Originally Posted by BugsyLawson
I might well be wrong, but "Ultrapixels" sounds like a buzzword for Sony's IME135 Exmor RS stacked CMOS sensor (13.13MP effective resolution). Just food for thought.
Not as described. IMX135 is an RGBW-filtered chip. EDIT: Belay that, I forgot that Sony actually bailed on RGBW for IMX135. It's a standard Bayer-filtered chip like almost every other one on the market, now. (http://image-sensors-world.blogspot....n-stacked.html
What Pocket-lint described is a stacked sensor, much like Foveon (and nothing like the filtered sensor of Sony.)
If you're not familiar with Foveon, go look at Sigma's cameras. They are to date the only consumer product available with a Foveon sensor. (With the sole exception of the briefly-available, abortive Polaroid x530, which shipped and was then recalled for image quality problems, before sinking without a trace. Other than that, Foveon has only ever been used in a handful of industrial cameras, and in Sigma's products.)
That's not to say Foveon didn't try to sell the technology, but rather that they couldn't
. And eventually, they gave up and were absorbed by what was essentially their only customer; Sigma now owns them. They have a small but faithful following, and they have both advantages (color resolution and lack of color moiré / aliasing, for example) and disadvantages (high ISO sensitivity / noise, color channel separation, and sometimes bizarre artifacts). For certain uses they can be great, but they're not a mass-market consumer product.
Despite their initial claim all those years ago to have been focusing on mobile as a key area for their tech, we've never seen a Foveon camera with a smaller sensor than 1/1.8" (far bigger than almost all smartphones), and we've never seen a non-recalled product with a smaller sensor than 20.7 x 13.8mm (ie. 1.7x focal length crop; an SLR-sized sensor.) Foveon apparently had significant issues they couldn't resolve at smaller pixel sizes.
And as for this rumor, well... I don't put much faith in it. My guess is Pocket-lint's misunderstood or been misled by a source. The story simply doesn't make sense; HTC don't have the weight to get first call on a new tech like this unless nobody else really wants it. And if nobody else wants it, there's a reason for that.
Note I'm not saying work doesn't continue on full-color sensors. It does. I just don't see it appearing in mobile any time soon, and I don't see it being in HTC first when it finally does.
Originally Posted by hamdir
yup rumours are already speaking of a Sony Exmor Sensor
In which case, "Ultrapixels" is nothing more than marketing fluff.