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    • 2. 发明授权
    • Method and apparatus for printing multiple simultaneous images onto a photosensitive media
    • 将多个同时影像印刷到感光介质上的方法和装置
    • US06646716B1
    • 2003-11-11
    • US09626633
    • 2000-07-27
    • Sujatha RamanujanVictor C. WongBadhri NarayanDan S. Talbot
    • Sujatha RamanujanVictor C. WongBadhri NarayanDan S. Talbot
    • G03B2732
    • G03B27/32B41J2/465G02B27/283H04N1/504
    • A method and apparatus for printing multiple simultaneous images onto a photosensitive media comprises the steps of imaging light from a light source through an optics assembly (75) to a polarization beamsplitter (80). The polarization beamsplitter (80) produces light having a first polarized state and light having a second polarized state. The first polarized light is directed to a first spatial light modulator (90). The first spatial light modulator is addressed with a first signal to create a first modulated light beam, which is imaged through a print lens assembly onto the photosensitive media. A second polarized light is directed to a second spatial light modulator (95). The second spatial light modulator is addressed with a second signal to create a second modulated light beam, which is imaged through the print lens onto the photosensitive media. The first modulated light beam and the second modulated light beam create at least two simultaneous images on the photosensitive media.
    • 用于将多个同时图像打印到感光介质上的方法和装置包括以下步骤:将来自光源的光通过光学组件(75)成像到偏振分束器(80)。 偏振分束器(80)产生具有第一偏振态的光和具有第二偏振状态的光。 第一偏振光被引导到第一空间光调制器(90)。 第一空间光调制器用第一信号寻址以产生第一调制光束,其通过印刷透镜组件成像到感光介质上。 第二偏振光被引导到第二空间光调制器(95)。 第二空间光调制器用第二信号寻址以产生第二调制光束,其通过打印透镜成像到感光介质上。 第一调制光束和第二调制光束在感光介质上产生至少两个同时的图像。
    • 3. 发明授权
    • Method and apparatus for printing images in multiple formats using a spatial light modulator
    • 使用空间光调制器以多种格式打印图像的方法和装置
    • US06580490B1
    • 2003-06-17
    • US09699552
    • 2000-10-30
    • Victor C. WongBadhri NarayanSujatha RamanujanDan S. Talbot
    • Victor C. WongBadhri NarayanSujatha RamanujanDan S. Talbot
    • G03B2752
    • G03B27/72
    • A printer (100) able to print in a plurality of output formats depending on width of media (160) loaded in the printer (100) is disclosed. The printer (100) provides high resolution and grayscale imaging capability for monochromatic applications. Illumination optics (11) receive a source light beam, from one or more LEDs, uniformize and polarize the beam and direct the beam through a polarization beamsplitter (50). The polarization beamsplitter (50) directs one polarization state of light to one or more LCD spatial light modulators (52), which modulate the polarization of the polarized beam to provide output exposure energy suitable for image marking on media (160). An optional sensor (234) allows printer (100) to automatically detect the width of a given type of media (160) in order to select from a set of compatible output format. Multiple segments of media (160) at the image plane (150) simultaneously.
    • 公开了一种能够根据加载在打印机(100)中的介质(160)的宽度以多种输出格式打印的打印机(100)。 打印机(100)为单色应用提供高分辨率和灰度成像能力。 照明光学器件(11)接收来自一个或多个LED的源光束使光束均匀化和极化,并将光束引导通过偏振分束器(50)。 偏振分束器(50)将一种偏振态光引导到一个或多个LCD空间光调制器(52),其调制偏振光束的偏振,以提供适合于在介质(160)上的图像标记的输出曝光能量。 可选的传感器(234)允许打印机(100)自动检测给定类型的介质(160)的宽度,以便从一组兼容的输出格式中进行选择。 同时在图像平面(150)处的多个介质段(160)。
    • 4. 发明授权
    • Method for improving printer uniformity
    • 提高打印机均匀性的方法
    • US06554388B1
    • 2003-04-29
    • US09977545
    • 2001-10-15
    • Victor C. WongBadhri NarayanWilliam M. Barnick
    • Victor C. WongBadhri NarayanWilliam M. Barnick
    • B41J29393
    • B41J29/393G06K15/1238H04N1/4015H04N1/4078
    • An improvement for non-uniformity correction in a printing apparatus (10) wherein an image forming assembly (22) forms an image using a plurality of exposure elements, and the amount of exposure energy at each individual exposure element is capable of being varied. A test print (50) is generated, having a series of test patches or zones with predetermined density levels. A scanner (40) scans the test print (50) to obtain density value readings within each test density zone (52) for each pixel that corresponds to each exposure element. Density value readings are averaged. Then, difference in measurement from this average is used to compute a correction factor for each individual exposure element. An image data manager (12) conditions the input data by this correction factor, then sends the conditioned image data to the image forming assembly (22) for printing.
    • 在图像形成组件(22)使用多个曝光元件形成图像的打印设备(10)中的不均匀性校正的改进,并且每个单独曝光元件的曝光能量的量能够变化。 产生测试印刷品(50),具有一系列具有预定浓度水平的试验片或区域。 扫描仪(40)扫描测试印刷品(50)以获得每个测试密度区域(52)内对应于每个曝光元件的每个像素的浓度值读数。 平均密度值读数。 然后,使用与该平均值的测量差异来计算每个单独的曝光元素的校正因子。 图像数据管理器(12)通过该校正因子对输入数据进行调整,然后将调节后的图像数据发送到图像形成组件(22)进行打印。