Artificial Sun Light

Can we have an artificial source of light like the Sun? Most probably not. It may not be possible. But we can think of an artificial light source with Sun light like colors. It is very much possible that the spectral emission of a light source may almost match that of the Sun. Today it is a reality. No I am not referring to white LEDs because white LEDs emit more in the blue wavelengths which can be hazardous to health of the living beings. The name of the light source that can emit a light spectrum almost like the Sun is called XED or Xenon Energy Saving Discharge Lamp.

Xenon Energy Saving Discharge Lamp or XED is a new lighting technology

XED (Xenon Energy Saving Discharge Lamp) is a new lighting technology. XED is probably the only artificial light source with full light spectrum similar to Sunlight. It can be evidenced from the photograph below. The natural color of the flowers are better perceived in the photograph shot under XED than that under LED and other light sources.

[Photographs of a bouquet of flowers under Sunlight, XED, LED, MHL and HPSL]

I came to know about XED in greater detail when I visited the XED Light Limited in Jiaxing City, Zhejiang Province, China on May 2017. My Chinese LinkedIn friend Erin Chen invited me to see their company, who happens to be the Marketing Director of the company. We are grateful to LinkedIn platform on which we got connected. I have invited her to beBee.

[May 28, 2017, the starting of the Dragon Festival outside the Jiaxing Railway Station]

The General Manager of XED Light Limited Mr. Yaozhou Tang welcomed me to their R&D lab. They showed me the entire lab and explained about the developments. I observed the exhibits and the demonstration rooms with utter curiosity. The illumination of a XED light gives almost a Sun light like effect.

[A XED lamp shown closely for my view, I took a photograph with their permission] 

Spectral Content of XED light is very close to the Sun light

If we compare the lighting effects of different light sources, it will be easy to infer which one gives better color perspectives of the illuminated color objects. A picture has already been shown above. Let us watch a video to get the real feeling of illumination.

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Debesh Choudhury is an academician and researcher. He is interested in the science and engineering of optics and electronics. He uses GNU/Linux, Free and Open Source Software for all his works related to computers, be it educational or entertainment, professional or personal.

#XED #SunLight #LED