Originally Posted by
lavi rider
Second : The info screen should be transparent and at a highier position in your vision.
We have evaluated the Google glass for pilots application and it is completely unusable.
The info screen is not transparent but a blurred prism like. The center vision zone being offset into the upper sky ( flying your plane ), it actually gets completely obstructed by this blurred area and when the plane goes in there it gets quite scary.
Colimated HUD use prism technology. It is easy to give a completely crisp see through picture when the prism is placed 1 meter or more in front of the eye. However it is technically extremely challenging to achieve clarity when the prism is placed 0.8 cm in front of the eye. We are talking about nano polishing process at over 10,000 USD per screen.
Even the Google glass with its semi translucent display was way too expensive for the hobby pilot at 2500 USD per piece.