New IR technology?

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popper43

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China’s Infrared Contact Lenses Give Humans Near-Infrared Vision In Tests

Prototype infrared contact lenses convert near-IR light into visible signals. Here’s what the research achieved and its current status.
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Been in experimental mode for many years but maybe China found a use? Upconverting nanoparticle layer over a visible camera photo array? Unfortunately the visible conversion is not 'focused' so has to be a layer over the detector. Eye in the China use. Would make a very inexpensive IR scope!
 
  • Quantum Dot Films: MIT researchers developed thin-film materials using lead sulfide quantum dots and rubrene molecules. These films absorb IR photons and transfer energy to create high-energy excitons that emit visible light, a technology aimed at improving night-vision goggles and solar cells.
  • Optoelectronic Chips: Integrated devices combining PbSe nanocrystals with organic light-emitting diodes (OLEDs) or bipolar junction transistors have demonstrated high-efficiency conversion, with some prototypes achieving photon-to-photon conversion efficiencies exceeding 1,000% by amplifying the electrical signal generated by IR absorption.
 
Funny, PbSe was, IIRC, the material used in old sidewinder detector. Patent for amorphous silicon charger was sold to Japan (Sony) and UK guy invented OLEDs but sold patent to China as nobody else wanted it.
Edit: long time ago, Brits wanted to put camera on tank turret and a panoramic display inside. No periscope.
Reason for the post - if/when somebody puts the film layer on a cellphone camera array, IR prices will drop through the floor! Still have the germanium lens cost though.
 
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