In a way you would be turning your light sensor into a light pen. Yes, this is grandpa speaking, who can still remember how beautiful his Commodore 64 was with a light pen. In effect, the screen is built up of horizontal lines that are "painted" sequentially. So the light pen would detect a light peak, send a signal to the computer, who looked at the where the video chip was currently painting. That way, the computer "knew" where you pointed the light pen at.
So yes, I can totally imagine that you would be able to read a QR code from your own screen that way.
I have seen a "3d print" version of this, where the regular plastic is used instead of wax. It is a nice way of making complex things, but there are a few drawbacks:
Off course, there are also advantages, such as the ability to control the material's properties during casting using chills
Looking at the picture, that was exactly my idea.
If the power fails, I don't think these fixed propellers used for the lift are going into autorotation. But luckily, that does not matter, as the stability will be gone as well. But hey, if you survived the blades while getting into the aircraft, you probably won't mind a bit of excitement...
In short, this does not look like anything that could ever get an approval from the aviation authorities
Liability is with the owner, because he was forced to sign a contract that makes him liable for anything.
There, fixed that for you.
In Management Science class, the tutor told us that engineers (he was speaking then of technical engineers, but it probably also works in other fields) would make one promotion too many in their life. In fact, they were trained at technical skills, but were expected to end up in management, of which they had only basic knowledge, or none at all.
And he told that often, the best engineer would be promoted to be department manager. This off course was not a good thing, as the best engineers were usually not the best managers.
I sincerely hope to make him proud by proving him wrong.
Plus, it'll now go on a witch-hunt looking for the leaker, which will erode morale.
Seriously, was there any morale left to erode?
Why are people paying for windows again?
Because they do not have a choice.
Retaining and recruiting talented technical personnel has become a top national security priority in recent years as Russia, China, Iran and other nation states and criminal groups have sharpened their cyber offensive abilities while the NSA wasted their resources on attacking their own civilians.
There, fixed that for you.
The IBM purchase of ROLM gives new meaning to the term "twisted pair". -- Howard Anderson, "Yankee Group"