Changing Visible Light into IR and then back

  • Context: Undergrad 
  • Thread starter Thread starter T.O.E Dream
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    Ir Light Visible light
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SUMMARY

The discussion centers on the feasibility of converting visible light from screens into infrared (IR) light and then back to visible light using specialized goggles. It is established that while downconversion can be achieved passively using suitable fluorophores or phosphors, upconversion necessitates additional energy, making the process complex. Active optical elements are required for effective implementation, particularly in imaging systems, indicating that the solution is not straightforward.

PREREQUISITES
  • Understanding of optical elements and their functions
  • Knowledge of fluorophores and phosphors for light conversion
  • Familiarity with upconversion and downconversion processes
  • Basic principles of infrared light and its applications
NEXT STEPS
  • Research active optical elements used in light conversion
  • Explore the properties and applications of fluorophores and phosphors
  • Study the principles of upconversion and downconversion in optics
  • Investigate technologies for creating goggles that convert IR back to visible light
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Optical engineers, researchers in photonics, and developers of specialized display technologies seeking to innovate in light manipulation and visibility solutions.

T.O.E Dream
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Is there a way to change visible light like the light coming out of the screen you're reading into infrared or any other invisible light and then take that and change it back somewhere else? What I'm what I'm trying to do is make a computer screen or maybe a T.V screen visible to only those who are wearing a certain type of goggles, that changes IR light back into visible light. Is this possible? And if so is it easy?
 
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Sure- with active optical elements. The downconversion (lower energy) can be done passively (and trivially) if you had a suitable fluorophore or phosphor. However, the upconversion requires energy.

So no- not easy. Even harder for an imaging system.
 

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