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Monday, November 17, 2014

Mr. Sculley, eMagin CEO Addressed All These Concerns in His Description of eMagin's Immersive Head Mounted Display

including the "Brain Swoosh, If you're not successful then you feel sick."

The first problem is latency. That is, the time it takes to monitor someone’s movement, update an image and get it back in front of the user’s eye. In short, if it doesn’t happen pretty much instantaneously … you feel sick.
The second problem is sensitivity. For VR to really work, you need to monitor a person’s head movement in three dimensions. This means, if they turn around, or look up or down … and also if they lean forward or backwards.  If the developers haven’t got it right … you feel sick.
The third problem is one of refresh rates. That is, how many times a second the image updates. A TV shows images at 25 frames a second; a video game at 30 or 60. VR needs much more in order to fool the brain into believing that what it’s seeing is real. If the refresh rate is too slow or variable … again, you feel sick.
The fourth problem is what happens what you turn your head quickly. What we discovered with our DK2, is that if you don’t see what’s in between the two points, the brain ‘smooshes’ it into a blur. So developers need to simulate that as well. If they’re not successful then … you feel sick.



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