Locomotive Source
It consists, as we know, from the rays of different colors, all of which follow a very convenient store by saying, "How One City Broke Jacques ringer Lantern" – red, orange, yellow, green, blue, indigo, purple. Now the eyes of our arranged so that at the same power source the brightest we think the yellow-green, red and purple will appear much dimmer. Therefore, we need a light source with a maximum radiation in the yellow-green – probably tell you. That's right. But this one problem and create a beautiful light source is far from exhausted.
Emission spectrum should resemble familiar to us sunlight, which means that in It should be in strict proportion to attend and light of other colors. In other colors in the world around artificial light will be greatly compromised. This entails a fairly significant trouble. Tailors and Artists can not properly understand the shades of color, people lit lamps giving the red color, will soon start complaining about the heat, and light blue – in the cold … Yes, yes, things will obstoyat this way – strength of the influence of color on others feel very great. It is well established by special investigations.
In addition, in an unusual light eyes get tired very quickly, people start complaining about eye diseases. And yet the light source must be economical, durable, comfortable and safe to use. To achieve all this is not easy. Indeed, this raises a whole bunch of contradictions. "LIGHTING Locomotive" What is conflict? First, the natural source light – the sun – has a surface temperature of about 6000 . Metal with a melting point on the earth there. Even high-melting tungsten at temperatures above 3000 begins to lose atoms through evaporation, and the filament quickly burn out. Second, the era of artificial lighting on our planet began to use low-temperature light sources – a fire torch, candles – all of these sources emit a rather large number of rays reddish color.