elektroden gebildet werden. Die Elektrodenstruktur ist so aufgebaut, daß jeder Bildpunktelektrodenreihe (27,28) auf jeder Längsseite wenigstens eine Hauptelektrode zugeordnet ist. Jede Bildpunktelektrode 22 weist n Schaltbereiche (20, 21) auf, die auf unterschiedlichen Seiten der bildpunktelektroden angeordnet sind.

    摘要翻译: 提供了一种用于一个传真机电光写入装置的像素的面向行的记录的打印头提供的电极结构。 的像素被通过一个记录载体上的光闸(35)露出。 这些光闸(35)被布置成行和像素电极(22,22“)和主电极(23,24,25,26)形成。 每个像素电极(22,22“)是n个光闸(35,19)分配给它的各自像素电极行(27.28)被分配N主电极,从而2N-2光学栅极通过电极形成。 的电极结构被构造成使得每个像素电极的行(27,28)被分配给每个纵向侧的至少一个主电极。 每个像素电极22具有n个切换部分,其被布置在像素电极的不同侧部(20,21)。

    Line exposure array
    100.
    发明公开
    Line exposure array 失效
    行灯系列。

    公开(公告)号:EP0189664A2

    公开(公告)日:1986-08-06

    申请号:EP85309246.8

    申请日:1985-12-18

    IPC分类号: H04N1/036

    CPC分类号: B41J2/45 H04N1/036 H04N1/193

    摘要: A line exposure array of light emitting diodes (26a, 26b) arranged in spaced apart relationship with respect to each other in a line (A-A) is described. The array is geometrically configured to provide a substantially uniform exposure of a photosensitive material without underexposed stripes appearing on those areas of the photosensitive material Immediately adjacent the spaces between the light emitting diodes.