Two interesting bytes for you about Lumia 1020!!
First byte is about the name Lumia 909 for it. So, we have heard that it was earlier named as 909 and while we certainly don’t put any significance to the name, but isn’t it interesting that, it is listed as Lumia 909 even in WiFi certifications. So, was the name change done at the last moment? Anyways, as we had already seen in comments, many could have preferred that name as well!!
Second one is about the engineering miracle that the imaging unit on Lumia 1020 is. The Register, UK has taken in-depth look into how, Nokia’s engineering teams achieved the seemingly impossible task of fitting oversampling sensor, the floating OIS technology, the audio recording system and a new kind of Xenon flash (with flat capacitors to shave millimetres off the space) in an imaging sensor shown in the above picture with just 10 mm height.
According to Nokia Engineers, this is how it was done,
Firstly, a backside illuminated sensor was used – a smaller unit than the frontsize illuminated sensor. Secondly much more advanced manufacturing technology was deployed. Thirdly, the engineers decided to spread the components horizontally, rather than stack them vertically. The switch from ball bearings to springs helped, as did the new flat Xenon flash capacitors.
Also, if you wished to know how Lumia 1020 handles 41 MP sensor calculations without imaging chip like on 808 PureView, then below is the answer,
The advances in mobile GPUs are now sufficient for everything to be carried out in software – while the PureView 808 required a custom GPU. Although as I discovered, this required dedicated drivers and Nokia and Qualcomm engineers re-writing the off-the-shelf imaging stack for such hardware. The result was 5MP of far greater depth, accuracy and fidelity. Compare Nokia’s Lumia 925 – the best modern smartphone camera you can buy today – with the PureView 808.