The Lytro camera didn't get as much attention as it could have, since Lytro didn't speak of it very often and development went a bit slowly.Still, the idea of capturing the whole light field and, thus, allowing for a photo to be refocused even after being shot, has merit.
Toshiba feels so at least. The company has released a small Lytro-style camera for smartphones and tablets, according to The Asahi Shimbum.
The method uses a number of lenses in front of the sensor to capture 500,000 pictures in one go.
The image resulting from that operation can be refocused by choosing one of the 500,000 focal settings.
The lenses have a diameter of 0.03 mm each and are arranged in front of a 5 x 7 mm sensor. Much smaller than the Lytro components.
As if this weren't enough, Toshiba's invention can capture video, not just still photos.