Voz̧

Now I will tell you about the most unpleasant little thing in the life of a modern Geart. It’s not even a vehicle that we can’t fit into while standing; and not the clothes in which we are obliged to wear (invented by whom?) rules of decency, even though we are not entirely comfortable in them. Our main scourge is printed materials and screens.

The whole joke, so to speak, is in metamerism. You can read more about it at the link (https://ru.wikipedia.org/wiki/Metamerism_(color)), and I will explain quickly and briefly. Let's take, for example, a person - he has three types of cones in his eye, which react in a certain way to radiation with one wavelength or another. To a monochromatic radiation source (even yellow), these cones will give a certain response, which a person will perceive as yellow. But at the same time, you can take some other sources of radiation (red and green) and combine them so that the cones react to this mixed radiation in exactly the same way as to just yellow. The radiation is different, but the color is perceived by a person as the same.

The problem, as you can understand, is that the cones of Gearts and people are “tuned” to different wavelengths, and therefore the combination of intensities that causes the feeling of yellow in a person will cause something similar, but not the same color, in a Geart. And now attention: until recently, almost all printed materials were made based specifically on human (alvas and doors there too) metamerism. For example, the well-known CMYK system.

Screens? The same! The widely used RGB is also designed specifically for the human eye. Of course, the intensity of the components in the monitor can now be easily reconfigured, it is not that difficult - but here another problem arises. The Geart eye is also sensitive to parts of the so-called. “ultraviolet” spectrum - to those wavelengths that the human eye cannot perceive in principle. Blue LEDs in the RGB model shine at a wavelength of ~470 nm; violet colors (380 to 470 nm) can be created by adding red (metamerism again, hello). The human eye cannot see anything below 380-390 nm, but Gearts can see quite well, almost up to 300-310 nm.

So what should I do? The answer seems to be simple: either add another LED, or replace the blue one with something more ultraviolet. But where does this ultraviolet signal come from? After all, you need to additionally encode it, redo the camera matrices...

Of course, all these technologies already exist. But they are in little demand, difficult to produce - and therefore cost quite a lot of money. Perhaps one day four-channel RGBU systems will become widespread (and progress is slow, but it is moving in this direction), but for now we are content with what we have.

(in the photo there is a comparison of the color sensitivity of the cones of people and Gearts. People are solid, Gearts are dotted)