[opendtv] Re: Human Field of View; was Re: Re: Fwd: Expo 2005 (Sony GLV)
- From: Brian Park <floman@xxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Sat, 16 Jul 2005 13:28:46 -0500
Here's a 180 x 120 screen licensed from yours trully.
http://www.virtrasystems.com/pm_immersa.cfm
bp
flogiston
Manfredi, Albert E wrote:
>Craig Birkmaier wrote:
>
>
>
>>To create a totally immersive viewing experience
>>a screen needs to cover both the foveal high resolution
>>field, and the extra-foveal receptors that support low
>>resolution peripheral vision.
>>
>>To do this you need a screen that covers at least 120
>>degrees vertically and roughly 180 degrees horizontally.
>>
>>
>
>Indeed.
>
>And anything other than a curved, semi-circular screen
>cannot cover your 180 deg horizontal peripheral vision.
>Which is why practical screens, yes including Cinerama
>screens (which are indeed curved but not nearly curved
>enough), end up being much wider than they are high.
>
>In a previous post, I proposed not to pretend to be able
>to fill your field of view with a screen. Instead define
>areas outside the screen as being "angles of distraction."
>Try to make these zones more even in the horizontal and
>vertical.
>
>You will discover that even 3:1 screens are not wide
>enough, at typical viewing distances.
>
>Bert
>
>
>
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