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DLPC3435: how to set Vertical Offset?

Ray Hsu
Expert 1330 points
Part Number: DLPC3435

How to get the value of Y and Image Height?

any suggest for the value? thanks!

  • 0
    TI__Mastermind 20045 points

    Hello Ray,

    Obviously one of the easiest ways to get image height would be to directly measure the image. Alternatively, if you know the throw ratio of the projector, the display aspect ratio, and the distance to the projected screen, you could calculate the image height.  Using this method:

    Image Height = (Distance to Screen) / ((Throw Ratio) * (Aspect Ratio))

    For example, given the 2010 EVM and a distance to the screen of 12in you would get Image Height = 12/(1.65*1.78) = 4.1in. 

    If you are using one of our display EVMs the offset is 100%. This means that the image offset is 100% / 100 = 1. Other optics may have 0 offset. This link may help you visualize the image offset: e2e.ti.com/.../0216.Calculating-Image-Offset.bmp

    Let me know if that answered your question.

    Kyle