I've never even had the pleasure of handling a NEX body but my guess is that the short distance between the lens and the sensor would mean it would be difficult to fit a mirror in between, even after factoring in that the mirror doesn't have to be at anywhere near 45° to reflect a proportion of the incident light towards the AF sensor. And I can't see Sony creating a third lens system either. If my first assumption is correct that rules out a NEX size camera with such an internal mirror and if the second assumption is correct then the resultant camera might as well be the same size as the current alpha line. Maybe the patent referred to is an attempt to stop any of the major players who have yet to enter the EVIL market from using such a system?
The current state of patent applications is utterly bewildering to me. I was brought up, albeit a long time ago in a galaxy far far away
, to believe that a patent could be granted only if the idea was novel, not patently
obvious and, of course, not already patented. To my untutored eye these pellicle arrangements fail on all counts. Maybe I should climb back in my spaceship and go home...