Create Sunlight: Artificial Possibility?

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Discussion Overview

The discussion explores the possibility of artificially creating sunlight using various types of lamps and light sources. Participants consider the theoretical and practical aspects of replicating sunlight's spectrum through different lighting technologies.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant proposes using multiple lamps with specific color outputs (blue, red, green) and incorporating UV and infrared lights, suggesting the use of prisms to combine these into a single beam resembling sunlight.
  • Another participant asserts that sunlight is essentially electromagnetic waves, implying that replication is feasible.
  • A different participant mentions quartz-tungsten lamps as being close to solar output in terms of color temperature, while noting that solar simulators using Xenon arcs provide higher fidelity but lack sufficient UV output.
  • Another contribution highlights aquarium lighting as being similar to full spectrum lights, potentially relevant for creating artificial sunlight.

Areas of Agreement / Disagreement

Participants express varying viewpoints on the feasibility of creating artificial sunlight, with no consensus reached on the best approach or the effectiveness of existing technologies.

Contextual Notes

Some claims depend on specific definitions of "sunlight" and the effectiveness of different light sources in replicating its spectrum. There are unresolved questions regarding the UV output of suggested lamps and the practical implementation of combining light through prisms.

bizzder
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would it be possible to artificially create 'sunlight' by the use of several lamps? for instance a bulb/cfc rich in blue light, another rich in red light, one rich in green light, by the use of UVb/UVa lights and infrared lights, and then, by the means of deflecting the specific lights (after breaking the lights up through a prism), combining them through another prism into a single white light beam that resembles sunlight like a single artificial light source can't?
 
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I think it's possible. After all, sunlight is nothing but a kind of electromagnetic wave.
 
Quartz-tungsten lamps are pretty close to solar output, as measured by the color temperature. For higher-fidelity sources, "solar simulators" use Xenon arcs with some spectral filtering. Neither of these have much UV output, tho.
 
Take a look at some aquarium lighting, as they are very close to full spectrum lights.
 

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