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There are fiber optic image inverter used inside military nightvision image intensifier tubes(IITs), I think that's the "fibers" mentioned here, although I am n
by numpad0 3y ago
There are fiber optic image inverter used inside military nightvision image intensifier tubes(IITs), I think that's the "fibers" mentioned here, although I am not sure if it's relevant for this application.
IIUC, it's a disc shaped dense bundle of fibers, fused at the ends and twisted 180 degrees, so to behave like a Porro or a pentaprism, but are lighter and simpler in specific ways it is in an IIT manufacturing line.
- iancmceachern 3y agoTotally, those are an amazing use case. In those, they use CRTs to amplify the light thousands of times. It's like that famous scene in Patriot games where Jack Ryan turns on the lights in his house and all the terrorists have their vision blown out. Those crts are expensive, big (long), they're electron guns after all. They are not a better for this application.