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So, this is a question I've not been able to find an answer for that's relevant: Where are the non-visible light sensitive CCD-style cameras? Why can't I take
by count 15y ago
So, this is a question I've not been able to find an answer for that's relevant:
Where are the non-visible light sensitive CCD-style cameras?
Why can't I take a 'picture' of the 2.4Ghz bouncing around my condo? Or the 1900Mhz rolling through walls and buildings? Things that are 'rf blocking' should show up brightly, while things that are 'rf transparent' should be ...well, transparent, like glass.
I feel like I'm misunderstanding a fundamental difference between 'light' and 'rf' here, so please point it out if I am.
- wtallis 15y agoThose frequencies you are asking about correspond to wavelengths of several inches. That would require a very large and thick camera, and probably a different sensor technology to be sensitive to the less energetic photons. Near-infrared and UV are easy, though.
- count 15y agoTIL that visible light is in the 400-800THz range. Things make way more sense now, I never realized it was that crazy high, relatively. Now I'm on a quest to build a RF pixel camera - thanks for the idea!
- sp332 15y agoHere's one way to "see" the actual wifi signal strength in an area. https://vimeo.com/20412632 https://vimeo.com/20412632