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DLP3010EVM-LC: 曝光时间上限问题

Part Number: DLP3010EVM-LC
Other Parts Discussed in Thread: DLPC3478

我在设置曝光时间市,想看看具体位图的投影,于是增加图片的曝光时间,但是基本超过2秒的曝光时间,

投影仪便无法投影出图片,像是卡死了,此时在set软件里自带的图片会出现错误,图片奇怪。

想问下这个曝光时间是不是有上限,还有是多少

  • 曝光时间根据不同的pattern类型(1bit、8bit)和光源类型(单色或RGB)有相应的范围,具体可以参考论坛置顶的DLPC347x Q&A第14个问题。

  • DLPC347X里边就5个问题啊,没看到我想知道的。

  • 请参考这个:[FAQ] Light Control EVMs (DLP3010EVM-LC and DLP2010EVM-LC)

  • 像之前有人问过,这里边的squence是什么意思,还有这个时间限制也不对啊,投影仪可以投影1677以上曝光时间的,还有TBD是什么意思呢

  • 你好,sequence是DLPC芯片对DMD的时序控制。曝光时间的计算和上限可以参考DLPC3478 软件的release note,相关描述如下:

    TBD的意思是待定。

      •  
      • Notes:
        • The maximum pattern period (pre-exposure + exposure + post-exposure) cannot exceed 2184us for 1-bit splash patterns and 17476us for 8-bit splash patterns.

     

      • The listed minimum dark times are applicable for the minimum exposure time of each sequence. The dark times scale along with the exposure time as per the following equation:
        • Tmin required pre-exposure dark time  = tsequence min pre-exposure dark time *(Tdesired exposure / tsequence minimum exposure) +1 (to round up if needed)
        • Tmin required post-exposure dark time = tsequence min post-exposure dark time *(Tdesired exposure / tsequence minimum exposure) +1 (to round up if needed)