A Quick Recap – As we already know that Lytro if the first camera manufacturer to introduce shoot first and focus later technology , Lytro also recently announced its Lytro Illum (Buy Illum at Amazon)
But its look like Sony is also taking interest in Light Field Technology, Sony latest patent shows a new Light Field sensor that has been patented by Sony (United States Application US20140071244). The sensor has completely new design that may also eliminate the low resolution problem of current Light Field camera.
See more Sony Patents
src- sonyalpharumor.com