OPTICAL ARTICLE AND METHOD OF MAKING
    6.
    发明申请
    OPTICAL ARTICLE AND METHOD OF MAKING 有权
    光学文章和制作方法

    公开(公告)号:US20080252980A1

    公开(公告)日:2008-10-16

    申请号:US11735684

    申请日:2007-04-16

    IPC分类号: G02B27/30 B29D11/00 G02B5/02

    摘要: Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.

    摘要翻译: 本文公开了一种光学制品,其具有顶层,其具有准直光的结构化表面,固定到与结构化表面相对的顶层的芯层和固定到与顶层相对的芯层的底层。 顶层或芯层包括具有大于2.5GPa的挠曲模量的第一可挤出聚合物,另一层包括弯曲模量为2.5GPa或更小的第二可挤出聚合物,冲击强度大于约40 J / m,拉伸断裂伸长率大于约5%。 底层包括第三可挤出聚合物。 光学制品的底层可以被构造为漫射光。 一个或两个光学制品可以固定到诸如偏振片的光学膜。 本文还公开了方法和显示装置。

    Correction for scan period variation in optical image scanners
    7.
    发明授权
    Correction for scan period variation in optical image scanners 失效
    光学图像扫描仪扫描周期变化的校正

    公开(公告)号:US4369365A

    公开(公告)日:1983-01-18

    申请号:US256597

    申请日:1981-04-22

    摘要: Correction for variations in scan period of optical image scanners includes measuring and storing the scan times at which optical events occur to cause image detector signals, detecting an optical marker near the end of the scan and the scan time of its detection, determining the difference between this scan time and a stored scan period, comprising the nominal scan time for marker detection, which difference represents the scan period error, dividing the difference by the stored scan period to provide a scan time unit error and multiplying each stored measured scan time by the unit error to provide a correction for each measured scan time, thereafter adding the correction to the stored measured scan time to give a corrected scan time.

    摘要翻译: 光学图像扫描仪的扫描周期变化的校正包括测量和存储发生光学事件的扫描时间,以引起图像检测器信号,检测在扫描结束附近的光学标记和其检测的扫描时间,确定 该扫描时间和存储的扫描周期包括用于标记检测的标称扫描时间,该差表示扫描周期误差,将差除以所存储的扫描周期以提供扫描时间单位误差,并将每个存储的测量扫描时间乘以 单位错误,以对每个测量的扫描时间提供校正,然后将校正添加到所存储的测量扫描时间以给出校正的扫描时间。

    Privacy film
    10.
    发明授权
    Privacy film 有权
    隐私电影

    公开(公告)号:US07467873B2

    公开(公告)日:2008-12-23

    申请号:US11250676

    申请日:2005-10-14

    IPC分类号: G02B27/00

    摘要: The present invention pertains to privacy film that can be used with documents. The privacy film has a light transmissive, polymeric base sheet that has opposing first and second surfaces. A plurality of light directing elements protrudes from the first surface of the base sheet. The base sheet can be constructed of a first polymeric material. The light directing elements can be constructed of a second polymeric material. The first and second polymeric material may be the same material. The light directing elements are substantially constant in its cross-section dimension and disposed substantially parallel to each other.

    摘要翻译: 本发明涉及可与文件一起使用的隐私电影。 隐私膜具有透光的聚合物基片,其具有相对的第一和第二表面。 多个导光元件从基片的第一表面突出。 基片可以由第一聚合物材料构成。 光引导元件可以由第二聚合物材料构成。 第一和第二聚合物材料可以是相同的材料。 导光元件在其横截面尺寸上基本上恒定并且基本上彼此平行地设置。