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Very cool but: > Currently, the contact lenses are only able to detect infrared radiation projected from an LED light source, but the researchers are working t

Very cool but: > Currently, the contact lenses are only able to detect infrared radiation projected from an LED light source, but the researchers are working to increase the nanoparticles’ sensitivity so that they can detect lower levels of infrared light. > “There are many potential applications right away for this material. For example, flickering infrared light could be used to transmit information in security, rescue, encryption or anti-counterfeiting settings.” Hmm

snitch182 1y ago
Good. I remember a certain video camera operating in the infrared fringe of the visible spectrum. You could see through light clothes. We do not want that again. At all.
- magicalhippo 1y ago
  All, or at least nearly all, digital camera sensors are sensitive in the IR. That's why most "normal" digital cameras have IR blocking filters. Security and astrophoto cameras have the filter removed. For astro there's also people who remove the filter manually[1]. [1]: https://camerasnipe.com/how-to-remove-the-ir-filter-from-a-digital-camera/ https://camerasnipe.com/how-to-remove-the-ir-filter-from-a-d...
  - NBJack 1y ago
    That link is kind of a fever dream of information a little ways in. Are you sure you meant to post that? "First, remove the smartphone camera’s infrared filter as a whiteboard is on the floor. The beginning of the CCD chip is the scar we need to eliminate. Enter the IRF address, and use a hot air gun to remove it and your piece."?
    - magicalhippo 1y ago
      Thanks for the catch. Was on the phone and in a hurry so didn't read the whole thing carefully, just several sections which looked ok. Several passages that do not make much sense, looks like weird translation errors or something. Sorry about that. Here's a proper guide[1] also with some sample post-conversion pictures. Though the specifics do vary from model to model so if you want to try make sure you find a suitable one, LifePixel has a collection[2] of model-specific tutorials for example. [1]: https://petapixel.com/2014/09/19/in-depth-diy-eos-550d-infrared-conversion/ https://petapixel.com/2014/09/19/in-depth-diy-eos-550d-infra... [2]: https://www.lifepixel.com/tutorials/infrared-diy-tutorials https://www.lifepixel.com/tutorials/infrared-diy-tutorials

snitch182 1y ago

Good. I remember a certain video camera operating in the infrared fringe of the visible spectrum. You could see through light clothes. We do not want that again. At all.

magicalhippo 1y ago
All, or at least nearly all, digital camera sensors are sensitive in the IR. That's why most "normal" digital cameras have IR blocking filters. Security and astrophoto cameras have the filter removed. For astro there's also people who remove the filter manually[1]. [1]: https://camerasnipe.com/how-to-remove-the-ir-filter-from-a-digital-camera/ https://camerasnipe.com/how-to-remove-the-ir-filter-from-a-d...
- NBJack 1y ago
  That link is kind of a fever dream of information a little ways in. Are you sure you meant to post that? "First, remove the smartphone camera’s infrared filter as a whiteboard is on the floor. The beginning of the CCD chip is the scar we need to eliminate. Enter the IRF address, and use a hot air gun to remove it and your piece."?
  - magicalhippo 1y ago
    Thanks for the catch. Was on the phone and in a hurry so didn't read the whole thing carefully, just several sections which looked ok. Several passages that do not make much sense, looks like weird translation errors or something. Sorry about that. Here's a proper guide[1] also with some sample post-conversion pictures. Though the specifics do vary from model to model so if you want to try make sure you find a suitable one, LifePixel has a collection[2] of model-specific tutorials for example. [1]: https://petapixel.com/2014/09/19/in-depth-diy-eos-550d-infrared-conversion/ https://petapixel.com/2014/09/19/in-depth-diy-eos-550d-infra... [2]: https://www.lifepixel.com/tutorials/infrared-diy-tutorials https://www.lifepixel.com/tutorials/infrared-diy-tutorials