Lighting technology has made great strides in the past few years, but people still can't use the light to simulate the effect of natural sunlight. Nowadays, this problem has finally made a breakthrough: a group of Italian scientists scatter the white LED light source with panels coated with special nanoparticles to create a clear blue sky at any time, in any weather and even in a dark room without windows. ".
Paolo di Trapani of the University of British Columbia's Como Campus and his colleagues used white LEDs as a light source to pass light through a transparent polymer panel with titanium dioxide nanoparticles attached. ——The tiny particles that we can't see with the naked eye can scatter the LED light in the way of scattering the sunlight from the Earth's atmosphere. The two kinds of particles attached to different parts of the transparent panel allow the scattered white light to exhibit two effects at the same time. One is "blue sky", and the other is a yellow-white bright spot similar to the sun shining directly overhead.
If you change the "blue sky" panel to a different panel, you can also simulate the natural light of the sunset, rainy weather and so on.
Most of the previous research on artificial sunlight is dedicated to making the spectrum of light consistent with sunlight, but to bring people a more natural feeling, the interaction between sunlight and the atmosphere can not be ignored, and Trapani and its The technology used by the team first considered this factor.
The existing panel prototype is 1.8 meters long and 0.85 meters wide. It was first shown at the International Lighting Fair in Frankfurt last month, and Trapattoni plans to use the CoeLux company, which is independent from the University of British Columbia. The panel is introduced to the market with the goal of mass production in the next year or two.
Paolo di Trapani of the University of British Columbia's Como Campus and his colleagues used white LEDs as a light source to pass light through a transparent polymer panel with titanium dioxide nanoparticles attached. ——The tiny particles that we can't see with the naked eye can scatter the LED light in the way of scattering the sunlight from the Earth's atmosphere. The two kinds of particles attached to different parts of the transparent panel allow the scattered white light to exhibit two effects at the same time. One is "blue sky", and the other is a yellow-white bright spot similar to the sun shining directly overhead.
If you change the "blue sky" panel to a different panel, you can also simulate the natural light of the sunset, rainy weather and so on.
Most of the previous research on artificial sunlight is dedicated to making the spectrum of light consistent with sunlight, but to bring people a more natural feeling, the interaction between sunlight and the atmosphere can not be ignored, and Trapani and its The technology used by the team first considered this factor.
The existing panel prototype is 1.8 meters long and 0.85 meters wide. It was first shown at the International Lighting Fair in Frankfurt last month, and Trapattoni plans to use the CoeLux company, which is independent from the University of British Columbia. The panel is introduced to the market with the goal of mass production in the next year or two.
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