Digital system and method for displaying images using shifted bit-weights for neutral density filtering applications
    1.
    发明申请
    Digital system and method for displaying images using shifted bit-weights for neutral density filtering applications 有权
    用于使用中性密度滤波应用的偏移位权重显示图像的数字系统和方法

    公开(公告)号:US20050146541A1

    公开(公告)日:2005-07-07

    申请号:US10753795

    申请日:2004-01-07

    IPC分类号: G09G3/20 G09G3/34 G09G5/00

    摘要: Disclosed herein are visual display systems and methods capable of having shifted bit-weights in neutral density filtering (NDF) applications. In one embodiment, a method (200) of displaying an image comprises transmitting light through an optical filter (17) comprising at least one high transmissivity portion configured to output light at an initial intensity, and at least one low transmissivity portion configured to output light at a lower intensity than the initial intensity, where the initial intensity and lower intensity output light illuminates a spatial light modulator (14). The method also includes providing a plurality of data bits (non-ND) from a predetermined number of data bits (B0-B7), where each of the plurality comprises a pulse-width longer than a load-time for operating the spatial light modulator (14). In this embodiment, the method further includes providing at least one data bit (ND) from the predetermined number of data bits, where the at least one data bit comprises an initial pulse-width less than the load-time and comprises an adjusted pulse-width greater than the load-time. Then, the method further comprises operating selected portions of the spatial light modulator (14) in coordination with the initial intensity and lower intensity output light using the pulse-widths of one or more of the plurality of data bits (non-ND) and the adjusted pulse-width of the at least one data bit (ND).

    摘要翻译: 这里公开的是能够在中性密度滤波(NDF)应用中具有偏移位权重的视觉显示系统和方法。 在一个实施例中,显示图像的方法(200)包括通过光学滤波器(17)发射光,所述滤光器(17)包括被配置为以初始强度输出光的至少一个高透射率部分和被配置为输出光的至少一个低透射率部分 其强度低于初始强度,其中初始强度和较低强度的输出光照射空间光调制器(14)。 该方法还包括从预定数量的数据位(B 0 -B 7)提供多个数据位(非ND),其中多个数据位包括比用于操作空间的负载时间长的脉冲宽度 光调制器(14)。 在该实施例中,该方法还包括从预定数量的数据位提供至少一个数据位(ND),其中至少一个数据位包括小于负载时间的初始脉冲宽度, 宽度大于加载时间。 然后,该方法还包括使用多个数据位(非ND)中的一个或多个的脉冲宽度和初始强度和较低亮度输出光的协调来操作空间光调制器(14)的选定部分,以及 调整所述至少一个数据位(ND)的脉冲宽度。