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sony's BLACK screen... ??

Discussion in 'Projectors, Screens & Video Processors' started by jkoc, Mar 8, 2005.

  1. jkoc

    jkoc
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  2. kballs

    kballs
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  3. Screen Scene

    Screen Scene
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    Hi ,

    The Black screen they have introduced is like such things a great idea in theory, but ask yourself this...why is edge masking black ?

    Answer to absorb the projected light and abient light and give contrast to the colours projected !

    The Harkness Hall HC Grey screens are available in 3 grades 0.8 / 0.6 / 0.4.

    If you go lower than that you are asking for trouble in defining the white balance.

    Also I would suppose that Sony only ever tested it with their high power projectors . :lease:
     
  4. kballs

    kballs
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    Actually SS, you are misinformed. The Sony black screen is "black" because it only reflects red, green, and blue light (with a sort of notch filter), it's not anything like a gray screen. Because of the notch filter, it looks black/charcoal color in ambient light, but it has a 1.7 gain for red/green/blue light which comes from a projector.

    The problem with it is the gain is actually too high/reflective for R/G/B which gives you a hot-spot, much like a shiny whiteboard would give you.
     

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